2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-25 21:54:06 +08:00
Commit Graph

4557 Commits

Author SHA1 Message Date
Stephen Boyd
319663c7d1 Amlogic clock changes for 4.15
- Addition of Video Processing Unit VPU and VAPB clocks
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJZ6bW/AAoJEHfc29rIyEnRAvkP+wZhUNg/5s/tj68Qmc34yfRq
 WKk6Hn4ySOpjQr3DR0LNYevqNhVALFOsMGafIRnFIE89cLyoHqTjBn7K21TctOnj
 YyPjMx54PP46PjBV0XJ9jk1Km+z/JYa4A79xjW4x2lfaazxZfdXyfvOCHzWsmF6R
 jyLwsOwNyqpbP7eYqss5qXJeBVQ56VvjL35n3fLbbpTS56RsjXNGUMoS84WNECS4
 6ixs/YhpmkgJE+cOY9KaeDXmd8v9IWK4wWjcqty+CMiOZPmxW2LuxisVNEZriGQ4
 dmEiD/FSjqL7hNtNco2AHhvq/Erh96S1jf8lj8grHOSSIV+jVnA/zZNGCM4Myi2P
 lq7qI8EuQLa5PqVdRzG5RoWelbLkvJ351QQZolmLjAVTjAdSiwibFQHqF1Ofwnak
 CzG3qblgItnXhboreKwvP1VI6qmnGq7m3LWi3FT6Lp3GxUsEYsvT97RMjXpOerZN
 D7ZGoMKu4Qu2v8i1JWJzfDPuoAg0/+jz6HAx/nKgK6bgbNYjoJ3Llw+8Tf3wPjOm
 uJrEHKY2WpishRFbHclO9AftBAU4+8UBh9S6Gvz4l9tGeWklHVQh1u2F7jzmNyRT
 pNjWVEcuiX5ckNaARDqKZu0Lv5FYdTMfQQ6OdLnxTGmWCwB9QFnzIrI2AR/tuESl
 hfsh89AFS7f5QnzI9P41
 =rDVJ
 -----END PGP SIGNATURE-----

Merge tag 'meson-clk-for-4.15' of git://github.com/baylibre/clk-meson into clk-next

Pull Amlogic clock driver updates from Neil Armstrong:

 - Addition of Video Processing Unit VPU and VAPB clocks

* tag 'meson-clk-for-4.15' of git://github.com/baylibre/clk-meson:
  clk: meson: gxbb: Add VPU and VAPB clocks data
  clk: meson: gxbb: Add VPU and VAPB clockids
2017-10-31 16:25:07 -07:00
Stephen Boyd
ffc3eb6f3a Allwinner clock changes for 4.15
The most notable changes are:
   - Addition of sigma/delta modulation for the audio PLLs on the newer SoCs
   - A83t Display clocks supports
 
 There's also a bunch of minor fixes that didn't have any impact on current
 features provided by the kernel.
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJZ6ahsAAoJEBx+YmzsjxAgtvAQALfAX8+9HfJ7dk84s2qhLoZ6
 LsTujOAzUSWgOFDRhHK5vkqzq4GMqL+Tum57g7Sa7iStkYjSjtqDoMG3ajvehm1L
 rGqilZFMLSiOGiV2sQXmA8EANVjqNH6jeOc6Szwo7e0tqw5FC27TjN3jNHAAmd0z
 B9dmKQSaquMfHa+ldtOSmUjitY1uwq4dKdxuZrCxBVcgjJEwYuXOVCCioUN+d+/j
 ZRkcsoROW48FqVcsu9wONGYJxgKMVfkOR6P4QuTOfrw5Flvj5DZPYKMk0c2hYcEh
 FfSFJU7kq43dEIzD2sS4o17RTtoJQz8pO7qQ6TwL23sgtZuxvUKofhnSFbe7OV3P
 nqqiaDXEayjxNYD+aN4hpKBdK6rml9bhO8d1Y4d3dgFTdP3jhbsbO3CQebbzTKTs
 /KLyYKG3G7r3BrvY7XfrSRT1q68mp9O8GFxUMXCGwcESiqyBFLoDX32+25fZumtg
 2wADvSyTBHViJDsgHaJFuzG0rOKQLxVW2VUce3RFlFZAUCxZ9ZMrSj8ANhGfCqJ9
 RH9dpTVPVw1fPl1Lpx9ZLz9sE5Y+rQXn18etyV04rTuW9nlAQqua5wLicGEAz3Dq
 bln44RgngxpQk/0/O77Q6U+7F9gUdowwri+1m2m0s73xNjAUAE42SuCnuFZz7P3L
 4i58+Nv/CU9H98ew4TRR
 =4mo5
 -----END PGP SIGNATURE-----

Merge tag 'sunxi-clk-for-4.15' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-next

Pull Allwinner clock driver updates from Maxime Ripard:

  - Addition of sigma/delta modulation for the audio PLLs on the newer SoCs
  - A83t Display clocks supports
  - minor fixes that didn't have any impact on current features

* tag 'sunxi-clk-for-4.15' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: sun4i: Export video PLLs
  clk: sunxi-ng: Add A83T display clocks
  clk: sunxi-ng: sun8i: a23: Use sigma-delta modulation for audio PLL
  clk: sunxi-ng: sun6i: Use sigma-delta modulation for audio PLL
  clk: sunxi-ng: sun5i: Use sigma-delta modulation for audio PLL
  clk: sunxi-ng: sun4i: Use sigma-delta modulation for audio PLL
  clk: sunxi-ng: sun8i: h3: Use sigma-delta modulation for audio PLL
  clk: sunxi-ng: nm: Add support for sigma-delta modulation
  clk: sunxi-ng: Add sigma-delta modulation support
  clk: sunxi-ng: nm: Check if requested rate is supported by fractional clock
  clk: sunxi-ng: sun5i: Fix bit offset of audio PLL post-divider
  clk: sunxi-ng: a83t: Fix invalid csi-mclk mux offset
  clk: sunxi-ng: sun6i: Rename HDMI DDC clock to avoid name collision
  clk: sunxi-ng: sun6i: Export video PLLs
  clk: sunxi-ng: Implement reset control status readback
  clk: sunxi-ng: Fix missing CLK_SET_RATE_PARENT in ccu-sun4i-a10.c
  clk: sunxi-ng: add CLK_SET_RATE_PARENT flag to H3 GPU clock
  clk: sunxi-ng: add CLK_SET_RATE_UNGATE to all H3 PLLs
2017-10-31 14:52:21 -07:00
Stephen Boyd
ae74ac0828 clk/samsung updates for v4.15, part 2
- An addition of separate driver for the Exynos 4412 ISP CMU, needed
    to model and properly handle the clock controller's dependencies
    on the ISP power domain.
  - Adding __maybe_unused attributes to the exynos5433_cmu_{suspend,
    resume} ops to suppress compiler warnings with CONFIG_PM disabled.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABCAAGBQJZ5IjJAAoJEE1bIKeAnHqLsnIP/iPVWF3tkpKgc7v5cq3US+HW
 U7uU3/Di1A8jWgIVYyFVjAAceahz9xefu2rgCxsiUAkh1i+SdR9O9gAWq08AcmZu
 OMGWI7zMzH0GVvRXDbZsRGKVxtkrda519KnOTXorawhh1JnODuOzMBxMcAXm+zen
 bvPuqiXBvGXADFc18QtaR7JAd7sqd+rMFYCJ45RJAIf20Z9PPGJQPtkxfvkK2xRX
 nuB6ZaUfN9xrBVhWvjYq6WjKhkIO/j848B+0+l5GLi2au/a+nDN0qOYrMpFG8EQe
 k/6zu3xDTG/9UgKWNJN5fMon7QK82sOJTszDwDLLsttz5LhuUGV+oLHnAdt8rcgJ
 7UuTNRc169t0tNtoep6m/5kHn81XARSQAgPVKs5xuOfTef4lP3kXhbDLoIENx/+H
 fCDq7GteFat1Shu/01HZJhBe4MOolZLHsFvu7+KawB6CmD3KzDSckgRRIrEFDqck
 AYqxDmqJLaNbnJeTBsNRQQ3uX5D1wAaGKJLNq4HSfNOL3ZeOHQ2nxp0GgIOk7CSB
 agelkdpMaN4uNTB8cENnEIBv99bEkbdd4o5unCbO8lu3JgqfgjqFm6FjQZRR0ZQi
 uu1rFK+w7G239B6eBpkRLuJ7h8v3FntQy6FJOHHm8fKkHtN+BpBEUgX9EkJsW1QG
 ii7VgIaLm7QLcFOupKeh
 =DlbQ
 -----END PGP SIGNATURE-----

Merge tag 'clk-v4.15-exynos-pm' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk into clk-next

Pull Samsung clk driver updates from Sylwester Nawrocki:

 - An addition of separate driver for the Exynos 4412 ISP CMU, needed
   to model and properly handle the clock controller's dependencies
   on the ISP power domain.
 - Adding __maybe_unused attributes to the exynos5433_cmu_{suspend,
   resume} ops to suppress compiler warnings with CONFIG_PM disabled.

* tag 'clk-v4.15-exynos-pm' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk:
  clk: samsung: Add a separate driver for Exynos4412 ISP clocks
  clk: samsung: Add dt bindings for Exynos4412 ISP clock controller
  clk: samsung: Instantiate Exynos4412 ISP clocks only when available
  clk: samsung: exynos5433: mark PM functions as __maybe_unused
2017-10-30 17:59:10 -07:00
Stephen Boyd
faa865f18c clk/samsung updates for v4.15
Overall clk/samsung clean up and fixes. Removed remaining unused code
 after removal of exynos4212 SoC support; dropped internal data structure
 fields and related code for registering clkdev lookup entry for each
 possible clock object, clkdev aliases could still be defined if needed
 in a separate table; other minor fixes of the clock tree definitions.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABCAAGBQJZ4K7OAAoJEE1bIKeAnHqLlFUP/12Mnb3KIeO4WvNewZupUETd
 2BWpPHMS/4Al216I+RAZIgBU5lxx9xv0lMUeSfOWXwPMh/xReCY3SQ3N11KTE6DW
 6PwZpXtkYUyJ9sakVMNonczljfuWKFleRBscqPy3DH2S1vzG611lmmE8QvMmie2O
 shKrRQOwN7lWIGSQFdu1aSa/9OsHM9xsmgGGcAWMcpXTm26/nZ4EZxd7OU3nB39G
 fBzqjIP8hrvDKUi4b4+5uQxaXTYN8HKTmteWJzlXtXglVR55Wu7DmXXK4eFDLsmh
 iE3lkUnFK2cgkQjANJeeF/GK19ZvIVjlzEGX66IrAUG8qTDSgLDCWJRxW6qwm9jl
 KrSyC4d1D6GfymcVWUe8drixdeimVpOxyg/FCzyJXA8jkWUfwJJvi4eqJ3inPbh7
 5fv84bTxm4xOhWYOLWu4r0Z9GvxDl/DyeW5tJhkGh7ZSWBWng9f2FDZp9aloJf4K
 DPopqAt5e+8NCe1jyKCNLdDrZxlHp7xyYu+n/xTAVOxS/BZJ+bKvuGIp6b39dzhB
 LMdTwwuwDCneEINROH09FqqH7y+HqyG2vR7cFaiShzP02OE0YGu20WlhRykzajFj
 XhXwfDiGzgTiLjuCS3BbtuYlgFxWAmjo81/3nuJ8MTZYDaXLWuaGCWHYvSc2+oFy
 AiNNDhap38/ed2cLdsgl
 =VHBX
 -----END PGP SIGNATURE-----

Merge tag 'clk-v4.15-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk into clk-next

Pull Samsung clk driver updates from Sylwester Nawrocki:

Overall clk/samsung clean up and fixes. Removed remaining unused code
after removal of exynos4212 SoC support; dropped internal data structure
fields and related code for registering clkdev lookup entry for each
possible clock object, clkdev aliases could still be defined if needed
in a separate table; other minor fixes of the clock tree definitions.

* tag 'clk-v4.15-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk:
  clk: samsung: Remove obsolete clkdev alias support
  clk: samsung: Add explicit MPLL, EPLL clkdev aliases in S3C2443 driver
  clk: samsung: Rework clkdev alias handling in S3C2443 driver
  clk: samsung: Rework clkdev alias handling in Exynos5440 driver
  clk: samsung: Drop useless alias in Exynos5420 clk driver
  clk: samsung: Remove clkdev alias support in Exynos5250 clk driver
  clk: samsung: Remove double assignment of CLK_ARM_CLK in Exynos4 driver
  clk: samsung: Remove clkdev alias support in Exynos4 clk driver
  clk: samsung: Remove support for obsolete Exynos4212 CPU clock
  clk: samsung: Remove support for Exynos4212 SoCs in Exynos CLKOUT driver
  clk: samsung: Properly propagate flags in __PLL macro
  clk: samsung: Fix m2m scaler clock on Exynos542x
  clk: samsung: Delete a memory allocation error message in clk-cpu.c
2017-10-25 02:37:03 -07:00
Stephen Boyd
f09a6b86fd clk: renesas: Updates for v4.15
- Add support for the new R-Car V3M SoC,
   - Small fixes and cleanups.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJZ1KotAAoJEEgEtLw/Ve77AdgP/23DpYzhjEO4AhCjSqoYRnAM
 Z6OS0a2IaUxmdDgj6czlD0cbILFx75TCFP3byMCjBThd4rQ5P5R0TjY/b+cPicyq
 rWMJc6az2Yh7XzqV/FPTn6t67U8Kqn8du9e99gEnaNUF9GLOjB2BfyIUN8azGY+K
 MuEUwNBXFkw30z7G/iSSWAjQe0CnND8HlU+AHWgeK/4MS9axmyVbHFJyTkgoKgct
 2w3EnpQF+r3cb8whg/FpHF40rRdeU/KmgThPY5BkO+DaOfzDUxpYnZ5IsFY9zvUr
 dEaizgAN0D1Mw8k4peHyroM40Ju8o5t7o95NYNuvp38cfxYLWeox0bwblfJMNsrm
 l08u0NztjsgxGLUA/AAR78yMME0dr5MF/jk7UmIdhwL4KONUb7blCkVuKqWak9Hi
 uriUTO1velm7s7pMIlmLxdrLyE5UP2CtRO/973QsSS9lCjiVcLybJme8ICU0sklm
 2vaqguNm/XDFyTM75nv8yglM9Ksm6ZoEvmgkgtDGlwxzMni9shKsX1f8nEAsiI+T
 gAWXsd0Qz/kkgX0BJiUDa1FgCPCM5BdBAMcmJsT2+ukeUU1KKevcpE5moqEIMl6x
 QboI/2v0XJimxU7lJ8pX2TGNYdY3yO3WQJDhrdyud6pkijPkVNqQOZMtAhy7Xzj4
 pKTkswWsN9+ZSmXpWCs9
 =PTM+
 -----END PGP SIGNATURE-----

Merge tag 'clk-renesas-for-v4.15-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next

Pull Renesas clk driver updates from Geert Uytterhoeven:

  - Add support for the new R-Car V3M SoC,
  - Small fixes and cleanups.

* tag 'clk-renesas-for-v4.15-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
  clk: renesas: rcar-gen2: Delete error message for failed memory allocation
  clk: renesas: mstp: Delete error messages for failed memory allocations
  clk: renesas: cpg-mssr: Add R8A77970 support
  dt-bindings: clock: Add R8A77970 CPG core clock definitions
2017-10-25 02:34:15 -07:00
Masahiro Yamada
db9d79f6e7 clk: uniphier: fix clock data for PXs3
Fix reg offsets of USB clocks.

Fixes: 736de651a8 ("clk: uniphier: add PXs3 clock data")
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-10-24 01:57:24 -07:00
Geert Uytterhoeven
3f7a4d0841 clk: renesas: rcar-gen3: Restore R clock during resume
On R-Car Gen3 systems, PSCI system suspend powers down the SoC, losing
clock configuration.  Register a notifier to save/restore the RCKCR
register during system suspend/resume.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
2017-10-20 11:16:09 +02:00
Geert Uytterhoeven
9f55b17ff6 clk: renesas: rcar-gen3: Restore SDHI clocks during resume
On R-Car Gen3 systems, PSCI system suspend powers down the SoC, losing
clock configuration.  Register a notifier to save/restore SDHI clock
registers during system suspend/resume.

This is implemented using the cpg_simple_notifier abstraction, which can
be reused for others clocks that just need to save/restore a single
register.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
2017-10-20 11:16:05 +02:00
Geert Uytterhoeven
9f8c71e513 clk: renesas: div6: Restore clock state during resume
On R-Car Gen3 systems, PSCI system suspend powers down the SoC, losing
clock configuration.  Register an (optional) notifier to restore the
DIV6 clock state during system resume.

As DIV6 clocks can be picky w.r.t. modifying multiple register fields at
once, restore is not implemented by blindly restoring the register
value, but by using the existing cpg_div6_clock_{en,dis}able() helpers.

Note that this does not yet support DIV6 clocks with multiple parents,
which do not exist on R-Car Gen3 SoCs.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
2017-10-20 11:15:37 +02:00
Geert Uytterhoeven
1f4023cdd1 clk: renesas: cpg-mssr: Add support to restore core clocks during resume
On R-Car Gen3 systems, PSCI system suspend powers down the SoC, possibly
losing clock configuration.  Hence add a notifier chain that can be used
by core clocks to save/restore clock state during system suspend/resume.

The implementation of the actual clock state save/restore operations is
clock-specific, and to be registered with the notifier chain in the SoC
or family-specific cpg_mssr_info.cpg_clk_register() callback.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
2017-10-20 11:15:33 +02:00
Geert Uytterhoeven
560869100b clk: renesas: cpg-mssr: Restore module clocks during resume
During PSCI system suspend, R-Car Gen3 SoCs are powered down, and their
clock register state is lost.  Note that as the boot loader skips most
initialization after system resume, clock register state differs from
the state encountered during normal system boot, too.

Hence after s2ram, some operations may fail because module clocks are
disabled, while drivers expect them to be still enabled.  E.g. EtherAVB
fails when Wake-on-LAN has been enabled using "ethtool -s eth0 wol g":

    ravb e6800000.ethernet eth0: failed to switch device to config mode
    ravb e6800000.ethernet eth0: device will be stopped after h/w processes are done.
    ravb e6800000.ethernet eth0: failed to switch device to config
    PM: Device e6800000.ethernet failed to resume: error -110

In addition, some module clocks that were disabled by
clk_disable_unused() may have been re-enabled, wasting power.

To fix this, restore all bits of the SMSTPCR registers that represent
clocks under control of Linux.

Notes:
  - While this fixes EtherAVB operation after resume from s2ram,
    EtherAVB cannot be used as an actual wake-up source from s2ram, only
    from s2idle, due to PSCI limitations,
  - To avoid overhead on platforms not needing it, the suspend/resume
    code has a build time dependency on sleep and PSCI support, and a
    runtime dependency on PSCI.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
2017-10-20 11:15:29 +02:00
Fabrizio Castro
9dc0ddee8d clk: renesas: cpg-mssr: Add du1 clock to R8A7745
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-10-20 11:00:02 +02:00
Geert Uytterhoeven
d454cecc63 clk: renesas: rz: clk-rz is meant for RZ/A1
The RZ family of Renesas SoCs has several different subfamilies (RZ/A,
RZ/G, RZ/N, and RZ/T).  Clarify that the renesas,rz-cpg-clocks DT
bindings and clk-rz driver apply to RZ/A1 only.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Rob Herring <robh@kernel.org>
2017-10-20 10:59:54 +02:00
Neil Armstrong
762a1f2098 clk: meson: gxbb: Add VPU and VAPB clocks data
The Amlogic Meson GX SoCs needs these two clocks to power up the
VPU power domain.

These two clocks are similar to the MALI clocks by having a glitch-free
mux and two similar clocks with gate, divider and muxes.

Acked-by: Jerome Brunet <jbrunet@baylibre.com>
[narmstrong: removed the CLK_IGNORE_UNUSED on muxes and dividers]
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-10-20 10:34:49 +02:00
Neil Armstrong
4cf8f811c6 clk: meson: gxbb: Add VPU and VAPB clockids
Add the clkids for the clocks feeding the Video Processing Unit.

Acked-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-10-20 10:24:30 +02:00
Arnd Bergmann
e7ffa44d37 This pull request contains Broadcom ARM-based SoC/Kconfig changes for 4.15
please pull the following:
 
 - Danilo removes the clock provider driver stubs which are no longer needed
   now that we have a proper CPRMAN clock provider driver
 
 - Stefan moves the SMP startup code for BCM2836 from the interrupt controller
   driver down to where it belongs in the architecture code, this was requested
   by Marc Zyngier before comitting any fixes to that code
 
 - Phil provides a fix for a future Raspberry Pi firmware which will make the
   secondary cores wait for an event and therefore requires the CPU onlining
   other cores to send such event (along with the appropriate barrier)
 
 - Florian fixes the BRCMSTB UART debug stub to work correctly when using an
   ARM BE8 kernel since there were some missing register read swapping needed
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABCAAGBQJZyVHeAAoJEIfQlpxEBwcE7AMP/jnZEy5IFVj/CwfJ2TeGm3/a
 qHY3+OVgslDwmYclT5Ce/HVmlcSxiwiUQa5f5oRuIPKdjJN4pQaAi6H/axK0n5Xf
 ZUgqbkZ+yqYDmwC5YtzUqlV1i6u5o5LyQfsbP1Q/ql7eWh3xIGLBo3Ou7fjJKy7m
 afF+VRStKbHblzDL1GMeW4VTCmDpSWq1bNAz8GE54SrArlMe327oUwoynVs7D8/a
 ENExNdUNz8ZuMX5JBjn26Feexetsa+8cq03DTl50Ij61N17BxYrQZDvnrchgdF4t
 L2mImw14KEBuz1bvc+No3kKYnX4wHHA/qj86ecP+LtAURm4wKQWk7blcCQiJwbiZ
 upwLgGSZp1opK11RhHKV9Br0diR59ipq9Y+Vzrqsq+NEpnjz7zahuPZHZ877sY15
 WZ8PXGdnvs9FEi259Cx3von6JcyZ6enpcNKKf0PmBHZjmPcMQ1ZVLrZiUVAQD5qt
 vX3x5iDDF+CuStxXgmApnp1S6D5SttdTIj7mcOkADywt6F5l9hlNX5phyG3VVYIR
 1wbi5wkyvdIWdFTFtE5YrGdtikBHsTtnMZAii2P7HQP0xq2colM4XB1nMVvRIG1B
 7Ky+qucZkj+syIb+cih6OIzoWoz4IJBbK54W3bowBPhSfflQkxuhO8RUdMTR5krb
 bDrcnH7ICOpe51OhGJ5O
 =h/36
 -----END PGP SIGNATURE-----

Merge tag 'arm-soc/for-4.15/soc' of http://github.com/Broadcom/stblinux into next/soc

Pull "Broadcom soc changes for 4.15 (part 1)" from Florian Fainelli:

This pull request contains Broadcom ARM-based SoC/Kconfig changes for 4.15
please pull the following:

- Danilo removes the clock provider driver stubs which are no longer needed
  now that we have a proper CPRMAN clock provider driver

- Stefan moves the SMP startup code for BCM2836 from the interrupt controller
  driver down to where it belongs in the architecture code, this was requested
  by Marc Zyngier before comitting any fixes to that code

- Phil provides a fix for a future Raspberry Pi firmware which will make the
  secondary cores wait for an event and therefore requires the CPU onlining
  other cores to send such event (along with the appropriate barrier)

- Florian fixes the BRCMSTB UART debug stub to work correctly when using an
  ARM BE8 kernel since there were some missing register read swapping needed

* tag 'arm-soc/for-4.15/soc' of http://github.com/Broadcom/stblinux:
  ARM: brcmstb: Add appropriate ARM_BE8() macros for swapping
  ARM: bcm2836: Send event when onlining other cores
  irqchip: bcm2836: Move SMP startup code to arch/arm (v2)
  clk: bcm2835: remove remains from stub clk driver
2017-10-19 18:07:09 +02:00
Bhumika Goyal
d83b26e0f2 clk: tegra: Make tegra_clk_pll_params __ro_after_init
These structures are only passed to the functions tegra_clk_register_pll,
tegra_clk_register_pll{e/u} or tegra_periph_clk_init during the init
phase. These functions modify the structures only during the init phase
and after that the structures are never modified. Therefore, make them
__ro_after_init.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Acked-By: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-10-19 16:38:42 +02:00
Thierry Reding
bc2e4d2986 clk: tegra: Fix sor1_out clock implementation
This clock was previously called sor1_src and was modelled as an input
to the sor1 module clock. However, it's really an output clock that can
be fed either from the safe, the sor1_pad_clkout or the sor1 module
clocks. sor1 itself can take input from either of the display PLLs.

The same implementation for the sor1_out clock is used on Tegra186, so
this nicely lines up both SoC generations to deal with this clock in a
uniform way.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-10-19 16:38:41 +02:00
Thierry Reding
1d7e2c8e54 clk: tegra: Use tegra_clk_register_periph_data()
Instead of open-coding the same pattern repeatedly, reuse the newly
introduced tegra_clk_register_periph_data() helper that will unpack
the initialization structure.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-10-19 16:38:41 +02:00
Thierry Reding
8be95190da clk: tegra: Add peripheral clock registration helper
There is a common pattern that registers individual peripheral clocks
from an initialization table. Add a common implementation to remove the
duplication from various call sites.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-10-19 16:38:40 +02:00
Timo Alho
231ca2e583 clk: tegra: Check BPMP response return code
Check return code in BPMP response message(s). The typical error case is
when a clock operation is attempted with an invalid clock identifier.

Also remove error print from call to clk_get_info() as the
implementation loops through the range of all possible identifiers, yet
the operation is expected to error out when the clock ID is unused.

Signed-off-by: Timo Alho <talho@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-10-19 16:38:40 +02:00
Jonathan Liu
4328a2186e clk: sunxi-ng: sun4i: Export video PLLs
The video PLLs are used directly by the HDMI controller. Export them so
that we can use them in our DT node.

Signed-off-by: Jonathan Liu <net147@gmail.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-10-17 19:32:16 +02:00
Maxime Ripard
553c7d5ba2 clk: sunxi-ng: Add A83T display clocks
Unfortunately, the A83t display clocks are not children of the de clock,
since that clocks doesn't exist at all on the A83t.

For now, they are orphans, so let's move them to their true, existing,
parent.

Fixes: 763c5bd045 ("clk: sunxi-ng: add support for DE2 CCU")
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-10-17 16:55:28 +02:00
Marek Szyprowski
7679eb2035 clk: samsung: Add a separate driver for Exynos4412 ISP clocks
Some registers for the Exynos 4412 ISP (Camera subsystem) clocks are
located in the ISP power domain. Because those registers are also
located in a different memory region than the main clock controller,
support for them can be provided by a separate clock controller.
This in turn allows to almost seamlessly make it aware of the power
domain using recently introduced runtime PM support for clocks.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-10-16 11:25:50 +02:00
Marek Szyprowski
75920aac27 clk: samsung: Instantiate Exynos4412 ISP clocks only when available
Some registers for the Exynos 4412 ISP (Camera subsystem) clocks are
located in the ISP power domain. Instantiate those clocks only when
provided clock registers resource covers those registers. This is
a preparation for adding a separate clock driver for ISP clocks,
which will be integrated with power domain using runtime PM feature.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-10-16 11:24:54 +02:00
Geert Uytterhoeven
0022e4a2ef clk: renesas: r8a77995: Correct parent clock of INTC-AP
According to the R-Car Gen3 Hardware Manual Errata for Rev 0.55 of
September 8, 2017, the parent clock of the INTC-AP module clock on R-Car
D3 is S1D2.

This change has no functional impact.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-10-16 09:38:39 +02:00
Geert Uytterhoeven
6e7ddf89d6 clk: renesas: r8a7796: Correct parent clock of INTC-AP
According to the R-Car Gen3 Hardware Manual Errata for Rev 0.55 of
September 8, 2017, the parent clock of the INTC-AP module clock on R-Car
M3-W is S0D3.

This change has no functional impact.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-10-16 09:38:38 +02:00
Geert Uytterhoeven
21bffe57f8 clk: renesas: r8a7795: Correct parent clock of INTC-AP
According to the R-Car Gen3 Hardware Manual Errata for Rev 0.55 of
September 8, 2017, the parent clock of the INTC-AP module clock on R-Car
H3 ES2.0 is S0D3.

This change has no functional impact.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-10-16 09:38:38 +02:00
Heiko Stuebner
47e3ec0e4d clk: rockchip: use new cif/vdpu clock ids on rk3188
Use the new clock-ids for cif, vdpu, vepu on rk3188

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-10-14 21:32:11 +02:00
Romain Perier
216ac5297a clk: rockchip: export clock pclk_efuse_256 for RK3368 SoCs
This exports the clock for the pclk gate of the eFuse that is part of
the RK3368 SoCs. So we can use it from the dt-bindings.

Signed-off-by: Romain Perier <romain.perier@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-10-14 21:31:58 +02:00
Chen-Yu Tsai
24ea78a09f clk: sunxi-ng: sun8i: a23: Use sigma-delta modulation for audio PLL
The audio blocks require specific clock rates. Until now we were using
the closest clock rate possible with integer N-M factors. This resulted
in audio playback being slightly slower than it should be.

The vendor kernel gets around this (for newer SoCs) by using sigma-delta
modulation to generate a fractional-N factor. As the PLL hardware is
identical in most chips, we can back port the settings from the newer
SoC, in this case the H3, onto the A23.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-10-13 09:27:38 +02:00
Chen-Yu Tsai
ee6501d692 clk: sunxi-ng: sun6i: Use sigma-delta modulation for audio PLL
The audio blocks require specific clock rates. Until now we were using
the closest clock rate possible with integer N-M factors. This resulted
in audio playback being slightly slower than it should be.

The vendor kernel gets around this (for newer SoCs) by using sigma-delta
modulation to generate a fractional-N factor. As the PLL hardware is
identical in most chips, we can back port the settings from the newer
SoC, in this case the H3, onto the A31.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-10-13 09:27:34 +02:00
Chen-Yu Tsai
042f7f8f97 clk: sunxi-ng: sun5i: Use sigma-delta modulation for audio PLL
The audio blocks require specific clock rates. Until now we were using
the closest clock rate possible with integer N-M factors. This resulted
in audio playback being slightly slower than it should be.

The vendor kernel gets around this (for newer SoCs) by using sigma-delta
modulation to generate a fractional-N factor. As the PLL hardware is
identical in most chips, we can back port the settings from the newer
SoC, in this case the H3, onto the sun5i family.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-10-13 09:27:29 +02:00
Chen-Yu Tsai
de34485191 clk: sunxi-ng: sun4i: Use sigma-delta modulation for audio PLL
The audio blocks require specific clock rates. Until now we were using
the closest clock rate possible with integer N-M factors. This resulted
in audio playback being slightly slower than it should be.

The vendor kernel gets around this (for newer SoCs) by using sigma-delta
modulation to generate a fractional-N factor. As the PLL hardware is
identical in most chips, we can back port the settings from the newer
SoC, in this case the H3, onto the A10 and A20.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-10-13 09:27:23 +02:00
Chen-Yu Tsai
a5e3e2b2ef clk: sunxi-ng: sun8i: h3: Use sigma-delta modulation for audio PLL
The audio blocks require specific clock rates. Until now we were using
the closest clock rate possible with integer N-M factors. This resulted
in audio playback being slightly slower than it should be.

The vendor kernel gets around this (for newer SoCs) by using sigma-delta
modulation to generate a fractional-N factor. This patch copies the
parameters for the H3.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-10-13 09:27:18 +02:00
Chen-Yu Tsai
392ba5fafc clk: sunxi-ng: nm: Add support for sigma-delta modulation
Some of the N-M-style clocks, namely the PLLs, support sigma-delta
modulation to do fractional-N frequency synthesis. This is used in
the audio PLL to generate the exact frequency the audio blocks need.
These frequencies can not be generated with integer N-M factors.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-10-13 09:27:13 +02:00
Chen-Yu Tsai
05d2eaac96 clk: sunxi-ng: Add sigma-delta modulation support
Sigma-delta modulation is supported for some PLLs. This allows
fractional-N multipliers to be used. In reality we don't know
how to configure the individual settings for it. However we can
copy existing settings from the vendor kernel to support clock
rates that cannot be generated from integer factors, but are
really desired. The vendor kernel only uses this for the audio
PLL clock, and only on the latest chips.

This patch adds a new class of clocks, along with helper functions.
It is intended to be merged into N-M-factor style clocks as a
feature, much like fractional clocks.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-10-13 09:27:06 +02:00
Chen-Yu Tsai
4cdbc40d64 clk: sunxi-ng: nm: Check if requested rate is supported by fractional clock
The round_rate callback for N-M-factor style clocks does not check if
the requested clock rate is supported by the fractional clock mode.
While this doesn't affect usage in practice, since the clock rates
are also supported through N-M factors, it does not match the set_rate
code.

Add a check to the round_rate callback so it matches the set_rate
callback.

Fixes: 6174a1e24b ("clk: sunxi-ng: Add N-M-factor clock support")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-10-13 09:27:00 +02:00
Chen-Yu Tsai
d51fe3ba97 clk: sunxi-ng: sun5i: Fix bit offset of audio PLL post-divider
The post-divider for the audio PLL is in bits [29:26], as specified
in the user manual, not [19:16] as currently programmed in the code.
The post-divider has a default register value of 2, i.e. a divider
of 3. This means the clock rate fed to the audio codec would be off.

This was discovered when porting sigma-delta modulation for the PLL
to sun5i, which needs the post-divider to be 1.

Fix the bit offset, so we do actually force the post-divider to a
certain value.

Fixes: 5e73761786 ("clk: sunxi-ng: Add sun5i CCU driver")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-10-13 09:26:56 +02:00
Florian Fainelli
04c3767f10 clk: bcm: Add Broadcom Hurricane 2 clock support
Add support for the Broadcom Hurricane 2 SoC clock controller. We can
re-use the existing iProc clock library since the SoC's architecture is
largely the same as its predecessors. For now, we just initialize the
iProc ARM PLL.

Acked-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2017-10-12 11:31:46 -07:00
Arnd Bergmann
4e8975cbb5 clk: samsung: exynos5433: mark PM functions as __maybe_unused
The suspend/resume functions are referenced conditionally, causing
a harmless warning when CONFIG_PM is disabled:

drivers/clk/samsung/clk-exynos5433.c:5476:12: error: 'exynos5433_cmu_resume' defined but not used [-Werror=unused-function]
drivers/clk/samsung/clk-exynos5433.c:5453:12: error: 'exynos5433_cmu_suspend' defined but not used [-Werror=unused-function]

This marks both as __maybe_unused to shut up the warning.

Fixes: 523d3de41f ("clk: samsung: exynos5433: Add support for runtime PM")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-10-11 11:25:13 +02:00
Marek Szyprowski
a4f21e9ceb clk: samsung: Remove obsolete clkdev alias support
Remove support for obsolete clkdev alias definition in generic helper
macros for MUX, DIV, GATE and PLL clocks. clkdev aliases can be still
created using samsung_clk_register_alias() function if given platform
still needs them. All current drivers have been converted not to use
*_A-style macros and checked if there are any clients for the PLL
clocks, which had aliases created unconditionally.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-10-09 11:34:03 +02:00
Marek Szyprowski
45d882daf8 clk: samsung: Add explicit MPLL, EPLL clkdev aliases in S3C2443 driver
S3C2443 platform still use non-dt based lookup in some of its drivers
to get MPLL and EPLL clocks. Till now it worked only because PLL()
macro implicitly created aliases for all instantiated clocks. This
feature will be removed, so explicitly create aliases for MPLL and
EPLL clocks.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-10-09 11:32:56 +02:00
Marek Szyprowski
cd05417f72 clk: samsung: Rework clkdev alias handling in S3C2443 driver
S3C2443 SoC still uses old, non-dt CPUfreq driver, which requires clkdev
aliases to get access to proper clocks. Create those aliases using
samsung_clk_register_alias() function instead of using *_A clock macros,
which will be removed soon.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-10-09 11:32:26 +02:00
Marek Szyprowski
efea8d3771 clk: samsung: Rework clkdev alias handling in Exynos5440 driver
Exynos5440 still uses old, non-dt CPUfreq driver, which requires clkdev
aliases to get access to proper clocks. Create those aliases using
samsung_clk_register_alias() function instead of using *_A clock macros,
which will be removed soon.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-10-09 11:32:09 +02:00
Marek Szyprowski
36ba48240b clk: samsung: Drop useless alias in Exynos5420 clk driver
Drop clkdev alias for "mout_aclk400_mscl" clock. It was not used at all
and it was probably committed by accident.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-10-09 11:31:49 +02:00
Marek Szyprowski
29964890f3 clk: samsung: Remove clkdev alias support in Exynos5250 clk driver
All Exynos5250 boards have been fully converted to device-tree and use
generic dt-based CPUfreq driver, so there is no need to create any clkdev
aliases for the clocks. Drop all the code related to aliases handling.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-10-09 11:31:29 +02:00
Marek Szyprowski
6de08891c8 clk: samsung: Remove double assignment of CLK_ARM_CLK in Exynos4 driver
CLK_ARM_CLK ("armclk") clock is provided by cpu-clk subdriver, which is
instantiated after creating all divider clocks from exynos4_div_clks
array. There is no point assigning this id to "div_core2" clock and later
overwrite with proper "armcpu" clock by cpu-clk subdriver.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-10-09 11:30:05 +02:00
Marek Szyprowski
58f4a5ff3a clk: samsung: Remove clkdev alias support in Exynos4 clk driver
All Exynos4 boards have been fully converted to device-tree and use generic
dt-based CPUfreq driver, so there is no need to create any clkdev aliases
for the clocks. Drop all the code related to aliases handling.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-10-09 11:29:41 +02:00
Marek Szyprowski
c9194fb623 clk: samsung: Remove support for obsolete Exynos4212 CPU clock
Support for Exynos 4212 SoC has been removed by commit bca9085e0a ("ARM:
dts: exynos: remove Exynos4212 support (dead code)"), so there is no need
to keep dead code.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-10-09 11:29:28 +02:00
Marek Szyprowski
d5cd103b06 clk: samsung: Remove support for Exynos4212 SoCs in Exynos CLKOUT driver
Support for Exynos4212 SoCs has been removed by commit bca9085e0a ("ARM:
dts: exynos: remove Exynos4212 support (dead code)"), so there is no need
to keep remaining dead code related to this SoC version.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-10-09 11:29:16 +02:00
Ondrej Jirman
7c4f63ec94 clk: sunxi-ng: a83t: Fix invalid csi-mclk mux offset
Datasheet specified that parent MUX settings are at bits [10:8],
but current implementation specifies incorrect offset at [10:12].
Fix this.

Signed-off-by: Ondrej Jirman <megous@megous.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-10-09 09:16:02 +02:00
Stephen Boyd
0a4e632b6f Merge branch 'clk-fixes' into clk-next
* clk-fixes:
  clk: samsung: exynos4: Enable VPLL and EPLL clocks for suspend/resume cycle
2017-10-05 16:52:59 -07:00
Marek Szyprowski
5dcbeca615 clk: samsung: exynos4: Enable VPLL and EPLL clocks for suspend/resume cycle
Commit 6edfa11cb3 ("clk: samsung: Add enable/disable operation for
PLL36XX clocks") added enable/disable operations to PLL clocks. Prior that
VPLL and EPPL clocks were always enabled because the enable bit was never
touched. Those clocks have to be enabled during suspend/resume cycle,
because otherwise board fails to enter sleep mode. This patch enables them
unconditionally before entering system suspend state. System restore
function will set them to the previous state saved in the register cache
done before that unconditional enable.

Fixes: 6edfa11cb3 ("clk: samsung: Add enable/disable operation for PLL36XX clocks")
CC: stable@vger.kernel.org # v4.13
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-10-04 09:19:13 -07:00
Marek Szyprowski
61a646e135 clk: samsung: Properly propagate flags in __PLL macro
All users of __PLL macro already provide flags parameter, so don't
overwrite it unconditionally with CLK_GET_RATE_NOCACHE.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-10-03 12:28:27 +02:00
Stephen Boyd
e7cc33358a Merge branch 'clk-pm-runtime' into clk-next
* clk-pm-runtime:
  clk: samsung: exynos-audss: Add support for runtime PM
  clk: samsung: exynos-audss: Use local variable for controller's device
  clk: samsung: exynos5433: Add support for runtime PM
  clk: samsung: Add support for runtime PM
  clk: Add support for runtime PM
2017-09-29 16:07:28 -07:00
Stephen Boyd
79765e9a3d Some smallish fixes for the rk3128 clock support including
some register errors and some clocks that should be critical
 for safe usage.
 -----BEGIN PGP SIGNATURE-----
 
 iQFEBAABCAAuFiEE7v+35S2Q1vLNA3Lx86Z5yZzRHYEFAlnBVUoQHGhlaWtvQHNu
 dGVjaC5kZQAKCRDzpnnJnNEdgTqVB/4p1YFdcTtegPRISCuxHxGo+82Mt4RANWnn
 S9ehHNQd2/WRTqFAdI16sjAxE+opzo9ORBEAsHnocsq7IRAokYvpHWR41d25QLdA
 dwCiwBPbNJbp8lpgir1x0d8WZ2KbeIP0KUVNvh2AHX2eRBpXcpXfpklC12v9dkVO
 JVFfPWKeiT57PKvdpaXkAdTfF/uBaCwe436jfZCy/HUTICuj9/uSYz1ssdFe1/Lj
 BuT2Gk+kSgv9b7bjTOmnDEWcloNRHi/2WrEThKQE4T2+QEMzsAhgAKNjQJyD0lWC
 WDxFMEi3b7oXuzgM7I33OwjnSDFn7BUXJ3yu1hXhCaTkAAiq4UsW
 =3tp4
 -----END PGP SIGNATURE-----

Merge tag 'v4.14-rockchip-clkfixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-fixes

Pull Rockchip clk driver fixes from Heiko Stuebner:

Some smallish fixes for the rk3128 clock support including
some register errors and some clocks that should be critical
for safe usage.

* tag 'v4.14-rockchip-clkfixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  clk: rockchip: add sclk_timer5 as critical clock on rk3128
  clk: rockchip: fix up rk3128 pvtm and mipi_24m gate regs error
  clk: rockchip: add pclk_pmu as critical clock on rk3128
2017-09-29 14:17:51 -07:00
Bjorn Andersson
9792bf5ad5 clk: Export clk_bulk_prepare()
Allow clk_bulk_prepare() to be referenced by kernel modules by adding
the missing EXPORT_SYMBOL_GPL().

Fixes: 266e4e9d91 ("clk: add clk_bulk_get accessories")
Reported-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-09-29 14:17:17 -07:00
Chen-Yu Tsai
7f3ed79188 clk: sunxi-ng: sun6i: Rename HDMI DDC clock to avoid name collision
The HDMI DDC clock found in the CCU is the parent of the actual DDC
clock within the HDMI controller. That clock is also named "hdmi-ddc".

Rename the one in the CCU to "ddc". This makes more sense than renaming
the one in the HDMI controller to something else.

Fixes: c6e6c96d8f ("clk: sunxi-ng: Add A31/A31s clocks")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-09-29 10:46:17 +02:00
Chen-Yu Tsai
80815004a4 clk: sunxi-ng: sun6i: Export video PLLs
The 2x outputs of the 2 video PLL clocks are directly used by the
HDMI controller block.

Export them so they can be referenced in the device tree.

Fixes: c6e6c96d8f ("clk: sunxi-ng: Add A31/A31s clocks")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-09-29 10:46:10 +02:00
Andrzej Pietrasiewicz
c07c1a0f68 clk: samsung: Fix m2m scaler clock on Exynos542x
The TOP "aclk400_mscl" clock should be kept enabled all the time
to allow proper access to power management control for MSC power
domain and devices that are a part of it. This change is required
for the scaler to work properly after domain power on/off sequence.

Fixes: 318fa46cc6 ("clk/samsung: exynos542x: mark some clocks as critical")
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-09-29 10:34:35 +02:00
Markus Elfring
b4021bbe10 clk: renesas: rcar-gen2: Delete error message for failed memory allocation
The script "checkpatch.pl" pointed information out like the following.

WARNING: Possible unnecessary 'out of memory' message

Thus fix affected source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-09-28 17:57:34 +02:00
Markus Elfring
168bcbcb1c clk: renesas: mstp: Delete error messages for failed memory allocations
The script "checkpatch.pl" pointed information out like the following.

WARNING: Possible unnecessary 'out of memory' message

Thus fix affected source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-09-28 17:57:34 +02:00
Markus Elfring
9edb39d750 clk: rockchip: Remove superfluous error message in rockchip_clk_register_cpuclk()
Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-09-28 15:22:50 +02:00
Markus Elfring
8834b09501 clk: samsung: Delete a memory allocation error message in clk-cpu.c
Omit an extra message for a memory allocation failure
in exynos_register_cpu_clock() function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-09-27 17:06:18 +02:00
Chen-Yu Tsai
5da672cff0 clk: sunxi-ng: Implement reset control status readback
Until now we were not providing a way to read back the status of our
reset controls. Consumers had no real way to be certain whether a
peripheral was held in reset or not.

Implement the status callback to complete the API support.

Fixes: 1d80c14248 ("clk: sunxi-ng: Add common infrastructure")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-09-26 11:13:03 +02:00
Danilo Krummrich
1d66af8190 clk: bcm2835: remove remains from stub clk driver
This commit removes the fixed clocks introduced as a stub clock driver
added with commit 75fabc3f64 ("ARM: bcm2835: add stub clock driver").
Originally they were used to drive the AMBA bus and PL011 uart driver.
Now these clocks are derived by the CPRMAN clock driver and configured
in DT.

Additionally, get rid of init_machine function in bcm2835 board file
as there's nothing to do any longer.

Signed-off-by: Danilo Krummrich <danilokrummrich@dk-develop.de>
Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
2017-09-25 11:52:24 -07:00
Sergei Shtylyov
8d46e28fb5 clk: renesas: cpg-mssr: Add R8A77970 support
Add R-Car V3M (R8A77970) Clock Pulse Generator / Module Standby and
Software Reset support, using the CPG/MSSR driver core and the common
R-Car Gen3 code.

Based on the original (and large) patch by Daisuke Matsushita
<daisuke.matsushita.ns@hitachi.com>.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-09-19 10:57:35 +02:00
Alexander Syring
a894990ac9 clk: sunxi-ng: Fix missing CLK_SET_RATE_PARENT in ccu-sun4i-a10.c
When using cpufreq-dt with default govenor other than "performance"
system freezes while booting.
Adding CLK_SET_RATE_PARENT | CLK_IS_CRITICAL to clk_cpu fixes the
problem.

Tested on Cubietruck (A20).

Fixes: c84f5683f6E ("clk: sunxi-ng: Add sun4i/sun7i CCU driver")
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Alexander Syring <alex@asyring.de>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-09-17 12:03:08 +02:00
Icenowy Zheng
70641ccad7 clk: sunxi-ng: add CLK_SET_RATE_PARENT flag to H3 GPU clock
The GPU clock on H3 has only one parent, PLL-GPU, and the PLL is only
the parent of the GPU clock. The GPU clock can be tweaked by tweaking
the PLL-GPU clock.

Add CLK_SET_RATE_PARENT flag to allow tweaking the GPU clock via
tweaking PLL-CPU.

Fixes: 0577e4853b ("clk: sunxi-ng: Add H3 clocks")
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-09-17 12:03:08 +02:00
Icenowy Zheng
62d212bdb0 clk: sunxi-ng: add CLK_SET_RATE_UNGATE to all H3 PLLs
The PLLs on H3 have a lock bit, which will only be set to 1 when the PLL
is really working.

Add CLK_SET_RATE_UNGATE to the PLLs, otherwise it will timeout when
trying to set PLL clock frequency without enabling it.

Fixes: 0577e4853b ("clk: sunxi-ng: Add H3 clocks")
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-09-17 12:03:08 +02:00
Elaine Zhang
00e6751ffc clk: rockchip: add sclk_timer5 as critical clock on rk3128
sclk_timer5 is for arm arch counter, so need always on.
but no dts node to handle this clk, so make it as critical clock

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-09-17 01:55:36 +02:00
Elaine Zhang
a4eb286565 clk: rockchip: fix up rk3128 pvtm and mipi_24m gate regs error
A copy-paste error made them use the wrong bits in the register.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-09-17 01:55:36 +02:00
Elaine Zhang
e8620acc90 clk: rockchip: add pclk_pmu as critical clock on rk3128
pclk_pmu need always on, and no dts node to handle this clk,
so make it as critical clock

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-09-17 01:55:36 +02:00
Linus Torvalds
f60a2abfdb The diff is dominated by the Allwinner A10/A20 SoCs getting converted to
the sunxi-ng framework. Otherwise, the heavy hitters are various drivers
 for SoCs like AT91, Amlogic, Renesas, and Rockchip. There are some other
 new clk drivers in here too but overall this is just a bunch of clk
 drivers for various different pieces of hardware and a collection of
 non-critical fixes for clk drivers.
 
 New Drivers:
  - Allwinner R40 SoCs
  - Renesas R-Car Gen3 USB 2.0 clock selector PHY
  - Atmel AT91 audio PLL
  - Uniphier PXs3 SoCs
  - ARC HSDK Board PLLs
  - AXS10X Board PLLs
  - STMicroelectronics STM32H743 SoCs
 
 Removed Drivers:
  - Non-compiling mb86s7x support
 
 Updates:
  - Allwinner A10/A20 SoCs converted to sunxi-ng framework
  - Allwinner H3 CPU clk fixes
  - Renesas R-Car D3 SoC
  - Renesas V2H and M3-W modules
  - Samsung Exynos5420/5422/5800 audio fixes
  - Rockchip fractional clk approximation fixes
  - Rockchip rk3126 SoC support within the rk3128 driver
  - Amlogic gxbb CEC32 and sd_emmc clks
  - Amlogic meson8b reset controller support
  - IDT VersaClock 5P49V5925/5P49V6901 support
  - Qualcomm MSM8996 SMMU clks
  - Various 'const' applications for struct clk_ops
  - si5351 PLL reset bugfix
  - Uniphier audio on LD11/LD20 and ethernet support on LD11/LD20/Pro4/PXs2
  - Assorted Tegra clk driver fixes
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABCAAGBQJZuIAQAAoJEK0CiJfG5JUlUMQQAKFwCZRfTzz0m9jJ9s1XZSR/
 vldNAEUGm+Mz0W84xIzFqaT0UI1+SJK4e9Du+EN6phcCD5yVB0JS2EtRa84Bku/i
 Zy6AYSUNbGjx94HPwIq1hKt+UOIfBiNbJKMnkoCbEyYPA/TiWzr8JR5GyLjwYhPq
 IZHSvKqUKM3h2nr+MtpFJIIk8DlkLARRca4CCqa5i2Oqj6B8rjQQAq7TaLAM3ASN
 tSFIW2vdmWD+om2L57WHhwBgaYnUB4jBCRWkFZRsO4ZIRgm4VpePmosy2UTZ7fqb
 kEaW2bPuv65zUHpvjHG6yXo+yh0yk1fBsXG/joXgJ4oOmNzsIgnCZzPnGUC1ccms
 QdK/qhdIXsdgiR2DZtYuzUHji8+TNIPPjfAFyJjUwxDBXpqzXvsvltx2a1hg/rUP
 VDvTL2OnoGtrW2bXPufCkxBsyejJ4RqC5riMJws5xgMkqKKUajiLovPeuL6+8kU+
 ncqWYiIkEvHNKpmW511G/g+ClLk89zgXfxKFWWR+iDjSvA0hgaiRj1V3C2HIyS8f
 CLpalf6ao2+O008rUiaiqJyxWuwLujcdYokay2HXvTYc45rXrVwvlaDajxqs2eer
 lekUA4ZbX2g6qvB0lna6PNlv8JLQ1XPdzhWD2eeQIi7JgVSgwg++kUJqglsuai56
 eg5zNo6891GL9zFW10/A
 =0JbT
 -----END PGP SIGNATURE-----

Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "The diff is dominated by the Allwinner A10/A20 SoCs getting converted
  to the sunxi-ng framework. Otherwise, the heavy hitters are various
  drivers for SoCs like AT91, Amlogic, Renesas, and Rockchip. There are
  some other new clk drivers in here too but overall this is just a
  bunch of clk drivers for various different pieces of hardware and a
  collection of non-critical fixes for clk drivers.

  New Drivers:
   - Allwinner R40 SoCs
   - Renesas R-Car Gen3 USB 2.0 clock selector PHY
   - Atmel AT91 audio PLL
   - Uniphier PXs3 SoCs
   - ARC HSDK Board PLLs
   - AXS10X Board PLLs
   - STMicroelectronics STM32H743 SoCs

  Removed Drivers:
   - Non-compiling mb86s7x support

  Updates:
   - Allwinner A10/A20 SoCs converted to sunxi-ng framework
   - Allwinner H3 CPU clk fixes
   - Renesas R-Car D3 SoC
   - Renesas V2H and M3-W modules
   - Samsung Exynos5420/5422/5800 audio fixes
   - Rockchip fractional clk approximation fixes
   - Rockchip rk3126 SoC support within the rk3128 driver
   - Amlogic gxbb CEC32 and sd_emmc clks
   - Amlogic meson8b reset controller support
   - IDT VersaClock 5P49V5925/5P49V6901 support
   - Qualcomm MSM8996 SMMU clks
   - Various 'const' applications for struct clk_ops
   - si5351 PLL reset bugfix
   - Uniphier audio on LD11/LD20 and ethernet support on LD11/LD20/Pro4/PXs2
   - Assorted Tegra clk driver fixes"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (120 commits)
  clk: si5351: fix PLL reset
  ASoC: atmel-classd: remove aclk clock
  ASoC: atmel-classd: remove aclk clock from DT binding
  clk: at91: clk-generated: make gclk determine audio_pll rate
  clk: at91: clk-generated: create function to find best_diff
  clk: at91: add audio pll clock drivers
  dt-bindings: clk: at91: add audio plls to the compatible list
  clk: at91: clk-generated: remove useless divisor loop
  clk: mb86s7x: Drop non-building driver
  clk: ti: check for null return in strrchr to avoid null dereferencing
  clk: Don't write error code into divider register
  clk: uniphier: add video input subsystem clock
  clk: uniphier: add audio system clock
  clk: stm32h7: Add stm32h743 clock driver
  clk: gate: expose clk_gate_ops::is_enabled
  clk: nxp: clk-lpc32xx: rename clk_gate_is_enabled()
  clk: uniphier: add PXs3 clock data
  clk: hi6220: change watchdog clock source
  clk: Kconfig: Name RK805 in Kconfig for COMMON_CLK_RK808
  clk: cs2000: Add cs2000_set_saved_rate
  ...
2017-09-13 11:04:14 -07:00
Linus Torvalds
e90937e756 ARM: arm64: Devicetree updates for v4.14
As usual, device tree updates is the bulk of our material in this merge
 window. This time around, 559 patches affecting both 32- and 64-bit
 platforms.
 
 Changes are too many to list individually, but some of the larger ones:
 
 New platform/SoC support:
 
  - Automotive:
    + Renesas R-Car D3 (R8A77995)
    + TI DT76x
    + MediaTek mt2712e
  - Communication-oriented:
    + Qualcomm IPQ8074
    + Broadcom Stingray
    + Marvell Armada 8080
  - Set top box:
    + Uniphier PXs3
 
 Besides some vendor reference boards for the SoC above, there are also several
 new boards/machines:
 
  - TI AM335x Moxa UC-8100-ME-T open platform
  - TI AM57xx Beaglebone X15 Rev C
  - Microchip/Atmel sama5d27 SoM1 EK
  - Broadcom Raspberry Pi Zero W
  - Gemini-based D-Link DIR-685 router
  - Freescale i.MX6:
    + Toradex Apalis module + Apalis and Ixora carrier boards
    + Engicam GEAM6UL Starter Kit
  - Freescale i.MX53-based Beckhoff CX9020 Embedded PC
  - Mediatek mt7623-based BananaPi R2
  - Several Allwinner-based single-board computers:
   + Cubietruck plus
   + Bananapi M3, M2M and M64
   + NanoPi A64
   + A64-OLinuXino
   + Pine64
  - Rockchip RK3328 Pine64/Rock64 board support
  - Rockchip RK3399 boards:
   + RK3399 Sapphire module on Excavator carrier (RK3399 reference design)
   + Theobroma Systems RK3399-Q7 SoM
  - ZTE ZX296718 PCBOX Board
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJZtdtjAAoJEIwa5zzehBx3PzgP/iCQyUk5wklG9E5YNl8a9m/o
 djBkelabTm52s5ZTu6Awsq5rx8jUMqcb0vo+9v9yPWFG6On2oTZyZ/rE1Wbj3+gG
 +ENVyRgxmzYDTXqQLiu1UOV9wSA0gHwQCRZvE7i32NNfLu+tAsvu9e/AuznQ1xhR
 4G7dGCRRlRkZkrVKrJ7JjklmW578pFQkZLmz8K2nWqwh1tKpK3fY19SrwUKx+YCR
 tnMPYAPjB5zxR9tfcDS4FUKdiC7dMiMzZNGiYl5a26X6wsNR7xYtNzFMaGZn1ecG
 PwOS+DAnj8J+AfpQBLWu9xytHbJdqITRuNcF+OXNVW9TKmb0syf7VgRUDkhjIMxP
 aGZc4Q6PwgTRwnX+w6fTzJTyk+uXtieCicZaaZ1jlgcQq0pfbzJ1vZMpq4aoVlxU
 mS84i1bd8AiavmHuyIRNB3/T4aAsVhTUIBndXluKV8yWroXhAukfI1YmGr1Eux7C
 fy5pPeDqk9lXR3bqIhfnaLoVsApEXTOWMC8X48vwfaQHiCGR9JJwpfsGcaNi1bri
 Col1qRzkXWGA6KqTWtpo+o12rYuMGc0mpZTCmejKuBoxMXOU+wLyJYgaxa7pyesX
 S5rLaIe2l9ppXHjjEERp7AzczzLS5W20Tez5vYnZAQb1dYuJzwXwiATt8NT+XG3V
 Wu92UwUfjxYk8vGz48ph
 =R45j
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-devicetree' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM/arm64 Devicetree updates from Olof Johansson:
 "As usual, device tree updates is the bulk of our material in this
  merge window. This time around, 559 patches affecting both 32- and
  64-bit platforms.

  Changes are too many to list individually, but some of the larger
  ones:

  New platform/SoC support:

   - Automotive:
     + Renesas R-Car D3 (R8A77995)
     + TI DT76x
     + MediaTek mt2712e
   - Communication-oriented:
     + Qualcomm IPQ8074
     + Broadcom Stingray
     + Marvell Armada 8080
   - Set top box:
     + Uniphier PXs3

  Besides some vendor reference boards for the SoC above, there are also
  several new boards/machines:

   - TI AM335x Moxa UC-8100-ME-T open platform
   - TI AM57xx Beaglebone X15 Rev C
   - Microchip/Atmel sama5d27 SoM1 EK
   - Broadcom Raspberry Pi Zero W
   - Gemini-based D-Link DIR-685 router
   - Freescale i.MX6:
     + Toradex Apalis module + Apalis and Ixora carrier boards
     + Engicam GEAM6UL Starter Kit
   - Freescale i.MX53-based Beckhoff CX9020 Embedded PC
   - Mediatek mt7623-based BananaPi R2
   - Several Allwinner-based single-board computers:
  + Cubietruck plus
  + Bananapi M3, M2M and M64
  + NanoPi A64
  + A64-OLinuXino
  + Pine64
   - Rockchip RK3328 Pine64/Rock64 board support
   - Rockchip RK3399 boards:
  + RK3399 Sapphire module on Excavator carrier (RK3399 reference design)
  + Theobroma Systems RK3399-Q7 SoM
   - ZTE ZX296718 PCBOX Board"

* tag 'armsoc-devicetree' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (559 commits)
  ARM: dts: at91: at91sam9g45: add AC97
  arm64: dts: marvell: mcbin: enable more networking ports
  arm64: dts: marvell: add a reference to the sysctrl syscon in the ppv2 node
  arm64: dts: marvell: add TX interrupts for PPv2.2
  arm64: dts: uniphier: add PXs3 SoC support
  ARM: dts: uniphier: add pinctrl groups of ethernet phy mode
  ARM: dts: uniphier: fix size of sdctrl nodes
  ARM: dts: uniphier: add AIDET nodes
  arm64: dts: uniphier: fix size of sdctrl node
  arm64: dts: uniphier: add AIDET nodes
  Revert "ARM: dts: sun8i: h3: Enable dwmac-sun8i on the Beelink X2"
  arm64: dts: uniphier: add reset controller node of analog amplifier
  arm64: dts: marvell: add Device Tree files for Armada-8KP
  arm64: dts: rockchip: add Haikou baseboard with RK3399-Q7 SoM
  arm64: dts: rockchip: add RK3399-Q7 (Puma) SoM
  dt-bindings: add rk3399-q7 SoM
  ARM: dts: rockchip: enable usb for rv1108-evb
  ARM: dts: rockchip: add usb nodes for rv1108 SoCs
  dt-bindings: update grf-binding for rv1108 SoCs
  ARM: dts: aspeed-g4: fix AHB window size of the SMC controllers
  ...
2017-09-10 20:54:48 -07:00
Marek Szyprowski
ae432a9b31 clk: samsung: exynos-audss: Add support for runtime PM
This patch adds support for runtime PM to Exynos Audio SubSystem driver to
enable full support for audio power domain on Exynos5 SoCs. The main change
is moving register saving and restoring code from system sleep PM ops to
runtime PM ops and implementing system sleep PM ops with generic
pm_runtime_force_suspend/resume helpers. Runtime PM of the Exynos AudSS
device is managed from clock core depending on the preparation status
of the provided clocks.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1503302703-13801-6-git-send-email-m.szyprowski@samsung.com
2017-09-07 15:26:01 -07:00
Marek Szyprowski
232d7e4792 clk: samsung: exynos-audss: Use local variable for controller's device
Store pointer to the controller's device in local variable to avoid
extracting it from platform device in each call. This will also simplify
code in the future, when runtime PM support is added.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1503302703-13801-5-git-send-email-m.szyprowski@samsung.com
2017-09-07 15:25:57 -07:00
Marek Szyprowski
523d3de41f clk: samsung: exynos5433: Add support for runtime PM
Add runtime pm support for all clock controller units (CMU), which belong
to power domains and require special handling during on/off operations.
Typically special values has to be written to MUX registers to change
internal clocks parents to OSC clock before turning power off. During such
operation all clocks, which enter CMU has to be enabled to let MUX to
stabilize. Also for each CMU there is one special parent clock, which has
to be enabled all the time when any access to CMU registers is being done.

This patch solves most of the mysterious external abort and freeze issues
caused by a lack of proper parent CMU clock enabled or incorrect turn off
procedure.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1503302703-13801-4-git-send-email-m.szyprowski@samsung.com
2017-09-07 15:25:52 -07:00
Marek Szyprowski
d2f18d7e20 clk: samsung: Add support for runtime PM
This patch adds struct device pointer to samsung_clk_provider and forwarding it
to clk_register_* functions, so drivers can register clocks, which use runtime
pm feature.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1503302703-13801-3-git-send-email-m.szyprowski@samsung.com
2017-09-07 15:25:46 -07:00
Marek Szyprowski
9a34b45397 clk: Add support for runtime PM
Registers for some clocks might be located in the SOC area, which are under the
power domain. To enable access to those registers respective domain has to be
turned on. Additionally, registers for such clocks will usually loose its
contents when power domain is turned off, so additional saving and restoring of
them might be needed in the clock controller driver.

This patch adds basic infrastructure in the clocks core to allow implementing
driver for such clocks under power domains. Clock provider can supply a
struct device pointer, which is the used by clock core for tracking and managing
clock's controller runtime pm state. Each clk_prepare() operation
will first call pm_runtime_get_sync() on the supplied device, while
clk_unprepare() will do pm_runtime_put_sync() at the end.

Additional calls to pm_runtime_get/put functions are required to ensure that any
register access (like calculating/changing clock rates and unpreparing/disabling
unused clocks on boot) will be done with clock controller in runtime resumend
state.

When one wants to register clock controller, which make use of this feature, he
has to:
1. Provide a struct device to the core when registering the provider.
2. Ensure to enable runtime PM for that device before registering clocks.
3. Make sure that the runtime PM status of the controller device reflects
   the HW state.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/1503302703-13801-2-git-send-email-m.szyprowski@samsung.com
2017-09-07 15:25:13 -07:00
Russell King
73c950da6e clk: si5351: fix PLL reset
Changing the audio sample rate on the SolidRun Cubox disrupts the video
output.  The Si5351 provides both the video clock (using PLLA on output
0) and the audio clock (using PLLB on output 2).

When the rate of clock output 2 is changed, it reconfigures PLLB, which
results in both PLLA and PLLB being reset.  The reset of PLLA causes
clock output 0 to be disrupted, thereby causing a loss of sync by the
attached display device.

Hence, each time the audio sample rate changes (eg, when a video player
starts up, or when starting to play music) the video display momentarily
blanks while the Si5351 settles down.  Prior to the commit below, this
behaviour did not happen.

Fix this by only resetting only the PLL which has been changed.

Fixes: 6dc669a22c ("clk: si5351: Add PLL soft reset")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-09-01 16:00:54 -07:00
Quentin Schulz
1a1a36d72e clk: at91: clk-generated: make gclk determine audio_pll rate
This allows gclk to determine audio_pll rate and set the parent rate
accordingly.

However, there are multiple children clocks that could technically
change the rate of audio_pll (via gck). With the rate locking, the first
consumer to enable the clock will be the one definitely setting the rate
of the clock.

Since audio IPs are most likely to request the same rate, we enforce
that the only clks able to modify gck rate are those of audio IPs.

To remain consistent, we deny other clocks to be children of audio_pll.

Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-09-01 15:46:54 -07:00
Quentin Schulz
8a8f4bf0c4 clk: at91: clk-generated: create function to find best_diff
The way to find the best_diff and do the appropriate process afterwards
can be re-used.

This patch prepares the driver for an upcoming patch that will allow
clk_generated to determine the rate of the audio_pll.

Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-09-01 15:46:53 -07:00
Quentin Schulz
0865805d82 clk: at91: add audio pll clock drivers
This new clock driver set allows to have a fractional divided clock that
would generate a precise clock particularly suitable for audio
applications.

The main audio pll clock has two children clocks: one that is connected
to the PMC, the other that can directly drive a pad. As these two routes
have different enable bits and different dividers and divider formulas,
they are handled by two different drivers. Each of them could modify the
rate of the main audio pll parent.

The main audio pll clock can output 620MHz to 700MHz.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-09-01 15:46:52 -07:00
Quentin Schulz
8c7aa63289 clk: at91: clk-generated: remove useless divisor loop
The driver requests the current clk rate of each of its parent clocks to
decide whether a clock rate is suitable or not. It does not request
determine_rate from a parent clock which could request a rate change in
parent clock (i.e. there is no parent rate propagation).

We know the rate we want (passed along req argument of the function) and
the parent clock rate, thus we know the closest rounded divisor, we
don't need to iterate over the available divisors to find the best one
for a given clock.

Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-09-01 15:46:48 -07:00
Andreas Färber
8bb48f79ea clk: mb86s7x: Drop non-building driver
It fails to build once we introduce the ARCH_MB86S7X Kconfig symbol:

  drivers/clk/clk-mb86s7x.c:27:10: fatal error: soc/mb86s7x/scb_mhu.h: No such file or directory
   #include <soc/mb86s7x/scb_mhu.h>
            ^~~~~~~~~~~~~~~~~~~~~~~
  compilation terminated.

And when commenting out that line, we get:

  drivers/clk/clk-mb86s7x.c: In function 'crg_gate_control':
  drivers/clk/clk-mb86s7x.c:72:8: error: implicit declaration of function 'mb86s7x_send_packet' [-Werror=implicit-function-declaration]
    ret = mb86s7x_send_packet(CMD_PERI_CLOCK_GATE_SET_REQ,
          ^~~~~~~~~~~~~~~~~~~
  drivers/clk/clk-mb86s7x.c:72:28: error: 'CMD_PERI_CLOCK_GATE_SET_REQ' undeclared (first use in this function)
    ret = mb86s7x_send_packet(CMD_PERI_CLOCK_GATE_SET_REQ,
                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~
  drivers/clk/clk-mb86s7x.c:72:28: note: each undeclared identifier is reported only once for each function it appears in
  drivers/clk/clk-mb86s7x.c: In function 'crg_rate_control':
  drivers/clk/clk-mb86s7x.c:116:10: error: 'CMD_PERI_CLOCK_RATE_SET_REQ' undeclared (first use in this function)
     code = CMD_PERI_CLOCK_RATE_SET_REQ;
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~
  drivers/clk/clk-mb86s7x.c:121:10: error: 'CMD_PERI_CLOCK_RATE_GET_REQ' undeclared (first use in this function); did you mean 'CMD_PERI_CLOCK_RATE_SET_REQ'?
     code = CMD_PERI_CLOCK_RATE_GET_REQ;
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~
            CMD_PERI_CLOCK_RATE_SET_REQ
  drivers/clk/clk-mb86s7x.c: In function 'mhu_cluster_rate':
  drivers/clk/clk-mb86s7x.c:276:10: error: 'CMD_CPU_CLOCK_RATE_GET_REQ' undeclared (first use in this function)
     code = CMD_CPU_CLOCK_RATE_GET_REQ;
            ^~~~~~~~~~~~~~~~~~~~~~~~~~
  drivers/clk/clk-mb86s7x.c:278:10: error: 'CMD_CPU_CLOCK_RATE_SET_REQ' undeclared (first use in this function); did you mean 'CMD_CPU_CLOCK_RATE_GET_REQ'?
     code = CMD_CPU_CLOCK_RATE_SET_REQ;
            ^~~~~~~~~~~~~~~~~~~~~~~~~~
            CMD_CPU_CLOCK_RATE_GET_REQ
  cc1: some warnings being treated as errors
  scripts/Makefile.build:302: recipe for target
  'drivers/clk/clk-mb86s7x.o' failed
  make[2]: *** [drivers/clk/clk-mb86s7x.o] Error 1

Remove the driver for now.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-09-01 13:31:24 -07:00
Colin Ian King
df2f845167 clk: ti: check for null return in strrchr to avoid null dereferencing
strrchr can potentially return a null so the following strlen on the
null pointer can cause a null dereference. Add a check to see if
the string postfix is not null before calling strlen.

Detected by CoverityScan, CID#1452039 ("Dereference null return")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-31 18:44:13 -07:00
Alex Frid
2316a7a334 clk: Don't write error code into divider register
Add a check for error returned by divider value calculation to avoid
writing error code into hw register.

Signed-off-by: Alex Frid <afrid@nvidia.com>
Reviewed-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
Fixes: bca9690b94 ("clk: divider: Make generic for usage elsewhere")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-31 18:43:38 -07:00
Katsuhiro Suzuki
6c264416c9 clk: uniphier: add video input subsystem clock
Add a clock for video input subsystem (EXIV) on
UniPhier LD11/LD20 SoCs.

Signed-off-by: Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-31 18:41:14 -07:00
Katsuhiro Suzuki
e3dd205860 clk: uniphier: add audio system clock
Add clock for audio subsystem (AIO) and SoC internal audio codec
(EVEA) on UniPhier LD11/LD20 SoCs.

Signed-off-by: Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-31 18:40:23 -07:00
Gabriel Fernandez
3e4d618b07 clk: stm32h7: Add stm32h743 clock driver
This patch enables clocks for STM32H743 boards.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>

for MFD changes:
Acked-by: Lee Jones <lee.jones@linaro.org>

for DT-Bindings
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-31 18:35:47 -07:00
Gabriel Fernandez
0a9c869d5c clk: gate: expose clk_gate_ops::is_enabled
This patch exposes clk_gate_ops::is_enabled as functions
that can be directly called and assigned in places like this so
we don't need wrapper functions that do nothing besides forward
the call.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-31 18:35:45 -07:00
Gabriel Fernandez
42d3c5f634 clk: nxp: clk-lpc32xx: rename clk_gate_is_enabled()
We need to export clk_gate_is_enabled() from clk framework, then
to avoid compilation issue we have to rename clk_gate_is_enabled()
in NXP LPC32xx clock driver.
We changed all gate op with 'lpc32xx_' prefix:
lpc32xx_clk_gate_enable(),
lpc32xx_clk_gate_disable(),
lpc32xx_clk_gate_is_enabled().

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Acked-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-31 18:35:44 -07:00
Masahiro Yamada
736de651a8 clk: uniphier: add PXs3 clock data
Add basic clock data for Socionext's new SoC PXs3.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-31 18:34:35 -07:00
Leo Yan
9fa7231b19 clk: hi6220: change watchdog clock source
The old code uses tcxo (19.2MHz) as watchdog clock but actually the
watchdog uses 32K clock, as result the watchdog timeout cannot be set
correctly and delay long time to reset SoC.

So this patch is to use 'ref32k' as clock source for watchdog.

Fixes: 72ea48610d ("clk: hi6220: Clock driver support for Hisilicon hi6220 SoC")
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-31 18:32:43 -07:00
Elaine Zhang
65bc9d7ff2 clk: Kconfig: Name RK805 in Kconfig for COMMON_CLK_RK808
The RK808 and RK805 PMICs are using a similar register map.
We can reuse the clk driver for the RK805 PMIC. So let's add
the RK805 in the Kconfig description.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-31 16:20:12 -07:00
Gaku Inami
e001525c4b clk: cs2000: Add cs2000_set_saved_rate
This patch adds the common function to reset the clk rate in order to
be able to use it in other cases.

Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com>
Signed-off-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-31 11:32:32 -07:00
Lucas Stach
fa0abb18d9 clk: imx51: propagate rate across ipu_di*_sel
This propagates rate requests from the display interface to the divider
or PLL output, allowing to hit the required display rate in many more
cases.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Tested-By: Wladimir J. van der Laan <laanwj@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-31 11:30:47 -07:00
Stephen Boyd
056db9d7c4 Allwinner clock changes for 4.14, part 3
Conversion of the last two SoCs (A10, A20) to the sunxi-ng framework.
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJZno1VAAoJEBx+YmzsjxAgJ4gQALqulaGhH4rEjW5oouZ8JJwd
 O3s4FFazKMXlgV1q/LYbf1eYrUQhJbr4tHTbCbqm3klaMTz6jOAnRlTjSKkoIssA
 jrtbP6MzHcWE6RnaIA96z45T2p5ZyMGt18/ZgpdQlmmQ9GcV27I+gQs0VsLLPMY0
 PGlG+r6qDnwHbCaEymvbLG16/xLVXHmqXrWQ/9GRWRK1fQ7ffgGw80X1ASuflSnE
 fJCqfhUc1SG3ZGho0xZXFKUvifoaHg1gyFQrrP5mVhYSeUogYSMrvQim/RwwxSVx
 6GkHmNj6O15UvD2A7Y71VqjvjNi5gB054J18Nl8PxFJyHPa33ocC5DkbOXEJI6jL
 PESH29A6myS+v2cY6lm1PVdWIGrDNcCgocjsZSeyn4xKU6oPmFHzlISt0hZPPoQ3
 lxqWZrH9rUeVLVAkX2XzMhi4xHc6wZF2eTsp+e0ylDL09c//Dt2ojKgWoN7DeUlN
 sRgjcPlGB5KRYMYi1ChH5RSsH8h8S4wzF2mSESkGjLCZ82r1BerRBjvaF1MaIEGd
 xm5yNBw4Y3HL+AoRSEZiZ9FjERfejiI3Q/oqgcLdAGiYD0pDWMU+wjrfHXnQ1yOj
 HITZaabZRf19D+pNdLpMlzp1UmQQbflCDfOnXaz1r1q6yuWdXvXmgIL2CfQGPqCD
 Yn+FyX0JEE6yq4lvJ4fA
 =Wce+
 -----END PGP SIGNATURE-----

Merge tag 'sunxi-clk-for-4.14-3' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-next

Pull more Allwinner clock changes from Maxime Ripard:

 * Conversion of the last two SoCs (A10, A20) to the sunxi-ng framework

* tag 'sunxi-clk-for-4.14-3' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: Add sun4i/sun7i CCU driver
  dt-bindings: List devicetree binding for the CCU of Allwinner A10
  dt-bindings: List devicetree binding for the CCU of Allwinner A20
2017-08-31 10:57:34 -07:00
Arnd Bergmann
4e903450bc clk: sunxi: fix uninitialized access
gcc-8 reports an uninitialized variable access in a code path
that we would see with incorrect DTB input:

drivers/clk/sunxi/clk-sun8i-bus-gates.c: In function 'sun8i_h3_bus_gates_init':
drivers/clk/sunxi/clk-sun8i-bus-gates.c:85:27: error: 'clk_parent' may be used uninitialized in this function [-Werror=maybe-uninitialized]

This works around by skipping invalid input and printing a warning
instead if it ever happens. The problem was apparently part of the
initiali driver submission, but older compilers don't notice it.

Fixes: ab6e23a4e3 ("clk: sunxi: Add H3 clocks support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-30 22:39:49 -07:00
Bhumika Goyal
2c606871f3 clk: versatile: make clk_ops const
Make this const as it is only stored in the const field of a
clk_init_data structure.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-30 22:38:59 -07:00
Eugeniy Paltsev
daeeb438c0 ARC: clk: introduce HSDK pll driver
HSDK board manages its clocks using various PLLs. These PLL have same
dividers and corresponding control registers mapped to different addresses.
So we add one common driver for such PLLs.

Each PLL on HSDK board consists of three dividers: IDIV, FBDIV and
ODIV. Output clock value is managed using these dividers.

We add pre-defined tables with supported rate values and appropriate
configurations of IDIV, FBDIV and ODIV for each value.

As of today we add support for PLLs that generate clock for the
HSDK arc cpus, system, ddr, AXI tunnel and hdmi.

By this patch we add support for several plls (arc cpus pll and others),
so we had to use two different init types: CLK_OF_DECLARE for arc cpus pll
and regular probing for others plls.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Reviewed-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-30 22:36:05 -07:00
Arvind Yadav
59273246b2 clk: zte: constify clk_div_table
clk_div_table are not supposed to change at runtime. All functions
working with clk_div_table provided by <linux/clk-provider.h> work
with const clk_div_table. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-30 22:30:30 -07:00
Arvind Yadav
fdda6ee947 clk: imx: constify clk_div_table
clk_div_table are not supposed to change at runtime. All functions
working with clk_div_table provided by <linux/clk-provider.h> work
with const clk_div_table. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-30 22:30:27 -07:00
Kunihiko Hayashi
9959989fc4 clk: uniphier: add ethernet clock control support
Add clock control for ethernet controller on Pro4, PXs2, LD11 and LD20.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-30 22:29:29 -07:00
Linus Walleij
2839b1efeb clk: gemini: hands off PCI OE bit
This bit is pin control, and needs to be carefully managed by the
new pin control driver.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-30 22:29:11 -07:00
Arvind Yadav
56d8777641 clk: ux500: prcc: constify clk_ops.
clk_ops are not supposed to change at runtime. All functions
working with clk_ops provided by <linux/clk-provider.h> work
with const clk_ops. So mark the non-const clk_ops as const.

Here, Function "clk_reg_prcc" is used to initialized clk_init_data.
clk_init_data is working with const clk_ops. So make clk_reg_prcc
non-const clk_ops argument as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-30 22:27:49 -07:00
Arvind Yadav
ca2ea4b036 clk: ux500: sysctrl: constify clk_ops.
clk_ops are not supposed to change at runtime. All functions
working with clk_ops provided by <linux/clk-provider.h> work
with const clk_ops. So mark the non-const clk_ops as const.

Here, Function "clk_reg_sysctrl" is used to initialized clk_init_data.
clk_init_data is working with const clk_ops. So make clk_reg_sysctrl
non-const clk_ops argument as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-30 22:27:23 -07:00
Arvind Yadav
df4f45a00b clk: ux500: prcmu: constify clk_ops.
clk_ops are not supposed to change at runtime. All functions
working with clk_ops provided by <linux/clk-provider.h> work
with const clk_ops. So mark the non-const clk_ops as const.

Here, Function "clk_reg_prcmu" is used to initialized clk_init_data.
clk_init_data is working with const clk_ops. So make clk_reg_prcmu
non-const clk_ops argument as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-30 22:27:00 -07:00
Maxime Ripard
734d21ccdc clk: sunxi-ng: Provide a default reset hook
The reset hook was left implemented. Provide a dumb implementation so that
client drivers can depend on it.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-08-30 15:03:52 +02:00
Chen-Yu Tsai
81e911d0dc clk: sunxi-ng: a83t: Support new timing mode for mmc2 clock
The MMC2 clock supports a new timing mode. When the new mode is active,
the output clock rate is halved.

This patch sets the feature flag for the new timing mode, and adds
a pre-divider based on the mode bit.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-08-30 14:01:48 +02:00
Chen-Yu Tsai
dc8797e39f clk: sunxi-ng: Add MP_MMC clocks that support MMC timing modes switching
All of our MMC clocks are of the MP clock type. A few MMC clocks on some
SoCs, such as MMC2 on the A83T, support new/old timing mode switching.

>From a clock rate point of view, when the new timing mode is active. the
output clock rate is halved.

This patch adds a special wrapper class of clocks, MP_MMC, around the
generic MP type clocks. The rate related callbacks in ccu_mp_mmc_ops
for this class look at the timing mode bit and apply the /2 post-divider
when needed, before passing it through to the generic class ops,
ccu_mp_ops.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-08-30 14:01:47 +02:00
Chen-Yu Tsai
f6f64ed868 clk: sunxi-ng: Add interface to query or configure MMC timing modes.
Starting with the A83T SoC, Allwinner introduced a new timing mode for
its MMC clocks. The new mode changes how the MMC controller sample and
output clocks are delayed to match chip and board specifics. There are
two controls for this, one on the CCU side controlling how the clocks
behave, and one in the MMC controller controlling what inputs to take
and how to route them.

In the old mode, the MMC clock had 2 child clocks providing the output
and sample clocks, which could be delayed by a number of clock cycles
measured from the MMC clock's parent.

With the new mode, the 2 delay clocks are no longer active. Instead,
the delays and associated controls are moved into the MMC controller.
The output of the MMC clock is also halved.

The difference in how things are wired between the modes means that the
clock controls and the MMC controls must match. To achieve this in a
clear, explicit way, we introduce two functions for the MMC driver to
use: one queries the hardware for the current mode set, and the other
allows the MMC driver to request a mode.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-08-30 14:01:47 +02:00
Priit Laes
c84f5683f6 clk: sunxi-ng: Add sun4i/sun7i CCU driver
Introduce a clock controller driver for sun4i A10 and sun7i A20
series SoCs.

Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-08-24 10:15:54 +02:00
Srinivas Kandagatla
69a6beab08 clk: msm8996-gcc: add missing smmu clks
This patch adds missing LPASS smmu clks which are required by the audio driver.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 16:07:18 -07:00
Alex Frid
7157c69a99 clk: tegra: Fix Tegra210 PLLU initialization
- Added necessary delays in PLLU enable sequence during initialization
- Applied PLLU lock to all secondary gates (PLLU_48M and PLLU_60M were
missing).

Signed-off-by: Alex Frid <afrid@nvidia.com>
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 16:00:42 -07:00
Alex Frid
71422dbb89 clk: tegra: Correct Tegra210 UTMIPLL poweron delay
Increased Tegra210 UTMIPLL power on delay to 20us (spec maximum is 15us).
Also remove a few empty lines to make it more clear the ACTIVE_DLY_COUNT
and ENABLE_DLY_COUNT fields.

Signed-off-by: Alex Frid <afrid@nvidia.com>
Reviewed-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 16:00:33 -07:00
Alex Frid
2f924ac33f clk: tegra: Fix T210 PLLRE registration
Switched Tegra210 PLLRE registration to common PLL ops instead of special
PLLRE ops used on previous Tegra chips. The latter ops do not follow
chip specific PLL frequency table, and do not apply chip specific rate
calculation method.

Removed unnecessary default rate setting that duplicates h/w reset
state, and is overwritten by clock initialization, anyway.

Signed-off-by: Alex Frid <afrid@nvidia.com>
Reviewed-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 16:00:23 -07:00
Alex Frid
f7bdb8b78a clk: tegra: Update T210 PLLSS (D2/DP) registration
Remove from Tegra210 PLLSS registration code sections that
- attempt to set PLL minimum rate (unnecessary, and dangerous if PLL
  is already enabled on boot)
- apply pre-Tegra210 defaults settings
- check IDDQ setting (duplicated with Tegra210 PLLSS check defaults)

Replaced setting of reference clock with check that default oscillator
selection is not changed, and failed registration otherwise as validation
was only done with the oscillator as the reference clock.

Reordered registration, so that PLL initialization is called after
VCOmin adjustment.

Signed-off-by: Alex Frid <afrid@nvidia.com>
Reviewed-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 16:00:12 -07:00
Alex Frid
ac99afe55a clk: tegra: Re-factor T210 PLLX registration
Tegra210 PLLX uses the same sequences than then PLLC instances. So there
is no need to have a special registration function and ops struct for it.
Simplify the code by changing all references to the Tegra210 PLLX
registration function to the Tegra210 PLLC registration function and
avoid duplicate functionality.

Based on work by Alex Frid <afrid@nvidia.com>

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 15:59:59 -07:00
Peter De Schrijver
1934ffd08d clk: tegra: don't warn for pll_d2 defaults unnecessarily
If the PLL is on, only warn if the defaults are not yet set. Otherwise be
silent.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Timo Alho <talho@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 15:59:50 -07:00
Peter De Schrijver
3dd065e70e clk: tegra: change post IDDQ release delay to 5us
Increase delay after PLL IDDQ release to 5us per PLL specifications.

based on work by Alex Frid <afrid@nvidia.com>

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 15:59:42 -07:00
Alex Frid
82c875ca2b clk: tegra: Add TEGRA_PERIPH_ON_APB flag to I2C
I2C controllers are also on the APB bus and therefor need this flag to handle
resets correctly.

Signed-off-by: Alex Frid <afrid@nvidia.com>
Reviewed-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 15:59:33 -07:00
Alex Frid
a851ea2b9e clk: tegra: Fix T210 effective NDIV calculation
Don't take the fractional part into account to calculate the effective
NDIV if fractional ndiv is not enabled.

Signed-off-by: Alex Frid <afrid@nvidia.com>
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 15:59:24 -07:00
Peter De Schrijver
bc7b34a2fb clk: tegra: Init cfg structure in _get_pll_mnp
Not all fields are read from the hw depending on the PLL type. Make sure
the other fields are 0 by clearing the structure beforehand to prevent
users such as the rate re-calculation code from using bogus values.

Based on work by  Alex Frid <afrid@nvidia.com>

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 15:59:15 -07:00
Peter De Schrijver
e34e69cc86 clk: tegra210: remove non-existing VFIR clock
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 15:59:06 -07:00
Peter De Schrijver
030999fe51 clk: tegra: disable SSC for PLL_D2
PLLD2 is used for HDMI which does not allow Spread Spectrum clocking.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 15:58:56 -07:00
Peter De Schrijver
04434cfa2b clk: tegra: Enable PLL_SS for Tegra210
Make sure the pll_ss ops are compiled even when only building for Tegra210.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Shreshtha Sahu <ssahu@nvidia.com>
Tested-by: Shreshtha Sahu <ssahu@nvidia.com>
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 15:57:06 -07:00
Peter De Schrijver
1a7da87727 clk: tegra: fix SS control on PLL enable/disable
PLL SS was only controlled when setting the PLL rate, not when the PLL itself
is enabled or disabled.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 15:56:53 -07:00
Georgi Djakov
de2245540e clk: qcom: msm8916: Fix bimc gpu clock ops
The clock bimc_gpu_clk_src is incorrectly set to use the shared rcg2
ops, which are for RCGs with child branches controlled by different
CPUs.

The result of the incorrect ops is that the GPU's PM runtime may leave
this clock set at a very low rate. Fix this issue by using the correct
rcg2 ops.

Fixes: a2e8272f3f ("clk: qcom: Add MSM8916 gpu clocks")
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 15:55:46 -07:00
Bhumika Goyal
7cc566a821 clk: ti: make clk_ops const
Make these const as they are only stored in the const field of a
clk_init_data structure.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 15:53:25 -07:00
Stephen Boyd
535b1100d1 clk: renesas: Updates for v4.14
- Add more module clocks for R-Car V2H and M3-W,
   - Add support for the R-Car Gen3 USB 2.0 clock selector PHY,
   - Add support for the new R-Car D3 SoC,
   - Allow compile-testing of all (sub)drivers now all dummy infrastructure
     is available,
   - Small fixes and cleanups.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJZlVHhAAoJEEgEtLw/Ve77wqwP/1/RgfVlAoAHDL+aIo5FacVk
 uL5XPembCm7lCB+9OIU7GIrZQbZGWFBRUfL4oqOSfxqsTLv9gAKyZNUBETOKijXo
 NW0m6gkpN2+AZvZlTsZUzYLgdakNdOXi5atYn41zvAy2wbtww2aUqUHvwHz2PKjz
 k4ucRJEjljVGzTMu5/yqaADioEnTnb9FZ+uRGiy0/W+sD4UoEum75Ay6u3t7s0bL
 cmA2rtCFg52GlvC+BsZHntAjTHlSFXn7W8LddP1sb0oVvc9spC3k8q4DR8zVGNU2
 VCk6XKyOnWTpHjyw/IYBAjQ+nNainklLyIusnEnG0VyUZY0pvFcC/SOAHxO4NSBS
 AJqD7ylhkc6gnYL0lqp+n6RJaoY4GOhpSFz+NNtPXFXaDUfuf+WTiYzHnrrCCZ4z
 jTGcmiynl229jAxN5fYudjfnbydBfvdKGINtVRI7ApP+oZa5K0Wzbd4ZDx4Q2mML
 90mCdy+BVFGUcosh91kpL9vKazEm8EBYArMVhRDTFog6c4VyUrzL77fWleoptc4M
 yWlWB/KwfAhr0/NM1cxguax9bG1eOJbwq5FxHGwUqUCjxUxUWItNM9E1RMJ89drm
 zIsRO3CseOVFJcsm/75owYc/vXNbWcZ09wHyt8RExygPUPxRj3iCCvI5Y+tDqDIG
 zb2H5/e0HI7PjHt+hLEW
 =77l6
 -----END PGP SIGNATURE-----

Merge tag 'clk-renesas-for-v4.14-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next

Pull Renesas clk driver updates from Geert Uytterhoeven:

  * Add more module clocks for R-Car V2H and M3-W,
  * Add support for the R-Car Gen3 USB 2.0 clock selector PHY,
  * Add support for the new R-Car D3 SoC,
  * Allow compile-testing of all (sub)drivers now all dummy infrastructure
    is available,
  * Small fixes and cleanups.

* tag 'clk-renesas-for-v4.14-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers:
  clk: renesas: r8a7796: Add USB3.0 clock
  clk: renesas: rcar-usb2-clock-sel: Add R-Car USB 2.0 clock selector PHY
  clk: renesas: cpg-mssr: Add R8A77995 support
  clk: renesas: rcar-gen3: Add support for SCCG/Clean peripheral clocks
  clk: renesas: rcar-gen3: Add divider support for PLL1 and PLL3
  clk: renesas: Add r8a77995 CPG Core Clock Definitions
  clk: renesas: rcar-gen3-cpg: Refactor checks for accessing the div table
  clk: renesas: rcar-gen3-cpg: Drop superfluous variable
  clk: renesas: Allow compile-testing of all (sub)drivers
  clk: renesas: r8a7792: Add IMR-LX3/LSX3 clocks
  clk: renesas: div6: Document fields used for parent selection
2017-08-23 15:39:58 -07:00
Stephen Boyd
1dfcfa721f clk: rockchip: Mark rockchip_fractional_approximation static
Silence the sparse warning

clk/rockchip/clk.c:172:6: warning: symbol 'rockchip_fractional_approximation' was not declared. Should it be static?

Cc: Elaine Zhang <zhangqing@rock-chips.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-23 15:35:41 -07:00
Stephen Boyd
cf657bb940 The biggest change is fixing the jitter on the fractional clock-type
Rockchip socs experience with the default approximation. For that we
 introduce the ability to override it with a clock-specific approximation
 and use that to create the needed rate settings as described in the
 Rockchip soc manuals (same for all Rockchip socs).
 
 Apart from that we have support for the rk3126 clock controller
 which is similar to the rk3128 with some minimal differences
 and a lot of improvements and fixes for the rv1108 clock controller
 (missing clocks, some clock-ids, naming fixes, register fixes).
 -----BEGIN PGP SIGNATURE-----
 
 iQFEBAABCAAuFiEE7v+35S2Q1vLNA3Lx86Z5yZzRHYEFAlmcl8sQHGhlaWtvQHNu
 dGVjaC5kZQAKCRDzpnnJnNEdgeiBB/wIf5LHDu09HuOb1bjtYASMc//ve2ymhpd7
 QsccJ0nteJTWnYQlrJUPYN8YhRVqPNrz7Fq8PkMMkzm89fQQ6lr5DxOy6olKTPM4
 sGf+242eE3XttHjJxcshNPS98A56zBa9OgNC9sUsTex8r7NaJn+Gvlf0sXEgQRQi
 5FprJf49/4rlHZypVMg1j+aMEWM8ZAmXLP3F77Qch+rfxE74POV9/HI7EEoSQ9MX
 TxwEewmM8IGXY9aVTvtADPmX31CgdOD3qm4giwGkBf2F8SajP8R63wi+BYpNfUTX
 +TrexLXEfeKEVtU+xPXsNYmEnAOW6sRvfyUnq4oA1hVSnFoexFA1
 =Upwy
 -----END PGP SIGNATURE-----

Merge tag 'v4.14-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next

Pull Rockchip clk driver updates from Heiko Stuebner:

The biggest change is fixing the jitter on the fractional clock-type
Rockchip socs experience with the default approximation. For that we
introduce the ability to override it with a clock-specific approximation
and use that to create the needed rate settings as described in the
Rockchip soc manuals (same for all Rockchip socs).

Apart from that we have support for the rk3126 clock controller
which is similar to the rk3128 with some minimal differences
and a lot of improvements and fixes for the rv1108 clock controller
(missing clocks, some clock-ids, naming fixes, register fixes).

* tag 'v4.14-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  clk: rockchip: fix the rv1108 clk_mac sel register description
  clk: rockchip: rename rv1108 macphy clock to mac
  clk: rockchip: add rv1108 ACLK_GMAC and PCLK_GMAC clocks
  clk: rockchip: add rk3228 SCLK_SDIO_SRC clk id
  clk: rockchip: add rv1108 ACLK_GAMC and PCLK_GMAC ID
  clk: rockchip: add rk3228 sclk_sdio_src ID
  clk: rockchip: add special approximation to fix up fractional clk's jitter
  clk: fractional-divider: allow overriding of approximation
  clk: rockchip: modify rk3128 clk driver to also support rk3126
  dt-bindings: add documentation for rk3126 clock
  clk: rockchip: add some critical clocks for rv1108 SoC
  clk: rockchip: rename some of clks for rv1108 SoC
  clk: rockchip: fix up some clks describe error for rv1108 SoC
  clk: rockchip: support more clks for rv1108
  clk: rockchip: fix up the pll clks error for rv1108 SoC
  clk: rockchip: support more rates for rv1108 cpuclk
  clk: rockchip: fix up indentation of some RV1108 clock-ids
  clk: rockchip: rename the clk id for HCLK_I2S1_2CH
  clk: rockchip: add more clk ids for rv1108
2017-08-23 15:33:45 -07:00
Stephen Boyd
1fea70bc18 Allwinner clock changes for 4.14, round 2
Usual improvements:
 
   - Added support for fixed post-divider on divider and NKM-style clocks
 
   - Added driver for R40 CCU
 
 Non critical fixes (from round 1):
 
   - Fix sunxi-ng/ccu-sunxi-r.h header file guard macro typo
 
   - Make fractional clock modes really used and correctly configured
 
   - Make H3 cpu clock rate change correctly to be used with cpufreq
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCgAsFiEE2nN1m/hhnkhOWjtHOJpUIZwPJDAFAlmaR6AOHHdlbnNAY3Np
 ZS5vcmcACgkQOJpUIZwPJDC8YA//aLULoosISnyHs+wKowVHuDb7/mQ82O1gOAxC
 oE/vscd/WCRm7A5tfy+xHfajX/YRf32Qc09wB7fxUF4R0lgkO9QjUO0yX74a6bPh
 HCh/+bcmeNl9TZAYpTs72Q4nfc1x63OZwxMqTRnBmh3cevyIBJiFvqPjoMeD+Ari
 n32QEBgGE+A8bWshVFpNFyId6iyfMfozSYninIkVkwMGr7QgBgJRK1/5sftyZMR+
 NQ2IGkaUfICnXofF//pNKsH7TN770gyDtFVWjrKZMrEKoP+gp3mawzMpfePKH/O6
 4ihcm5LOo1Kdg5UzRTpQ2B/9fNUn2EvFYT6RuIBfddQcaflT1AzWtNK52j2L/crD
 tFyamcCSsNY5LzeySbVW+pQMRfrq6UCYtssiL7HYEcwMzvv61PfyDtKq5dxtJd0Q
 W8S6wPE/foj0i0JQWs0K70AacGU6XdEanUAtc5r3AsniCwwOtlwnaQqOlE5CiwAo
 HOSItOxX4Y/9QglnntsDyhNUaKpaSiG21XdE3ho3xq1/CS9ED3p5Ljbshem5fnPi
 mPisF6Ca6NVvCZ+sjH2RVvmGyh3d+BPfQLWC/sTamC4rnpDalrMq6IsCOivzbxqQ
 ltkYwUO1nmz5NMloeWYCUWWmLUOECCQu7Mppf2UQxpidrEEY0mbBYFdOlehrlHZT
 bWt2NdQ=
 =DKSp
 -----END PGP SIGNATURE-----

Merge tag 'sunxi-clk-for-4.14-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-next

Pull Allwinner clock changes from Chen-Yu Tsai:

 * Added support for fixed post-divider on divider and NKM-style clocks
 * Added driver for R40 CCU
 * Fix sunxi-ng/ccu-sunxi-r.h header file guard macro typo
 * Make fractional clock modes really used and correctly configured
 * Make H3 cpu clock rate change correctly to be used with cpufreq

* tag 'sunxi-clk-for-4.14-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: support R40 SoC
  dt-bindings: add compatible string for Allwinner R40 CCU
  clk: sunxi-ng: nkm: add support for fixed post-divider
  clk: sunxi-ng: div: Add support for fixed post-divider
  dt-bindings: clock: sunxi-ccu: Add compatibles for sun5i CCU driver
  clk: sunxi-ng: allow set parent clock (PLL_CPUX) for CPUX clock on H3
  clk: sunxi-ng: h3: gate then ungate PLL CPU clk after rate change
  clk: sunxi-ng: Wait for lock when using fractional mode
  clk: sunxi-ng: Make fractional helper less chatty
  clk: sunxi-ng: multiplier: Fix fractional mode
  clk: sunxi-ng: Fix fractional mode for N-M clocks
  clk: sunxi-ng: Fix header guard of ccu-sun8i-r.h
2017-08-23 15:31:48 -07:00
Stephen Boyd
4d64556b36 clk/samsung updates for 4.14
Changes in definitions of audio related clocks for Exynos5420/5422/5800
 SoCs: a fix of mau_epll clock definition and changes enabling clock rate
 setting propagation on a path from the I2S IP block up the EPLL.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABCAAGBQJZjGUFAAoJEE1bIKeAnHqLpPMQAJc2E7Gp6BX7LdUmN6r8GuCS
 AdfyqnUUH0oW6OTTrhZvW/Jg7i8P0dcTtWF9qhBbsg78l/4QPprKHOz+uRGeJ7TJ
 usdDnRiiThlfSGGx5Wu3zxv7EhXLpXamRK3uWKIEEyjrmxXiZXWZDYN9O40gZ0pI
 DSBBNoHD4ikotLNHTjlOEMtxKH7y7/Yda7QSWZsddsNhmvdsuG8iOAagbujJtkie
 1rH20eL4z8BA0kjyW3/U6B35cx83KrmpjG9TUoTEwG580X6uTOmpXZ644Rzf3LLs
 +In/UpEqvXXr4lbBtvoOWzMcsaF5PcSx1otmb+oqAdfN85M3z/lquX0Kv/ZT2Y/x
 7hWzAJMLBABA5UgEgB75Sf8TJC1YH7oWHZcRux+nN/AdFXIvIgbuCcVSgn8s0+Tx
 cnWebKQyzRTNWirf3GzExHIhsUEfaB/qdgg4CE8a+tDzundCu3k2dr9Ss+sFYaaU
 qEg3EazbU5vOFbaNE9ImZulLMTprQ09jlvvaKV6MA9mB90mIfUgyjOUXhqLov4S9
 Uuen+0tFeGMNxVtm6mUYT9zqiFlktP3BluoWQwyd2wyrqX1PgHwYj2KhrwoGzm7+
 mSKKwSBulJN5yIbSQdX+O31sddlcOHz+ey+7ttaY5j8s8AoP+eGQlSVMY6YKllWm
 on85KiSm0Hpxvmx2LMMX
 =pAH5
 -----END PGP SIGNATURE-----

Merge tag 'clk-v4.14-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk into clk-next

Pull Samsung clk driver updates from Sylwester Nawrocki:

Changes in definitions of audio related clocks for Exynos5420/5422/5800
SoCs: a fix of mau_epll clock definition and changes enabling clock rate
setting propagation on a path from the I2S IP block up the EPLL.

* tag 'clk-v4.14-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk:
  clk: samsung: exynos542x: Enable clock rate propagation up to the EPLL
  clk: samsung: Add CLK_SET_RATE_PARENT to some AUDSS CLK CON clocks
  clk: samsung: Fix mau_epll clock definition for exynos5422
2017-08-23 15:30:29 -07:00
Stephen Boyd
3477a72b41 Amlogic clock driver updates for 4.14
* meson8b: add the reset controller to the clkc
 * meson: expose all clk ids
 * gxbb-aoclk: Add CEC 32k clock
 * gxbb: add mmc input 0 clocks
 * meson: fix protection against undefined clks
 * gxbb: fix audio divider flags
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJZhJ1CAAoJEHfc29rIyEnRRfkP/3ZFN6URCoh2FGaS39SYHVg8
 PuaeCaoDd6/DMuLAWGMlsPtbwqsmqIsA03ZhB8XBzcezfsvc8yGMveTsw8omvJr5
 ejXKqeyMxBoRmqrho6+OeMNdkyrHPIkJ9CyTT5PUVlh6jLEnRP2cnsbQYzWRaICN
 4BvmkNKZm8yqTkAaneHIzUmcWDDXSq3C43Y3q8622Et2V4h6J74O1KtQLw7o1AAo
 0T5mRgAIzo5tJQ4olFfhqOzgcLUbKZmA7jCR7uTaV2Nvde8IHLHpLIStnHCe532s
 XEjWWgGGS+E2Df3gB3AiHbCgstXZDcdEimt/r//y2+pw2TauuDTcvxIfdfMxMBLI
 mEDdwFqNG3zXXaIMgYIa7FY7lJl+TQj5d8CgzmpmQGwWkMrL3I6KWywhCPLHlKGu
 OiwBqRDMq3pJRfhKVDmImanlg+FNsoP0UE+QfGQxW5XGJclWdKo5JTSwh876UsVi
 ZZGhDwTetPHU1LpEXg0Fvaynecdp1wgLK0ofHFLAUfmhd2FImWGZG1qBwuwhj1iS
 1uYB7d+pez91lpU08wNm9dfkSKaXc59ph44j3eEFfJOiRrswkz1rPH7tHCQz7sM4
 yUcq2AEmAet6rpqPNikfOZkvItFjk5HcZCMdaOKp30kIdSD22Xzh55ni0Ji1x7Yv
 ZmvPT65ZU+kWqJjF6Xzo
 =Ihpj
 -----END PGP SIGNATURE-----

Merge tag 'meson-clk-for-4.14' of git://github.com/baylibre/clk-meson into clk-next

Pull Amlogic clock driver updates from Neil Armstrong:

 * meson8b: add the reset controller to the clkc
 * meson: expose all clk ids
 * gxbb-aoclk: Add CEC 32k clock
 * gxbb: add mmc input 0 clocks
 * meson: fix protection against undefined clks
 * gxbb: fix audio divider flags

* tag 'meson-clk-for-4.14' of git://github.com/baylibre/clk-meson:
  clk: meson: gxbb-aoclk: Add CEC 32k clock
  clk: meson: gxbb-aoclk: Switch to regmap for register access
  dt-bindings: clock: amlogic, gxbb-aoclkc: Update bindings
  clk: meson: gxbb: Add sd_emmc clk0 clocks
  clk: meson: gxbb: fix clk_mclk_i958 divider flags
  clk: meson: gxbb: fix meson cts_amclk divider flags
  clk: meson: meson8b: register the built-in reset controller
  dt-bindings: clock: gxbb-aoclk: Add CEC 32k clock
  clk: meson: gxbb: Add sd_emmc clk0 clkids
  clk: meson-gxbb: expose almost every clock in the bindings
  clk: meson8b: expose every clock in the bindings
  clk: meson: gxbb: fix protection against undefined clks
  clk: meson: meson8b: fix protection against undefined clks
  dt-bindings: clock: meson8b: describe the embedded reset controller
2017-08-23 15:28:52 -07:00
Kevin Hilman
4db26f83a7 Linux 4.13-rc4
-----BEGIN PGP SIGNATURE-----
 
 iQEcBAABAgAGBQJZh8YYAAoJEHm+PkMAQRiG46QIAKOBbLlOY38zIJwDfJs6ydvH
 eFLryznS7RM2w0Gw1RyVAyWS43QS9RUNGDMa4UOb9AvurBHYpK29t1uq6LejQ/hn
 2Uvxuq95qEVVYzN1OA3WzLKUa35g3qRM9rTYFz7xGMRp2Ldk/aPRi/PVJLhSO3YQ
 HFRLsfNMWTkSR4imuxm7NS+cYMcqWbDbanvW5IwQ+RFRPo8Ac1PbFpGUdVtar6+O
 Fm3GLBsRB3dijJwYyWQKeDvtLr608i50by4yS7EIAqbUSfoDpJEyTL57oTCRok7P
 5ZycGpK4bXWF0OpBWpKgrFO5tB7xfzUDa3TmNhS3Q8ep4KLHNXwM3V6p8Y+YZco=
 =FId5
 -----END PGP SIGNATURE-----

Merge tag 'v4.13-rc4' into v4.14/dt64

Linux 4.13-rc4
2017-08-22 15:37:31 -07:00
Elaine Zhang
64a1644bc3 clk: rockchip: fix the rv1108 clk_mac sel register description
The source clock ordering is wrong, as shown in the TRM:
cru_sel24_con[8]
rmii_extclk_sel
clock source select control register
1'b0: from internal PLL
1'b1: from external IO

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-08-22 02:55:03 +02:00
Elaine Zhang
c7d0045b08 clk: rockchip: rename rv1108 macphy clock to mac
This MAC has no internal phy for rv1108 and the whole clock
infrastructure hasn't been used yet, so is safe to fix.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-08-22 02:53:55 +02:00
Elaine Zhang
100542725f clk: rockchip: add rv1108 ACLK_GMAC and PCLK_GMAC clocks
Add gmac aclk and pclk clock gates.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-08-22 02:50:45 +02:00
Elaine Zhang
fe53230cf2 clk: rockchip: add rk3228 SCLK_SDIO_SRC clk id
In some special circumstances, may be need to reparent clk for sclk_sdio_src.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-08-22 02:40:18 +02:00
Icenowy Zheng
cd030a78f7 clk: sunxi-ng: support R40 SoC
Allwinner R40 SoC have a clock controller module in the style of the
SoCs beyond sun6i, however, it's more rich and complex.

Add support for it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2017-08-19 17:04:37 +08:00
Hiromitsu Yamasaki
c29f82951b clk: renesas: r8a7796: Add USB3.0 clock
This patch adds USB3.0-IF0 clock for R8A7796 SoC.

Signed-off-by: Hiromitsu Yamasaki <hiromitsu.yamasaki.ym@renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-08-17 09:22:26 +02:00
Yoshihiro Shimoda
311accb645 clk: renesas: rcar-usb2-clock-sel: Add R-Car USB 2.0 clock selector PHY
R-Car USB 2.0 controller can change the clock source from an oscillator
to an external clock via a register. So, this patch adds support
the clock source selector as a clock driver.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-08-17 09:22:23 +02:00
Geert Uytterhoeven
d71e851d82 clk: renesas: cpg-mssr: Add R8A77995 support
Add R-Car D3 (R8A77995) Clock Pulse Generator / Module Standby and
Software Reset support, using the CPG/MSSR driver core and the common
R-Car Gen3 CPG code.

Based on the R-Car Series, 3rd Generation Hardware User's Manual, Rev.
0.55, Jun. 30, 2017.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
2017-08-16 09:51:48 +02:00
Geert Uytterhoeven
696997e004 clk: renesas: rcar-gen3: Add support for SCCG/Clean peripheral clocks
On R-Car Gen3 SoCs with a Spread Spectrum Clock Generator (e.g. R-Car
D3), a peripheral clock divider has been added, to select between clean
and spread spectrum parents.

Add a new clock type to the R-Car Gen3 driver core to handle this.
To avoid increasing the size of struct cpg_core_clk, both parents and
dividers are stored in the existing parent resp. div fields.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-16 09:51:47 +02:00
Geert Uytterhoeven
09a7dea9d5 clk: renesas: rcar-gen3: Add divider support for PLL1 and PLL3
On some R-Car Gen3 SoCs (e.g. R-Car D3), PLL1 and PLL3 use a divider
value different from one.  Extend struct rcar_gen3_cpg_pll_config to handle
this.  As all multipliers and dividers are small, table size increase
can be kept limited by storing them in u8s instead of unsigned ints,
which saves ca. 0.5 KiB for a generic kernel.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-16 09:51:47 +02:00
Icenowy Zheng
a6653773d6 clk: sunxi-ng: nkm: add support for fixed post-divider
SATA PLL on Allwinner R40 is of type (parent) * N * K / M / 6 where 6 is
the fixed post-divider.

Add post-divider support for NKM type clock.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
[wens@csie.org: Fixed application of post-divider in set_rate callback]
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2017-08-14 22:45:06 +08:00
Priit Laes
721353c030 clk: sunxi-ng: div: Add support for fixed post-divider
SATA clock on sun4i/sun7i is of type (parent) / M / 6 where
6 is fixed post-divider.

Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2017-08-14 22:31:46 +08:00
Sylwester Nawrocki
599cebea93 clk: samsung: exynos542x: Enable clock rate propagation up to the EPLL
The CLK_SET_RATE_PARENT flag is added to clocks between the EPLL
and the audio subsystem clock controller so that the EPLL's output
frequency can be set indirectly with clk_set_rate() on a leaf clock.
That should be safe as EPLL is normally only used to generate clock
for the audio subsystem.
With this change we can avoid passing the EPLL clock to the ASoC
machine driver.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-08-10 10:56:23 +02:00
Sylwester Nawrocki
7df45a532c clk: samsung: Add CLK_SET_RATE_PARENT to some AUDSS CLK CON clocks
This allows clk rate propagation up to the clock tree so EPLL
can be reprogrammed indirectly when setting rate of the Audio
Subsystem clocks.
The advantage is that sound machine driver can operate only
on the leaf clocks rather than explicitly re-configuring
the root clock (EPLL).

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-08-09 17:17:04 +02:00
Sylwester Nawrocki
41097f25e9 clk: samsung: Fix mau_epll clock definition for exynos5422
Parent clock of the MAU_EPLL gate clock on exynos5422 is
"mout_user_mau_epll", not "mout_mau_epll_clk". This change
only affects exynos5422/5800.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-08-09 17:16:55 +02:00
Elaine Zhang
5d890c2df9 clk: rockchip: add special approximation to fix up fractional clk's jitter
>From Rockchips fractional divider description:
  3.1.9  Fractional divider usage
  To get specific frequency, clocks of I2S, SPDIF, UARTcan be generated by
  fractional divider. Generally you must set that denominator is 20 times
  larger than numerator to generate precise clock frequency. So the
  fractional divider applies only to generate low frequency clock like
  I2S, UART.

Therefore add a special approximation function that handles this
special requirement.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-08-08 17:45:42 +02:00
Elaine Zhang
ec52e46256 clk: fractional-divider: allow overriding of approximation
Fractional dividers may have special requirements concerning numerator
and denominator selection that differ from just getting the best
approximation.

For example on Rockchip socs the denominator must be at least 20 times
larger than the numerator to generate precise clock frequencies.

Therefore add the ability to provide custom approximation functions.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-08-08 17:39:48 +02:00
Elaine Zhang
3346140588 clk: rockchip: modify rk3128 clk driver to also support rk3126
rk3128 and rk3126 have some gate registers describe differences.
So need to make some distinctions.
The RK3126 and RK3128 Same clock description we move it to
the common clock branches.
And the different clks description use the own clock branches.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-08-08 17:30:29 +02:00
Elaine Zhang
b75f38451a clk: rockchip: add some critical clocks for rv1108 SoC
the bus/periph/nclk_ddrupctl/pclk_ddrmon/pclk_acodecphy/pclk_pmu
no driver to handle them,
Chip design requirements for these clock to always on.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-08-08 17:28:57 +02:00
Elaine Zhang
a52394e9a0 clk: rockchip: rename some of clks for rv1108 SoC
Rename some of clks to keep the consistency with the TRM.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-08-08 17:28:28 +02:00
Elaine Zhang
ac5a00a371 clk: rockchip: fix up some clks describe error for rv1108 SoC
1. fix up the parent name
2. remove the CLK_IGNORE_UNUSED flag for some clk not need to always on.
3. fix up some clks regs describe error.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-08-08 17:27:29 +02:00
Elaine Zhang
2566337bfc clk: rockchip: support more clks for rv1108
Add the description of the missing clock,
make the clock more complete.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-08-08 17:25:41 +02:00
Elaine Zhang
eca05f0011 clk: rockchip: fix up the pll clks error for rv1108 SoC
fix up the lock_shift describe error.
remove the ROCKCHIP_PLL_SYNC_RATE flag for gpll.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-08-08 00:48:53 +02:00
Elaine Zhang
d00b4d943d clk: rockchip: support more rates for rv1108 cpuclk
fix up the cpuclk rates table for support more freqs.
fix up the mux_core_mask describe error.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-08-06 19:46:44 +02:00
Neil Armstrong
62ec0b9754 clk: meson: gxbb-aoclk: Add CEC 32k clock
The CEC 32K AO Clock is a dual divider with dual counter to provide a more
precise 32768Hz clock for the CEC subsystem from the external xtal.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-08-04 18:02:02 +02:00
Neil Armstrong
ffb13e3b84 clk: meson: gxbb-aoclk: Switch to regmap for register access
Switch the aoclk driver to use the new bindings and switch all the
registers access to regmap only.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-08-04 18:02:01 +02:00
Jerome Brunet
914e6e80b3 clk: meson: gxbb: Add sd_emmc clk0 clocks
Input source 0 of the mmc controllers is not directly xtal, as currently
described in DT. Each controller is fed by a composite clock (the usual
mux, divider and gate). The muxes inputs are the xtal (default) and the
fclk_div clocks. These parents, along with the divider, should be able to
provide the necessary rates for mmc and nand operation.

The input muxes should also be able to take mpll2, mpll3 and gp0_pll but
these are precious clocks, needed for other usage. It is better if the
mmc does not use these them. For this reason, mpll2, mpll3 and gp0_pll is
not listed among the possible parents.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-08-04 18:02:00 +02:00
Jerome Brunet
7605aa5b41 clk: meson: gxbb: fix clk_mclk_i958 divider flags
CLK_DIVIDER_ROUND_CLOSEST was incorrectly put in the hw.init flags
while it should have been in the divider flags

Fixes: 3c277c247e ("clk: meson: gxbb: add cts_mclk_i958")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-08-04 18:01:59 +02:00
Jerome Brunet
004f6f462d clk: meson: gxbb: fix meson cts_amclk divider flags
CLK_DIVIDER_ROUND_CLOSEST was incorrectly put in the hw.init flags
while it should have been in the divider flags

Fixes: 4087bd4b21 ("clk: meson: gxbb: add cts_amclk")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-08-04 18:01:59 +02:00
Martin Blumenstingl
189621726b clk: meson: meson8b: register the built-in reset controller
The clock controller also includes some reset lines. This patch
implements a reset controller to assert and de-assert these resets.
The reset controller itself is registered early (through
CLK_OF_DECLARE_DRIVER) because it is needed very early in the boot
process (to start the secondary CPU cores).

According to the public S805 datasheet there are two more reset bits
in the HHI_SYS_CPU_CLK_CNTL0 register, which are not implemented by
this patch (as these seem to be unused in Amlogic's vendor Linux kernel
sources and their u-boot tree):
- bit 15: GEN_DIV_SOFT_RESET
- bit 14: SOFT_RESET

All information was taken from the public S805 Datasheet and Amlogic's
vendor GPL kernel sources. This patch is based on an earlier version
submitted by Carlo Caione.

Suggested-by: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-08-04 18:01:58 +02:00
Jerome Brunet
a5841de691 clk: meson: gxbb: Add sd_emmc clk0 clkids
Add the clkids for the clocks feeding the input0 of the mmc controllers

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-08-04 17:49:34 +02:00
Jerome Brunet
90640fd05e clk: meson-gxbb: expose almost every clock in the bindings
Expose all clocks which maybe used as DT bindings
Only clock ids internal the controller remain un-exposed

Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-08-04 17:49:33 +02:00
Jerome Brunet
31128822ce clk: meson8b: expose every clock in the bindings
Expose all clocks which maybe used as DT bindings
Only clock ids internal the controller remain un-exposed (none on this
particular controller at the moment)

Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-08-04 17:49:33 +02:00
Jerome Brunet
1f6f1dcb8d clk: meson: gxbb: fix protection against undefined clks
gxbb clock driver gracefully handles case where the clkid is defined but
the clock hw pointer is not provided, as long as it is not at the end of
the hw_onecell_data array.

This patch ensure that the last entries are defined as well to handle
this particular case.

Fixes: a70c6e06ed ("clk: meson: gxbb: protect against holes in the onecell_data array")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-08-04 17:49:32 +02:00
Jerome Brunet
de2bc4178b clk: meson: meson8b: fix protection against undefined clks
meson8b clock driver gracefully handles case where the clkid is defined
but the clock hw pointer is not provided, as long as it is not at the end
of the hw_onecell_data array.

This patch ensure that the last entries are defined as well to handle
this particular case.

Fixes: e92f7cca44 ("clk: meson8b: clean up fixed rate clocks")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-08-04 17:49:31 +02:00
Icenowy Zheng
913c3d85b4 clk: sunxi-ng: allow set parent clock (PLL_CPUX) for CPUX clock on H3
The CPUX clock, which is the main clock of the ARM core on Allwinner H3,
can be adjusted by changing the frequency of the PLL_CPUX clock.

Allowing setting parent clock for the CPUX clock, thus the PLL_CPUX
clock can be adjusted when adjusting the CPUX clock.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Fixes: 0577e4853b ("clk: sunxi-ng: Add H3 clocks")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2017-08-04 12:05:33 +08:00
Chen-Yu Tsai
48d5eb619c clk: sunxi-ng: h3: gate then ungate PLL CPU clk after rate change
This patch utilizes the new PLL clk notifier to gate then ungate the
PLL CPU clock after rate changes. This should prevent any system hangs
resulting from cpufreq changes to the clk.

Reported-by: Ondrej Jirman <megous@megous.com>
Fixes: 0577e4853b ("clk: sunxi-ng: Add H3 clocks")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: Icenowy Zheng <icenowy@aosc.io>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-04 12:05:20 +08:00
Masahiro Yamada
e66d57a92e clk: uniphier: remove sLD3 SoC support
This SoC is too old.  It is difficult to maintain any longer.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-03 15:38:14 -07:00
Stephen Boyd
8e7be401f2 Merge branch 'clk-fixes' into clk-next
* clk-fixes:
  clk: keystone: sci-clk: Fix sci_clk_get
  clk: meson: mpll: fix mpll0 fractional part ignored
  clk: samsung: exynos5420: The EPLL rate table corrections
  clk: sunxi-ng: sun5i: Add clk_set_rate_parent to the CPU clock
2017-08-02 18:38:01 -07:00
Tero Kristo
f54d2cd3c1 clk: keystone: sci-clk: Fix sci_clk_get
Currently a bug in the sci_clk_get implementation causes it to always
return a clock belonging to the last device in the static list of clock
data. This is due to a bug in the init code that causes the array
used by sci_clk_get to only be populated with the clocks for the last
device, as each device overwrites the entire array with its own clocks.

Fix this by calculating the actual number of clocks for the SoC, and
allocating the whole array in one go. Also, we don't need the handle
to the init data array anymore after doing this, instead we can
just compare the dev_id / clk_id against the registered clocks and
use binary search for speed.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Reported-by: Dave Gerlach <d-gerlach@ti.com>
Fixes: b745c0794e ("clk: keystone: Add sci-clk driver support")
Cc: Nishanth Menon <nm@ti.com>
Tested-by: Franklin Cooper <fcooper@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-02 18:37:26 -07:00
Stephen Boyd
5c0858f12b Allwinner clock fixes for 4.13
One critical clock fix for sun5i (A10s/A13/R8) which enables propogation
 of clock rate changes from the "cpu" clock to it's parent PLL clock.
 This fixes cpufreq related crashes that have been observed on KernelCI
 with the C.H.I.P. and multi_v7_defconfig.
 -----BEGIN PGP SIGNATURE-----
 
 iQJCBAABCgAsFiEE2nN1m/hhnkhOWjtHOJpUIZwPJDAFAlmBWB8OHHdlbnNAY3Np
 ZS5vcmcACgkQOJpUIZwPJDBGvRAAkwO1p1Aw62i5QmrGox3iyWabH/Rbon0M+tLQ
 jP+kVukWrLR8REclkpwXqSK07Blg5m3o1MVMJXBKKOD6NAKCPOJoN75K/aX44fzZ
 msrTuuzGkixovkG7p8ln253v/TOoBMwwK+QDtTOk7zBNEZuRKevKAUOglQTJYTmy
 um7cVsisv5Yr89vtG767o0UyP82TUbnga6yLYY+72PbEKP1MnJtR0gzQp6Y9zxmW
 Oyt7MaHH7km6SDGrQUWgQ8SvZ36s3uLxPfrtPx0zbTE1sM31sgdHf4kZmciP7Yap
 eiLoHxV+twVxrgYh/Fl7BxOMfSqdIpZrzL3z2N3Hc53oARjOSl9c3N12UVzC0D0K
 lRldFpmW26U21xMp22033j6uW9daU2PmyybNyJu892DRfY8RcX2N7otwIgAtxEtY
 SKvVaG/uin2WVXs5FsxbpBUOm5xEJ04547TXuEegGjKyEv8+d1lCO6yU8i6xdUE0
 qBzNm5rNuuSTD5zKu41YpEWhMWxEFEJE+Cx/tsCOhaySDuKKOrV7Bbd15ec3PjRD
 llv2TvJNiBAkm4pakOsLZcDKk6RWqBEoN+6GXuC/66Dm+k+rR0nsRthDk418pDF2
 T8YgG1p5wETdh/DfnUnwg63xN/dVs4On8IJkGunznTTGMxHiYduQsmqAxkgaRq6h
 k4insAE=
 =uoCy
 -----END PGP SIGNATURE-----

Merge tag 'sunxi-clk-fixes-for-4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-fixes

Pull one Allwinner clock fix from Chen-Yu Tsai:

One critical clock fix for sun5i (A10s/A13/R8) which enables propagation
of clock rate changes from the "cpu" clock to it's parent PLL clock.
This fixes cpufreq related crashes that have been observed on KernelCI
with the C.H.I.P. and multi_v7_defconfig.

* tag 'sunxi-clk-fixes-for-4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: sun5i: Add clk_set_rate_parent to the CPU clock
2017-08-02 09:11:44 -07:00
Stephen Boyd
b48d7c5b89 Meson Clock fixes:
- mpll: fix mpll0 fractional part ignored
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJZgHG0AAoJEHfc29rIyEnRKCwQAIoujlfO+NULaxl7JgGagZDy
 nJ1FU1kShDtm/pgWbW52cC92zgCJl5PGihxnwPVdJWd59TNKjPoREr1m5S8mWXPv
 IOVVoDg5VRfLVhwcuETi0aiXUmFjRQusgjM9NXyZpTcx2MtPY2CB92OMoaiITJgm
 a85tsfpptCQqAfixYsp8IqiHMnbLRj2Ntbf5+bHTcHrUnLmUUIJh6Fa7+16f8KJo
 JaYQ95X1c1ems4ECrYFINCgfNpi659deIum/UPZKysX0f8c78k0ANV9sMAyBazs8
 dhEdOWaGAohzyGJZg+btXLLnaRNGqVExP8qZ2X3+11Ob9r3VS95+sN7X19x+4q7C
 jKxgreD4jR3vv5ayXv/H15GK/y6xdDyO7vTkiMA9km8o5FK1Q/NYAlEbJx0Sr/v6
 Z3Dvp1IDdTNCzVa4ASmAyqOTOsx8SSqp6CdlpoQrutSrbnQsVZ8hleYrxjrGbsKC
 StB1g9JQEqOurOzMd50CdreKghCtQeI3TegxEKmhm++Q9sBD7KVhOpPw9ccty181
 GaEdfcdscKouT90c4tog3EwFihjoi2oidlU9PioJTIfeBfAE7q8P4ozMjzP7DCVd
 rSg9thk20oZYnep9UHF0NzM8JXv1dKcPTw44dkGRtj4JL9F0Grv8xFwgvXHG9SMU
 sRcgc13O8rNF6jjUQeJn
 =sv+n
 -----END PGP SIGNATURE-----

Merge tag 'meson-clk-fixes-for-4.13-rc4-v2' of git://github.com/baylibre/clk-meson into clk-fixes

Pull one Meson clock fix from Neil Armstrong

* tag 'meson-clk-fixes-for-4.13-rc4-v2' of git://github.com/baylibre/clk-meson:
  clk: meson: mpll: fix mpll0 fractional part ignored
2017-08-02 09:09:42 -07:00
Jerome Brunet
1f737ffa13 clk: meson: mpll: fix mpll0 fractional part ignored
mpll0 clock is special compared to the other mplls. It needs another
bit (ssen) to be set to activate the fractional part the mpll divider

Fixes: 007e6e5c5f ("clk: meson: mpll: add rw operation")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-08-01 14:18:31 +02:00
Jernej Škrabec
1d42460a49 clk: sunxi-ng: Wait for lock when using fractional mode
Currently ccu_frac_helper_set_rate() doesn't wait for a lock bit to be
set before returning. Because of that, unstable clock may be used.

Add a wait for lock in the helper function.

Fixes: 89a3dfb787 ("clk: sunxi-ng: Add fractional lib")
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2017-08-01 10:18:23 +08:00
Jernej Škrabec
b655f36e20 clk: sunxi-ng: Make fractional helper less chatty
ccu_frac_helper_read_rate() prints some info which is not really
helpful except during debugging.

Replace printk() with pr_debug().

Fixes: 89a3dfb787 ("clk: sunxi-ng: Add fractional lib")
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2017-08-01 10:18:23 +08:00
Jernej Škrabec
1e92ae651e clk: sunxi-ng: multiplier: Fix fractional mode
Driver for multiplier clock is missing a call to
ccu_frac_helper_enable() when fractional mode is selected.

Add a call to ccu_frac_helper_enable().

Fixes: d77e8135b3 ("clk: sunxi-ng: multiplier: Add fractional support")
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2017-08-01 10:18:22 +08:00
Jernej Škrabec
b64dfec010 clk: sunxi-ng: Fix fractional mode for N-M clocks
N-M factor clock driver is missing a call to ccu_frac_helper_enable()
when fractional mode is used. Additionally, most SoCs require that M
factor must be set to 0 when fractional mode is used.

Without this patch, clock keeps the old value and clk_set_rate() returns
without error.

Fixes: 6174a1e24b ("clk: sunxi-ng: Add N-M-factor clock support")
CC: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2017-08-01 10:18:21 +08:00
Sylwester Nawrocki
5b30850bd6 clk: samsung: exynos5420: The EPLL rate table corrections
This patch fixes values of the EPLL K coefficient and changes
the EPLL output frequency values to match exactly what is
possible to achieve with given M, P, S, K coefficients.
This allows to avoid rounding errors and unexpected frequency
being set with clk_set_rate(), due to recalc_rate returning
different values than the PLL rate specified in the
exynos5420_epll_24mhz_tbl table. E.g. this prevents a case
where two consecutive clk_set_rate() calls with same argument
result in different PLL output frequency.

The PLL output frequencies have been calculated with formula:

f = fxtal * (M * 2^16 + K) / (P * 2^S) / 2^16

where fxtal = 24000000.

Fixes: 9842452acd ("clk: samsung: exynos542x: Add EPLL rate table")
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-31 13:16:03 -07:00
Matthias Kaehlcke
f70893dcce clk: sunxi-ng: Fix header guard of ccu-sun8i-r.h
Remove trailing extra underscore in definition of _CCU_SUN8I_R_H

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-07-27 16:53:47 +02:00
Maxime Ripard
9735ee9e3c clk: sunxi-ng: sun5i: Add clk_set_rate_parent to the CPU clock
The current CPU clock is missing the option to change the rate of its
parents, leading to improper rates calculated by cpufreq, and eventually
crashes.

Cc: <stable@vger.kernel.org>
Fixes: 5e73761786 ("clk: sunxi-ng: Add sun5i CCU driver")
Reported-by: Kevin Hilman <khilman@baylibre.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-07-24 11:37:04 +02:00
Rob Herring
1667393126 clk: Convert to using %pOF instead of full_name
Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: "Emilio López" <emilio@elopez.com.ar>
Cc: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Prashant Gaikwad <pgaikwad@nvidia.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: linux-clk@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: James Liao <jamesjj.liao@mediatek.com>
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-21 15:49:54 -07:00
Yuantian Tang
45899dc5f1 clk: qoriq: add pll clock to clock lookup table
Register each PLL and its division clocks to clock
lookup table to facilitate the clock look up for
clock consumer.

Signed-off-by: Tang Yuantian <andy.tang@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-21 15:01:45 -07:00
Yuantian Tang
e0c888c4a2 clk: qoriq: add clock configuration for ls1088a soc
Clock on ls1088a chip takes primary clocking input from the external
SYSCLK signal. The SYSCLK input (frequency) is multiplied using
multiple phase locked loops (PLL) to create a variety of frequencies
which can then be passed to a variety of internal logic, including
cores and peripheral IP modules.

Signed-off-by: Tang Yuantian <andy.tang@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-21 15:01:44 -07:00
Wolfram Sang
2d6f257743 clk: renesas: rcar-gen3-cpg: Refactor checks for accessing the div table
Do the checks for accessing the SD divider table only when the rate gets
updated, namely on init and set_rate. In all other cases, reuse the last
value. This simplifies code, runtime load, and error reporting.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-07-19 18:06:15 +02:00
Wolfram Sang
f317880c5b clk: renesas: rcar-gen3-cpg: Drop superfluous variable
'rate' is not used, so we can use 'parent_rate' directly.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-07-19 18:05:44 +02:00
Stephen Boyd
1f5e4c15d3 Merge branch 'clk-fixes' into clk-next
* clk-fixes:
  clk: x86: Do not gate clocks enabled by the firmware
  clk: gemini: Fix reset regression
2017-07-18 16:23:26 -07:00
Carlo Caione
d31fd43c0f clk: x86: Do not gate clocks enabled by the firmware
Read the enable register to determine if the clock is already in use by
the firmware. In this case avoid gating the clock.

Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Darren Hart (VMware) <dvhart@infradead.org>
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Fixes: 282a4e4ce5 ("platform/x86: Enable Atom PMC platform clocks")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-18 16:23:13 -07:00
Julia Lawall
4aafe9c603 clk: mmp: Drop unnecessary static
Drop static on a local variable, when the variable is initialized before
any possible use.  Thus, the static has no benefit.

The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@bad exists@
position p;
identifier x;
type T;
@@
static T x@p;
...
x = <+...x...+>

@@
identifier x;
expression e;
type T;
position p != bad.p;
@@
-static
 T x@p;
 ... when != x
     when strict
?x = e;
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-17 18:31:06 -07:00
Gustavo A. R. Silva
c8108cf2c0 clk: moxart: remove unnecessary statics
Remove unnecessary static on local variable _base_ in both functions
moxart_of_pll_clk_init() and moxart_of_apb_clk_init(). Such variables
are initialized before being used, on every execution path throughout
the mentioned functions. The statics have no benefit and, removing
them reduce the code size.

This issue was detected using Coccinelle and the following semantic patch:

@bad exists@
position p;
identifier x;
type T;
@@

static T x@p;
...
x = <+...x...+>

@@
identifier x;
expression e;
type T;
position p != bad.p;
@@

-static
 T x@p;
 ... when != x
     when strict
?x = e;

In the following log you can see the difference in the code size. Also,
notice that the bss segment is reduced down to zero. This log is the
output of the size command, before and after the code change:

before:
   text    data     bss     dec     hex filename
   1724     384     128    2236     8bc drivers/clk/clk-moxart.o

after:
   text    data     bss     dec     hex filename
   1697     240       0    1937     791 drivers/clk/clk-moxart.o

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-17 18:29:38 -07:00
Georgi Djakov
d515e027a9 clk: qcom: clk-smd-rpm: Fix the reported rate of branches
As there is no way to actually query the hardware for the current clock
rate, now racalc_rate() just returns the last rate that was previously
set. But if the rate was not set yet, we return the bogus rate of 1000Hz.

The branch clocks have the same rate as their parent, so in this case we
just need to remove recalc_rate ops and then the core framework will handle
this automagically. The round_rate() is unused, so remove it as well.

Reported-by: Archit Taneja <architt@codeaurora.org>
Fixes: 00f64b5887 ("clk: qcom: Add support for SMD-RPM Clocks")
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-17 18:22:30 -07:00
Sean Wang
fa12167ced clk: mediatek: fixed static checker warning in clk_cpumux_get_parent call
Fixed the signedness bug returning '(-22)' on the return type as u8 with
removing the sanity checker in clk_cpumux_get_parent() since
clk_cpumux_set_parent() always ensures validity in clk_cpumux_get_parent()
got called.

Fixes: 1e17de9049 ("clk: mediatek: add missing cpu mux causing Mediatek cpufreq can't work")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-17 18:17:28 -07:00
Linus Walleij
f905293d65 clk: gemini: Fix reset regression
commit e2860e1f62 ("serial: 8250_of: Add reset support")
introduced reset support for the 8250_of driver.

However it unconditionally uses the assert/deassert pair to
deassert reset on the device at probe and assert it at
remove. This does not work with systems that have a
self-deasserting reset controller, such as Gemini, that
recently added a reset controller.

As a result, the console will not probe on the Gemini with
this message:

Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled
of_serial: probe of 42000000.serial failed with error -524

This (-ENOTSUPP) is the error code returned by the
deassert() operation on self-deasserting reset controllers.

To work around this, implement dummy .assert() and
.deassert() operations in the Gemini combined clock and
reset controller. This fixes the issue on this system.

Cc: Joel Stanley <joel@jms.id.au>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-serial@vger.kernel.org
Fixes: e2860e1f62 ("serial: 8250_of: Add reset support")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-17 11:51:10 -07:00
Vladimir Barinov
b191155541 clk: vc5: Add support for IDT VersaClock 5P49V5925
Update IDT VersaClock 5 driver to support 5P49V5925. This chip has only
external clock input, four fractional dividers (FODs) and five clock
outputs (four universal clock outputs and one reference clock output at
OUT0_SELB_I2C).

Signed-off-by: Vladimir Barinov <vladimir.barinov+renesas@cogentembedded.com>
Reviewed-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-17 11:51:00 -07:00
Marek Vasut
dbf6b16f56 clk: vc5: Add support for IDT VersaClock 5P49V6901
Update IDT VersaClock 5 driver to support IDT VersaClock 6 5P49V6901.
This chip has two clock inputs (external XTAL or external CLKIN), four
fractional dividers (FODs) and five clock outputs (four universal clock
outputs and one reference clock output at OUT0_SELB_I2C).

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Alexey Firago <alexey_firago@mentor.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: linux-renesas-soc@vger.kernel.org
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
on Salvator-XS with the display LVDS output.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-17 11:51:00 -07:00
Marek Vasut
8c1ebe9762 clk: vc5: Add support for the input frequency doubler
The VersaClock 6 has an input frequency doubler between the input
clock mux and the predivider. Add new capability flag and support
for this frequency doubler block into the driver.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Alexey Firago <alexey_firago@mentor.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: linux-renesas-soc@vger.kernel.org
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
on Salvator-XS with the display LVDS output.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-17 11:50:59 -07:00
Marek Vasut
55997db52e clk: vc5: Split clock input mux and predivider
Split the VC5 clock input mux and the predivider to more accurately
model the hardware and fix the previously incorrect assumption that
both the OUT_SEL_I2CB and the PLL are fed from the predivider.

It is in fact the clock input mux output which is directly feeding
the clock into the OUT_SEL_I2CB output, while the clock input mux
output first passes through the predivider before it is fed into
the PLL.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Alexey Firago <alexey_firago@mentor.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: linux-renesas-soc@vger.kernel.org
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
on Salvator-XS with the display LVDS output.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-17 11:50:59 -07:00
Marek Vasut
718f4694ea clk: vc5: Configure the output buffer input mux on prepare
The output buffer input mux can be configured in either of three
states -- disabled, input from FOD, input from previous output.
Once the .prepare() callback of the output buffer is called, the
output buffer input mux must be set to either input from FOD or
input from previous output, it cannot be set to Disabled anymore
or the output won't work.

Default to the input from FOD if the output buffer input mux was
Disabled and the .prepare() was called on it.

Note that we do not set the output buffer input mux back to Disabled
in the .unprepare() callback as there is no obvious benefit of doing
so. We disable the entire output buffer in the .unprepare() callback
already.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Alexey Firago <alexey_firago@mentor.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: linux-renesas-soc@vger.kernel.org
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> # Salvator-XS with the display LVDS output.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-17 11:50:59 -07:00
Marek Vasut
325b7b90f9 clk: vc5: Do not warn about disabled output buffer input muxes
The output buffer input mux can be configured in either of three
states -- disabled, input from FOD, input from previous output.
If the output buffer input mux is set to disabled, the code in
vc5_clk_out_get_parent() would consider this an invalid setting
and warn about it, which is not necessarily the case.

In case the output buffer input mux is disabled, default to input
from FOD to have some parent and don't print the warning.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Alexey Firago <alexey_firago@mentor.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: linux-renesas-soc@vger.kernel.org
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> # Salvator-XS with the display LVDS output.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-17 11:50:59 -07:00
Marek Vasut
a4decf5899 clk: vc5: Fix trivial typo
Fix trivial typo in vc5_clk_out_unprepare() , s/Enable/Disable/ .

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Alexey Firago <alexey_firago@mentor.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: linux-renesas-soc@vger.kernel.org
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> # Salvator-XS with the display LVDS output.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-17 11:50:59 -07:00
Marek Vasut
3bded569ca clk: vc5: Prevent division by zero on unconfigured outputs
In case the initial values of the FOD registers are not configured in
the OTP or by the bootloader, it is possible that the FOD registers
will contain zeroes. The code in vc5_fod_recalc_rate() immediately
feeds the FOD divider value obtained from the FOD registers into the
div64_u64() and if the FOD divider value is zero, triggers division
by zero exception.

Check if the FOD divider value is zero and return the frequency of
the FOD output as 0 Hz if it is so. This prevents the division by
zero exception.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Alexey Firago <alexey_firago@mentor.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: linux-renesas-soc@vger.kernel.org
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> # Salvator-XS with the display LVDS output.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-17 11:50:59 -07:00
Eugeniy Paltsev
6d7489c74a clk: axs10x: introduce AXS10X pll driver
AXS10X boards manages it's clocks using various PLLs. These PLL has same
dividers and corresponding control registers mapped to different addresses.
So we add one common driver for such PLLs.

Each PLL on AXS10X board consist of three dividers: IDIV, FBDIV and
ODIV. Output clock value is managed using these dividers.

We add pre-defined tables with supported rate values and appropriate
configurations of IDIV, FBDIV and ODIV for each value.

As of today we add support for PLLs that generate clock for the
following devices:
 * ARC core on AXC CPU tiles.
 * ARC PGU on ARC SDP Mainboard.
and more to come later.

By this patch we add support for two plls (arc core pll and pgu pll),
so we had to use two different init types: CLK_OF_DECLARE for arc core pll and
regular probing for pgu pll.

Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vlad Zakharov <vzakhar@synopsys.com>
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
[sboyd@codeaurora.org: Silence dubious !x & y sparse warning,
make of_axs10x_pll_clk_setup() unregister clk on failure]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-17 11:50:59 -07:00
Geert Uytterhoeven
371dd373c6 clk: renesas: Allow compile-testing of all (sub)drivers
Enable compile-testing of the remaining clock drivers and subdrivers,
now dummies are available for of_clk_get_from_provider(),
of_device_compatible_match(), and rcar_rst_read_mode_pins(), and the
CPG/MSSR driver core has been converted from of_match_node() to
of_device_get_match_data().

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-07-17 10:36:25 +02:00
Geert Uytterhoeven
f83fbfddd8 clk: renesas: r8a7792: Add IMR-LX3/LSX3 clocks
Add the module clocks for the Image Renderer Light (SRAM) Extended 3
(IMR-LX3/LSX3) Distortion Correction Engines on R-Car V2H.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-07-17 10:26:48 +02:00
Geert Uytterhoeven
2ebedd8d5c clk: renesas: div6: Document fields used for parent selection
Add the missing documentation for the fields in struct div6_clock
related to parent selection for DIV6 clocks with selectable parents, as
found in R/SH-Mobile SoCs.

Fixes: c6d67fb037 ("clk: shmobile: div6: support selectable-input clocks")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-07-17 10:26:48 +02:00
Linus Torvalds
568d135d33 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "Boston platform support:
   - Document DT bindings
   - Add CLK driver for board clocks

  CM:
   - Avoid per-core locking with CM3 & higher
   - WARN on attempt to lock invalid VP, not BUG

  CPS:
   - Select CONFIG_SYS_SUPPORTS_SCHED_SMT for MIPSr6
   - Prevent multi-core with dcache aliasing
   - Handle cores not powering down more gracefully
   - Handle spurious VP starts more gracefully

  DSP:
   - Add lwx & lhx missaligned access support

  eBPF:
   - Add MIPS support along with many supporting change to add the
     required infrastructure

  Generic arch code:
   - Misc sysmips MIPS_ATOMIC_SET fixes
   - Drop duplicate HAVE_SYSCALL_TRACEPOINTS
   - Negate error syscall return in trace
   - Correct forced syscall errors
   - Traced negative syscalls should return -ENOSYS
   - Allow samples/bpf/tracex5 to access syscall arguments for sane
     traces
   - Cleanup from old Kconfig options in defconfigs
   - Fix PREF instruction usage by memcpy for MIPS R6
   - Fix various special cases in the FPU eulation
   - Fix some special cases in MIPS16e2 support
   - Fix MIPS I ISA /proc/cpuinfo reporting
   - Sort MIPS Kconfig alphabetically
   - Fix minimum alignment requirement of IRQ stack as required by
     ABI / GCC
   - Fix special cases in the module loader
   - Perform post-DMA cache flushes on systems with MAARs
   - Probe the I6500 CPU
   - Cleanup cmpxchg and add support for 1 and 2 byte operations
   - Use queued read/write locks (qrwlock)
   - Use queued spinlocks (qspinlock)
   - Add CPU shared FTLB feature detection
   - Handle tlbex-tlbp race condition
   - Allow storing pgd in C0_CONTEXT for MIPSr6
   - Use current_cpu_type() in m4kc_tlbp_war()
   - Support Boston in the generic kernel

  Generic platform:
   - yamon-dt: Pull YAMON DT shim code out of SEAD-3 board
   - yamon-dt: Support > 256MB of RAM
   - yamon-dt: Use serial* rather than uart* aliases
   - Abstract FDT fixup application
   - Set RTC_ALWAYS_BCD to 0
   - Add a MAINTAINERS entry

  core kernel:
   - qspinlock.c: include linux/prefetch.h

  Loongson 3:
   - Add support

  Perf:
   - Add I6500 support

  SEAD-3:
   - Remove GIC timer from DT
   - Set interrupt-parent per-device, not at root node
   - Fix GIC interrupt specifiers

  SMP:
   - Skip IPI setup if we only have a single CPU

  VDSO:
   - Make comment match reality
   - Improvements to time code in VDSO"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (86 commits)
  locking/qspinlock: Include linux/prefetch.h
  MIPS: Fix MIPS I ISA /proc/cpuinfo reporting
  MIPS: Fix minimum alignment requirement of IRQ stack
  MIPS: generic: Support MIPS Boston development boards
  MIPS: DTS: img: Don't attempt to build-in all .dtb files
  clk: boston: Add a driver for MIPS Boston board clocks
  dt-bindings: Document img,boston-clock binding
  MIPS: Traced negative syscalls should return -ENOSYS
  MIPS: Correct forced syscall errors
  MIPS: Negate error syscall return in trace
  MIPS: Drop duplicate HAVE_SYSCALL_TRACEPOINTS select
  MIPS16e2: Provide feature overrides for non-MIPS16 systems
  MIPS: MIPS16e2: Report ASE presence in /proc/cpuinfo
  MIPS: MIPS16e2: Subdecode extended LWSP/SWSP instructions
  MIPS: MIPS16e2: Identify ASE presence
  MIPS: VDSO: Fix a mismatch between comment and preprocessor constant
  MIPS: VDSO: Add implementation of gettimeofday() fallback
  MIPS: VDSO: Add implementation of clock_gettime() fallback
  MIPS: VDSO: Fix conversions in do_monotonic()/do_monotonic_coarse()
  MIPS: Use current_cpu_type() in m4kc_tlbp_war()
  ...
2017-07-15 10:59:54 -07:00
Paul Burton
6b0fd6c1a2 clk: boston: Add a driver for MIPS Boston board clocks
Add a driver for the clocks provided by the MIPS Boston board from
Imagination Technologies. 2 clocks are provided - the system clock & the
CPU clock - and each is a simple fixed rate clock whose frequency can be
determined by reading a register provided by the board.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: linux-clk@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16483/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2017-07-11 14:13:06 +02:00
Joel Stanley
785b62167d clk: gemini: Read status before using the value
The probe does a shift and mask of val without having read it from the hardware.

Fixes: 846423f967 ("clk: Add Gemini SoC clock controller")
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-29 18:47:35 -07:00
Jerome Brunet
2b286b09a0 clk: scpi: error when clock fails to register
Current implementation of scpi_clk_add just print a warning when clock
fails to register but then keep going as if nothing happened. The
provider is then registered with bogus data.

This may latter lead to an Oops in __clk_create_clk when
hlist_add_head(&clk->clks_node, &hw->core->clks) is called.

This patch fixes the issue and errors if a clock fails to register.

Fixes: cd52c2a4b5 ("clk: add support for clocks provided by SCP(System Control Processor)")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-29 18:47:35 -07:00
Alexandre Belloni
b3b02eac33 clk: at91: Add sama5d2 suspend/resume
On sama5d2, VDD core maybe be cut while in suspend. This means registers
will be lost. Ensure they are saved and restored properly.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-29 18:47:35 -07:00
Arnd Bergmann
682430e877 clk: keystone: TI_SCI_PROTOCOL is needed for clk driver
CONFIG_COMPILE_TEST allows building a configuration without
TI_SCI_PROTOCOL, which then fails to link:

drivers/clk/keystone/sci-clk.o: In function `ti_sci_clk_probe':
sci-clk.c:(.text.ti_sci_clk_probe+0x4c): undefined reference to `devm_ti_sci_get_handle'

This makes it a hard dependency. Right now, that means we can't
actually compile-test the driver unless ARCH_KEYSTONE is set as
well, but we can fix that by allowing TI_MESSAGE_MANAGER to
be selected for COMPILE_TEST as well.

Fixes: b745c0794e ("clk: keystone: Add sci-clk driver support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-22 17:39:25 -07:00
Krzysztof Kozlowski
5bb4053b59 clk: samsung: audss: Fix silent hang on Exynos4412 due to disabled EPLL
Similarly to commit f1e9203e23 ("clk: samsung: Fix Exynos 5420 pinctrl
setup and clock disable failure due to domain being gated") for
Exynos5420, the Exynos4412 also requires that EPLL is not disabled.
Otherwise any access to MAUDIO block will silently halt.

This was not visible before because EPLL on Exynos4 could not be
disabled before commit 6edfa11cb3 ("clk: samsung:
Add enable/disable operation for PLL36XX clocks").  After this commit,
on Odroid U3 board one can see silent hang, usually with last (but
unrelated) messages:

	[    2.382741] input: gpio_keys as /devices/platform/gpio_keys/input/input0
	[    2.405686] usb 1-3: new high-speed USB device number 3 using exynos-ehci
	[    2.419843] max77686-rtc max77686-rtc: setting system clock to 2017-06-21 17:04:13 UTC (1498064653)

Mark Exynos4 variant as also needed EPLL to be enabled all the time.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-22 14:55:35 -07:00
Masahiro Yamada
72d0d8672c clk: uniphier: provide NAND controller clock rate
This allows the NAND driver to get the clock rate via clk_get_rate().

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-21 10:47:27 -07:00
Jiancheng Xue
0d84659619 clk: hisilicon: add usb2 clocks for hi3798cv200 SoC
Add usb2 clocks for hi3798cv200 SoC.

Signed-off-by: Jiancheng Xue <xuejiancheng@hisilicon.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-21 10:46:45 -07:00
Linus Walleij
846423f967 clk: Add Gemini SoC clock controller
The Cortina Systems Gemini (SL3516/CS3516) has an on-chip clock
controller that derive all clocks from a single crystal, using some
documented and some undocumented PLLs, half dividers, counters and
gates. This is a best attempt to construct a clock driver for the
clocks so at least we can gate off unused hardware and driver the
PCI bus clock.

Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
[sboyd@codeaurora.org: Fix devm_ioremap_resource() return value
checking]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-21 10:45:54 -07:00
Stephen Boyd
e293915a6e clk: iproc: Remove __init marking on iproc_pll_clk_setup()
Now that this function is called from driver probe routines, it
needs to drop the __init marking because it isn't just called
from init code.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Sandeep Tripathy <sandeep.tripathy@broadcom.com>
Cc: Anup Patel <anup.patel@broadcom.com>
Cc: Ray Jui <ray.jui@broadcom.com>
Cc: Scott Branden <scott.branden@broadcom.com>
Fixes: 654cdd3229 ("clk: bcm: Add clocks for Stingray SOC")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-21 09:12:57 -07:00
Sandeep Tripathy
654cdd3229 clk: bcm: Add clocks for Stingray SOC
This patch adds support for Stingray clocks in iproc
ccf. The Stingray SOC has various plls based on iproc
pll architecture.

Signed-off-by: Sandeep Tripathy <sandeep.tripathy@broadcom.com>
Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:45 -07:00
Sean Wang
567bf2ed86 clk: mediatek: export cpu multiplexer clock for MT8173 SoCs
The patch enables CPU multiplexer clock on MT8173 SoC which fixes up
cpufreq driver fails at acquiring intermediate clock source when driver
probe is called.

Signed-off-by: Pi-Cheng Chen <pi-cheng.chen@linaro.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:44 -07:00
Sean Wang
43ed50ee5a clk: mediatek: export cpu multiplexer clock for MT2701/MT7623 SoCs
The patch enables CPU multiplexer clock on MT2701/MT7623 SoC which fixes
up cpufreq driver fails at acquiring intermediate clock source when driver
probe is called.

Signed-off-by: Pi-Cheng Chen <pi-cheng.chen@linaro.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:44 -07:00
Sean Wang
1e17de9049 clk: mediatek: add missing cpu mux causing Mediatek cpufreq can't work
This patch adds CPU multiplexer clocks which are essential for Mediatek
cpufreq driver. It would use the CPU clock multiplexer to switch to the
intermediate clock source temporarily and then wait for the primary clock
changing getting stable.

Signed-off-by: Pi-Cheng Chen <pi-cheng.chen@linaro.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:43 -07:00
Geert Uytterhoeven
34deaff763 clk: renesas: cpg-mssr: Use of_device_get_match_data() helper
If CONFIG_OF=n:

    drivers/clk/renesas/renesas-cpg-mssr.c: In function ‘cpg_mssr_probe’:
    drivers/clk/renesas/renesas-cpg-mssr.c:702: warning: dereferencing ‘void *’ pointer
    drivers/clk/renesas/renesas-cpg-mssr.c:702: error: request for member ‘data’ in something not a structure or union

To fix this, use the of_device_get_match_data() helper, for which a
dummy version is provided if CONFIG_OF=n.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:43 -07:00
Zhangfei Gao
3ff77275f7 clk: hi6220: add acpu clock
Add acpu clock, including sft clock controlling hi6220 coresight module

Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Li Pengcheng <lipengcheng8@huawei.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:42 -07:00
Shawn Guo
6454504c80 clk: zx296718: export I2S mux clocks
Export I2S mux clocks, so that device tree can refer to them for setting
a better parent clock for I2S work clock.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:42 -07:00
Stefan Agner
22039d150f clk: imx7d: create clocks behind rawnand clock gate
The rawnand clock gate gates two clocks, NAND_USDHC_BUS_CLK_ROOT
and NAND_CLK_ROOT. However, the gate has been in the chain of the
latter only. This does not allow to use the NAND_USDHC_BUS_CLK_ROOT
only, e.g. as required by APBH-Bridge-DMA.

Add new clocks which represent the clock after the gate, and use a
shared clock gate to correctly model the hardware.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Tested-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:41 -07:00
Zhong Kaihua
2a8e44dffb clk: hi3660: Set PPLL2 to 2880M
Set PPLL2 to 2880M. With this patch, we saw better compatibility
on various 1080p HDMI monitors.

Signed-off-by: Zhong Kaihua <zhongkaihua@huawei.com>
Signed-off-by: Zheng Shaobo <zhengshaobo1@huawei.com>
Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
[sboyd@codeaurora.org: Add UL to long number to silence C90
warning]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:41 -07:00
Chen Jun
9357c150e6 clk: hi3660: add clocks for video encoder, decoder and ISP
This patch adds more clocks for hi3660, including:
 - video encoder and decoder
 - ISP (Image Signal Processing)

Signed-off-by: Chen Jun <chenjun14@huawei.com>
Signed-off-by: Zhong Kaihua <zhongkaihua@huawei.com>
Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Reviewed-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 18:00:34 -07:00
Chen Jun
73908acb1e clk: hi3660: fix wrong parent name of clk_mux_sysbus
Parent name of clk_mux_sysbus is not correct. This patch fixes it.

Signed-off-by: Chen Jun <chenjun14@huawei.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 18:00:20 -07:00
Srinivas Kandagatla
a94fafb7be clk: gcc-msm8916: add support to 9.6MHz codec clk
MCLK for internal audio codec is expected to be at 9.6MHz by default.
This patch adds support to 9.6MHz to make the default case possible.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 17:43:49 -07:00
Abhishek Sahu
371a950745 clk: qcom: Add ipq8074 Global Clock Controller support
This patch adds support for the global clock controller found on
the ipq8074 based devices. This includes UART, I2C, SPI etc.

Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 17:29:41 -07:00
Stephen Boyd
4a5aa06960 clk: mvebu: cp110: Minor cleanups
Mark an array of strings static const and remove the dereference
of a function pointer when assigning to the platform driver probe
struct member.

drivers/clk/mvebu/cp110-system-controller.c:89:12:
warning: symbol 'gate_base_names' was not declared. Should it be static?
drivers/clk/mvebu/cp110-system-controller.c:447:18:
error: cannot dereference this type

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 17:14:11 -07:00
Stephen Boyd
4d4f9a6a19 Merge branch 'clk-cp110' of git://git.infradead.org/linux-mvebu into clk-next
Pull improved Marvel Armada 7K/8K cp110 clk support from Gregory CLEMENT:

We got more information about the clock controllers and the clock tree
of the CP110 part that we find in the Marvell Armada 7K/8K SoCs. The
clk driver is modified accordingly from this new information.

* 'clk-cp110' of git://git.infradead.org/linux-mvebu:
  clk: mvebu: cp110: add sdio clock to cp-110 system controller
  clk: mvebu: cp110: introduce a new binding
  clk: mvebu: cp110: do not depend anymore of the *-clock-output-names
  clk: mvebu: cp110: make failure labels more meaningful
2017-06-19 17:06:46 -07:00
Dinh Nguyen
b7f8101d6e clk: socfpga: Fix the smplsel on Arria10 and Stratix10
The smplsel bits for the SDMMC clock on Arria10 and Stratix10 platforms are
offset by 1 additional bit.

Add a new macro SYSMGR_SDMMC_CTRL_SET_AS10 for usage on the Arria10 and
Stratix10 platforms.

Fixes: 5611a5ba8e ("clk: socfpga: update clk.h so for Arria10 platform to use")
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 17:01:55 -07:00
Leo Yan
a925810f6e clk: Hi3660: register fixed_rate_clks with CLK_OF_DECLARE_DRIVER
The timer will register into system at very early phase at kernel boot;
if timer needs to use clock, the clock should be get ready in function
of_clk_init() so later the timer driver probe can retrieve clock
successfully. This is finished in below flow on arm64:

  start_kernel()
    `-> time_init()
          `-> of_clk_init(NULL)    => register timer's clock
          `-> clocksource_probe()  => register timer

On Hi3660 the sp804 timer uses clock "osc32k", this clock is registered
as platform driver rather than CLK_OF_DECLARE_DRIVER method. As result,
sp804 timer probe returns failure due if cannot bind clock properly.

To fix the failure, this patch is to split crgctrl clocks into two
subsets. One part is for fixed_rate_clks which includes pre-defined
fixed rate clocks, and "osc32k" clock is in this category; So we change
their registration to CLK_OF_DECLARE_DRIVER method, as result the clocks
can be registered ahead with function of_clk_init() and timer driver can
bind timer clock successfully; the rest of the crgctrl clocks are still
registered by the probe of the platform driver.

This patch also adds checking for all crgctrl clocks registration and
print out log if any clock has failure.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 16:36:48 -07:00
Konstantin Porotchkin
a45af6d3a9 clk: mvebu: cp110: add sdio clock to cp-110 system controller
This commit updates the CP110 system controller driver to add the
definition for a missing clock.

The SDIO clock is dedicated driving the SDHCI interface and its frequency
is 400MHz (2/5 of PLL source clock).

The SDIO interface should be bound to this clock and not the core clock
as in the older code.
Using the wrong clock lead to a maximum SDHCI frequency of 250 Mhz, while
the HW really supports up to 400 Mhz.

This patch also fixes the NAND clock relationship documentation.

Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
[gregory.clement@free-electrons.com:
- use sdio instead of emmc to name the clock]
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2017-06-19 17:22:23 +02:00
Gregory CLEMENT
5ffeb5f5a7 clk: mvebu: cp110: introduce a new binding
The initial intent when the binding of the cp110 system controller was to
have one flat node. The idea being that what is currently a clock-only
driver in drivers would become a MFD driver, exposing the clock, GPIO and
pinctrl functionality. However, after taking a step back, this would lead
to a messy binding. Indeed, a single node would be a GPIO controller,
clock controller, pinmux controller, and more.

This patch adopts a more classical solution of a top-level syscon node
with sub-nodes for the individual devices. The main benefit will be to
have each functional block associated to its own sub-node where we can
put its own properties.

The introduction of the Armada 7K/8K is still in the early stage so the
plan is to remove the old binding. However, we don't want to break the
device tree compatibility for the few devices already in the field. For
this we still keep the support of the legacy compatible string with a big
warning in the kernel about updating the device tree.

Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2017-06-19 17:22:22 +02:00
Gregory CLEMENT
f5667274ba clk: mvebu: cp110: do not depend anymore of the *-clock-output-names
Using the *-clock-output-names property was a convenient way to have a
unique name for each clock even when there are multiple cp110 blocks
as we can find on Armada 8K.

However it has some drawbacks: the main one being a stronger link than
necessary between the driver and the device tree. For example the clock
name can't be changed, removed or moved. It is still the early stage of
introduction of the Armada 7K/8K and the hardware is still not totally
documented, especially for the clock part. By removing the use of
*-clock-output-names it will be easier to add new clocks without breaking
the compatibility.

The name of each clock is now created by using its physical address as a
prefix (as it was done for the platform device names). Thanks to this we
have an automatic way to compute a unique name.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2017-06-19 17:22:21 +02:00
Stephen Boyd
4dea04c1f1 * Expose more clock gate on meson8 (SAR ADC, RNG, USB, SDIO, ETH)
* Add new compatible to the meson8 clock controller for meson8b
 * Add missing parents to gxbb clk81
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJZRDQVAAoJEAFRo5MEFpTRaVgQAKqGVc39PNOGuzx8P2pj4H0B
 lhedpQu7XHTGc7/2/b8ezMwzgnlHnFsAJOnzpLj4FbUNbNSlJmJFaBfybbV1cgd+
 MF1cN9D5ssqI5zjkXeIhhZO6ogoe3AUlhjqKJMQfK2jlbQdF9Y9GrCIFFdzj/xC8
 pwI4UxRg1g0SGfsF76IaGWeBsduYr9kzZJ3Xr1zUIi32bn/peTaHL+Ye/tv8ssir
 NPnIXDte8XV+gmlOk0Ir1ELqIt501UfbljKmknU4FtVmOH9B/xkuxxOZU0w0Ia1o
 6uoXKDMVENQO+LFWifdexIKh5MV7fXC1wynYoiqTd0BiOA2vKryTo4lcqPblWA5T
 V95wIqwjsk6+XHl5uEFT7HPm2V5QEmBKzeDA4ng6hlGB7GYxZFhpzZQK4lnNrML0
 pB+crpY9/5lAdQlpC/XMkOHORhJ0862ktT45TplToprowWadnmLZBbHB7QcNe+iH
 z8v26eoh800YTN5KMfiSjPXNRW6GPS8YKJmT/9vx35+ysKFMD2fW2FmM7DL5LN+M
 Bv+fgbJSJ4slniqMzFCEVWfcMESGltAYKM8G2YpPUF1uf99SnRweFwf7tshPSvJ4
 bhvnqUdKsWxMgag3aL2D5eKq+yCRlk6/3zobq5qlCAomr9XDMm97C4CGmFUn40iV
 xiIzVBXoiydjJyaBLSzX
 =0BO9
 -----END PGP SIGNATURE-----

Merge tag 'meson-clk-for-4.13-2' of git://github.com/BayLibre/clk-meson into clk-next

Pull Amlogic clk driver updates from Jerome Brunet:

 * Expose more clock gate on meson8 (SAR ADC, RNG, USB, SDIO, ETH)
 * Add new compatible to the meson8 clock controller for meson8b
 * Add missing parents to gxbb clk81

* tag 'meson-clk-for-4.13-2' of git://github.com/BayLibre/clk-meson:
  clk: meson: gxbb: add all clk81 parents
  clk: meson: meson8b: add compatibles for Meson8 and Meson8m2
  clk: meson8b: export the ethernet gate clock
  clk: meson8b: export the USB clocks
  clk: meson8b: export the gate clock for the HW random number generator
  clk: meson8b: export the SDIO clock
  clk: meson8b: export the SAR ADC clocks
2017-06-16 15:01:46 -07:00
Stephen Boyd
ef748cb39d Merge branch 'for-4.13-ti-clkctrl' of https://github.com/t-kristo/linux-pm into clk-next
* 'for-4.13-ti-clkctrl' of https://github.com/t-kristo/linux-pm:
  clk: ti: omap4: add clkctrl clock data
  dt-bindings: clk: add omap4 clkctrl definitions
  clk: ti: add support for clkctrl clocks
  Documentation: dt-bindings: Add binding documentation for TI clkctrl clocks
2017-06-16 14:52:02 -07:00
Stephen Boyd
4dc6e1a356 clk: sunxi-ng: Staticize ccu_mux_helper_unapply_prediv()
It isn't used outside of this file right now.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-16 14:51:36 -07:00
Stephen Boyd
8a02fcf8a0 Allwinner clock patches for 4.13
Some new clock units are supported, for the display clocks unsed in the
 newer SoCs, and the A83T PRCM.
 
 There is also a bunch of minor fixes for clocks that are not used by
 anyone, and reworks needed by drivers that will land in 4.13.
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJZQY1YAAoJEBx+YmzsjxAgaqkQAIzXNo0oo/M+WWl2BiDBywQT
 saAaquvpFBagelEYA7tN7hkVmbUdemZoYGSjK/FmOxWKDDGYuUphZboBiQ+UGdqf
 5EMS0V+OLjA0EVviBIMm9g1hotPx/RJOyVHW1Whi4HwRwCRHbK7t2wZgZi1Df1+p
 OPSeW+oPPEOOf8V4wI89sh2FXvqF/xY/dRUZKWA/GJNOia7tk3rxCTTA6TMl8W0M
 hBQFMKqzIfruUMIgpKx305Rc5wpZbFz7Vc/XlZCwnmtr3UTHqaQp953LLm5VHUS5
 EfbEibYRcy9ZBFLjciIJofyfO9V7mMrpkEqACG/C64gu4qbxi110mH6grUjGQtxC
 CWStTtwVCHIl16dZe0e0WsxR/ZpXH/Q9DlHmshCGlQxz2d6YKqpimo5ZygIrw6uD
 /TiFvqfoWowwGdI7ghA7FrRHHPW8HCiL7oEft+K06G4kgEo4YN74xI+xcyuAYDph
 z/GLXgJVVOE34iFsd2rndYm857OsaEmyL1XG7NBbnW/g6U4OnhI3aC7JrrEqXdKu
 iFMp80kWymoCujyWnabB7dKQbtuFxiqrCZ6OkqP+VE83Ux5JWQagumunhgr1OTUB
 VJL4PVgaP5lCV74PtUmj/H1HaaQwWxr20xaHI2yOOmCxF7jlWbISjuQI1zb3lyKu
 v9qczQNze3OiLPY14RpW
 =41iN
 -----END PGP SIGNATURE-----

Merge tag 'sunxi-clk-for-4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-next

Pull Allwinner clock patches from Maxime Ripard:

Some new clock units are supported, for the display clocks unsed in the
newer SoCs, and the A83T PRCM.

There is also a bunch of minor fixes for clocks that are not used by
anyone, and reworks needed by drivers that will land in 4.13.

* tag 'sunxi-clk-for-4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: (21 commits)
  clk: sunxi-ng: Move all clock types to a library
  clk: sunxi-ng: a83t: Add support for A83T's PRCM
  dt-bindings: clock: sunxi-ccu: Add compatible string for A83T PRCM
  clk: sunxi-ng: select SUNXI_CCU_MULT for sun8i-a83t
  clk: sunxi-ng: a83t: Fix audio PLL divider offset
  clk: sunxi-ng: a83t: Fix PLL lock status register offset
  clk: sunxi-ng: Add driver for A83T CCU
  clk: sunxi-ng: Support multiple variable pre-dividers
  dt-bindings: clock: sunxi-ccu: Add compatible string for A83T CCU
  clk: sunxi-ng: de2: fix wrong pointer passed to PTR_ERR()
  clk: sunxi-ng: sun5i: Export video PLLs
  clk: sunxi-ng: mux: Re-adjust parent rate
  clk: sunxi-ng: mux: Change pre-divider application function prototype
  clk: sunxi-ng: mux: split out the pre-divider computation code
  clk: sunxi-ng: mux: Don't just rely on the parent for CLK_SET_RATE_PARENT
  clk: sunxi-ng: div: Switch to divider_round_rate
  clk: sunxi-ng: Pass the parent and a pointer to the clocks round rate
  clk: divider: Make divider_round_rate take the parent clock
  clk: sunxi-ng: explicitly include linux/spinlock.h
  clk: sunxi-ng: add support for DE2 CCU
  ...
2017-06-16 14:45:27 -07:00
Jerome Brunet
215c80a7d6 clk: meson: gxbb: add all clk81 parents
Remove the FIXME on clk81 mux and add all the documented parents

Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2017-06-16 18:51:42 +00:00
Jerome Brunet
46460a6be9 Merge branch 'next/headers' into next/drivers 2017-06-16 18:32:36 +00:00
Tero Kristo
1c881b5a4f clk: ti: omap4: add clkctrl clock data
Add data for omap4 clkctrl clocks, and register it within the clkctrl
driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-06-15 10:48:08 +03:00
Tero Kristo
88a172526c clk: ti: add support for clkctrl clocks
Previously, hwmod core has been used for controlling the hwmod level
clocks directly. This has certain drawbacks, like being unable to share
the clocks for multiple users, missing usecounting and generally being
totally incompatible with the common clock framework.

This patch adds support for clkctrl clocks for addressing the above
issues. These support the modulemode handling, which will replace the
direct hwmod clkctrl linkage. Any optional clocks are also supported,
gate, mux and divider.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-06-15 10:47:43 +03:00
Stephen Boyd
9c861f3328 Merge branch 'clk-fixes' into clk-next
* clk-fixes:
  clk: sunxi-ng: a64: Export PLL_PERIPH0 clock for the PRCM
  clk: sunxi-ng: h3: Export PLL_PERIPH0 clock for the PRCM
  dt-bindings: clock: sunxi-ccu: Add pll-periph to PRCM's needed clocks
  clk: sunxi-ng: enable SUNXI_CCU_MP for PRCM
  clk: sunxi-ng: v3s: Fix usb otg device reset bit
  clk: sunxi-ng: a31: Correct lcd1-ch1 clock register offset
2017-06-14 16:48:21 -07:00
Stephen Boyd
949bdfed4b Allwinner clock fixes for 4.12
Some fixes that fix some bindings that went in 4.12, fix a few reset and
 clock offsets and a build error fix
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJZQYutAAoJEBx+YmzsjxAglWMQALkuMBskgMNE78L9M3kgNoOs
 e44VWQLI0K0fOHyrnG1Y8wGy8pzTFXVhk13M8eJM9ELeVwN2hnwplcwooxt/I/Og
 9B95qjDFSD4yTsE0SdcyT2KB6NXX6qrh/Wv5Q4ixi1vr09DGZ52jdbug+h0fLZxM
 e1akTgv6oIQRdr1S4WykxnDDhNvooNV9Qgn4zKObwP2euTuRlllhPt+dj8rvgJzh
 z23m6b296MbYh0hb2t0uqocQwkyOVHa9rtdCTVJFPaOeb+kjxl5NuFZzG/hrBRUm
 +LbXwy0acst5SAdDDPGEYTnxyREB+vVYKF22i2+jSf3vTxRWZrZQkPlSs+0LtMLZ
 LtLPUIdwFWdps/kY1IFjt0UeBw6mnv3LCv1dSciazRZDKexvzrWaNEZ942oS0Iqw
 N7tltUEf4UJFZsgCY+yY+C4WL0QXsWtmVKFJDYtr2/yhgC1SpDNZP20DomwVMZ6G
 i7SP+5uyCf7TNRXvckTfz3q0747f1V0yD9a0vR/cR5+TCmKChLIUava95/07qvy8
 +AbSz9g2n7sKZTn+z3UUDuln9XTXGcy29SXigSXneeiFV1tjHUssZueLPvb/4EA9
 LlNMr2JWG7Ois6H655512K6fvMUlqNvWpbdfnB45raPLU7AGa1xc95QXo7fMcfo/
 6wxUN+7nhPDO8AXZmc7w
 =G33o
 -----END PGP SIGNATURE-----

Merge tag 'sunxi-clk-fixes-for-4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-fixes

Allwinner clock fixes for 4.12

Some fixes that fix some bindings that went in 4.12, fix a few reset and
clock offsets and a build error fix

* tag 'sunxi-clk-fixes-for-4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: a64: Export PLL_PERIPH0 clock for the PRCM
  clk: sunxi-ng: h3: Export PLL_PERIPH0 clock for the PRCM
  dt-bindings: clock: sunxi-ccu: Add pll-periph to PRCM's needed clocks
  clk: sunxi-ng: enable SUNXI_CCU_MP for PRCM
  clk: sunxi-ng: v3s: Fix usb otg device reset bit
  clk: sunxi-ng: a31: Correct lcd1-ch1 clock register offset
2017-06-14 16:48:03 -07:00
Stephen Boyd
7f274d54bb clk/samsung updates for 4.13
- conversion to the clk_hw API
  - definitions and fixes of exynos5420 SoC audio subsystem
    related clocks
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABCAAGBQJZOpzhAAoJEE1bIKeAnHqLPFsP/jh9z5A1eq+rlB3ivWW8OByi
 4iANs6Gd9Tnw7MNF46XV6qPHmj+9cEe1ntT/6lVs9Hlz67HwEnWuMc8dgtU6YU7d
 A7Vzx+fMpE/UwFISLhqMjn5Djh13KP4wuPYiHaJKS+00JNEfT/IsvL6kZPS5I2bZ
 teoeWzD1vOnn8QXxSnJeCCkmS91zVq5Sxyrge9Lui0gLMN+5wVxY1VTiw7erL9hi
 jDL6qSRvcJfG1lruGD9No5MkI0kBXiVgqMHi1b2mTYnUS2NUQeAhCfGsvkO71ZU7
 YjDSAOHYTccIdWHs6X4aIvzeVLjuHMVsnnXErDjI388POOQ3BCQ0JE2FDkp68UrM
 DNGQFaKE528mxOL819aH71JQ5qj1kB9Upq7NUSC6roPbahiPv1tdx9dzX2vgGslM
 pW+lXR6ysnsEYsE8HsCsOti4jpVSG6iWYyffI6GMGHVqRiDUY9d6cxHgj/Qx3YFR
 9a7QmehnmSSzJK9sC1acD6e/U1YhcZYKMmb4ygtjFP/w2N2pwNXTgEw74UmXS/Mg
 /ydVbcwJh6spaN85wXKer5lrZNio+gHDj4B+Vwnfo8yB2GW2akHYGW5cNkGeGac6
 7ysI0wp7l9AuofzmovtiPw0pvz0p41rJO2LvIOvvsGeo6i5OOZBke7aAxe7lfg8G
 hoXF2gS+r0wg/C3ljj4z
 =2bgV
 -----END PGP SIGNATURE-----

Merge tag 'clk-v4.13-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk into clk-next

Pull samsung clk driver updates from Sylwester Nawrocki

 - conversion to the clk_hw API
 - definitions and fixes of exynos5420 SoC audio subsystem
   related clocks

* tag 'clk-v4.13-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk:
  clk: samsung: exynos542x: Add EPLL rate table
  clk: samsung: Add missing exynos5420 audio related clocks
  clk: samsung: Add enable/disable operation for PLL36XX clocks
  clk: samsung: s5pv210-audss: Convert to the new clk_hw API
  clk: samsung: exynos-clkout: Convert to the new clk_hw API
  clk: samsung: exynos-audss: Convert to the new clk_hw API
  clk: samsung: Convert common drivers to the new clk_hw API
  clk: samsung: Add local variable to match its purpose
  clk: samsung: Remove dead code
2017-06-14 10:36:30 -07:00
Stephen Boyd
c96da4dd39 One new clock controller for the rk3128 soc, a fixup for the rk3228 cpuclk
table and the usual bunch of some new clock-ids and some clocks marked as
 critical.
 -----BEGIN PGP SIGNATURE-----
 
 iQFEBAABCAAuFiEE7v+35S2Q1vLNA3Lx86Z5yZzRHYEFAlk5xMgQHGhlaWtvQHNu
 dGVjaC5kZQAKCRDzpnnJnNEdgQhdCACyqXbTUEGQDaqKa40f0IPOQCPZ31XYuz8t
 3kQRV08ZkBQlI0tAKgxS4+tTERtpWBA3PjIlnZQ/VRogQsiJpWj6//98Z8jJ9oEx
 2lsKTw3XAb/BVsvW4Awi7VbStt5LNxRxwuIU4uXgHaapTi7wQrqAlam+2iXNOW7h
 05/piVKlKOyS52009UeiO3bzFojiTlElC1JQPqnVA65KxqhYvb/9rt3hn8Y8ZqF1
 KuLibE/AC5eDX7XaCFe+a7dbJpA6b+ciHg24jk+BMuksy53yYbngLbDwlOs7YFjo
 PjFgbdsJw25uE2i0ZwtarAOJoLOtBJiSNib6FJCmC6yHLy5Sc8l/
 =kKnC
 -----END PGP SIGNATURE-----

Merge tag 'v4.13-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next

Pull rockchip clk driver updates from Heiko Stuebner:

One new clock controller for the rk3128 soc, a fixup for the rk3228 cpuclk
table and the usual bunch of some new clock-ids and some clocks marked as
critical.

* tag 'v4.13-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  clk: rockchip: mark some special clk as critical on rk3368
  clk: rockchip: mark noc and some special clk as critical on rk3288
  clk: rockchip: mark noc and some special clk as critical on rk3228
  clk: rockchip: mark pclk_ddrupctl as critical_clock on rk3036
  clk: rockchip: add clock controller for rk3128
  dt-bindings: add bindings for rk3128 clock controller
  clk: rockchip: export more rk3228 clocks ids
  clk: rockchip: add ids for rk3399 testclks used for camera handling
  clk: rockchip: add dt-binding header for rk3128
  clk: rockchip: fix up the RK3228 clk cpu setting table
  clk: rockchip: add clock-ids for more rk3228 clocks
  clk: rockchip: add ids for camera on rk3399
2017-06-14 10:33:04 -07:00
Tero Kristo
b745c0794e clk: keystone: Add sci-clk driver support
In K2G, the clock handling is done through firmware executing on a
separate core. Linux kernel needs to communicate to the firmware
through TI system control interface to access any power management
related resources, including clocks.

The keystone sci-clk driver does this, by communicating to the
firmware through the TI SCI driver. The driver adds support for
registering clocks through DT, and basic required clock operations
like prepare/get_rate, etc.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
[sboyd@codeaurora.org: Make ti_sci_init_clocks() static]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-14 09:05:07 -07:00
Martin Blumenstingl
855f06a100 clk: meson: meson8b: add compatibles for Meson8 and Meson8m2
The clock controller on Meson8, Meson8b and Meson8m2 is very similar
based on the code from the Amlogic GPL kernel sources. Add separate
compatibles for each SoC to make sure that we can easily implement
all the small differences for each SoC later on.

In general the Meson8 and Meson8m2 seem to be almost identical as they
even share the same mach-meson8 directory in Amlogic's GPL kernel
sources.
The main clocks on Meson8, Meson8b and Meson8m2 are very similar,
because they are all using the same PLL values, 90% of the clock gates
are the same (the actual diffstat of the mach-meson8/clock.c and
mach-meson8b/clock.c files is around 30 to 40 lines, when excluding
all commented out code).
The difference between the Meson8 and Meson8b clock gates seem to be:
- Meson8 has AIU_PCLK, HDMI_RX, VCLK2_ENCT, VCLK2_ENCL, UART3,
  CSI_DIG_CLKIN gates which don't seem to be available on Meson8b
- the gate on Meson8 for bit 7 seems to be named "_1200XXX" instead
  of "PERIPHS_TOP" (on Meson8b)
- Meson8b has a SANA gate which doesn't seem to exist on Meson8 (or
  on Meson8 the same bit is used by the UART3 gate in Amlogic's GPL
  kernel sources)
None of these gates is added for now, since it's unclear whether these
definitions are actually correct (the VCLK2_ENCT gate for example is
defined, but only used in some commented block).

The main difference between all three SoCs seem to be the video (VPU)
clocks. Apart from different supported clock rates (according to vpu.c
in mach-meson8 and mach-meson8b from Amlogic's GPL kernel sources) the
most notable difference is that Meson8m2 has a GP_PLL clock and a mux
(probably the same as on the Meson GX SoCs) to support glitch-free
(clock rate) switching.
None of these VPU clocks are not supported by our mainline meson8b
clock driver yet though.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2017-06-12 07:33:08 +00:00
Martin Blumenstingl
c22f06d3c0 clk: meson8b: export the ethernet gate clock
Export the ethernet gate clock to the dt-bindings.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2017-06-12 07:30:45 +00:00
Martin Blumenstingl
677f6af5d6 clk: meson8b: export the USB clocks
Export the USB related clocks (for the USB controller and the USB2 PHYs)
so they can be used in the dt-bindings.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2017-06-12 07:30:44 +00:00
Martin Blumenstingl
06eff6a792 clk: meson8b: export the gate clock for the HW random number generator
This exports the clock so it can be used in the dt-bindings.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2017-06-12 07:30:43 +00:00
Martin Blumenstingl
e2e5f3211f clk: meson8b: export the SDIO clock
Export the SDIO clock so it can be used in the dt-bindings.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2017-06-12 07:30:42 +00:00
Martin Blumenstingl
70ad0d0351 clk: meson8b: export the SAR ADC clocks
Export the clocks for the SAR ADC so they can be used in the
dt-bindings.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2017-06-12 07:30:41 +00:00
Sylwester Nawrocki
9842452acd clk: samsung: exynos542x: Add EPLL rate table
A specific clock rate table is added for EPLL so it is possible
to set frequency of the EPLL output clock as multiple of various
audio sampling rates.

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-06-09 13:12:55 +02:00
Sylwester Nawrocki
8a9cf26e30 clk: samsung: Add missing exynos5420 audio related clocks
This patch adds missing definitions of mux clocks required for using
EPLL as the audio subsystem root clock on exynos5420/exynos5422 SoCs.

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-06-09 13:12:54 +02:00
Sylwester Nawrocki
6edfa11cb3 clk: samsung: Add enable/disable operation for PLL36XX clocks
The existing enable/disable ops for PLL35XX are made more generic
and used also for PLL36XX. This fixes issues in the kernel with
PLL36XX PLLs when the PLL has not been already enabled by bootloader.

Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-06-09 13:12:42 +02:00
Marek Szyprowski
ce3bb8f554 clk: samsung: s5pv210-audss: Convert to the new clk_hw API
Clock providers should use the new struct clk_hw based API, so convert
Samsung S5PV210 Audio Subsystem clock provider to the new approach.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
2017-06-09 12:27:49 +02:00
Marek Szyprowski
cf1395143f clk: samsung: exynos-clkout: Convert to the new clk_hw API
Clock providers should use the new struct clk_hw based API, so convert
Exynos CLKOUT clock provider to the new approach.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-06-09 11:10:47 +02:00
Marek Szyprowski
5b2c3da14c clk: samsung: exynos-audss: Convert to the new clk_hw API
Clock providers should use the new struct clk_hw based API, so convert
Exynos Audio Subsystem clock provider to the new approach.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
2017-06-09 11:10:40 +02:00
Marek Szyprowski
ecb1f1f731 clk: samsung: Convert common drivers to the new clk_hw API
Clock providers should use the new struct clk_hw based API, so convert
Samsung clock providers and their helper functions to the new approach.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-06-07 22:47:57 +02:00
Marek Szyprowski
7288de7451 clk: samsung: Add local variable to match its purpose
Add new variable to avoid using clk pointer for different purposes across
the exynos_register_cpu_clock() function. This will help in future rewrite
for the new clk_hw API.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-06-07 22:47:56 +02:00
Marek Szyprowski
9f57fd6ee4 clk: samsung: Remove dead code
samsung_clk_register_pll2550x() function is not used anymore,
so remove its declaration.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2017-06-07 22:47:55 +02:00
Stephen Boyd
06e226c7fb clk: sunxi-ng: Move all clock types to a library
We've run into kconfig missing dependency errors in the sunxi-ng
code a couple times now. Each time the fix is to find the missing
select statement and add it to the Kconfig entry for a particular
SoC driver. Given that all this code is builtin (non-modular) we
don't need to do this complicated dependency tracking in Kconfig.
Instead we can move all the "library"ish code to be compiled as
lib-y instead of obj-y, let the linker throw away unused code in
the resulting vmlinux, and drop all the Kconfig stuff we use to
track clock types.

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
[Maxime: added lib.a to obj-y, added the comment]
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-06-07 15:33:39 +02:00
Chen-Yu Tsai
5a90c14c0b clk: sunxi-ng: a83t: Add support for A83T's PRCM
The A83T's PRCM has the same set of clocks and resets as the A64.
However, a few dividers are different. And due to the lack of a low
speed 32.768 kHz oscillator, a few of the clock parents are different.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-06-07 15:33:06 +02:00
Arnd Bergmann
b5e53469f3 clk: sunxi-ng: select SUNXI_CCU_MULT for sun8i-a83t
We get a link error when CCU_MULT is not set with the
newly added driver:

drivers/clk/sunxi-ng/ccu-sun8i-a83t.o:(.data.__compound_literal.1+0x4): undefined reference to `ccu_mult_ops'
drivers/clk/sunxi-ng/ccu-sun8i-a83t.o:(.data.__compound_literal.3+0x4): undefined reference to `ccu_mult_ops'

Fixes: 46b492116666 ("clk: sunxi-ng: Add driver for A83T CCU")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2017-06-07 15:32:16 +02:00
Chen-Yu Tsai
f2fe1b640f clk: sunxi-ng: a83t: Fix audio PLL divider offset
The divider of the audio PLL has an offset of 1.
Fix this in the driver.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-06-07 15:32:16 +02:00
Chen-Yu Tsai
faea8b0e33 clk: sunxi-ng: a83t: Fix PLL lock status register offset
The offset for the PLL lock status register was incorrectly set to
0x208, which actually points to an unused register. The correct
register offset is 0x20c.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-06-07 15:32:16 +02:00
Chen-Yu Tsai
05359be117 clk: sunxi-ng: Add driver for A83T CCU
The A83T clock control unit is a hybrid of some new style clock designs
from the A80, and old style layout from the other Allwinner SoCs.

Like the A80, the SoC does not have a low speed 32.768 kHz oscillator.
Unlike the A80, there is no clock input either. The only low speed clock
available is the internal oscillator which runs at around 16 MHz,
divided by 512, yielding a low speed clock around 31.250 kHz.

Also, the MMC2 module clock supports switching to a "new timing" mode.
This mode divides the clock output by half, and disables the CCU based
clock delays. The MMC controller must be configure to the same mode,
and then use its internal clock delays.

This driver does not support runtime switching of the timing modes.
Instead, the new timing mode is enforced at probe time. Consumers can
check which mode is active by trying to get the current phase delay
of the MMC2 phase clocks, which will return -ENOTSUPP if the new
timing mode is active.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-06-07 15:32:16 +02:00
Chen-Yu Tsai
13e0dde8b2 clk: sunxi-ng: Support multiple variable pre-dividers
On the A83T, the AHB1 clock has a shared pre-divider on the two
PLL-PERIPH clock parents. To support such instances of shared
pre-dividers, this patch extends the mux clock type to support
multiple variable pre-dividers.

As the pre-dividers are only used to calculate the rate, but
do not participate in the factorization process, this is fairly
straightforward.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-06-07 15:32:15 +02:00
Wei Yongjun
1f6d640cad clk: sunxi-ng: de2: fix wrong pointer passed to PTR_ERR()
PTR_ERR should access the value just tested by IS_ERR, otherwise
the wrong error code will be returned.

Fixes: b0d9a4bd52bd ("clk: sunxi-ng: add support for DE2 CCU")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-06-07 15:32:14 +02:00
Maxime Ripard
0adad031ef clk: sunxi-ng: sun5i: Export video PLLs
The video PLLs are used directly by the HDMI controller. Export them so
that we can use them in our DT node.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2017-06-07 15:32:14 +02:00
Maxime Ripard
abea24218a clk: sunxi-ng: mux: Re-adjust parent rate
Currently, the parent rate given back to the clock framework in our
request is the original parent rate we calculated before trying to round
the rate of our clock.

This works fine unless our clock also changes its parent rate, in which
case we will simply ignore that change and still use the previous parent
rate.

Create a new function to re-adjust the parent rate to take the pre-dividers
into account, and give that back to the clock framework.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2017-06-07 15:32:14 +02:00
Maxime Ripard
d754b15951 clk: sunxi-ng: mux: Change pre-divider application function prototype
The current function name is a bit confusing, and doesn't really allow to
create an explicit function to reverse the operation.

We also for now change the parent rate through a pointer, while we don't
return anything.

In order to be less confusing, and easier to use for downstream users,
change the function name to something hopefully clearer, and return the
adjusted rate instead of changing the pointer.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2017-06-07 15:32:13 +02:00
Maxime Ripard
ea8edcded5 clk: sunxi-ng: mux: split out the pre-divider computation code
The pre-divider retrieval code was merged into the function to apply the
current pre-divider onto the parent clock rate so that we can use that
adjusted value to do our factors computation.

However, since we'll need to do the reverse operation, we need to split out
that code into a function that will be shared.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2017-06-07 15:32:13 +02:00
Maxime Ripard
73e3e04fc0 clk: sunxi-ng: mux: Don't just rely on the parent for CLK_SET_RATE_PARENT
The current code only rely on the parent to change its rate in the case
where CLK_SET_RATE_PARENT is set.

However, some clock rates might be obtained only through a modification of
the parent and the clock divider. Just rely on the round rate of the clocks
to give us the best computation that might be achieved for a given rate.

round_rate functions now need to honor CLK_SET_RATE_PARENT, but either the
functions already do that if they modify the parent, or don't modify the
praents at all.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2017-06-07 15:32:13 +02:00
Maxime Ripard
e69b2afa87 clk: sunxi-ng: div: Switch to divider_round_rate
divider_round_rate_parent already evaluates changing the parent rate if
CLK_SET_RATE_PARENT is set. Now that we can do that on muxes too, let's
just use it.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2017-06-07 15:32:13 +02:00
Maxime Ripard
10a8d9b906 clk: sunxi-ng: Pass the parent and a pointer to the clocks round rate
The clocks might need to modify their parent clocks. In order to make that
possible, give them access to the parent clock being evaluated, and to a
pointer to the parent rate so that they can modify it if needed.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2017-06-07 15:32:13 +02:00
Maxime Ripard
22833a9165 clk: divider: Make divider_round_rate take the parent clock
So far, divider_round_rate only considers the parent clock returned by
clk_hw_get_parent.

This works fine on clocks that have a single parents, this doesn't work on
muxes, since we will only consider the first parent, while other parents
may totally be able to provide a better combination.

Clocks in that case cannot use divider_round_rate, so would have to come up
with a very similar logic to work around it. Instead of having to do
something like this, and duplicate that logic everywhere, create a
divider_round_rate parent to allow caller to give an additional parameter
for the parent clock to consider.

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
2017-06-07 15:32:12 +02:00
Tobias Klauser
b042e42fee clk: sunxi-ng: explicitly include linux/spinlock.h
ccu_reset.h and ccu_reset.c use spinlock_t and associated functions but
rely on implict inclusion of linux/spinlock.h which means that changes
in other headers could break the build. Thus, add an explicit include.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-06-07 15:32:12 +02:00
Icenowy Zheng
763c5bd045 clk: sunxi-ng: add support for DE2 CCU
The "Display Engine 2.0" in Allwinner newer SoCs contains a clock
management unit for its subunits, like the DE CCU in A80.

Add a sunxi-ng style driver for it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-06-07 15:32:12 +02:00
Fabio Estevam
b608a89221 clk: imx7d: Fix the DDR PLL enable bit
Commit ad14972422 ("clk: imx7d: Fix the powerdown bit location
of PLL DDR") used the incorrect bit for the IMX_PLLV3_DDR_IMX7 case.

Fix it accordingly to avoid a kernel hang.

Reported-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-06 17:42:41 -07:00
Alexandre Belloni
4a5f06a01c clk: at91: fix clk-generated compilation
Fix missing }

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-05 12:56:47 -07:00
Linus Walleij
cfe76a28e3 clk: versatile: delete old RealView clock implementation
The old RealView clock implementation is not used anymore
(nothing in the kernel calls realview_clk_init()) as we have
moved all clocks over to device tree. Delete it.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-02 16:27:17 -07:00
Phil Elwell
3542976d85 clk: bcm2835: Minimise clock jitter for PCM clock
Fractional clock dividers generate accurate average frequencies but
with jitter, particularly when the integer divisor is small.

Introduce a new metric of clock accuracy to penalise clocks with a good
average but worse jitter compared to clocks with an average which is no
better but with lower jitter. The metric is the ideal rate minus the
worse deviation from that ideal using the nearest integer divisors.

Use this metric for parent selection for clocks requiring low jitter
(currently just PCM).

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-02 15:42:21 -07:00
Phil Elwell
8c0de581c4 clk: bcm2835: Limit PCM clock to OSC and PLLD_PER
Restrict clock sources for the PCM peripheral to the oscillator and
PLLD_PER because other source may have varying rates or be switched off.
Prevent other sources from being selected by replacing their names in
the list of potential parents with dummy entries (entry index is
significant).

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-02 15:42:19 -07:00
Phil Elwell
e45098d703 clk: bcm2835: Correct the prediv logic
If a clock has the prediv flag set, both the integer and fractional
parts must be scaled when calculating the resulting frequency.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-02 15:41:49 -07:00
Stephen Boyd
887541159c Merge branch 'clk-bulk-get' into clk-next
* clk-bulk-get:
  clk: add managed version of clk_bulk_get
  clk: add clk_bulk_get accessories
2017-06-02 15:39:32 -07:00
Dong Aisheng
618aee02e2 clk: add managed version of clk_bulk_get
This patch introduces the managed version of clk_bulk_get.

Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Anson Huang <anson.huang@nxp.com>
Cc: Robin Gong <yibin.gong@nxp.com>
Cc: Bai Ping <ping.bai@nxp.com>
Cc: Leonard Crestez <leonard.crestez@nxp.com>
Cc: Octavian Purdila <octavian.purdila@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-02 15:37:49 -07:00
Dong Aisheng
266e4e9d91 clk: add clk_bulk_get accessories
These helper function allows drivers to get several clk consumers in
one operation. If any of the clk cannot be acquired then any clks
that were got will be put before returning to the caller.

This can relieve the driver owners' life who needs to handle many clocks,
as well as each clock error reporting.

Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Anson Huang <anson.huang@nxp.com>
Cc: Robin Gong <yibin.gong@nxp.com>
Cc: Bai Ping <ping.bai@nxp.com>
Cc: Leonard Crestez <leonard.crestez@nxp.com>
Cc: Octavian Purdila <octavian.purdila@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-02 15:37:45 -07:00
Stephen Boyd
c3c4cb8d62 clk: meson-gxbb: Add const to some parent name arrays
These can be marked as const * const.

Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-02 10:57:50 -07:00