Commit Graph

134 Commits

Author SHA1 Message Date
Stephen Boyd
ff060019f4 Merge branches 'clk-stm32f4', 'clk-tegra', 'clk-at91', 'clk-sifive-fu540' and 'clk-spdx' into clk-next
- Support for STM32F769
 - Rework AT91 sckc DT bindings
 - Fix slow RC oscillator issue on sama5d3
 - AT91 sam9x60 PMC support
 - SiFive FU540 PRCI and PLL support

* clk-stm32f4:
  clk: stm32mp1: Add ddrperfm clock
  clk: stm32: Introduce clocks of STM32F769 board

* clk-tegra:
  clk: tegra: divider: Mark Memory Controller clock as read-only
  clk: tegra: emc: Replace BUG() with WARN_ONCE()
  clk: tegra: emc: Fix EMC max-rate clamping
  clk: tegra: emc: Support multiple RAM codes
  clk: tegra: emc: Don't enable EMC clock manually
  clk: tegra124: Remove lock-enable bit from PLLM
  clk: tegra: Fix PLLM programming on Tegra124+ when PMC overrides divider
  clk: tegra: Don't enable already enabled PLLs

* clk-at91:
  clk: at91: Mark struct clk_range as const
  clk: at91: add sam9x60 pmc driver
  dt-bindings: clk: at91: add bindings for SAM9X60 pmc
  clk: at91: add sam9x60 PLL driver
  clk: at91: master: Add sam9x60 support
  clk: at91: usb: Add sam9x60 support
  clk: at91: allow configuring generated PCR layout
  clk: at91: allow configuring peripheral PCR layout
  clk: at91: sckc: handle different RC startup time
  clk: at91: modernize sckc binding
  dt-bindings: clock: at91: new sckc bindings

* clk-sifive-fu540:
  clk: sifive: add a driver for the SiFive FU540 PRCI IP block
  clk: analogbits: add Wide-Range PLL library
  dt-bindings: clk: add documentation for the SiFive PRCI driver

* clk-spdx:
  clk: sunxi-ng: Use the correct style for SPDX License Identifier
  clk: sprd: Use the correct style for SPDX License Identifier
  clk: renesas: Use the correct style for SPDX License Identifier
  clk: qcom: Use the correct style for SPDX License Identifier
  clk: davinci: Use the correct style for SPDX License Identifier
  clk: actions: Use the correct style for SPDX License Identifier
2019-05-07 11:45:29 -07:00
Stephen Boyd
5816b74581 Merge branches 'clk-hisi', 'clk-lochnagar', 'clk-allwinner', 'clk-rockchip' and 'clk-qoriq' into clk-next
- Mark UFS clk as critical on Hi-Silicon hi3660 SoCs
 - Support for Cirrus Logic Lochnagar clks

* clk-hisi:
  clk: hi3660: Mark clk_gate_ufs_subsys as critical

* clk-lochnagar:
  clk: lochnagar: Add support for the Cirrus Logic Lochnagar
  clk: lochnagar: Add initial binding documentation

* clk-allwinner:
  clk: sunxi-ng: sun5i: Export the MBUS clock
  clk: sunxi-ng: a83t: Add pll-video0 as parent of csi-mclk
  clk: sunxi-ng: h6: Allow video & vpu clocks to change parent rate
  clk: sunxi-ng: h6: Preset hdmi-cec clock parent
  clk: sunxi: Add Kconfig options
  clk: sunxi-ng: f1c100s: fix USB PHY gate bit offset
  clk: sunxi-ng: Allow DE clock to set parent rate

* clk-rockchip:
  clk: rockchip: undo several noc and special clocks as critical on rk3288
  clk: rockchip: add a COMPOSITE_DIV_OFFSET clock-type
  clk: rockchip: Turn on "aclk_dmac1" for suspend on rk3288
  clk: rockchip: Limit use of USB PHY clock to USB on rk3288
  clk: rockchip: Fix video codec clocks on rk3288
  clk: rockchip: Make rkpwm a critical clock on rk3288
  clk: rockchip: fix wrong clock definitions for rk3328

* clk-qoriq:
  clk: qoriq: increase array size of cmux_to_group
  dt-bindings: qoriq-clock: Add ls1028a chip compatible string
  clk: qoriq: Add ls1028a clock configuration
  clk: qoriq: add more PLL divider clocks support
  dt-bindings: qoriq-clock: add more PLL divider clocks support
2019-05-07 11:45:13 -07:00
Paul Walmsley
30b8e27e3b clk: sifive: add a driver for the SiFive FU540 PRCI IP block
Add driver code for the SiFive FU540 PRCI IP block.  This IP block
handles reset and clock control for the SiFive FU540 device and
implements SoC-level clock tree controls and dividers.

Based on code written by Wesley Terpstra <wesley@sifive.com>:
999529edf5

Boot and PLL rate change were tested on a SiFive HiFive Unleashed
board.

This version includes several changes requested by Stephen Boyd
<sboyd@kernel.org>.

Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Wesley W. Terpstra <wesley@sifive.com>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Megan Wachs <megan@sifive.com>
Cc: linux-riscv@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-clk@vger.kernel.org
[sboyd@kernel.org: Fix some const and ARRAY_SIZE() issues, make makefile
only descend if CLK_SIFIVE=y]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-05-03 09:20:56 -07:00
Paul Walmsley
7b9487a9a5 clk: analogbits: add Wide-Range PLL library
Add common library code for the Analog Bits Wide-Range PLL (WRPLL) IP
block, as implemented in TSMC CLN28HPC.

There is no bus interface or register target associated with this PLL.
This library is intended to be used by drivers for IP blocks that
expose registers connected to the PLL configuration and status
signals.

Based on code originally written by Wesley Terpstra
<wesley@sifive.com>:
999529edf5

This version incorporates several changes requested by Stephen
Boyd <sboyd@kernel.org>.

Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Wesley Terpstra <wesley@sifive.com>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Megan Wachs <megan@sifive.com>
Cc: linux-clk@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
[sboyd@kernel.org: Fix some const issues]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-05-03 09:20:48 -07:00
Charles Keepax
76c547830b clk: lochnagar: Add support for the Cirrus Logic Lochnagar
Lochnagar is an evaluation and development board for Cirrus
Logic Smart CODEC and Amp devices. It allows the connection of
most Cirrus Logic devices on mini-cards, as well as allowing
connection of various application processor systems to provide a
full evaluation platform. This driver supports the board
controller chip on the Lochnagar board.

The Lochnagar can take several input clocks from the host system,
provides several of its own clock sources, and provides extensive
routing options for those clocks to be supplied to the attached
CODEC/Amp device.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-04-23 14:59:38 -07:00
Maxime Ripard
49c726d55c
clk: sunxi: Add Kconfig options
We used to have a clock framework that isn't really used these days, except
for a few clocks and/or SoCs. Most of the time, the new framework and
drivers (sunxi-ng) will provide everything needed for the customer devices
to operate properly.

Since we're not needing it that much, it might make sense to disable those
drivers, for example when we want to reduce the kernel size. Let's add
options in Kconfig that can be disabled if needed, but are still on by
default to keep the same features in the standard case.

Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-03-21 10:01:54 +01:00
Stephen Boyd
7e2570031a Merge branches 'clk-of-refcount', 'clk-mmio-fixed-clock', 'clk-remove-clps', 'clk-socfpga-parent' and 'clk-struct-size' into clk-next
- Various DT of_node refcount fixes
 - Support for fixed rate clks populated from an MMIO register
 - Remove clps711x driver as the board support is gone

* clk-of-refcount:
  clk: dove: fix refcount leak in dove_clk_init()
  clk: mv98dx3236: fix refcount leak in mv98dx3236_clk_init()
  clk: armada-xp: fix refcount leak in axp_clk_init()
  clk: kirkwood: fix refcount leak in kirkwood_clk_init()
  clk: armada-370: fix refcount leak in a370_clk_init()
  clk: vf610: fix refcount leak in vf610_clocks_init()
  clk: imx7d: fix refcount leak in imx7d_clocks_init()
  clk: imx6sx: fix refcount leak in imx6sx_clocks_init()
  clk: imx6q: fix refcount leak in imx6q_clocks_init()
  clk: samsung: exynos4: fix refcount leak in exynos4_get_xom()
  clk: socfpga: fix refcount leak
  clk: ti: fix refcount leak in ti_dt_clocks_register()
  clk: qoriq: fix refcount leak in clockgen_init()
  clk: highbank: fix refcount leak in hb_clk_init()

* clk-mmio-fixed-clock:
  clk: Add Fixed MMIO clock driver
  dt-bindings: clk: Add bindings for Fixed MMIO clock

* clk-remove-clps:
  clk: clps711x: Remove board support

* clk-socfpga-parent:
  clk: socfpga: Don't have get_parent for single parent ops

* clk-struct-size:
  clk: imx: imx7ulp: use struct_size() in kzalloc()
2019-03-08 10:26:59 -08:00
Jan Kotas
50cc4caf53 clk: Add Fixed MMIO clock driver
This patch adds a driver for Fixed MMIO clock.
The driver reads a clock frequency value from a single 32-bit memory
mapped register and registers it as a fixed rate clock.

It can be enabled with COMMON_CLK_FIXED_MMIO Kconfig option.

Signed-off-by: Jan Kotas <jank@cadence.com>
[sboyd@kernel.org: Make of_fixed_mmio_clk_setup() static, use clk_hw
based APIs]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-01-09 11:41:19 -08:00
Abel Vesa
3d51e4d9de clk: imx: Remove Kconfig duplicate include
Commit d360b130e2 ("clk: imx: Make the i.MX8MQ CCM clock driver
CLK_IMX8MQ dependant") introduced this duplicate and incorrectly ordered
kconfig include.

Fixes: d360b130e2 ("clk: imx: Make the i.MX8MQ CCM clock driver CLK_IMX8MQ dependant")
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-01-09 10:43:41 -08:00
Stephen Boyd
58c05c823b Merge branches 'clk-imx7ulp', 'clk-imx6-fixes', 'clk-imx-fixes', 'clk-imx8qxp' and 'clk-imx8mq' into clk-next
- NXP i.MX7ULP SoC clock support
 - Support for i.MX8QXP SoC clocks
 - Support for NXP i.MX8MQ clock controllers

* clk-imx7ulp:
  clk: imx: add imx7ulp clk driver
  clk: imx: implement new clk_hw based APIs
  clk: imx: make mux parent strings const
  dt-bindings: clock: add imx7ulp clock binding doc
  clk: imx: add imx7ulp composite clk support
  clk: imx: add pfdv2 support
  clk: imx: add pllv4 support
  clk: fractional-divider: add CLK_FRAC_DIVIDER_ZERO_BASED flag support
  clk: imx: add gatable clock divider support

* clk-imx6-fixes:
  clk: imx6q: handle ENET PLL bypass
  clk: imx6q: optionally get CCM inputs via standard clock handles
  clk: imx6q: reset exclusive gates on init

* clk-imx-fixes:
  clk: imx6q: add DCICx clocks gate
  clk: imx6sl: ensure MMDC CH0 handshake is bypassed
  clk: imx7d: remove UART1 clock setting

* clk-imx8qxp:
  clk: imx: add imx8qxp lpcg driver
  clk: imx: add lpcg clock support
  clk: imx: add imx8qxp clk driver
  clk: imx: add scu clock common part
  clk: imx: add configuration option for mmio clks
  dt-bindings: clock: add imx8qxp lpcg clock binding
  dt-bindings: clock: imx8qxp: add SCU clock IDs
  firmware: imx: add pm svc headfile
  dt-bindings: fsl: scu: update power domain binding
  firmware: imx: remove resource id enums
  dt-bindings: imx: add scu resource id headfile

* clk-imx8mq:
  clk: imx: Make the i.MX8MQ CCM clock driver CLK_IMX8MQ dependant
  clk: imx: remove redundant initialization of ret to zero
  clk: imx: Add SCCG PLL type
  clk: imx: Add fractional PLL output clock
  clk: imx: Add clock driver for i.MX8MQ CCM
  clk: imx: Add imx composite clock
  dt-bindings: Add binding for i.MX8MQ CCM
2018-12-14 13:34:47 -08:00
Abel Vesa
d360b130e2 clk: imx: Make the i.MX8MQ CCM clock driver CLK_IMX8MQ dependant
Remove the dependency between the i.MX8MQ CCM clock driver
and the CONFIG_SOC_IMX8MQ and use CONFIG_CLK_IMX8MQ instead.
CONFIG_CLK_IMX8MQ depends on ARCH_MXC && ARM64.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-12-14 12:56:27 -08:00
Aisheng Dong
3a48d918a4 clk: imx: add configuration option for mmio clks
The patch introduces CONFIG_MXC_CLK option for legacy MMIO clocks,
this is required to compile legacy MMIO clock conditionally when adding
SCU based clocks for MX8 platforms later.

Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-12-13 22:12:46 -08:00
Matti Vaittinen
2e62246b08 clk: bd718x7: Initial support for ROHM bd71837/bd71847 PMIC clock
ROHM bd71837 and bd71847 contain 32768Hz clock gate. Support the clock
using generic clock framework. Note, only bd71837 is tested but bd71847
should be identical what comes to clk parts.

Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-12-10 12:44:03 -08:00
Linus Torvalds
519f64bf15 This time it looks like a quieter release cycle in the clk tree. I guess that's
because of summer time holidays/vacations. The biggest change in the diffstat
 is in the Qualcomm clk driver, where they got support for CPUs and handful of
 SoCs. After that, the at91 driver got a major rewrite for newer DT bindings
 that should make things easier going forward and the TI code moved to a
 clockdomain based design. The long tail is mostly small driver updates for
 newer clks and some simpler SoC clock drivers such as the Hisilicon and imx
 support.
 
 In the core framework, we only have two small changes this time. One is a new
 clk API to get all clks for a device with the bulk clk APIs. This allows
 drivers that don't care about doing anything besides turning on all the clks to
 just clk_get() them all and turn them on. The other change is the beginning of
 a way to support save and restore of clk settings in the clk framework. TI is
 the only user right now, but we will want to expand upon this design in the
 future to support more save and restore of clk registers.  At least this gets
 us started and works well enough for one SoC, but there's more work in the
 future.
 
 Core:
  - clk_bulk_get_all() API and friends to get all the clks for a device
  - Basic clk state save/restore hooks
 
 New Drivers:
  - Renesas RZ/A2 (R7S9210) SoC, including early clocks
  - Rensas RZ/G1N (R8A7744) and RZ/G2E (R8A774C0) SoCs
  - Rensas RZ/G2M (r8a774a1) SoC
  - Qualcomm Krait CPU clk support
  - Qualcomm QCS404 GCC support
  - Qualcomm SDM660 GCC support
  - Qualcomm SDM845 camera clock controller
  - Ingenic jz4725b CGU
  - Hisilicon 3670 SoC support
  - TI SCI clks on K3 SoCs
  - iMX6 MMDC clks
  - Reset Controller (RMU) support for Actions Semi Owl S900 and S700 SoCs
 
 Updates:
  - Rework at91 PMC clock driver for new DT bindings
  - Nvidia Tegra clk driver MBIST workaround fix
  - S2RAM support for Marvell mvebu periph clks
  - Use updated printk format for OF node names
  - Fix TI code to only search DT subnodes
  - Various static analysis finds
  - Tag various drivers with SPDX license tags
  - Support dynamic frequency switching (DFS) on qcom SDM845 GCC
  - Only use s2mps11 dt-binding defines instead of redefining them in the driver
  - Add some more missing clks to qcom MSM8996 GCC
  - Quad SPI clks on qcom SDM845
  - Add support for CMT timer clocks on R-Car V3H
  - Add support for SHDI and various timer clocks on R-Car V3M
  - Improve OSC and RCLK (watchdog) handling on R-Car Gen3 SoCs
  - Amlogic clk-pll driver improvements and updates
  - Amlogic axg audio controller system clocks
  - Register Amlogic meson8b clock controller early
  - Add support for SATA and Fine Display Processor (FDP) clocks on R-Car M3-N
  - Consolidation of system suspend related code in Exynos, S5P, S3C SoC clk drivers
  - Fixes for system suspend support on Exynos542x (Odroid boards) and Exynos5433 SoC
  - Remove obsoleted Exynos4212 ISP clock definitions
  - Migrated TI am3/4/5 and dra7 SoCs to clockdomain based design
  - TI RTC+DDR sleep mode support for clock save/restore
  - Allwinner A64 display engine support and fixes
  - Allwinner A83t display engine support and fixes
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "This time it looks like a quieter release cycle in the clk tree. I
  guess that's because of summer time holidays/vacations. The biggest
  change in the diffstat is in the Qualcomm clk driver, where they got
  support for CPUs and handful of SoCs. After that, the at91 driver got
  a major rewrite for newer DT bindings that should make things easier
  going forward and the TI code moved to a clockdomain based design.

  The long tail is mostly small driver updates for newer clks and some
  simpler SoC clock drivers such as the Hisilicon and imx support.

  In the core framework, we only have two small changes this time.

  One is a new clk API to get all clks for a device with the bulk clk
  APIs. This allows drivers that don't care about doing anything besides
  turning on all the clks to just clk_get() them all and turn them on.

  The other change is the beginning of a way to support save and restore
  of clk settings in the clk framework. TI is the only user right now,
  but we will want to expand upon this design in the future to support
  more save and restore of clk registers. At least this gets us started
  and works well enough for one SoC, but there's more work in the
  future.

  Core:
   - clk_bulk_get_all() API and friends to get all the clks for a device
   - Basic clk state save/restore hooks

  New Drivers:
   - Renesas RZ/A2 (R7S9210) SoC, including early clocks
   - Rensas RZ/G1N (R8A7744) and RZ/G2E (R8A774C0) SoCs
   - Rensas RZ/G2M (r8a774a1) SoC
   - Qualcomm Krait CPU clk support
   - Qualcomm QCS404 GCC support
   - Qualcomm SDM660 GCC support
   - Qualcomm SDM845 camera clock controller
   - Ingenic jz4725b CGU
   - Hisilicon 3670 SoC support
   - TI SCI clks on K3 SoCs
   - iMX6 MMDC clks
   - Reset Controller (RMU) support for Actions Semi Owl S900 and S700 SoCs

  Updates:
   - Rework at91 PMC clock driver for new DT bindings
   - Nvidia Tegra clk driver MBIST workaround fix
   - S2RAM support for Marvell mvebu periph clks
   - Use updated printk format for OF node names
   - Fix TI code to only search DT subnodes
   - Various static analysis finds
   - Tag various drivers with SPDX license tags
   - Support dynamic frequency switching (DFS) on qcom SDM845 GCC
   - Only use s2mps11 dt-binding defines instead of redefining them in the driver
   - Add some more missing clks to qcom MSM8996 GCC
   - Quad SPI clks on qcom SDM845
   - Add support for CMT timer clocks on R-Car V3H
   - Add support for SHDI and various timer clocks on R-Car V3M
   - Improve OSC and RCLK (watchdog) handling on R-Car Gen3 SoCs
   - Amlogic clk-pll driver improvements and updates
   - Amlogic axg audio controller system clocks
   - Register Amlogic meson8b clock controller early
   - Add support for SATA and Fine Display Processor (FDP) clocks on R-Car M3-N
   - Consolidation of system suspend related code in Exynos, S5P, S3C SoC clk drivers
   - Fixes for system suspend support on Exynos542x (Odroid boards) and Exynos5433 SoC
   - Remove obsoleted Exynos4212 ISP clock definitions
   - Migrated TI am3/4/5 and dra7 SoCs to clockdomain based design
   - TI RTC+DDR sleep mode support for clock save/restore
   - Allwinner A64 display engine support and fixes
   - Allwinner A83t display engine support and fixes"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (186 commits)
  clk: qcom: Remove unused arrays in SDM845 GCC
  clk: fixed-rate: fix of_node_get-put imbalance
  clk: s2mps11: Add used attribute to s2mps11_dt_match
  clk: qcom: gcc-sdm660: Add MODULE_LICENSE
  clk: qcom: Add safe switch hook for krait mux clocks
  dt-bindings: clock: Document qcom,krait-cc
  clk: qcom: Add Krait clock controller driver
  dt-bindings: arm: Document qcom,kpss-gcc
  clk: qcom: Add KPSS ACC/GCC driver
  clk: qcom: Add support for Krait clocks
  clk: qcom: Add IPQ806X's HFPLLs
  clk: qcom: Add MSM8960/APQ8064's HFPLLs
  dt-bindings: clock: Document qcom,hfpll
  clk: qcom: Add HFPLL driver
  clk: qcom: Add support for High-Frequency PLLs (HFPLLs)
  ARM: Add Krait L2 register accessor functions
  clk: imx6q: add mmdc0 ipg clock
  clk: imx6sl: add mmdc ipg clocks
  clk: imx6sll: add mmdc1 ipg clock
  clk: imx6sx: add mmdc1 ipg clock
  ...
2018-10-31 11:08:30 -07:00
Paul Cercueil
0880fb8660 clk: ingenic: Add proper Kconfig entries
Previously, the CGU code corresponding to the SoC for which we're
compiling the kernel was the only one enabled, which made it impossible
to build one kernel that supports them all.

Now, it is possible to select more than one SoC to support.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-10-16 15:19:15 -07:00
Jolly Shah
3fde0e16d0 drivers: clk: Add ZynqMP clock driver
This patch adds CCF compliant clock driver for ZynqMP.
Clock driver queries supported clock information from
firmware and regiters pll and output clocks with CCF.

Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Tejas Patel <tejasp@xilinx.com>
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Acked-by: Olof Johansson <olof@lixom.net>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-10-09 13:29:19 +02:00
Daniel Mack
33f5104624 clk: Add driver for MAX9485
This patch adds a driver for MAX9485, a programmable audio clock generator.

The device requires a 27.000 MHz clock input. It can provide a gated
buffered output of its input clock and two gated outputs of a PLL that can
generate one out of 16 discrete frequencies. There is only one PLL however,
so the two gated outputs will always have the same frequency but they can
be switched individually.

The driver for this device exposes 4 clocks in total:

- MAX9485_MCLKOUT:      A gated, buffered output of the input clock
- MAX9485_CLKOUT:       A PLL that can be configured to 16 different
			discrete frequencies
- MAX9485_CLKOUT[1,2]:  Two gated outputs for MAX9485_CLKOUT

Some PLL output frequencies can be achieved with different register
settings. The driver will select the one with lowest jitter in such cases.

Signed-off-by: Daniel Mack <daniel@zonque.org>
[sboyd@kernel.org: Use local variable for val in max9485_clkout_recalc_rate()
and shorten line of max9485_of_clk_get()]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-07-06 13:44:06 -07:00
Linus Torvalds
6419945e33 This time we have a good set of changes to the core framework that do some
general cleanups, but nothing too major. The majority of the diff goes to
 two SoCs, Actions Semi and Qualcomm. A brand new driver is introduced for
 Actions Semi so it takes up some lines to add all the different types, and
 the Qualcomm diff is there because we add support for two SoCs and it's quite
 a bit of data.
 
 Otherwise the big driver updates are on TI Davinci and Amlogic platforms. And
 then the long tail of driver updates for various fixes and stuff follows
 after that.
 
 Core:
  - debugfs cleanups removing error checking and an unused provider API
  - Removal of a clk init typedef that isn't used
  - Usage of match_string() to simplify parent string name matching
  - OF clk helpers moved to their own file (linux/of_clk.h)
  - Make clk warnings more readable across kernel versions
 
 New Drivers:
  - Qualcomm SDM845 GCC and Video clk controllers
  - Qualcomm MSM8998 GCC
  - Actions Semi S900 SoC support
  - Nuvoton npcm750 microcontroller clks
  - Amlogic axg AO clock controller
 
 Removed Drivers:
  - Deprecated Rockchip clk-gate driver
 
 Updates:
  - debugfs functions stopped checking return values
  - Support for the MSIOF module clocks on Rensas R-Car M3-N
  - Support for the new Rensas RZ/G1C and R-Car E3 SoCs
  - Qualcomm GDSC, RCG, and PLL updates for clk changes in new SoCs
  - Berlin and Amlogic SPDX tagging
  - Usage of of_clk_get_parent_count() in more places
  - Proper implementation of the CDEV1/2 clocks on Tegra20
  - Allwinner H6 PRCM clock support and R40 EMAC support
  - Add critical flag to meson8b's fdiv2 as temporary fixup for ethernet
  - Round closest support for meson's mpll driver
  - Support for meson8b nand clocks and gxbb video decoder clocks
  - Mediatek mali clks
  - STM32MP1 fixes
  - Uniphier LD11/LD20 stream demux system clock
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "This time we have a good set of changes to the core framework that do
  some general cleanups, but nothing too major. The majority of the diff
  goes to two SoCs, Actions Semi and Qualcomm. A brand new driver is
  introduced for Actions Semi so it takes up some lines to add all the
  different types, and the Qualcomm diff is there because we add support
  for two SoCs and it's quite a bit of data.

  Otherwise the big driver updates are on TI Davinci and Amlogic
  platforms. And then the long tail of driver updates for various fixes
  and stuff follows after that.

  Core:
   - debugfs cleanups removing error checking and an unused provider API
   - Removal of a clk init typedef that isn't used
   - Usage of match_string() to simplify parent string name matching
   - OF clk helpers moved to their own file (linux/of_clk.h)
   - Make clk warnings more readable across kernel versions

  New Drivers:
   - Qualcomm SDM845 GCC and Video clk controllers
   - Qualcomm MSM8998 GCC
   - Actions Semi S900 SoC support
   - Nuvoton npcm750 microcontroller clks
   - Amlogic axg AO clock controller

  Removed Drivers:
   - Deprecated Rockchip clk-gate driver

  Updates:
   - debugfs functions stopped checking return values
   - Support for the MSIOF module clocks on Rensas R-Car M3-N
   - Support for the new Rensas RZ/G1C and R-Car E3 SoCs
   - Qualcomm GDSC, RCG, and PLL updates for clk changes in new SoCs
   - Berlin and Amlogic SPDX tagging
   - Usage of of_clk_get_parent_count() in more places
   - Proper implementation of the CDEV1/2 clocks on Tegra20
   - Allwinner H6 PRCM clock support and R40 EMAC support
   - Add critical flag to meson8b's fdiv2 as temporary fixup for ethernet
   - Round closest support for meson's mpll driver
   - Support for meson8b nand clocks and gxbb video decoder clocks
   - Mediatek mali clks
   - STM32MP1 fixes
   - Uniphier LD11/LD20 stream demux system clock"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (134 commits)
  clk: qcom: Export clk_fabia_pll_configure()
  clk: bcm: Update and add Stingray clock entries
  dt-bindings: clk: Update Stingray binding doc
  clk-si544: Properly round requested frequency to nearest match
  clk: ingenic: jz4770: Add 150us delay after enabling VPU clock
  clk: ingenic: jz4770: Enable power of AHB1 bus after ungating VPU clock
  clk: ingenic: jz4770: Modify C1CLK clock to disable CPU clock stop on idle
  clk: ingenic: jz4770: Change OTG from custom to standard gated clock
  clk: ingenic: Support specifying "wait for clock stable" delay
  clk: ingenic: Add support for clocks whose gate bit is inverted
  clk: use match_string() helper
  clk: bcm2835: use match_string() helper
  clk: Return void from debug_init op
  clk: remove clk_debugfs_add_file()
  clk: tegra: no need to check return value of debugfs_create functions
  clk: davinci: no need to check return value of debugfs_create functions
  clk: bcm2835: no need to check return value of debugfs_create functions
  clk: no need to check return value of debugfs_create functions
  clk: imx6: add EPIT clock support
  clk: mvebu: use correct bit for 98DX3236 NAND
  ...
2018-06-09 12:06:24 -07:00
Stephen Boyd
43705f5294 Merge branch 'clk-actions' into clk-next
* clk-actions:
  clk: actions: Add S900 SoC clock support
  clk: actions: Add pll clock support
  clk: actions: Add composite clock support
  clk: actions: Add fixed factor clock support
  clk: actions: Add factor clock support
  clk: actions: Add divider clock support
  clk: actions: Add mux clock support
  clk: actions: Add gate clock support
  clk: actions: Add common clock driver support
  dt-bindings: clock: Add Actions S900 clock bindings
2018-06-04 12:27:02 -07:00
Gabriel Fernandez
9a160601f3 clk: stm32: fix: stm32 clock drivers are not compiled by default
Clock driver is mandatory if the machine is selected.
Then don't use 'bool' and 'depends on' commands, but 'def_bool'
with the machine(s).

Fixes: da32d3539f ("clk: stm32: add configuration flags for each of the stm32 drivers")
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-05-15 15:47:03 -07:00
Linus Torvalds
ca4e7c5120 The large diff this time around is from the addition of a new clk driver
for the TI Davinci family of SoCs. So far those clks have been supported
 with a custom implementation of the clk API in the arch port instead of in
 the CCF. With this driver merged we're one step closer to having a single
 clk API implementation.
 
 The other large diff is from the Amlogic clk driver that underwent some
 major surgery to use regmap. Beyond that, the biggest hitter is Samsung
 which needed some reworks to properly handle clk provider power domains
 and a bunch of PLL rate updates.
 
 The core framework was fairly quiet this round, just getting some cleanups
 and small fixes for some of the more esoteric features. And the usual
 set of driver non-critical fixes, cleanups, and minor additions are here as
 well.
 
 Core:
  - Rejig clk_ops::init() to be a little earlier for phase/accuracy ops
  - debugfs ops macroized to shave some lines of boilerplate code
  - Always calculate the phase instead of caching it in clk_get_phase()
  - More __must_check on bulk clk APIs
 
 New Drivers:
  - TI's Davinci family of SoCs
  - Intel's Stratix10 SoC
  - stm32mp157 SoC
  - Allwinner H6 CCU
  - Silicon Labs SI544 clock generator chip
  - Renesas R-Car M3-N and V3H SoCs
  - i.MX6SLL SoCs
 
 Removed Drivers:
  - ST-Ericsson AB8540/9540
 
 Updates:
  - Mediatek MT2701 and MT7622 audsys support and MT2712 updates
  - STM32F469 DSI and STM32F769 sdmmc2 support
  - GPIO clks can sleep now
  - Spreadtrum SC9860 RTC clks
  - Nvidia Tegra MBIST workarounds and various minor fixes
  - Rockchip phase handling fixes and a memory leak plugged
  - Renesas drivers switch to readl/writel from clk_readl/clk_writel
  - Renesas gained CPU (Z/Z2) and watchdog support
  - Rockchip rk3328 display clks and rk3399 1.6GHz PLL support
  - Qualcomm PM8921 PMIC XO buffers
  - Amlogic migrates to regmap APIs
  - TI Keystone clk latching support
  - Allwinner H3 and H5 video clk fixes
  - Broadcom BCM2835 PLLs needed another bit to enable
  - i.MX6SX CKO mux fix and i.MX7D Video PLL divider fix
  - i.MX6UL/ULL epdc_podf support
  - Hi3798CV200 COMBPHY0 and USB2_OTG_UTMI and phase support for eMMC
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "The large diff this time around is from the addition of a new clk
  driver for the TI Davinci family of SoCs. So far those clks have been
  supported with a custom implementation of the clk API in the arch port
  instead of in the CCF. With this driver merged we're one step closer
  to having a single clk API implementation.

  The other large diff is from the Amlogic clk driver that underwent
  some major surgery to use regmap. Beyond that, the biggest hitter is
  Samsung which needed some reworks to properly handle clk provider
  power domains and a bunch of PLL rate updates.

  The core framework was fairly quiet this round, just getting some
  cleanups and small fixes for some of the more esoteric features. And
  the usual set of driver non-critical fixes, cleanups, and minor
  additions are here as well.

  Core:
   - Rejig clk_ops::init() to be a little earlier for phase/accuracy ops
   - debugfs ops macroized to shave some lines of boilerplate code
   - Always calculate the phase instead of caching it in clk_get_phase()
   - More __must_check on bulk clk APIs

  New Drivers:
   - TI's Davinci family of SoCs
   - Intel's Stratix10 SoC
   - stm32mp157 SoC
   - Allwinner H6 CCU
   - Silicon Labs SI544 clock generator chip
   - Renesas R-Car M3-N and V3H SoCs
   - i.MX6SLL SoCs

  Removed Drivers:
   - ST-Ericsson AB8540/9540

  Updates:
   - Mediatek MT2701 and MT7622 audsys support and MT2712 updates
   - STM32F469 DSI and STM32F769 sdmmc2 support
   - GPIO clks can sleep now
   - Spreadtrum SC9860 RTC clks
   - Nvidia Tegra MBIST workarounds and various minor fixes
   - Rockchip phase handling fixes and a memory leak plugged
   - Renesas drivers switch to readl/writel from clk_readl/clk_writel
   - Renesas gained CPU (Z/Z2) and watchdog support
   - Rockchip rk3328 display clks and rk3399 1.6GHz PLL support
   - Qualcomm PM8921 PMIC XO buffers
   - Amlogic migrates to regmap APIs
   - TI Keystone clk latching support
   - Allwinner H3 and H5 video clk fixes
   - Broadcom BCM2835 PLLs needed another bit to enable
   - i.MX6SX CKO mux fix and i.MX7D Video PLL divider fix
   - i.MX6UL/ULL epdc_podf support
   - Hi3798CV200 COMBPHY0 and USB2_OTG_UTMI and phase support for eMMC"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (233 commits)
  clk: davinci: add a reset lookup table for psc0
  clk: imx: add clock driver for imx6sll
  dt-bindings: imx: update clock doc for imx6sll
  clk: imx: add new gate/gate2 wrapper funtion
  clk: imx: Add CLK_IS_CRITICAL flag for busy divider and busy mux
  clk: cs2000: set pm_ops in hibernate-compatible way
  clk: bcm2835: De-assert/assert PLL reset signal when appropriate
  clk: imx7d: Move clks_init_on before any clock operations
  clk: imx7d: Correct ahb clk parent select
  clk: imx7d: Correct dram pll type
  clk: imx7d: Add USB clock information
  clk: socfpga: stratix10: add clock driver for Stratix10 platform
  dt-bindings: documentation: add clock bindings information for Stratix10
  clk: ti: fix flag space conflict with clkctrl clocks
  clk: uniphier: add additional ethernet clock lines for Pro4
  clk: uniphier: add SATA clock control support
  clk: uniphier: add PCIe clock control support
  clk: Add driver for the si544 clock generator chip
  clk: davinci: Remove redundant dev_err calls
  clk: uniphier: add ethernet clock control support for PXs3
  ...
2018-04-13 15:51:06 -07:00
Manivannan Sadhasivam
3495e29565 clk: actions: Add common clock driver support
Add support for Actions Semi common clock driver with generic structures
and interface functions.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-04-06 14:15:23 -07:00
Stephen Boyd
a83fdfae5a Merge branches 'clk-davinci', 'clk-si544', 'clk-rockchip', 'clk-uniphier' and 'clk-ti-flag-fix' into clk-next
* clk-davinci:
  clk: davinci: Remove redundant dev_err calls
  clk: davinci: cfgchip: Add TI DA8XX USB PHY clocks
  clk: davinci: New driver for TI DA8XX CFGCHIP clocks
  dt-bindings: clock: Add bindings for DA8XX CFGCHIP clocks
  clk: davinci: Add platform information for TI DM646x PSC
  clk: davinci: Add platform information for TI DM644x PSC
  clk: davinci: Add platform information for TI DM365 PSC
  clk: davinci: Add platform information for TI DM355 PSC
  clk: davinci: Add platform information for TI DA850 PSC
  clk: davinci: Add platform information for TI DA830 PSC
  clk: davinci: New driver for davinci PSC clocks
  dt-bindings: clock: New bindings for TI Davinci PSC
  clk: davinci: Add platform information for TI DM646x PLL
  clk: davinci: Add platform information for TI DM644x PLL
  clk: davinci: Add platform information for TI DM365 PLL
  clk: davinci: Add platform information for TI DM355 PLL
  clk: davinci: Add platform information for TI DA850 PLL
  clk: davinci: Add platform information for TI DA830 PLL
  clk: davinci: New driver for davinci PLL clocks
  dt-bindings: clock: Add new bindings for TI Davinci PLL clocks

* clk-si544:
  clk: Add driver for the si544 clock generator chip

* clk-rockchip:
  clk: rockchip: assign correct id for pclk_ddr and hclk_sd in rk3399
  clk: rockchip: Fix error return in phase clock registration
  clk: rockchip: Correct the behaviour of restoring cached phase
  clk: rockchip: Fix wrong parents for MMC phase clock for rk3328
  clk: rockchip: Fix wrong parent for SDMMC phase clock for rk3228
  clk: rockchip: Add 1.6GHz PLL rate for rk3399
  clk: rockchip: Restore the clock phase after the rate was changed
  clk: rockchip: Prevent calculating mmc phase if clock rate is zero
  clk: rockchip: Free the memory on the error path
  clk: rockchip: document hdmi_phy external input for rk3328
  clk: rockchip: add flags for rk3328 dclk_lcdc
  clk: rockchip: remove ignore_unused flag from rk3328 vio_h2p clocks
  clk: rockchip: protect all remaining rk3328 interconnect clocks
  clk: rockchip: export sclk_hdmi_sfc on rk3328
  clk: rockchip: remove HCLK_VIO from rk3328 dt header
  clk: rockchip: fix hclk_vio_niu on rk3328

* clk-uniphier:
  clk: uniphier: add additional ethernet clock lines for Pro4
  clk: uniphier: add SATA clock control support
  clk: uniphier: add PCIe clock control support
  clk: uniphier: add ethernet clock control support for PXs3
  clk: uniphier: add Pro4/Pro5/PXs2 audio system clock

* clk-ti-flag-fix:
  clk: ti: fix flag space conflict with clkctrl clocks
  clk: ti: clkctrl: add support for CLK_SET_RATE_PARENT flag
2018-04-06 13:22:06 -07:00
Stephen Boyd
e8121d9867 Merge branches 'clk-spreadtrum', 'clk-stm32f', 'clk-stm32mp1', 'clk-hi655x' and 'clk-gpio' into clk-next
* clk-spreadtrum:
  clk: sprd: add RTC gate for SC9860
  dt-bindings: clocks: add APB RTC gate for SC9860

* clk-stm32f:
  clk: stm32: Add clk entry for SDMMC2 on stm32F769
  clk: stm32: Add DSI clock for STM32F469 Board
  clk: stm32: END_PRIMARY_CLK should be declare after CLK_SYSCLK

* clk-stm32mp1:
  clk: stm32: add configuration flags for each of the stm32 drivers
  clk: stm32mp1: add Debug clocks
  clk: stm32mp1: add MCO clocks
  clk: stm32mp1: add RTC clock
  clk: stm32mp1: add Peripheral & Kernel Clocks
  clk: stm32mp1: add Kernel timers
  clk: stm32mp1: add Sub System clocks
  clk: stm32mp1: add Post-dividers for PLL
  clk: stm32mp1: add PLL clocks
  clk: stm32mp1: add Source Clocks for PLLs
  clk: stm32mp1: add MP1 gate for hse/hsi/csi oscillators
  clk: stm32mp1: Introduce STM32MP1 clock driver
  dt-bindings: Document STM32MP1 Reset Clock Controller (RCC) bindings

* clk-hi655x:
  clk: enable hi655x common clk automatically

* clk-gpio:
  clk: clk-gpio: Allow GPIO to sleep in set/get_parent
2018-04-06 13:21:45 -07:00
Mike Looijmans
953cc3e811 clk: Add driver for the si544 clock generator chip
This patch adds the driver and devicetree documentation for the
Silicon Labs SI544 clock generator chip. This is an I2C controlled
oscillator capable of generating clock signals ranging from 200kHz
to 1500MHz.

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
[sboyd: assign max_freq to 0 in is_valid_frequency() to squelch warning]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-03-23 10:05:25 -07:00
Riku Voipio
3a49afb84c clk: enable hi655x common clk automatically
Without COMMON_CLK_HI655X Wifi and bluetooth are non-functional on Hikey.
As suggested by Arnd, enable the driver automatically when the parent
driver is selected. With sensible defaults in place, we can leave other
choices for EXPERT.

Cc: John Stultz <john.stultz@linaro.org>
Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Suggested-by: Arnd Bergmann <arnd@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-03-19 13:52:20 -07:00
Benjamin Gaignard
da32d3539f clk: stm32: add configuration flags for each of the stm32 drivers
Add two configuration flags to be able to not compile all the time
stm32f and stm32h7 drivers when ARCH_STM32 is set.
That help to save some space on those small platforms.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Acked-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-03-19 13:49:36 -07:00
Gabriel Fernandez
9bee94e7b7 clk: stm32mp1: Introduce STM32MP1 clock driver
This patch introduces the mechanism to probe stm32mp1 driver.
It also defines registers definition.
This patch also introduces the generic mechanism to register
a clock (a simple gate, divider and fixed factor).

All clocks will be defined in one table.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
2018-03-11 15:40:32 -07:00
Sudeep Holla
6d6a1d82ea clk: add support for clocks provided by SCMI
On some ARM based systems, a separate Cortex-M based System Control
Processor(SCP) provides the overall power, clock, reset and system
control. System Control and Management Interface(SCMI) Message Protocol
is defined for the communication between the Application Cores(AP)
and the SCP.

This patch adds support for the clocks provided by SCP using SCMI
protocol.

Cc: linux-clk@vger.kernel.org
Cc: Michael Turquette <mturquette@baylibre.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2018-02-28 16:37:57 +00:00
Stephen Boyd
c43a52cfd2 Merge branches 'clk-aspeed', 'clk-lock-UP', 'clk-mediatek' and 'clk-allwinner' into clk-next
* clk-aspeed:
  clk: aspeed: Handle inverse polarity of USB port 1 clock gate
  clk: aspeed: Fix return value check in aspeed_cc_init()
  clk: aspeed: Add reset controller
  clk: aspeed: Register gated clocks
  clk: aspeed: Add platform driver and register PLLs
  clk: aspeed: Register core clocks
  clk: Add clock driver for ASPEED BMC SoCs
  dt-bindings: clock: Add ASPEED constants

* clk-lock-UP:
  clk: fix reentrancy of clk_enable() on UP systems

* clk-mediatek:
  clk: mediatek: adjust dependency of reset.c to avoid unexpectedly being built
  clk: mediatek: Fix all warnings for missing struct clk_onecell_data
  clk: mediatek: fixup test-building of MediaTek clock drivers
  clk: mediatek: group drivers under indpendent menu

* clk-allwinner:
  clk: sunxi-ng: a83t: Add M divider to TCON1 clock
  clk: sunxi-ng: fix the A64/H5 clock description of DE2 CCU
  clk: sunxi-ng: add support for Allwinner H3 DE2 CCU
  dt-bindings: fix the binding of Allwinner DE2 CCU of A83T and H3
  clk: sunxi-ng: sun8i: a83t: Use sigma-delta modulation for audio PLL
  clk: sunxi-ng: sun8i: a83t: Add /2 fixed post divider to audio PLL
  clk: sunxi-ng: Support fixed post-dividers on NM style clocks
  clk: sunxi-ng: sun50i: a64: Add 2x fixed post-divider to MMC module clocks
  clk: sunxi-ng: Support fixed post-dividers on MP style clocks
  clk: sunxi: Use PTR_ERR_OR_ZERO()
2018-01-26 16:43:39 -08:00
Joel Stanley
5eda5d79e4 clk: Add clock driver for ASPEED BMC SoCs
This adds the stub of a driver for the ASPEED SoCs. The clocks are
defined and the static registration is set up.

Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2018-01-26 16:22:37 -08:00
Chunyan Zhang
d41f59fd92 clk: sprd: Add common infrastructure
Added Spreadtrum's clock driver framework together with common
structures and interface functions.

Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-12-21 15:00:51 -08:00
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
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
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
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
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
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
Daniel Lezcano
b68adc23bc clk: hi6220: Add the hi655x's pmic clock
The hi655x multi function device is a PMIC providing regulators.

The PMIC also provides a clock for the WiFi and the Bluetooth, let's implement
this clock in order to add it in the hi655x MFD and allow proper wireless
initialization.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
[sboyd@codeaurora.org: Remove clkdev usage]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-04-21 19:18:53 -07:00
Marek Vasut
3e1aec4e2c clk: vc5: Add support for IDT VersaClock 5P49V5923 and 5P49V5933
Add driver for IDT VersaClock 5 5P49V5923 and 5P49V5933 chips. These
chips have two clock inputs, XTAL or CLK, which are muxed into single
PLL/VCO input. In case of 5P49V5923, the XTAL in built into the chip
while the 5P49V5923 requires external XTAL.

The PLL feeds two fractional dividers. Each fractional divider feeds
output mux, which allows selecting between clock from the fractional
divider itself or from output mux on output N-1. In case of output
mux 0, the output N-1 is instead connected to the output from the mux
feeding the PLL.

The driver thus far supports only the 5P49V5923 and 5P49V5933, while
it should be easily extensible to the whole 5P49V59xx family of chips
as they are all pretty similar.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: linux-renesas-soc@vger.kernel.org
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-20 16:17:34 -08:00
Akinobu Mita
5508124ccc clk: cdce925: add support for CDCE913, CDCE937, and CDCE949
The CDCE925 is a member of the CDCE(L)9xx programmable clock generator
family.  There are also CDCE913, CDCE937, CDCE949 which have different
number of PLLs and outputs.

The clk-cdce925 driver supports only CDCE925 in the family.  This adds
support for the CDCE913, CDCE937, CDCE949, too.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Mike Looijmans <mike.looijmans@topic.nl>
Cc: Michael Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-09 16:38:30 -08:00
Krzysztof Kozlowski
9c1b305c1e clk: Enable compile testing for s2mps11 and max77686
s2mps11 and max77686 clock drivers can be compile tested to increase
build coverage.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-01 17:33:13 -07:00
Masahiro Yamada
734d82f4a6 clk: uniphier: add core support code for UniPhier clock driver
This includes UniPhier clock driver code, except SoC-specific
data arrays.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-09-16 16:31:33 -07:00
James Liao
2886c84681 clk: mediatek: Refine the makefile to support multiple clock drivers
Add a Kconfig to define clock configuration for each SoC, and
modify the Makefile to build drivers that only selected in config.

Signed-off-by: Shunli Wang <shunli.wang@mediatek.com>
Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Signed-off-by: Erin Lo <erin.lo@mediatek.com>
Tested-by: John Crispin <blogic@openwrt.org>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-08-19 12:18:38 -07:00
Laxman Dewangan
5a227cd1ab clk: max77686: Add support for MAX77620 clocks
Maxim Max77620 has one 32KHz clock output and the clock HW
IP used on this PMIC is same as what it is there in the MAX77686.

Add clock driver support for MAX77620 on the MAX77686 driver.

CC: Krzysztof Kozlowski <k.kozlowski@samsung.com>
CC: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-08-15 15:39:32 -07:00
Laxman Dewangan
8ad313fe4e clk: max77686: Combine Maxim max77686 and max77802 driver
The clock IP used on the Maxim PMICs max77686 and max77802 are
same. The configuration of clock register is also same except
the number of clocks.

Part of common code utilisation, there is 3 files for these chips
clock driver, one for common and two files for driver registration.

Combine both drivers into single file and move common code into
same common file reduces the 2 files and make max77686 and max77802
clock driver in single fine. This driver does not depends on the
parent driver structure. The regmap handle is acquired through
regmap APIs for the register access.

This combination of driver helps on adding clock driver for different
Maxim PMICs which has similar clock IP like MAX77620 and MAX20024.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
CC: Krzysztof Kozlowski <k.kozlowski@samsung.com>
CC: Javier Martinez Canillas <javier@dowhile0.org>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-08-15 15:32:41 -07:00
Jean Delvare
821f9946e0 clk: oxnas: Add hardware dependencies
The clk-oxnas driver is specific to its architecture, so do not
propose it on other architectures, unless build-testing.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20160707091844.196a7930@endymion
2016-07-12 15:31:21 -07:00
Michael Turquette
7adb769561 Merge branch 'clk-sunxi-ng' into clk-next 2016-07-08 18:08:56 -07:00
Maxime Ripard
1d80c14248 clk: sunxi-ng: Add common infrastructure
Start our new clock infrastructure by adding the registration code, common
structure and common code.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20160629190535.11855-3-maxime.ripard@free-electrons.com
2016-07-08 18:04:32 -07:00