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Commit Graph

33446 Commits

Author SHA1 Message Date
Olof Johansson
3b27dcec92 The patch fixes EDMA crossbar mapping to actually
make it work. The patch has been tagged for stable.
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Merge tag 'davinci-fixes-for-v3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into fixes

Pull "DaVinci fixes for v3.15" from Sekhar Nori:

The patch fixes EDMA crossbar mapping to actually
make it work. The patch has been tagged for stable.

* tag 'davinci-fixes-for-v3.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
  ARM: common: edma: Fix xbar mapping

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-10 22:06:07 -07:00
Olof Johansson
6a7c7b007a Set of fixes for the Allwinner support for 3.15
Some minor things, the major thing being the enabling of the GMAC driver in
 sunxi_defconfig that will un-break Olof's autobooters.
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Merge tag 'sunxi-fixes-for-3.15' of https://github.com/mripard/linux into fixes

Merge 'Allwinner fixes for 3.15' from Maxime Ripard:

Set of fixes for the Allwinner support for 3.15

Some minor things, the major thing being the enabling of the GMAC driver in
sunxi_defconfig that will un-break Olof's autobooters.

* tag 'sunxi-fixes-for-3.15' of https://github.com/mripard/linux:
  ARM: sunxi: Enable GMAC in sunxi_defconfig
  ARM: sun7i: Fix i2c4 base address
  ARM: sun7i: fix PLL4 clock and add PLL8

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-10 20:25:07 -07:00
Olof Johansson
e5e49fe9df mvebu DT fixes for v3.15 (incremental #2)
- kirkwood: fix mis-located pcie controller nodes
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Merge tag 'mvebu-dt-fixes-3.15-2' of git://git.infradead.org/linux-mvebu into fixes

Merge 'ARM: mvebu: DT fixes for v3.15 (incr #2)' from Jason Cooper:

mvebu DT fixes for v3.15 (incremental #2)

 - kirkwood: fix mis-located pcie controller nodes

* tag 'mvebu-dt-fixes-3.15-2' of git://git.infradead.org/linux-mvebu:
  ARM: dts: kirkwood: fix mislocated pcie-controller nodes

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-10 20:22:29 -07:00
Sascha Hauer
6d66da89bf ARM: dts: i.MX53: Fix ipu register space size
The IPU register space is 128MB, not 2GB.

Fixes: abed9a6bf2 'ARM i.MX53: Add IPU support'
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-10 20:19:44 -07:00
Ian Campbell
9f1d341415 arm: xen: export HYPERVISOR_multicall to modules.
"arm: xen: implement multicall hypercall support." forgot to do this.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2014-05-09 16:10:49 +00:00
Heiko Stuebner
d8b532578f ARM: S3C24XX: cpufreq-utils: don't write raw values to MPLLCON when using ccf
The s3c24xx cpufreq driver needs to change the mpll speed and was doing
this by writing raw values from a translation table into the MPLLCON
register.

Change this to use a regular clk_set_rate call when using the common
clock framework and only write the raw value in the samsung_clock case.

The s3c cpufreq driver does already aquire the mpll, so simply add a reference
to struct s3c_cpufreq_config to let set_fvco access it.

While struct clk is opaque the differenciation between samsung clock and
common clock is kept, as the samsung-clock mpll clk does not implement a
real set_rate.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-05-09 05:48:44 +09:00
Tony Lindgren
e610c9d3ae Merge branch 'pull/l3noc/dts-fixes' of https://github.com/nmenon/linux-2.6-playground into omap-for-v3.16/fixes-not-urgent 2014-05-08 08:02:57 -07:00
Victor Kamensky
be2d628448 ARM: OMAP: debug-leds: raw read and write endian fix
All OMAP IP blocks expect LE data, but CPU may operate in BE mode.
Need to use endian neutral functions to read/write h/w registers.
I.e instead of __raw_read[lw] and __raw_write[lw] functions code
need to use read[lw]_relaxed and write[lw]_relaxed functions.
If the first simply reads/writes register, the second will byteswap
it if host operates in BE mode.

Changes are trivial sed like replacement of __raw_xxx functions
with xxx_relaxed variant.

Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-08 07:09:55 -07:00
Victor Kamensky
f6f3b50f99 ARM: OMAP: counter-32k: raw read and write endian fix
All OMAP IP blocks expect LE data, but CPU may operate in BE mode.
Need to use endian neutral functions to read/write h/w registers.
I.e instead of __raw_read[lw] and __raw_write[lw] functions code
need to use read[lw]_relaxed and write[lw]_relaxed functions.
If the first simply reads/writes register, the second will byteswap
it if host operates in BE mode.

Changes are trivial sed like replacement of __raw_xxx functions
with xxx_relaxed variant.

Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-08 07:09:55 -07:00
Victor Kamensky
834cacfbef ARM: OMAP: dmtimer: raw read and write endian fix
All OMAP IP blocks expect LE data, but CPU may operate in BE mode.
Need to use endian neutral functions to read/write h/w registers.
I.e instead of __raw_read[lw] and __raw_write[lw] functions code
need to use read[lw]_relaxed and write[lw]_relaxed functions.
If the first simply reads/writes register, the second will byteswap
it if host operates in BE mode.

Changes are trivial sed like replacement of __raw_xxx functions
with xxx_relaxed variant.

Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-08 07:09:54 -07:00
Victor Kamensky
edfaf05c2f ARM: OMAP2+: raw read and write endian fix
All OMAP IP blocks expect LE data, but CPU may operate in BE mode.
Need to use endian neutral functions to read/write h/w registers.
I.e instead of __raw_read[lw] and __raw_write[lw] functions code
need to use read[lw]_relaxed and write[lw]_relaxed functions.
If the first simply reads/writes register, the second will byteswap
it if host operates in BE mode.

Changes are trivial sed like replacement of __raw_xxx functions
with xxx_relaxed variant.

Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-08 07:09:53 -07:00
Pekon Gupta
2347152bb7 ARM: dts: am43xx: fix starting offset of NAND.filesystem MTD partition
MTD NAND partition for file-system should start at offset=0xA00000

Signed-off-by: Pekon Gupta <pekon@ti.com>
[tony@atomide.com: changed to lower case hex like we tend to use]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 08:48:31 -07:00
Greg Kroah-Hartman
3519acb3b0 Merge branch 'imx-drm-fixes-urgent' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into staging-linus
imx drm fixes from Russell
2014-05-06 06:25:10 -07:00
Johan Hovold
6ecb6ca410 ARM: dts: am335x-boneblack: remove use of ti,vcc-aux-disable-is-sleep
Remove use of property ti,vcc-aux-disable-is-sleep, which does not
exist.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-05 17:37:13 -07:00
Oussama Ghorbel
332f19317e ARM: OMAP2+: free use_gptimer_clksrc variable after boot
The variable use_gptimer_clksrc is only used by two __init functions,
So we can freely free it after boot.

Signed-off-by: Oussama Ghorbel <ghorbel@pivasoftware.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-05 17:35:03 -07:00
Joel Fernandes
55fde31cae ARM: OMAP5: Redo THUMB mode switch on secondary CPU
Here's a redo of the patch [1] that effectively does the same
thing but is the right way to do things by using ENDPROC instead.
The firmware correctly switches to THUMB before entry.

The patch applies ontop of the earlier patch [1].

[1] https://lkml.org/lkml/2014/4/22/1044

Suggested-by: Dave Martin <Dave.Martin@arm.com>
Cc: Dave Martin <Dave.Martin@arm.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Nishanth Menon <nm@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-05 17:32:25 -07:00
Olof Johansson
8df3211971 Renesas ARM Based SoC Cleanup Updates for v3.16
r8a7740 (R-Mobile A1) SoC
 * Make r8a7740_meram_workaround() __init
 * Remove unused r8a7740_add_early_devices_dt()
 
 r8a7740 (R-Mobile A1) based Armadillo800 EVA board
 * Spelling and grammar fixes
 
 sh7372 (SH-Mobile AP4) SoC
 * Call sh7372_add_early_devices() instead of open coding
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Merge tag 'renesas-cleanup-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/cleanup

Merge "Renesas ARM Based SoC Cleanup Updates for v3.16" from Simon Horman:

r8a7740 (R-Mobile A1) SoC
* Make r8a7740_meram_workaround() __init
* Remove unused r8a7740_add_early_devices_dt()

r8a7740 (R-Mobile A1) based Armadillo800 EVA board
* Spelling and grammar fixes

sh7372 (SH-Mobile AP4) SoC
* Call sh7372_add_early_devices() instead of open coding

* tag 'renesas-cleanup-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: r8a7740: Make r8a7740_meram_workaround() __init
  ARM: shmobile: sh7372: Call sh7372_add_early_devices() instead of open coding
  ARM: shmobile: r8a7740: Remove unused r8a7740_add_early_devices_dt()
  ARM: shmobile: armadillo800eva: Spelling and grammar

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-05 14:29:05 -07:00
Olof Johansson
186a73dc9a Several mach kconfig clean-ups of redundant selects
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Merge tag 'kconfig-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux into next/cleanup

Merge Kconfig cleanups from Rob Herring:

Several mach kconfig clean-ups of redundant selects

* tag 'kconfig-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  ARM: qcom: clean-up unneeded kconfig selects
  ARM: bcm: clean-up unneeded kconfig selects
  ARM: mvebu: clean-up unneeded kconfig selects
  + Linux 3.15-rc2

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-05 14:18:49 -07:00
Afzal Mohammed
2eeddb8a53 ARM: dts: AM4372: add l3-noc information
AM4372 has two clk domains 100f and 200s. Provide register mapping,
interrupt information and compatibility flags associated with it.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
2014-05-05 14:35:29 -05:00
Rajendra Nayak
fba387a616 ARM: dts: DRA7: Use dra7-l3-noc instead of omap4-l3-noc
We have currently marked the DRA7 L3 as being compatible with
omap4-l3-noc This is not true considering the differences in data
involved.

Now that we have proper support for ti,dra7-l3-noc, add the clock
modules clk1 and clk3 (clk2 submodule will be handled by the driver)
and switch compatibility flag to use the proper data.

Signed-off-by: Rajendra Nayak <ranayak@ti.com>
[nm@ti.com: map up full address range]
Signed-off-by: Nishanth Menon <nm@ti.com>
2014-05-05 14:35:22 -05:00
Olof Johansson
a2af978986 mvebu DT fixes for v3.15
- mvebu
 
     - fix NOR bus width on Armada XP boards
     - use qsgmii on Armada XP GP board
     - add i2c bus freq for Armada 370 DB board
     - add SATA interface for Armada 375 DB
 
  - kirkwood
 
     - fix double probe of audio codec for T5325
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Merge tag 'mvebu-dt-fixes-3.15' of git://git.infradead.org/linux-mvebu into fixes

From Jason Cooper:
mvebu DT fixes for v3.15

 - mvebu
    - fix NOR bus width on Armada XP boards
    - use qsgmii on Armada XP GP board
    - add i2c bus freq for Armada 370 DB board
    - add SATA interface for Armada 375 DB

 - kirkwood
    - fix double probe of audio codec for T5325

* tag 'mvebu-dt-fixes-3.15' of git://git.infradead.org/linux-mvebu:
  ARM: Kirkwood: T5325: Fix double probe of Codec
  ARM: mvebu: enable the SATA interface on Armada 375 DB
  ARM: mvebu: specify I2C bus frequency on Armada 370 DB
  ARM: mvebu: use qsgmii phy-mode for Armada XP GP interfaces
  ARM: mvebu: fix NOR bus-width in Armada XP OpenBlocks AX3 Device Tree
  ARM: mvebu: fix NOR bus-width in Armada XP DB Device Tree
  ARM: mvebu: fix NOR bus-width in Armada XP GP Device Tree

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-04 22:35:15 -07:00
Olof Johansson
1270f063f9 mvebu fixes for v3.15
- devbus: fix bus-width conversion
 
  - orion5x: fix target ID for crypto SRAM window
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Merge tag 'mvebu-fixes-3.15' of git://git.infradead.org/linux-mvebu into fixes

From Jason Cooper:
mvebu fixes for v3.15

 - devbus: fix bus-width conversion

 - orion5x: fix target ID for crypto SRAM window

* tag 'mvebu-fixes-3.15' of git://git.infradead.org/linux-mvebu:
  ARM: orion5x: fix target ID for crypto SRAM window
  memory: mvebu-devbus: fix the conversion of the bus width

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-04 22:27:30 -07:00
Olof Johansson
9a2044fce2 Mostly fixes for occasional memory corruption caused by bad
timings for smc911x LAN9220 (and potentially LAN9221) devices
 that were noted on a cm-t3730 system. Also fix THUMB mode
 for SMP, and mailbox related warnings when booted with device
 tree.
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Merge tag 'omap-for-v3.15/fixes-gpmc' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Merge fixes from Tony Lindgren:

Mostly fixes for occasional memory corruption caused by bad
timings for smc911x LAN9220 (and potentially LAN9221) devices
that were noted on a cm-t3730 system. Also fix THUMB mode
for SMP, and mailbox related warnings when booted with device
tree.

* tag 'omap-for-v3.15/fixes-gpmc' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: AM3517: Disable absent IPs inherited from OMAP3
  ARM: dts: OMAP2: Fix interrupts for OMAP2420 mailbox
  ARM: dts: OMAP5: Add mailbox dt node to fix boot warning
  ARM: OMAP5: Switch to THUMB mode if needed on secondary CPU
  ARM: dts: am437x-gp-evm: Do not reset gpio5
  ARM: dts: omap3-igep0020: use SMSC9221 timings
  ARM: dts: Fix GPMC timings for LAN9220
  ARM: dts: Fix GPMC Ethernet timings for omap cm-t sbc-t boards for device tree
  ARM: dts: Fix bad OTG muxing for cm-t boards

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-04 22:20:30 -07:00
Sebastian Hesselbarth
788296b2d1 ARM: dts: kirkwood: fix mislocated pcie-controller nodes
Commit 54397d8534
 ("ARM: kirkwood: Relocate PCIe device tree nodes")

moved the pcie-controller nodes for the Kirkwood SoCs to the mbus
bus node. For some reason, two boards were not properly converted
and have their pci-controller nodes still in the ocp bus node.

As the corresponding SoC pcie-controller does not exist anymore,
it is likely that pcie is broken on those boards since above commit.
Fix it by moving the pcie related nodes to the correct location.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Fixes: 54397d8534 ("ARM: kirkwood: Relocate PCIe device tree nodes")
Cc: <stable@vger.kernel.org> # v3.12+
Acked-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lkml.kernel.org/r/1398862602-29595-2-git-send-email-sebastian.hesselbarth@gmail.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-05-05 00:43:15 +00:00
Linus Torvalds
e7e6d2a4a1 - Fix for a Haswell regression in nested virtualization, introduced during
the merge window.
 
 - A fix from Oleg to async page faults.
 
 - A bunch of small ARM changes.
 
 - A trivial patch to use the new MSI-X API introduced during the merge
 window.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 - Fix for a Haswell regression in nested virtualization, introduced
   during the merge window.
 - A fix from Oleg to async page faults.
 - A bunch of small ARM changes.
 - A trivial patch to use the new MSI-X API introduced during the merge
   window.

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: ARM: vgic: Fix the overlap check action about setting the GICD & GICC base address.
  KVM: arm/arm64: vgic: fix GICD_ICFGR register accesses
  KVM: async_pf: mm->mm_users can not pin apf->mm
  KVM: ARM: vgic: Fix sgi dispatch problem
  MAINTAINERS: co-maintainance of KVM/{arm,arm64}
  arm: KVM: fix possible misalignment of PGDs and bounce page
  KVM: x86: Check for host supported fields in shadow vmcs
  kvm: Use pci_enable_msix_exact() instead of pci_enable_msix()
  ARM: KVM: disable KVM in Kconfig on big-endian systems
2014-05-02 09:26:09 -07:00
Maxime Ripard
84e108fc7b ARM: sunxi: Enable GMAC in sunxi_defconfig
Since the support of the GMAC has been merged, we're using it as the ethernet
controller on the A20 devices.

However, sunxi_defconfig wasn't selecting it hence breaking the NFS boot.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-01 17:07:42 -07:00
Thomas Gleixner
cf7eb97911 ARM: common: edma: Fix xbar mapping
This is another great example of trainwreck engineering:

commit 2646a0e529 (ARM: edma: Add EDMA crossbar event mux support)
added support for using EDMA on peripherals which have no direct EDMA
event mapping.

The code compiles and does not explode in your face, but that's it.

1) Reading an u16 array from an u32 device tree array simply does not
   work. Even if the function is named "edma_of_read_u32_to_s16_array".

   It merily calls of_property_read_u16_array. So the resulting 16bit
   array will have every other entry = 0.

2) The DT entry for the xbar registers related to xbar has length 0x10
   instead of the real length: 0xfd0 - 0xf90 = 0x40.

   Not a real problem as it does not cross a page boundary, but
   wrong nevertheless.

3) But none of this matters as the mapping never happens:

   After reading nonsense edma_of_read_u32_to_s16_array() invalidates
   the first array entry pair, so nobody can ever notice the
   braindamage by immediate explosion.

Seems the QA criteria for this code was solely not to explode when
someone adds edma-xbar-event-map entries to the DT. Goal achieved,
congratulations!

Not really helpful if someone wants to use edma on a device which
requires a xbar mapping.

Fix the issues by:

- annotating the device tree entry with "/bits/ 16" as documented in
  the of_property_read_u16_array kernel doc

- make the size of the xbar register mapping correct

- invalidating the end of the array and not the start

This convoluted mess wants to be completely rewritten as there is no
point to keep the xbar_chan array memory and the iomapping of the xbar
regs around forever. Marking the xbar mapped channels as used should
be done right there.

But that's a different issue and this patch is small enough to make it
work and allows a simple backport for stable.

Cc: stable@vger.kernel.org # v3.12+
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2014-04-29 19:33:49 +05:30
Linus Torvalds
87c7662bea Devicetree bug fixes for v3.15
This branch contains a pair of important bug fixes for the DT code:
 - Fix some incorrect binding property names before they enter common usage
 - Fix bug where some platform devices will be unable to get their
   interrupt number when they depend on an interrupt controller that is
   not available at device creation time. This is a problem causing
   mainline to fail on a number of ARM platforms.
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Merge tag 'dt-for-linus' of git://git.secretlab.ca/git/linux

Pull devicetree bug fixes from Grant Likely:
 "These are some important bug fixes that need to get into v3.15.

  This branch contains a pair of important bug fixes for the DT code:

   - Fix some incorrect binding property names before they enter common
     usage

   - Fix bug where some platform devices will be unable to get their
     interrupt number when they depend on an interrupt controller that
     is not available at device creation time.  This is a problem
     causing mainline to fail on a number of ARM platforms"

* tag 'dt-for-linus' of git://git.secretlab.ca/git/linux:
  of/irq: do irq resolution in platform_get_irq
  of: selftest: add deferred probe interrupt test
  dt: Fix binding typos in clock-names and interrupt-names
2014-04-28 15:19:06 -07:00
Laurent Pinchart
98d7e1aee6 ARM: OMAP3: clock: Back-propagate rate change from cam_mclk to dpll4_m5 on all OMAP3 platforms
Commit 7b2e127759 ("ARM: OMAP3: clock:
Back-propagate rate change from cam_mclk to dpll4_m5") enabled clock
rate back-propagation from cam_mclk do dpll4_m5 on OMAP3630 only.
Perform back-propagation on other OMAP3 platforms as well.

Reported-by: Jean-Philippe François <jp.francois@cynove.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: <stable@kernel.org>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-04-28 15:58:22 -06:00
Maxime Ripard
a38670459d ARM: sun7i: Fix i2c4 base address
For some reason, the base address of the fifth I2C adapter in the A20 was
incorrect. Change this to the actual base address.

Reported-by: Marcus Cooper <codekipper@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
2014-04-28 09:12:04 -07:00
Mark Salter
5d4e08c45a arm: KVM: fix possible misalignment of PGDs and bounce page
The kvm/mmu code shared by arm and arm64 uses kalloc() to allocate
a bounce page (if hypervisor init code crosses page boundary) and
hypervisor PGDs. The problem is that kalloc() does not guarantee
the proper alignment. In the case of the bounce page, the page sized
buffer allocated may also cross a page boundary negating the purpose
and leading to a hang during kvm initialization. Likewise the PGDs
allocated may not meet the minimum alignment requirements of the
underlying MMU. This patch uses __get_free_page() to guarantee the
worst case alignment needs of the bounce page and PGDs on both arm
and arm64.

Cc: <stable@vger.kernel.org> # 3.10+
Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2014-04-28 03:21:48 -07:00
Julien Grall
063aa8e68e arm/xen: Remove definiition of virt_to_pfn in asm/xen/page.h
virt_to_pfn has been defined in asm/memory.h by the commit e26a9e0 "ARM: Better
virt_to_page() handling"

This will result of a compilation warning when CONFIG_XEN is enabled.

arch/arm/include/asm/xen/page.h:80:0: warning: "virt_to_pfn" redefined [enabled by default]
 #define virt_to_pfn(v)          (PFN_DOWN(__pa(v)))
 ^
In file included from arch/arm/include/asm/page.h:163:0,
                 from arch/arm/include/asm/xen/page.h:4,
                 from include/xen/page.h:4,
                 from arch/arm/xen/grant-table.c:33:

The definition in memory.h is nearly the same (it directly expand PFN_DOWN),
so we can safely drop virt_to_pfn in xen include.

Signed-off-by: Julien Grall <julien.grall@linaro.org>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2014-04-28 10:31:12 +01:00
David Vrabel
67dadcb324 Merge commit 'e26a9e0' into stable/for-linus-3.15 2014-04-28 10:31:04 +01:00
Linus Torvalds
ac6c9e2bed Merge branch 'safe-dirty-tlb-flush'
This merges the patch to fix possible loss of dirty bit on munmap() or
madvice(DONTNEED).  If there are concurrent writers on other CPU's that
have the unmapped/unneeded page in their TLBs, their writes to the page
could possibly get lost if a third CPU raced with the TLB flush and did
a page_mkclean() before the page was fully written.

Admittedly, if you unmap() or madvice(DONTNEED) an area _while_ another
thread is still busy writing to it, you deserve all the lost writes you
could get.  But we kernel people hold ourselves to higher quality
standards than "crazy people deserve to lose", because, well, we've seen
people do all kinds of crazy things.

So let's get it right, just because we can, and we don't have to worry
about it.

* safe-dirty-tlb-flush:
  mm: split 'tlb_flush_mmu()' into tlb flushing and memory freeing parts
2014-04-27 15:08:12 -07:00
Linus Torvalds
2b9d1c050d Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull arm fixes from Russell King:
 "A number of fixes for the PJ4/iwmmxt changes which arm-soc forced me
  to take during the merge window.  This stuff should have been better
  tested and sorted out *before* the merge window"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8042/1: iwmmxt: allow to build iWMMXt on Marvell PJ4B
  ARM: 8041/1: pj4: fix cpu_is_pj4 check
  ARM: 8040/1: pj4: properly detect existence of iWMMXt coprocessor
  ARM: 8039/1: pj4: enable iWMMXt only if CONFIG_IWMMXT is set
  ARM: 8038/1: iwmmxt: explicitly check for supported architectures
2014-04-27 12:55:04 -07:00
Linus Torvalds
d0c15ad760 Staging / IIO driver fixes for 3.15-rc3
Here are some small staging and IIO driver fixes for 3.15-rc3.
 
 Nothing major at all, just some assorted issues that people have reported.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging / IIO driver fixes from Greg KH:
 "Here are some small staging and IIO driver fixes for 3.15-rc3.

  Nothing major at all, just some assorted issues that people have
  reported"

* tag 'staging-3.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: comedi: usbdux: bug fix for accessing 'ao_chanlist' in private data
  iio: adc: mxs-lradc: fix warning when buidling on avr32
  iio: cm36651: Fix i2c client leak and possible NULL pointer dereference
  iio: querying buffer scan_mask should return 0/1
  staging:iio:ad2s1200 fix a missing break
  iio: adc: at91_adc: correct default shtim value
  ARM: at91: at91sam9260: change at91_adc name
  ARM: at91: at91sam9g45: change at91_adc name
  iio: cm32181: Fix read integration time function
  iio: adc: at91_adc: Repair broken platform_data support
2014-04-27 10:34:29 -07:00
Will Deacon
4e4468fac4 ARM: KVM: disable KVM in Kconfig on big-endian systems
KVM currently crashes and burns on big-endian hosts, so don't allow it
to be selected until we've got that fixed.

Cc: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2014-04-26 04:20:03 -07:00
Shawn Guo
a3fe964135 imx-drm: imx-tve: correct DDC property name to 'ddc-i2c-bus'
Commit 62e3879 (imx-drm: imx-tve: Fix DDC I2C bus property) was trying
to use 'ddc-i2c-bus' as the DDC property name (we can see that from the
commit log), but unfortunately 'i2c-ddc-bus' which is a typo was
actually used in the code.  This results in some unnecessary
inconsistency and confusions, because all the documented DDC property
in device tree bindings use 'ddc-i2c-bus'.

  Documentation/devicetree/bindings/staging/imx-drm/hdmi.txt
  Documentation/devicetree/bindings/panel/simple-panel.txt
  Documentation/devicetree/bindings/video/dvi-connector.txt

Let's fix it before the error spreads.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-26 11:23:38 +01:00
Arnd Bergmann
12e8e59525 3.15 fixes for AT91
- one little DT fix
 - the use of proper directory for clock in include/dt-bindings
   it allows to remove the now empty include/dt-bindings/clk
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Merge tag 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixes

3.15 fixes for AT91
- one little DT fix
- the use of proper directory for clock in include/dt-bindings
  it allows to remove the now empty include/dt-bindings/clk

* tag 'at91-fixes' of git://github.com/at91linux/linux-at91:
  dt-bindings: clock: Move at91.h to dt-bindigs/clock
  ARM: at91: fix spi cs on sama5d3 Xplained board

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-04-26 11:29:30 +02:00
Linus Torvalds
1cf35d4771 mm: split 'tlb_flush_mmu()' into tlb flushing and memory freeing parts
The mmu-gather operation 'tlb_flush_mmu()' has done two things: the
actual tlb flush operation, and the batched freeing of the pages that
the TLB entries pointed at.

This splits the operation into separate phases, so that the forced
batched flushing done by zap_pte_range() can now do the actual TLB flush
while still holding the page table lock, but delay the batched freeing
of all the pages to after the lock has been dropped.

This in turn allows us to avoid a race condition between
set_page_dirty() (as called by zap_pte_range() when it finds a dirty
shared memory pte) and page_mkclean(): because we now flush all the
dirty page data from the TLB's while holding the pte lock,
page_mkclean() will be held up walking the (recently cleaned) page
tables until after the TLB entries have been flushed from all CPU's.

Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Tested-by: Dave Hansen <dave.hansen@intel.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-25 16:05:40 -07:00
Andrew Lunn
e247686085 ARM: Kirkwood: T5325: Fix double probe of Codec
The codec is defined both in DT and the board file. The board file
however contains platform data which is required in order that the
codec works. When the DT instantiates the codec before the board files
does, it is missing the platform data and so fails. Remove the DT node
until we have a binding which can pass the additional data.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lkml.kernel.org/r/1397565608-1830-1-git-send-email-andrew@lunn.ch
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-04-25 21:23:42 +00:00
Thomas Petazzoni
d685058f5b ARM: mvebu: enable the SATA interface on Armada 375 DB
The Armada 375 SoC has a dual-port SATA interface, which is exposed on
the Armada 375 DB board. This commit therefore enables this interface
on the Armada 375 DB board.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Link: https://lkml.kernel.org/r/1397806908-7550-3-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-04-25 21:23:40 +00:00
Thomas Petazzoni
ac164d1144 ARM: mvebu: specify I2C bus frequency on Armada 370 DB
In commit 249f382250 ('ARM: mvebu: add
audio support to Armada 370 DB'), the I2C bus 0 was enabled on the
Armada 370 DB board, and an I2C codec was described as being connected
on this bus.

However, this commit forgot to define the I2C bus frequency, which
leads the i2c-mv64xxx to fail probing, as it cannot calculate the baud
rate multiplier/divisor to derive the I2C bus frequency from the core
SoC frequency. It makes audio completely unusable, as the I2C bus is
not probed, and therefore the audio codec is not probed either.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Link: https://lkml.kernel.org/r/1397806908-7550-2-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-04-25 21:23:39 +00:00
Thomas Petazzoni
80fa10f4e9 ARM: mvebu: use qsgmii phy-mode for Armada XP GP interfaces
The Armada XP GP isn't using rgmii-id connections between the MAC and
PHY, but instead a single QSGMII connection, which is a quad-SGMII
connection: a double pair of differential lines that are multiplexed
to convey the traffic of four network interfaces between a MAC and a
PHY.

Until now, the Armada XP GP was relying on the bootloader setting the
correct values in various configuration registers. With this change,
the mvneta driver can be used as a module on this platform.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1397569821-5530-4-git-send-email-thomas.petazzoni@free-electrons.com
Tested-by: Arnaud Ebalard <arno@natisbad.org>
Tested-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-04-25 21:23:37 +00:00
Thomas Petazzoni
6e20bae8a3 ARM: mvebu: fix NOR bus-width in Armada XP OpenBlocks AX3 Device Tree
The mvebu-devbus driver had a serious bug, which lead to a 8 bits bus
width declared in the Device Tree being considered as a 16 bits bus
width when configuring the hardware.

This bug in mvebu-devbus driver was compensated by a symetric mistake
in the Armada XP OpenBlocks AX3 Device Tree: a 8 bits bus width was
declared, even though the hardware actually has a 16 bits bus width
connection with the NOR flash.

Now that we have fixed the mvebu-devbus driver to behave according to
its Device Tree binding, this commit fixes the problematic Device Tree
files as well.

This bug was introduced in commit
a7d4f81821 ('ARM: mvebu: Add support for
NOR flash device on Openblocks AX3 board') which was merged in v3.10.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1397489361-5833-5-git-send-email-thomas.petazzoni@free-electrons.com
Fixes: a7d4f81821 ('ARM: mvebu: Add support for NOR flash device on Openblocks AX3 board')
Cc: stable@vger.kernel.org # v3.10+
Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-04-25 21:23:36 +00:00
Thomas Petazzoni
f3aec8f3f0 ARM: mvebu: fix NOR bus-width in Armada XP DB Device Tree
The mvebu-devbus driver had a serious bug, which lead to a 8 bits bus
width declared in the Device Tree being considered as a 16 bits bus
width when configuring the hardware.

This bug in mvebu-devbus driver was compensated by a symetric mistake
in the Armada XP DB Device Tree: a 8 bits bus width was declared, even
though the hardware actually has a 16 bits bus width connection with
the NOR flash.

Now that we have fixed the mvebu-devbus driver to behave according to
its Device Tree binding, this commit fixes the problematic Device Tree
files as well.

This bug was introduced in commit
b484ff42df ('ARM: mvebu: Add support for
NOR flash device on Armada XP-DB board') which was merged in v3.11.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1397489361-5833-4-git-send-email-thomas.petazzoni@free-electrons.com
Fixes: b484ff42df ('ARM: mvebu: Add support for NOR flash device on Armada XP-DB board')
Cc: stable@vger.kernel.org # v3.11+
Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-04-25 21:23:35 +00:00
Thomas Petazzoni
1a88f809cc ARM: mvebu: fix NOR bus-width in Armada XP GP Device Tree
The mvebu-devbus driver had a serious bug, which lead to a 8 bits bus
width declared in the Device Tree being considered as a 16 bits bus
width when configuring the hardware.

This bug in mvebu-devbus driver was compensated by a symetric mistake
in the Armada XP GP Device Tree: a 8 bits bus width was declared, even
though the hardware actually has a 16 bits bus width connection with
the NOR flash.

Now that we have fixed the mvebu-devbus driver to behave according to
its Device Tree binding, this commit fixes the problematic Device Tree
files as well.

This bug was introduced in commit
da8d1b3835 ('ARM: mvebu: Add support for
NOR flash device on Armada XP-GP board') which was merged in v3.10.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1397489361-5833-3-git-send-email-thomas.petazzoni@free-electrons.com
Fixes: da8d1b3835 ('ARM: mvebu: Add support for NOR flash device on Armada XP-GP board')
Cc: stable@vger.kernel.org # v3.10+
Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-04-25 21:23:33 +00:00
Linus Torvalds
3fe89d2e76 ARM: SoC fixes for 3.15-rc3:
Since we didn't get around to collect fixes in time for -rc2 over
 the easter vacation, this one is unfortunately a bit larger than
 we'd like for an -rc3 merge. A large set of the changes is in the
 device tree sources, so I'm splitting out the description between
 code changes and DT changes. Aside from omap and versatile express,
 the actual code bugs are sporadic and trivial. Here is an overview:
 
   imx:
    - fix video clock settings
    - fix one clock refcounting bug
 
   omap:
    - update defconfig for renamed USB PHY driver
    - fix error handling in gpmc
    - fix N900 video initialization regression
    - fix reression in hwmod code from missing braces
    - fix am43xx and omap3 clocks
    - remove bogus write to voltage control register
 
   pxa:
    - fix build regression from 3.13 header cleanup
 
   rockchip:
    - fix a misleading printk string
 
   shmobile:
    - fix incorrect sound setting on multiple machines
 
   spear:
    - remove incorrect __init section annotation
 
   tegra:
    - remove a stale Kconfig entry
 
   u300:
    - update defconfig
 
   ux500:
    - enable common wireless and sensor drivers in defconfig
    - more defconfig updates
 
   vexpress:
    - fix voltage calculation for opp
    - fix reboot hang and warning
    - fix out-of-bounds array access
    - improve error handling in clock driver
 
   overall:
    - always select CLKSRC_OF in multiplatform builds
 
 And these are the devicetree related changes:
 
   imx:
    - add missing #clock-cell properties
    - fix pinctrl setting in imx6sl-evk
    - fix video endpoint on imx53
    - remove obsolete lvds-channel nodes (multiple patches)
    - add missing second stmpe node
    - fix usb host mode on dmo-edmqmx6 (multiple patches)
    - fix gic node #address-cells to match usage
    - add missing legacy IRQ map for PCIe
    - fix microsom pincontrol setting for rgmii
    - fix fatal typo in touchscreen DT usage for mx5
    - list all RAM present on m53evk and mx53qsb
 
   omap:
    - fix bug in DT handling of gpmc external bus
    - add DT for older revision of beagleboard
    - fix regression after DT node name fixes
    - remove obsolete properties for gpmc
    - fix pinmux comment to match DT it refers to
    - fix newly added dra7xx clock node data
    - add missing clock for USB PHY
 
   mvebu:
    - add missing clock for mdio node
    - fix nonstandard vendor prefixes on i2c nodes
 
   rockchip:
    - fix pin control setting for uart
 
   shmobile:
    - fix typo in DT data for pin control (multiple patches)
    - fix gic node #address-cells to match usage
 
   tegra:
    - fix clock and uart DT representation to match hardware
 
   zynq:
    - add DT nodes for newly added driver
    - add DT properties required for cpufreq-ondemand
 
   overall:
    - restore alphabetic order in Makefile
    - grammar fixes in bindings
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Merge tag 'fixes-3.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "Since we didn't get around to collect fixes in time for -rc2 over the
  easter vacation, this one is unfortunately a bit larger than we'd like
  for an -rc3 merge.

  A large set of the changes is in the device tree sources, so I'm
  splitting out the description between code changes and DT changes.
  Aside from omap and versatile express, the actual code bugs are and
  trivial.  Here is an overview:

  imx:
   - fix video clock settings
   - fix one clock refcounting bug

  omap:
   - update defconfig for renamed USB PHY driver
   - fix error handling in gpmc
   - fix N900 video initialization regression
   - fix reression in hwmod code from missing braces
   - fix am43xx and omap3 clocks
   - remove bogus write to voltage control register

  pxa:
   - fix build regression from 3.13 header cleanup

  rockchip:
   - fix a misleading printk string

  shmobile:
   - fix incorrect sound setting on multiple machines

  spear:
   - remove incorrect __init section annotation

  tegra:
   - remove a stale Kconfig entry

  u300:
   - update defconfig

  ux500:
   - enable common wireless and sensor drivers in defconfig
   - more defconfig updates

  vexpress:
   - fix voltage calculation for opp
   - fix reboot hang and warning
   - fix out-of-bounds array access
   - improve error handling in clock driver

  overall:
   - always select CLKSRC_OF in multiplatform builds

  And these are the devicetree related changes:

  imx:
   - add missing #clock-cell properties
   - fix pinctrl setting in imx6sl-evk
   - fix video endpoint on imx53
   - remove obsolete lvds-channel nodes (multiple patches)
   - add missing second stmpe node
   - fix usb host mode on dmo-edmqmx6 (multiple patches)
   - fix gic node #address-cells to match usage
   - add missing legacy IRQ map for PCIe
   - fix microsom pincontrol setting for rgmii
   - fix fatal typo in touchscreen DT usage for mx5
   - list all RAM present on m53evk and mx53qsb

  omap:
   - fix bug in DT handling of gpmc external bus
   - add DT for older revision of beagleboard
   - fix regression after DT node name fixes
   - remove obsolete properties for gpmc
   - fix pinmux comment to match DT it refers to
   - fix newly added dra7xx clock node data
   - add missing clock for USB PHY

  mvebu:
   - add missing clock for mdio node
   - fix nonstandard vendor prefixes on i2c nodes

  rockchip:
   - fix pin control setting for uart

  shmobile:
   - fix typo in DT data for pin control (multiple patches)
   - fix gic node #address-cells to match usage

  tegra:
   - fix clock and uart DT representation to match hardware

  zynq:
   - add DT nodes for newly added driver
   - add DT properties required for cpufreq-ondemand

  overall:
   - restore alphabetic order in Makefile
   - grammar fixes in bindings"

* tag 'fixes-3.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (66 commits)
  ARM: vexpress/TC2: Convert OPP voltage to uV before storing
  power/reset: vexpress: Fix restart/power off operation
  dt: tegra: remove non-existent clock IDs
  clk: tegra: remove non-existent clocks
  ARM: tegra: remove UART5/UARTE from tegra124.dtsi
  ARM: tegra: remove TEGRA_EMC_SCALING_ENABLE
  ARM: Tidy up DTB Makefile entries
  ARM: fix missing CLKSRC_OF on multi-platform
  ARM: spear: add __init to spear_clocksource_init()
  ARM: pxa: hx4700.h: include "irqs.h" for PXA_NR_BUILTIN_GPIO
  arm/mach-vexpress: array accessed out of bounds
  clk: vexpress: NULL dereference on error path
  ARM: OMAP2+: Fix GPMC remap for devices using an offset
  ARM: zynq: dt: Add I2C nodes to Zynq device tree
  ARM: zynq: DT: Add 'clock-latency' property
  ARM: OMAP2+: Fix oops for GPMC free
  ARM: dts: Add support for the BeagleBoard xM A/B
  ARM: dts: Grammar /that will/it will/
  ARM: dts: Grammar /is uses/ is used/
  ARM: OMAP2+: Fix config name for USB3 PHY
  ...
2014-04-25 13:02:02 -07:00
Linus Torvalds
625bba662c File locking related bugfixes for v3.15 (pile #2)
- fix for a long-standing bug in __break_lease that can cause soft lockups
 - renaming of file-private locks to "open file description" locks, and the
   command macros to more visually distinct names.
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Merge tag 'locks-v3.15-2' of git://git.samba.org/jlayton/linux

Pull file locking fixes from Jeff Layton:
 "File locking related bugfixes for v3.15 (pile #2)

   - fix for a long-standing bug in __break_lease that can cause soft
     lockups
   - renaming of file-private locks to "open file description" locks,
     and the command macros to more visually distinct names

  The fix for __break_lease is also in the pile of patches for which
  Bruce sent a pull request, but I assume that your merge procedure will
  handle that correctly.

  For the other patches, I don't like the fact that we need to rename
  this stuff at this late stage, but it should be settled now
  (hopefully)"

* tag 'locks-v3.15-2' of git://git.samba.org/jlayton/linux:
  locks: rename FL_FILE_PVT and IS_FILE_PVT to use "*_OFDLCK" instead
  locks: rename file-private locks to "open file description locks"
  locks: allow __break_lease to sleep even when break_time is 0
2014-04-25 12:40:32 -07:00
Suman Anna
4c05160342 ARM: dts: AM3517: Disable absent IPs inherited from OMAP3
AM3517 inherits OMAP3 dts file, but does not have all the IPs
that are present on OMAP3. This patch disables the following
absent IPs for AM3517: Mailbox, IVA, MMU_ISP, MPU_IVA SmartReflex.

A label had to be added for IVA node in omap3.dtsi to be able to
get a reference to the node for disabling.

Otherwise we get the following warnings during booting:
platform iva.2: Cannot lookup hwmod 'iva'
platform 48094000.mailbox: Cannot lookup hwmod 'mailbox'
platform 480bd400.mmu: Cannot lookup hwmod 'mmu_isp'
platform 480c9000.smartreflex: Cannot lookup hwmod 'smartreflex_mpu_iva'

Signed-off-by: Suman Anna <s-anna@ti.com>
[tony@atomide.com: updated description for the warnings]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-25 09:55:00 -07:00
Suman Anna
4fe5bd5da2 ARM: dts: OMAP2: Fix interrupts for OMAP2420 mailbox
The mailbox module is capable of generating two interrupts
to MPU in OMAP2420, compared to one in OMAP2430. The second
interrupt is to handle interrupts from the additional IVA
processor present only on OMAP2420.

Move the current common mailbox DT node into the SoC
specific files to allow the above differentiation. Also,
added back the interrupt-names on OMAP2420, that were
previously defined in hwmod data.

This fixes regression caused by the recent dropping of
hwmod data in favor for defining it in the .dts files.

Signed-off-by: Suman Anna <s-anna@ti.com>
[tony@atomide.com: updated description]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-25 09:53:43 -07:00
Suman Anna
84d89c3123 ARM: dts: OMAP5: Add mailbox dt node to fix boot warning
Add the mailbox device DT node for OMAP5 SoC. The OMAP5 mailbox
IP is identical to that used in OMAP4.

The OMAP5 hwmod data no longer publishes the module address space,
so this patch fixes the WARN_ON backtrace associated with the
following trace during the kernel boot:
"omap_hwmod: mailbox: doesn't have mpu register target base".

Otherwise we get a warning like this:

WARNING: CPU: 0 PID: 1 at arch/arm/mach-omap2/omap_hwmod.c:2538 _init+0x1c0/0x3dc()
omap_hwmod: mailbox: doesn't have mpu register target base
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.15.0-rc2-00001-gb5e85a0 #45
[<c0015724>] (unwind_backtrace) from [<c00120f4>] (show_stack+0x10/0x14)
[<c00120f4>] (show_stack) from [<c05a1ccc>] (dump_stack+0x78/0x94)
[<c05a1ccc>] (dump_stack) from [<c0042a74>] (warn_slowpath_common+0x6c/0x8c)
[<c0042a74>] (warn_slowpath_common) from [<c0042b28>] (warn_slowpath_fmt+0x30/0x40)
[<c0042b28>] (warn_slowpath_fmt) from [<c0803b40>] (_init+0x1c0/0x3dc)
[<c0803b40>] (_init) from [<c0029c8c>] (omap_hwmod_for_each+0x34/0x5c)
[<c0029c8c>] (omap_hwmod_for_each) from [<c08042b0>] (__omap_hwmod_setup_all+0x24/0x40)
[<c08042b0>] (__omap_hwmod_setup_all) from [<c00088b8>] (do_one_initcall+0x34/0x160)
[<c00088b8>] (do_one_initcall) from [<c07f7bf4>] (kernel_init_freeable+0xfc/0x1c8)
[<c07f7bf4>] (kernel_init_freeable) from [<c059c4f4>] (kernel_init+0x8/0xe4)
[<c059c4f4>] (kernel_init) from [<c000eaa8>] (ret_from_fork+0x14/0x2c)

Signed-off-by: Suman Anna <s-anna@ti.com>
[tony@atomide.com: updated description to for the warning]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-25 09:49:02 -07:00
Joel Fernandes
da0159fdb5 ARM: OMAP5: Switch to THUMB mode if needed on secondary CPU
On my DRA7 system, when the kernel is built in Thumb-2 mode, the secondary CPU
(Cortex A15) fails to come up causing SMP boot on second CPU to timeout. This
seems to be because the CPU is in ARM mode once the ROM hands over control to
the kernel.  Switch to Thumb-2 mode if required once the kernel is control of
secondary CPU. On OMAP4 on the other hand, it appears to be in Thumb-2 mode on
entry so this is not required and SMP boot works as is.

Also corrected a spurious '+' and updated copyright information.

Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Nishanth Menon <nm@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-25 09:48:20 -07:00
Dave Gerlach
1ff3859e7e ARM: dts: am437x-gp-evm: Do not reset gpio5
Do not reset GPIO5 at boot-up because GPIO5_7 is used
on AM437x GP-EVM to control VTT regulators on DDR3.
Without this some GP-EVM boards will fail to boot because
of DDR3 corruption.

Reported-by: Nishanth Menon <nm@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-25 09:48:19 -07:00
Javier Martinez Canillas
ef139e130c ARM: dts: omap3-igep0020: use SMSC9221 timings
The IGEPv2 board has a SMSC LAN9221i ethernet chip and not a
SMSC LAN911x connected to the GPMC. Each chip needs different
timings in order to operate correctly so is wrong to include
omap-gpmc-smsc911x.dtsi instead of omap-gpmc-smsc9221.dtsi.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
[tony@atomide.com: this is needed to avoid potential memory corruption]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-25 09:30:00 -07:00
Alex Elder
eeda4cb92e ARM: bcm: rename "kona.h" and "kona.c"
These source files contain only level-2 cache initialization code,
so rename them to make that fact more obvious.

Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
2014-04-25 08:51:38 -04:00
Alex Elder
ed24f446ab ARM: bcm: rewrite commentary for bcm_kona_do_smc()
The block of comments in bcm_kona_do_smc() are somewhat confusing.
This patch attempts to clarify what's going on.

Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
2014-04-25 08:51:37 -04:00
Alex Elder
8b9c550e37 ARM: bcm: use inline assembly for "smc" request
Move the code that implements the "smc" call into a C function that
uses inline assembly.  This allows us to make that function private,
and enables us to get rid of "arch/arm/mach-bcm/bcm_kona_smc_asm.S".
Rename what had been the "buffer_addr" argument to be "buffer_phys"
so it's consistent with other usage in this file.

Since it's now easy to do, verify that r12 contains SEC_EXIT_NORMAL
upon completion of the SMC.  There really isn't a good way to handle
the abnormal completion of a secure monitor request.

Since "bcm_kona_smc.h" is now only included from C files, eliminate
the #ifndef __ASSEMBLY__.

Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
2014-04-25 08:51:36 -04:00
Alex Elder
d5c627b575 ARM: bcm: tidy up a few includes
Clean up a few header file includes, eliminating a few that are not
really needed and putting in their place some that are.

Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
2014-04-25 08:51:36 -04:00
Alex Elder
7b5fe9c911 ARM: bcm: config option for l2 cache support
Add a new config option ARCH_BCM_MOBILE_L2_CACHE that allows support
for level-2 cache to be enabled or disabled at build time for
BCM218XX and BCM21664 family SoCs.

Build support for SMC only if it's required (currently it's only
required for to support level 2 cache control).

If arch/arm/mach-bcm/kona.c gets compiled, ARCH_BCM_MOBILE_L2_CACHE
must have been selected, which implies CONFIG_CACHE_L2X0 is set.
There is therefore no need to check CONFIG_CACHE_L2X0 at the top
of kona_l2_cache_init(), so get rid of that check.

Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
2014-04-25 08:51:35 -04:00
Alex Elder
35138d52f1 ARM: bcm: don't special-case CPU 0 in bcm_kona_smc()
There's logic in bcm_kona_smc() to ensure __bcm_kona_smc() gets
called on CPU 0; if already executing on CPU 0, that function is
called directly.  The direct call is not protected from interrupts,
however, which is not safe.

Note that smp_call_function_single() is designed to handle the case
where the target cpu is the current one.  It also gets a reference
to the CPU and disables IRQs across the call.

So we can simplify things and at the same time be protected against
interrupts by calling smp_call_function_single() unconditionally.

Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
2014-04-25 08:51:34 -04:00
Alex Elder
6c90f10864 ARM: bcm: have bcm_kona_smc() return request result
Currently it is assumed that SEC_ROM_RET_OK is the only valid "good"
result of a secure monitor request.  However the values that can be
returned by a secure monitor request are dependent on which service
id was provided.

We therefore should handle the result in a request-dependent way.
The most natural way to do that is to have the initiator of the
request--where bcm_kona_smc() is called--handle the result in a way
appropriate to the request.

An "smc" operation must be performed only on core 0, while the
request can be initiated from any core.  To pass back the request
result, we add a new field to the bcm_kona_smc_data structure, and
have bcm_kona_smc() return that value rather than 0.

There's only one caller right now.  Move the existing check of the
result out of __bcm_kona_smc() and into the kona_l2_cache_init()
where the SSAPI_ENABLE_L2_CACHE request is initiated.

Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
2014-04-25 08:51:33 -04:00
Alex Elder
c64756cca2 ARM: bcm: clean up SMC code
This patch just does some simple cleanup in "bcm_kona_smc.c":
    - Get rid of the secure_bridge_data structure.  Instead, just
      define two globals that record the physical and virtual
      addresses of the SMC arguments buffer.  Use "buffer" instead
      of "bounce" in their names.  Drop of the erroneous __iomem
      annotation for the physical address.
    - Get rid of the initialized flag and just use a non-null buffer
      address to indicate that.
    - Get the size of the memory region when fetching the SMC
      arguments buffer location from the device tree.  Use it to
      call ioremap() directly rather than requiring of_iomap() to
      go look it up again.
    - Do some additional validation on that memory region size.
    - Flush caches unconditionally in __bcm_kona_smc(); nothing
      supplies SSAPI_BRCM_START_VC_CORE as a service id.
    - Drop a needless initialization of "rc" in __bcm_kona_smc().

It also deletes most of the content of "bcm_kona_smc.h" because it's
never actually used and is of questionable value anyway.

Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
2014-04-25 08:51:32 -04:00
Alex Elder
5c4cee2fe8 ARM: bcm: err, don't BUG() on SMC init failures
Several conditions in bcm_kona_smc_init() are handled with BUG_ON().
That function is capable of returning an error, so do that instead.

Also, don't assume of_get_address() returns a valid pointer.

Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
2014-04-25 08:51:32 -04:00
Alex Elder
e80eef33f4 ARM: bcm: use memory accessors for ioremapped area
The pointer used to pass parameters to an "smc" call is produced
through a call to ioremap().  As such, we should be using functions
like writel() to access it.

Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
2014-04-25 08:51:31 -04:00
Alex Elder
1892bbcdd4 ARM: bcm: clean up config and build targets
Currently CONFIG_ARCH_BCM_MOBILE is used to select all (both)
Broadcom mobile SoC families.  Instead, use that only as a config
menu switch, and define specific symbols like ARCH_BCM_281XX to
select a particular SoC family.  If ARCH_BCM_MOBILE is selected, all
of the SoCs will be selected by default, but this way each can be
disabled individually as well.

Note that BCM281xx and BCM21664 both require the SMC and L2 cache
control code, so that code will be built based on ARCH_BCM_MOBILE.

Signed-off-by: Alex Elder <elder@linaro.org>
[mporter: added ARM: to the description]
Signed-off-by: Matt Porter <mporter@linaro.org>
2014-04-25 08:51:30 -04:00
Sebastian Hesselbarth
d93003e8e4 ARM: 8042/1: iwmmxt: allow to build iWMMXt on Marvell PJ4B
Some Marvell PJ4B CPUs also implement iWMMXt extensions. With a
proper check for iWMMXt coprocessors now in place, enable it by
default on PJ4B. While at it, also allow to manually select
the corresponding Kconfig option.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-25 12:07:35 +01:00
Sebastian Hesselbarth
cd1711709f ARM: 8041/1: pj4: fix cpu_is_pj4 check
Commit fdb487f5c9
  ("ARM: 8015/1: Add cpu_is_pj4 to distinguish PJ4 because it
    has some differences with V7")
introduced a cpuid check for Marvell PJ4 processors to fix a
regression caused by adding PJ4 based Marvell Dove into
multi_v7.

Unfortunately, this check is too narrow to catch PJ4 used on
Dove itself and breaks iWMMXt support.

This patch therefore relaxes the cpuid mask to match both PJ4
and PJ4B. Also, rework the given comment about PJ4/PJ4B
modifications to be a little bit more specific about the
differences.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-25 12:07:34 +01:00
Sebastian Hesselbarth
e89f443b18 ARM: 8040/1: pj4: properly detect existence of iWMMXt coprocessor
commit fdb487f5c9
  ("ARM: 8015/1: Add cpu_is_pj4 to distinguish PJ4 because it
    has some differences with V7")
introduced a fix for checking PJ4 cpuid to not use PJ4 specific
coprocessor access on non-PJ4 platforms.

Unfortunately, this in turn broke Marvell Armada 370/XP, both
comprising Marvell PJ4B CPUs without iWMMXt extension. Instead
of only checking for cpuid, which may not be sufficient to
determine iWMMXt support, the presence of iWMMXt coprocessors
can be checked by enabling and reading the Coprocessor ID
register (wCID, register 0 of CP1).

Therefore this adds an explicit check for the presence and correct
wCID value, before enabling iWMMXt capabilities. As a bonus, also
print the iWMMXt version of a detected coprocessor.

This has been tested to properly detect iWMMXt presence/absence on:
- PJ4,  CPUID 0x560f5815, wCID 0x56052001: Marvell Dove, iWMMXt v2
- PJ4B, CPUID 0x561f5811: Marvell Armada 370, no iWMMXt
- PJ4B, CPUID 0x562f5841, wCID 0x56052001: Marvell Armada 1500, iWMMXt v2
- PJ4B, CPUID 0x562f5842: Marvell Armada XP, no iWMMXt

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-25 12:07:34 +01:00
Sebastian Hesselbarth
7d06565989 ARM: 8039/1: pj4: enable iWMMXt only if CONFIG_IWMMXT is set
This fixes PJ4 coprocessor init to only expose iWMMXt capabilities,
if the corresponding kernel support for iWMMXt is enabled.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-25 12:07:33 +01:00
Sebastian Hesselbarth
c2f07fe64d ARM: 8038/1: iwmmxt: explicitly check for supported architectures
iwmmxt.S requires special treatment of coprocessor access registers
for PJ4 and XScale-based CPUs. It only checks for CPU_PJ4 and drops
down to XScale-based treatment on all other architectures.

As some PJ4B also come with iWMMXt and also need PJ4 treatment,
rework the corresponding preprocessor directives to explicitly
check for supported architectures and fail on unsupported ones.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-25 12:07:32 +01:00
Arnd Bergmann
76e7745e8e arm: Xilinx Zynq DT fixes for v3.15
- Enable Zynq I2c
 - Fix cpufreq DT binding
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Merge tag 'zynq-dt-fixes-for-3.15' of git://git.xilinx.com/linux-xlnx into fixes

arm: Xilinx Zynq DT fixes for v3.15

- Enable Zynq I2c
- Fix cpufreq DT binding

* tag 'zynq-dt-fixes-for-3.15' of git://git.xilinx.com/linux-xlnx:
  ARM: zynq: dt: Add I2C nodes to Zynq device tree
  ARM: zynq: DT: Add 'clock-latency' property

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-04-25 11:22:20 +02:00
Arnd Bergmann
1fc52762e3 ARM Versatile Express fixes for 3.15
This series contains straight-forward fixes for different
 Versatile Express infrastructure drivers:
 
 - NULL pointer dereference on the error path in the clk driver
 - out of boundary array access in the dcscb driver
 - broken restart/power off implementation
 - mis-interpreted voltage unit in the spc driver
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Merge tag 'vexpress/fixes-for-3.15' of git://git.linaro.org/people/pawel.moll/linux into fixes

ARM Versatile Express fixes for 3.15

This series contains straight-forward fixes for different
Versatile Express infrastructure drivers:

- NULL pointer dereference on the error path in the clk driver
- out of boundary array access in the dcscb driver
- broken restart/power off implementation
- mis-interpreted voltage unit in the spc driver

* tag 'vexpress/fixes-for-3.15' of git://git.linaro.org/people/pawel.moll/linux:
  ARM: vexpress/TC2: Convert OPP voltage to uV before storing
  power/reset: vexpress: Fix restart/power off operation
  arm/mach-vexpress: array accessed out of bounds
  clk: vexpress: NULL dereference on error path

Includes an update to 3.15-rc2

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-04-24 23:46:58 +02:00
Linus Torvalds
ff1e5b447e spi: Fixes for v3.15
A few driver specific fixes here:
 
  - SH HSPI was dealing with its clocks incorrectly which meant it didn't
    work on some SoCs, fixing this also requires a small fix to one of
    the SoC clock trees to avoid breaking existing users.
  - The SiRF driver appears to have had several quality problems, it's
    fairly new and not widely used so this isn't too worrying.
  - A brute force fix for excessive locking in the Atmel driver, it needs
    further investigation but this deals with the immediate issue.
  - A build fix for the Blackfin driver.
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Merge tag 'spi-v3.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A few driver specific fixes here:

   - SH HSPI was dealing with its clocks incorrectly which meant it
     didn't work on some SoCs, fixing this also requires a small fix to
     one of the SoC clock trees to avoid breaking existing users.
   - The SiRF driver appears to have had several quality problems, it's
     fairly new and not widely used so this isn't too worrying.
   - A brute force fix for excessive locking in the Atmel driver, it
     needs further investigation but this deals with the immediate
     issue.
   - A build fix for the Blackfin driver"

* tag 'spi-v3.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: atmel: Fix scheduling while atomic bug
  spi: sh-hspi: Do not specifically request shyway_clk clock
  ARM: shmobile: r8a7778: Use clks as MSTP007 parent
  spi: sirf: make GPIO chipselect function work well
  spi: sirf: set SPI controller in RISC IO chipselect mode
  spi: sirf: correct TXFIFO empty interrupt status bit
  spi: bfin5xx: fix build error
2014-04-24 12:01:05 -07:00
Linus Torvalds
92891ed6b1 Merge branch 'fixes_for_v3.15' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping
Pull dma-mapping fix from Marek Szyprowski:
 "A small fix for dma-mapping subsystem for ARM"

* 'fixes_for_v3.15' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
  arm: dma-mapping: Fix mapping size value
2014-04-24 09:58:57 -07:00
Punit Agrawal
cf2e0a73ca ARM: vexpress/TC2: Convert OPP voltage to uV before storing
The SPC stores voltage in mV while the code assumes it was returning
uV. Convert the returned voltage to uV before storing. Also fix the
comment depicting voltage to uV.

Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2014-04-24 17:20:50 +01:00
Stephen Warren
862f0eea38 ARM: tegra: remove UART5/UARTE from tegra124.dtsi
Tegra124 only has 4 UARTs. Parts of the documentation hint at a fifth
UART, but this appears to be left-over from earlier SoC documentation.
Remove the non-existent DT node for UART5.

Cc: <stable@vger.kernel.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-04-24 15:36:40 +02:00
Arnd Bergmann
f126776a21 Fixes for omaps, mostly to fix some GPMC, DSS and USB issues for
device tree based booting. And turns out BeagleBoard xM A/B
 needs it's own minimal dts in addition to the related u-boot
 changes. Also few minor documentation and typo fixes are merged
 to get them out of the way.
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Merge tag 'omap-for-v3.15/fixes-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Fixes for omaps, mostly to fix some GPMC, DSS and USB issues for
device tree based booting. And turns out BeagleBoard xM A/B
needs it's own minimal dts in addition to the related u-boot
changes. Also few minor documentation and typo fixes are merged
to get them out of the way.

* tag 'omap-for-v3.15/fixes-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Fix GPMC remap for devices using an offset
  ARM: OMAP2+: Fix oops for GPMC free
  ARM: dts: Add support for the BeagleBoard xM A/B
  ARM: dts: Grammar /that will/it will/
  ARM: dts: Grammar /is uses/ is used/
  ARM: OMAP2+: Fix config name for USB3 PHY
  ARM: dts: am335x: update USB DT references
  ARM: dts: OMAP2+: remove uses of obsolete gpmc,device-nand
  ARM: AM335X: EVM: fix pinmux documentation in devicetree
  ARM: OMAP2+: N900: remove omapdss init for DT boot
  ARM: dts: dra7xx-clocks: Correct mcasp2_ahclkx_mux bit-shift
  ARM: dts: omap5: Add clocks to USB3 PHY node
  ARM: OMAP2+: hwmod: fix missing braces in _init()
  ARM: AM43xx: fix dpll init in bypass mode
  ARM: OMAP3: hwmod data: Correct clock domains for USB modules
  ARM: OMAP3: PM: remove access to PRM_VOLTCTRL register

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-04-24 15:35:58 +02:00
Arnd Bergmann
072c8b3fe2 This is a patch set for some ST-Ericsson devices:
- Updates the Ux500 (U8500) defconfig
 - Selects PARTITION_ADVANCED for Ux500 and U300
 - Configure in IIO sensor drivers for the Ux500
 - Configure in the CW1200 WLAN chip for the Ux500
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Merge tag 'ux500-defconfig-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into fixes

This is a patch set for some ST-Ericsson devices:
- Updates the Ux500 (U8500) defconfig
- Selects PARTITION_ADVANCED for Ux500 and U300
- Configure in IIO sensor drivers for the Ux500
- Configure in the CW1200 WLAN chip for the Ux500

* tag 'ux500-defconfig-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
  ARM: ux500: configure for CW1200 WLAN chip
  ARM: ux500: configure in sensors
  ARM: u300: u300_defconfig: Enable PARTITION_ADVANCED
  ARM: ux500: u8500_defconfig: Enable PARTITION_ADVANCED
  ARM: ux500: update defconfig

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-04-24 15:35:14 +02:00
Arnd Bergmann
6e1ae422c3 Renesas ARM Based SoC Fixes Updates for v3.15
r8a7791 (R-Car M2) based koelsch board
 * Correct renesas,gpios to renesas,groups in sd[012] pfc
 
 8a7790 (R-Car H2) based lager board
 * Correct SND_SOC_DAIFMT_CBx_CFx flags
 
 r8a7740 (R-Mobile A1) SoC
 * Drop address cells from GIC node
 
 r8a7740 (R-Mobile A1) based Armadillo800 EVA board
 * Correct SND_SOC_DAIFMT_CBx_CFx flags
 
 sh73a0 (SH-Mobile AG5) SoC
 * Drop address cells from GIC node
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Merge tag 'renesas-fixes-for-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes

Renesas ARM Based SoC Fixes Updates for v3.15

r8a7791 (R-Car M2) based koelsch board
* Correct renesas,gpios to renesas,groups in sd[012] pfc

8a7790 (R-Car H2) based lager board
* Correct SND_SOC_DAIFMT_CBx_CFx flags

r8a7740 (R-Mobile A1) SoC
* Drop address cells from GIC node

r8a7740 (R-Mobile A1) based Armadillo800 EVA board
* Correct SND_SOC_DAIFMT_CBx_CFx flags

sh73a0 (SH-Mobile AG5) SoC
* Drop address cells from GIC node

* tag 'renesas-fixes-for-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: koelsch: correct renesas,gpios to renesas,groups in sd[012] pfc
  ARM: shmobile: r8a7740: drop address cells from GIC node
  ARM: shmobile: sh73a0: drop address cells from GIC node
  ARM: shmobile: armadillo800eva: fixup SND_SOC_DAIFMT_CBx_CFx flags
  ARM: shmobile: lager: fixup SND_SOC_DAIFMT_CBx_CFx flags

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-04-24 15:34:34 +02:00
Arnd Bergmann
8a52a116d1 Fifth Round of Renesas ARM Based SoC DT Updates for v3.15
Correct renesas,groups in SDHI nodes of for r8a7790 (R-Car H2) based
 Lager board.
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Merge tag 'renesas-dt5-for-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes

Fifth Round of Renesas ARM Based SoC DT Updates for v3.15

Correct renesas,groups in SDHI nodes of for r8a7790 (R-Car H2) based
Lager board.

* tag 'renesas-dt5-for-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: lager: correct renesas,gpios to renesas,groups in sd[02] pfc

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-04-24 15:34:00 +02:00
Arnd Bergmann
59209c9a34 Fixing uart-rx pull settings and a copy'n'paste error in a smp message
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Merge tag 'v3.15-rockchip-fixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into fixes

Fixing uart-rx pull settings and a copy'n'paste error in a smp message

* tag 'v3.15-rockchip-fixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  ARM: rockchip: fix copy'n'paste error in smp error messages
  ARM: rockchip: rk3188: enable pull-ups on UART RX pins

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-04-24 15:33:31 +02:00
Arnd Bergmann
9dbb7e2451 The i.MX fixes for 3.15:
- A couple of dts changes for the fallout of imx-drm binding update
  - Parent DI clocks to video PLL for better HDMI support
  - PCIe interrupt mapping and GIC node fixes
  - A series of edmqmx6 board fixes
  - Other small and random fixes on imx5 and imx6 dts
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Merge tag 'imx-fixes-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

The i.MX fixes for 3.15:
 - A couple of dts changes for the fallout of imx-drm binding update
 - Parent DI clocks to video PLL for better HDMI support
 - PCIe interrupt mapping and GIC node fixes
 - A series of edmqmx6 board fixes
 - Other small and random fixes on imx5 and imx6 dts

* tag 'imx-fixes-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: i.MX6: ipu_di_sel clocks can set parent rates
  ARM: imx6q: clk: Parent DI clocks to video PLL via di_pre_sel
  ARM: dts: imx: add required #clock-cells for fixed-clock
  ARM: dts: vybrid: drop address and size cells from GIC node
  ARM: dts: imx6sl-evk: Add an entry for MX6SL_PAD_ECSPI1_SS0__GPIO4_IO11
  ARM: dts: imx53: fix apparent copy/paste error
  ARM: dts: imx6q-gw5xxx: remove dead 'crtcs' property
  ARM: dts: imx53-tx53: add IPU DI ports and endpoints
  ARM: dts: imx6: edmqmx6: add second STMPE
  ARM: dts: imx6: edmqmx6: USB H1 only supports host mode
  ARM: dts: imx6: edmqmx6: Do not use the OTG switch as VBUS regulator
  ARM: dts: imx6: edmqmx6: Fix usbotg id pin
  ARM: dt: microsom: don't set bit 7 for ethernet mux settings
  ARM: imx6q-clk: parent lvds_gate from lvds_sel
  ARM: dts: imx: drop invalid size and address cells properties
  ARM: dts: mx5: fix wrong stmpe-ts bindings
  ARM: dts: imx53-m53evk: Fix memory region description
  ARM: dts: imx53-qsb-common: Fix memory region description
  ARM: dts: imx6: add PCIe interrupt mapping properties

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-04-24 15:30:53 +02:00
Arnd Bergmann
191bcd8120 mvebu DT fixes-non-critical (for v3.15-rc1)
- kirkwood
     - add some missing vendor prefixes to keep checkpatch happy
 
  - mvebu
     - add clock ref to mdio node on 370/XP/38x
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Merge tag 'mvebu-dt-fixes-non-crit-3.15' of git://git.infradead.org/linux-mvebu into fixes

mvebu DT fixes-non-critical (for v3.15-rc1)

 - kirkwood
    - add some missing vendor prefixes to keep checkpatch happy

 - mvebu
    - add clock ref to mdio node on 370/XP/38x

* tag 'mvebu-dt-fixes-non-crit-3.15' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: ensure the mdio node has a clock reference on Armada 38x
  ARM: mvebu: ensure the mdio node has a clock reference on Armada 370/XP
  ARM: Kirkwood: DT: Add missing vendor prefix
  ARM: Kirkwood: Fix Atmel vendor prefix

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-04-24 15:30:16 +02:00
Paul Bolle
cab4d50389 ARM: tegra: remove TEGRA_EMC_SCALING_ENABLE
Commit a7cbe92cef ("ARM: tegra: remove tegra EMC scaling driver")
removed the only user of TEGRA_EMC_SCALING_ENABLE. Remove its Kconfig
entry too.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-04-24 15:29:12 +02:00
Domenico Andreoli
af81c08c28 ARM: Tidy up DTB Makefile entries
Few things were out of order:

- removed ARCH_BCM2835 duplicate
- shuffled ARCH_BCM_5301X, ARCH_U8500 and ARCH_U300 around so to keep the
  list sorted

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Signed-by: Domenico Andreoli <domenico.andreoli@linux.com>

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-04-24 15:28:47 +02:00
Rob Herring
6d0add405a ARM: fix missing CLKSRC_OF on multi-platform
In commit ddb902cc34 (ARM: centralize common multi-platform kconfig
options), CLKSRC_OF was removed from some platforms, but not added to
ARCH_MULTIPLATFORM. Fix this.

Reported-by: Lauri Hintsala <lauri.hintsala@bluegiga.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-04-24 15:28:20 +02:00
Alex Elder
1be5f69216 ARM: spear: add __init to spear_clocksource_init()
I get a build warning because spear_clocksource_init() calls
clocksource_mmio_init(), but it doesn't have an __init annotation.
Fix that.

Signed-off-by: Alex Elder <elder@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-04-24 15:28:00 +02:00
Andrea Adami
c02b50e90b ARM: pxa: hx4700.h: include "irqs.h" for PXA_NR_BUILTIN_GPIO
hx4700 needs the same fix as in
9705e74671
"ARM: pxa: fix various compilation problems"

Fix build errors. Initial one is:
/linux/arch/arm/mach-pxa/include/mach/hx4700.h:18:32: error:
 'PXA_NR_BUILTIN_GPIO' undeclared here (not in a function)
|  #define HX4700_ASIC3_GPIO_BASE PXA_NR_BUILTIN_GPIO

Cc: stable@vger.kernel.org # v3.13+
Signed-off-by: Andrea Adami <andrea.adami@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-04-24 15:26:39 +02:00
Julien Grall
adc01864eb arm/xen: Remove definiition of virt_to_pfn in asm/xen/page.h
virt_to_pfn has been defined in asm/memory.h by the commit e26a9e0 "ARM: Better
virt_to_page() handling"

This will result of a compilation warning when CONFIG_XEN is enabled.

arch/arm/include/asm/xen/page.h:80:0: warning: "virt_to_pfn" redefined [enabled by default]
 #define virt_to_pfn(v)          (PFN_DOWN(__pa(v)))
 ^
In file included from arch/arm/include/asm/page.h:163:0,
                 from arch/arm/include/asm/xen/page.h:4,
                 from include/xen/page.h:4,
                 from arch/arm/xen/grant-table.c:33:

The definition in memory.h is nearly the same (it directly expand PFN_DOWN),
so we can safely drop virt_to_pfn in xen include.

Signed-off-by: Julien Grall <julien.grall@linaro.org>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2014-04-24 14:04:57 +01:00
Ian Campbell
5e40704ed2 arm: xen: implement multicall hypercall support.
As part of this make the usual change to xen_ulong_t in place of unsigned long.
This change has no impact on x86.

The Linux definition of struct multicall_entry.result differs from the Xen
definition, I think for good reasons, and used a long rather than an unsigned
long. Therefore introduce a xen_long_t, which is a long on x86 architectures
and a signed 64-bit integer on ARM.

Use uint32_t nr_calls on x86 for consistency with the ARM definition.

Build tested on amd64 and i386 builds. Runtime tested on ARM.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2014-04-24 13:09:46 +01:00
Heinrich Schuchardt
bb6dd5757c arm/mach-vexpress: array accessed out of bounds
dcscb_allcpus_mask is an array of size 2.

The index variable cluster has to be checked against this limit
before accessing the array.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2014-04-24 11:41:12 +01:00
Linus Torvalds
db725c88c7 Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "Various fixes and post-merge window updates.  Included here are:
   - ensure Kconfig things which should be sorted remain sorted
   - fix three big-endian bugs which crept in during the last merge
     window
   - add the renameat2 syscall
   - fix big.LITTLE switcher initialisation checks
   - fix kdump vmcore for LPAE kernels"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: add renameat2 syscall
  ARM: keep arch/arm/Kconfig and arch/arm/mm/Kconfig select entries sorted
  ARM: 8033/1: fix big endian __pv_phys_pfn_offset size related issue
  ARM: 8032/1: bL_switcher: fix validation check before its activation
  ARM: 8030/1: ARM : kdump : add arch_crash_save_vmcoreinfo
  ARM: 8027/1: fix do_div() bug in big-endian systems
  ARM: 8026/1: Fix emulation of multiply accumulate instructions
  ARM: 8024/1: Keep DEBUG_UART_{PHYS,VIRT} entries sorted
2014-04-23 16:48:56 -07:00
Tony Lindgren
dcf2191933 ARM: dts: Fix GPMC timings for LAN9220
I've noticed occasional random oopsing on my gateway
machine since I upgraded it to use device tree based
booting. As this machine has worked reliably before
that for a few years, pretty much the only difference
was narrowed down to the GPMC timings. Turns out that
for legacy based booting we are using bootloader timings
for GPMC for smsc911x. With device tree we are passing
the timings in the .dts file, and the device tree
timings are not quite suitable for LAN9920.

Enabling DEBUG in gpmc.c I noticed that the device tree
configured timings are different from the the known
working bootloader timings. So let's fix the timings to
match the bootloader timings when looked at the gpmc
dmesg output with DEBUG enabled.

The changes were done by multiplying the bootloader
tick values by six to get the nanosecond value for
device tree. This is not generic from the device point
of view as the calculations should be based on the device
timings. Anyways, further improvments can be done based
on the timings documentation for LAN9220. But let's first
get things to a known good working state.

Note that we still need to change the timings also for
sb-t35 also as it has two LAN9220 instances on GPMC and
we can currently include the generic timings only once.

Also note that any boards that have LAN9221 instead of
LAN9220 should be updated to use omap-gpmc-smsc9221.dtsi
instead of omap-gpmc-smsc911x.dtsi. The LAN9221 timings
are different from LAN9220 timings.

Cc: Christoph Fritz <chf.fritz@googlemail.com>
Cc: Dmitry Lifshitz <lifshitz@compulab.co.il>
Cc: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-23 11:30:09 -07:00
Tony Lindgren
de9949a45e ARM: dts: Fix GPMC Ethernet timings for omap cm-t sbc-t boards for device tree
Looks like we have wrong GPMC timings we have for the cm-t and
sbc-t boards. This can cause occasional strange errors with at
least doing an rsync of large files or doing apt-get dist-upgrade.

Let's fix the issue in two phases. First let's simplify cm-t and
sbc-t to use the shared omap-gpmc-smsc911x.dtsi to avoid fixing
the issue in multiple places. Then we can fix the timings in
a single place with a follow-up patch.

Cc: Dmitry Lifshitz <lifshitz@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-23 11:29:49 -07:00
Tony Lindgren
20f670dcc0 ARM: dts: Fix bad OTG muxing for cm-t boards
Looks like the OTG pins are off by 2 and we get this:

pinctrl-single 48002030.pinmux: pin 480021a0.0 already requested by 49020000.serial; cannot claim for 480ab000.usb_otg_hs
pinctrl-single 48002030.pinmux: pin-184 (480ab000.usb_otg_hs) status -22
pinctrl-single 48002030.pinmux: could not request pin 184 (480021a0.0) from group pinmux_hsusb0_pins  on device pinctrl-single
musb-omap2430 480ab000.usb_otg_hs: Error applying setting, reverse things back

That's probably because the TRM lists the values as
32-bit registers so every second needs 2 added to the
address. The OTG pin start range must start from
0x21a2, not 0x21a0.

Cc: Dmitry Lifshitz <lifshitz@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-23 11:09:38 -07:00
Tony Lindgren
fb677ef70b ARM: OMAP2+: Fix GPMC remap for devices using an offset
At least the smc91x driver expects the device to be at 0x300
offset from bus base address. This does not work currently
for GPMC when booted in device tree mode as it attempts to
remap the the allocated GPMC partition to the address
configured by the device tree plus the device offset.

Note that this works just fine when booted with legacy mode.

Let's fix the issue by just ignoring any device specific
offset while remapping. And let's make sure the remap
address confirms to the GPMC 16MB minimum granularity
as listed in the TRM for GPMC_CONFIG7 BASEADDRESS bits.

Otherwise we can get something like this:

omap-gpmc 6e000000.gpmc: cannot remap GPMC CS 1 to 0x01000300

Cc: Pekon Gupta <pekon@ti.com>
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-23 11:09:22 -07:00
Ritesh Harjani
59f0f119e8 arm: dma-mapping: Fix mapping size value
68efd7d2fb("arm: dma-mapping: remove order parameter from
arm_iommu_create_mapping()") is causing kernel panic
because it wrongly sets the value of mapping->size:

Unable to handle kernel NULL pointer dereference at virtual
address 000000a0
pgd = e7a84000
[000000a0] *pgd=00000000
...
PC is at bitmap_clear+0x48/0xd0
LR is at __iommu_remove_mapping+0x130/0x164

Fix it by correcting mapping->size value.

Signed-off-by: Ritesh Harjani <ritesh.harjani@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2014-04-23 15:07:00 +02:00
Mark Brown
201f9e4dd5 Merge remote-tracking branches 'spi/fix/atmel', 'spi/fix/bfin5xx', 'spi/fix/hspi' and 'spi/fix/sirf' into spi-linus 2014-04-23 13:50:18 +01:00
Geert Uytterhoeven
ae107d0613 dt: Fix binding typos in clock-names and interrupt-names
s/interrupts-names/interrupt-names/g
s/clocks-names/clock-names/g

Some of the binding files and device tree files get this wrong and the
kernel won't be able to pick it up. Fix them up now so that they don't
get widely used.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by : Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
2014-04-23 13:03:57 +01:00
Miklos Szeredi
556d3f7f4d ARM: add renameat2 syscall
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
[dropped arch/arm/include/asm/unistd.h changes --rmk]
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-23 11:27:42 +01:00
Russell King
51aaf81fae ARM: keep arch/arm/Kconfig and arch/arm/mm/Kconfig select entries sorted
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-23 09:31:10 +01:00
Greg Kroah-Hartman
8b425aa193 First found of IIO fixes for the 3.15 cycle.
* Fix the platform data support for the at91 adc driver.
 * A couple of related follow up patches get the support working again
   for at91sam9260 and at91sam9g45 as the earlier patch results in a device
   name change.
 * A default timer value in the at91 adc driver was bonkers.  Make it sane.
 * Fix incorrect reporting of the integration time for the cm32181 light sensor
 * Fix a missing break in the ad2s1200 driver which would have give a false
   error return.
 * Make sure buffer scan mask queries from userspace return 0/1 rather than
   a fairly random value depending on their implementation of test_bit
 * Fix leak of the i2c client and a null pointer dereference in the cm36651
   driver.
 * Fix a build warning on avr32 for the mxs-lradc (not exactly a critical
   combination - but the issue was real).
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Merge tag 'iio-fixes-for-3.15a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

First found of IIO fixes for the 3.15 cycle.

* Fix the platform data support for the at91 adc driver.
* A couple of related follow up patches get the support working again
  for at91sam9260 and at91sam9g45 as the earlier patch results in a device
  name change.
* A default timer value in the at91 adc driver was bonkers.  Make it sane.
* Fix incorrect reporting of the integration time for the cm32181 light sensor
* Fix a missing break in the ad2s1200 driver which would have give a false
  error return.
* Make sure buffer scan mask queries from userspace return 0/1 rather than
  a fairly random value depending on their implementation of test_bit
* Fix leak of the i2c client and a null pointer dereference in the cm36651
  driver.
* Fix a build warning on avr32 for the mxs-lradc (not exactly a critical
  combination - but the issue was real).
2014-04-22 21:29:20 -07:00
Victor Kamensky
e3892e9160 ARM: 8033/1: fix big endian __pv_phys_pfn_offset size related issue
Fix e26a9e00af 'ARM: Better
virt_to_page() handling' replaced __pv_phys_offset with
__pv_phys_pfn_offset. Also note that size of __pv_phys_offset
was quad but size of __pv_phys_pfn_offset is word. Instruction
that used to update __pv_phys_offset which address is in r6
had to update low word of __pv_phys_offset so it used #LOW_OFFSET
macro for store offset. Now when size of __pv_phys_pfn_offset is
word, no difference between little endian and big endian should
exist - i.e no offset should be used when __pv_phys_pfn_offset
is stored.

Note that for little endian image proposed change is noop,
since in little endian case #LOW_OFFSET is defined 0 anyway.

Reported-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-22 22:24:00 +01:00
Nicolas Pitre
4530e4b6a4 ARM: 8032/1: bL_switcher: fix validation check before its activation
The switcher should not depend on MAX_CLUSTER to determine ifit should
be activated or not. In a multiplatform kernel binary it is possible to
have dual-cluster and quad-cluster platforms configured in. In that case
MAX_CLUSTER which is a build time limit should be 4 and that shouldn't
prevent the switcher from working if the kernel is booted on a b.L
dual-cluster system.

In bL_switcher_halve_cpus() we already have a runtime validation check
to make sure we're dealing with only two clusters, so booting on a quad
cluster system will be caught and switcher activation aborted.

However, the b.L switcher must ensure the MCPM layer is initialized on
the booted hardware before doing anything.  The mcpm_is_available()
function is added to that effect.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Abhilash Kesavan <kesavan.abhilash@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-22 22:23:59 +01:00
Liu Hua
56b700fd6f ARM: 8030/1: ARM : kdump : add arch_crash_save_vmcoreinfo
For vmcore generated by LPAE enabled kernel, user space
utility such as crash needs additional infomation to
parse.

So this patch add arch_crash_save_vmcoreinfo as what PAE enabled
i386 linux does.

Cc: <stable@vger.kernel.org>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Liu Hua <sdu.liu@huawei.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-22 22:23:58 +01:00
Xiangyu Lu
80bb3ef109 ARM: 8027/1: fix do_div() bug in big-endian systems
In big-endian systems, "%1" get the most significant part of the value, cause the instruction to get the wrong result.

When viewing ftrace record in big-endian ARM systems, we found that
the timestamp errors:

swapper-0   [001] 1325.970000:   0:120:R ==> [001]    16:120:R events/1
events/1-16 [001] 1325.970000:   16:120:S ==> [001]    0:120:R swapper
swapper-0   [000] 1325.1000000:  0:120:R   + [000]    15:120:R events/0
swapper-0   [000] 1325.1000000:  0:120:R ==> [000]    15:120:R events/0
swapper-0   [000] 1326.030000:   0:120:R   + [000]  1150:120:R sshd
swapper-0   [000] 1326.030000:   0:120:R ==> [000]  1150:120:R sshd

When viewed ftrace records, it will call the do_div(n, base) function, which achieved arch/arm/include/asm/div64.h in. When n = 10000000, base = 1000000, in do_div(n, base) will execute "umull %Q0, %R0, %1, %Q2".

Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Cc: <stable@vger.kernel.org> # 2.6.20+
Signed-off-by: Alex Wu <wuquanming@huawei.com>
Signed-off-by: Xiangyu Lu <luxiangyu@huawei.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-22 22:23:57 +01:00
Rob Herring
e7062b1015 ARM: qcom: clean-up unneeded kconfig selects
Multi-platform support implies all these options are already selected and
individual platforms don't need to select them.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: David Brown <davidb@codeaurora.org>
Cc: linux-arm-msm@vger.kernel.org
2014-04-22 14:33:27 -05:00
Rob Herring
9f0db8b9c4 ARM: bcm: clean-up unneeded kconfig selects
Multi-platform support implies all these options are already selected and
individual platforms don't need to select them.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Christian Daudt <bcm@fixthebug.org>
Cc: Matt Porter <mporter@linaro.org>
Cc: bcm-kernel-feedback-list@broadcom.com
2014-04-22 14:33:27 -05:00
Rob Herring
55400f3a1f ARM: mvebu: clean-up unneeded kconfig selects
Multi-platform support implies all these options are already selected and
individual platforms don't need to select them.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
2014-04-22 14:33:27 -05:00
Jeff Layton
0d3f7a2dd2 locks: rename file-private locks to "open file description locks"
File-private locks have been merged into Linux for v3.15, and *now*
people are commenting that the name and macro definitions for the new
file-private locks suck.

...and I can't even disagree. The names and command macros do suck.

We're going to have to live with these for a long time, so it's
important that we be happy with the names before we're stuck with them.
The consensus on the lists so far is that they should be rechristened as
"open file description locks".

The name isn't a big deal for the kernel, but the command macros are not
visually distinct enough from the traditional POSIX lock macros. The
glibc and documentation folks are recommending that we change them to
look like F_OFD_{GETLK|SETLK|SETLKW}. That lessens the chance that a
programmer will typo one of the commands wrong, and also makes it easier
to spot this difference when reading code.

This patch makes the following changes that I think are necessary before
v3.15 ships:

1) rename the command macros to their new names. These end up in the uapi
   headers and so are part of the external-facing API. It turns out that
   glibc doesn't actually use the fcntl.h uapi header, but it's hard to
   be sure that something else won't. Changing it now is safest.

2) make the the /proc/locks output display these as type "OFDLCK"

Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Carlos O'Donell <carlos@redhat.com>
Cc: Stefan Metzmacher <metze@samba.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Frank Filz <ffilzlnx@mindspring.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
2014-04-22 08:23:58 -04:00
Soren Brinkmann
0f6faa3fc9 ARM: zynq: dt: Add I2C nodes to Zynq device tree
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-04-22 09:30:49 +02:00
Soren Brinkmann
b2bf5d4848 ARM: zynq: DT: Add 'clock-latency' property
Specify the 'clock-latency' property to avoid certain cpufreq governors
from refusing to work with the following error:
  ondemand governor failed, too long transition latency of HW, fallback to performance governor

Reported-by: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Tested-by: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-04-22 09:30:49 +02:00
Tony Lindgren
efe8072316 ARM: OMAP2+: Fix oops for GPMC free
If gpmc_cs_remap() fails we will get an error because we are calling
release_resource() on an uninitialized resource. Let's fix that by
checking the resource flags. And while at it, let's also make
gpmc_cs_delete_mem() use the res pointer that we already have to
avoid confusion.

Without this patch we can get the following error:

omap-gpmc 6e000000.gpmc: cannot remap GPMC CS 1 to 0x01000300
Unable to handle kernel NULL pointer dereference at virtual address 00000018
...
(gpmc_cs_free+0x94/0xc8)
(gpmc_probe_generic_child+0x178/0x1ec)
(gpmc_probe_dt+0x1bc/0x2cc)
(gpmc_probe+0x250/0x44c)
(platform_drv_probe+0x3c/0x6c)
(really_probe+0x74/0x208)
(driver_probe_device+0x34/0x50)
(bus_for_each_drv+0x60/0x8c)
(device_attach+0x80/0xa4)
(bus_probe_device+0x88/0xb0)
(device_add+0x320/0x450)
(of_platform_device_create_pdata+0x80/0x9c)
(of_platform_bus_create+0xd0/0x170)
(of_platform_bus_create+0x12c/0x170)
(of_platform_populate+0x60/0x98)
(pdata_quirks_init+0x30/0x48)
(customize_machine+0x20/0x48)
(do_one_initcall+0x2c/0x14c)
(do_basic_setup+0x98/0xd8)
(kernel_init_freeable+0x12c/0x1e0)
(kernel_init+0x8/0xf0)
(ret_from_fork+0x14/0x2c)
Code: e1a04000 e59f0070 eb195136 e5942010 (e5923018)

Cc: Pekon Gupta <pekon@ti.com>
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: tony Lindgren <tony@atomide.com>
2014-04-21 19:26:13 -07:00
Robert Nelson
ef78f3869c ARM: dts: Add support for the BeagleBoard xM A/B
BeagleBoard xM A/B has an inverted usb hub enable line vs the xM C

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
[tony@atomide.com: updated for missing bracket]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-18 16:50:23 -07:00
Tony Lindgren
be2fa17a56 OMAP hwmod and clock fixes for v3.15-rc
A few OMAP hwmod and clock fixes for v3.15-rc.  Probably the most useful
 fix is the AM43xx DPLL patch.
 
 Basic build, boot, and PM test results are here:
 
 http://www.pwsan.com/omap/testlogs/prcm-fixes-a-v3.15-rc/20140411130021/
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Merge tag 'for-v3.15-rc/omap-fixes-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.15/fixes

OMAP hwmod and clock fixes for v3.15-rc

A few OMAP hwmod and clock fixes for v3.15-rc.  Probably the most useful
fix is the AM43xx DPLL patch.

Basic build, boot, and PM test results are here:

http://www.pwsan.com/omap/testlogs/prcm-fixes-a-v3.15-rc/20140411130021/
2014-04-18 16:46:53 -07:00
Tony Lindgren
cdd705dddc Merge branch 'fixes-v3.15-rc1'; commit '390403fd79821bbd0c3a0d83307df2be87047b36' into omap-for-v3.15/fixes 2014-04-18 16:44:38 -07:00
Viresh Kumar
9cc236827f Shiraz has moved
shiraz.hashim@st.com email-id doesn't exist anymore as he has left the
company.  Replace ST's id with shiraz.linux.kernel@gmail.com.

It also updates .mailmap file to fix address for 'git shortlog'.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Shiraz Hashim <shiraz.linux.kernel@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-18 16:40:08 -07:00
Geert Uytterhoeven
b7ab524b93 ARM: dts: Grammar /that will/it will/
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: linux-omap@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-18 16:37:43 -07:00
Geert Uytterhoeven
5c5be9db53 ARM: dts: Grammar /is uses/ is used/
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: linux-omap@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-18 16:37:43 -07:00
Kishon Vijay Abraham I
4883fb2279 ARM: OMAP2+: Fix config name for USB3 PHY
commit a70143 (drivers: phy: usb3/pipe3: Adapt pipe3 driver to Generic PHY
Framework) moved phy-omap-usb3 driver in drivers/usb/phy to drivers/phy and
also renamed the file to phy-ti-pipe3. It also renamed the config from
OMAP_USB3 to TI_PIPE3 in Kconfig. However the config name was not changed in
omap2plus_defconfig. Fixed it here.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-18 16:37:43 -07:00
Leigh Brown
a2f8d6b303 ARM: dts: am335x: update USB DT references
In "ARM: dts: am33xx: correcting dt node unit address for usb", the
usb_ctrl_mod and cppi41dma nodes were updated with the correct register
addresses.  However, the dts files that reference these nodes were not
updated, and those devices are no longer being enabled.

This patch corrects the references for the affected dts files.

Signed-off-by: Leigh Brown <leigh@solinno.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-18 16:37:43 -07:00
Johan Hovold
4b549bf8bb ARM: dts: OMAP2+: remove uses of obsolete gpmc,device-nand
Remove all remaining uses of gpmc,device-nand that have been added since
the property was removed by commit f40739faba ("ARM: dts: OMAP2+:
Simplify NAND support").

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-18 16:37:43 -07:00
Wolfram Sang
365c107dcb ARM: AM335X: EVM: fix pinmux documentation in devicetree
Wrong documentation in pinmux description can be especially confusing.
Keep it proper.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-18 16:37:43 -07:00
Sebastian Reichel
3348e28ddc ARM: OMAP2+: N900: remove omapdss init for DT boot
Do not try to initialize display for DT boot, since omapdss
is now initialized via Device Tree. Without this patch the
display subsystem does not properly come up.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-18 16:37:43 -07:00
Peter Ujfalusi
8c0b4fd89e ARM: dts: dra7xx-clocks: Correct mcasp2_ahclkx_mux bit-shift
The correct bit is 24 for AHCLKX.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-18 15:53:33 -07:00
Roger Quadros
ada7657640 ARM: dts: omap5: Add clocks to USB3 PHY node
The USB3 PHY driver (ti-pipe3) was updated so that the relevant
clock phandles are expected in the DT node.
Provide the necessary clocks.

Reported-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-04-18 15:53:21 -07:00
Tushar Behera
35d35aae81 dt-bindings: clock: Move at91.h to dt-bindigs/clock
Most of the clock related dt-binding header files are located in
dt-bindings/clock folder. It would be good to keep all the similar
header files at a single location.

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
CC: Rob Landley <rob@landley.net>
CC: Andrew Victor <linux@maxim.org.za>
CC: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Acked-by: Boris BREZILLON <b.brezillon.dev@gmail.com>
[nicolas.ferre@atmel.com: add new at91sam9261 & at91sam9rl]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-04-18 23:44:52 +02:00
Bo Shen
d44db494a8 ARM: at91: fix spi cs on sama5d3 Xplained board
The PD16 is the CS3 for SPI0 while not SPI1.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-04-18 23:44:51 +02:00
Thomas Petazzoni
1cc9d48145 ARM: orion5x: fix target ID for crypto SRAM window
In commit 4ca2c04085 ('ARM: orion5x:
Move to ID based window creation'), the mach-orion5x code was changed
to use the new mvebu-mbus API. However, in the process, a mistake was
made on the crypto SRAM window target ID: it should have been 0x9
(verified in the datasheet) and not 0x0.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Link: https://lkml.kernel.org/r/1397400006-4315-2-git-send-email-thomas.petazzoni@free-electrons.com
Fixes: 4ca2c04085 ('ARM: orion5x: Move to ID based window creation')
Cc: stable@vger.kernel.org # v3.12+
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-04-17 04:52:26 +00:00
Geert Uytterhoeven
bb6c3d58c3 ARM: shmobile: r8a7740: Make r8a7740_meram_workaround() __init
It's called from eva_init() only, which is __init

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-04-16 10:01:49 +09:00
Geert Uytterhoeven
1fba31f047 ARM: shmobile: sh7372: Call sh7372_add_early_devices() instead of open coding
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-04-16 10:01:46 +09:00
Geert Uytterhoeven
72dc392ae5 ARM: shmobile: r8a7740: Remove unused r8a7740_add_early_devices_dt()
It was removed in commit 744fdc8dc0 ("ARM:
shmobile: r8a7740: Prepare for reference DT setup"), but accidentally
resurrected in commit 8837883778 ("ARM:
shmobile: Remove unused r8a7740 auxdata table").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-04-16 10:01:42 +09:00
Heiko Stuebner
5c4348c1f9 ARM: rockchip: fix copy'n'paste error in smp error messages
The error emitted when mapping the pmu failed, wrongly mentions the sram.

Reported-by: Kent Borg <kentborg@borg.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2014-04-15 11:17:00 +02:00
Max Schwarz
6faff9b6bd ARM: rockchip: rk3188: enable pull-ups on UART RX pins
The default behaviour of the uart-rx pins on the rk3188 is to be pulled up and
a lot of designs use diodes to even prevent them from being raised from the
outside.

Therefore change the rx-pin settings accordingly.

This also fixes a uart receive problem on mass production Radxa Rock boards.

Signed-off-by: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2014-04-15 11:00:11 +02:00
Philipp Zabel
4591b13289 ARM: i.MX6: ipu_di_sel clocks can set parent rates
To obtain exact pixel clocks, allow the DI clock selectors to influence
the PLLs that they are derived from.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-04-15 11:13:22 +08:00
Sascha Hauer
17b9b3b9e8 ARM: imx6q: clk: Parent DI clocks to video PLL via di_pre_sel
Route the video PLL to the display interface clocks via the di_pre_sel
and di_sel muxes by default.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-04-15 11:13:06 +08:00
Magnus Damm
d5dda0381f ARM: shmobile: koelsch: correct renesas,gpios to renesas,groups in sd[012] pfc
Fix typo of renesas,groups in the koeslch dt. The kernel has no
renesas,gpios but this should match renesas,groups.

Noticed thanks to similar fix for Lager by Rob Taylor and Ben Dooks.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-04-15 07:39:11 +09:00
Lucas Stach
64c04a79c3 ARM: shmobile: r8a7740: drop address cells from GIC node
This is likely a copy-and-paste error from the
ARM GIC documentation, that has already been fixed.

address-cells should have been set to 0, as with the size
cells. As having those properties set to 0 is the
same thing as not specifying them, drop them completely.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-04-15 07:38:34 +09:00
Lucas Stach
de66b58404 ARM: shmobile: sh73a0: drop address cells from GIC node
This is likely a copy-and-paste error from the
ARM GIC documentation, that has already been fixed.

address-cells should have been set to 0, as with the size
cells. As having those properties set to 0 is the
same thing as not specifying them, drop them completely.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-04-15 07:37:57 +09:00
Jay Foad
244b478386 ARM: 8026/1: Fix emulation of multiply accumulate instructions
The emulation for single and double precision multiply accumulate
instructions correctly normalised any denormal values in the operand
registers, but failed to normalise the destination (accumulator)
register.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=70501

Signed-off-by: Jay Foad <jay.foad@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-14 23:28:24 +01:00
Alexander Shiyan
c39e1ef77c ARM: 8024/1: Keep DEBUG_UART_{PHYS,VIRT} entries sorted
This patch sorts the entries for DEBUG_UART_{PHYS,VIRT}.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-04-14 23:28:23 +01:00
Simon Horman
3dedc5f5b1 ARM: shmobile: r8a7778: Use clks as MSTP007 parent
According to the documentation the parent clock of
MSTP007 should be clks not clkp.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-14 21:14:36 +01:00
Heiko Stuebner
3c27f314c6 ARM: S3C24XX: convert s3c2412 to common clock framework
Convert all machines using these cpus to use the ccf clock driver
instead of the legacy Samsung clock implementation.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-04-15 02:11:49 +09:00
Heiko Stuebner
42637c59f3 ARM: S3C24XX: only store clock registers when old clock code is active
The Samsung ccf driver already handles the save and restore of the clock
registers on suspend and resume. The architecture code should not
duplicate this when the ccf is active.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-04-15 02:11:36 +09:00
Heiko Stuebner
dfc0f5099a ARM: S3C24XX: Convert s3c2416 and s3c2443 to common clock framework
This converts the mentioned platforms to use the newly introduced driver
for the common clock framework for them.

With this the whole legacy clock structure can go away too.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-04-15 02:11:35 +09:00
Heiko Stuebner
8cb2874815 ARM: dts: add clock data for s3c2416
This adds the clock controller itself, the xti clock on the smdk2416
as well as the clock references in the individual device nodes.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-04-15 02:11:08 +09:00
Heiko Stuebner
5ab9a428cf ARM: S3C24XX: prevent conflicts between ccf and non-ccf s3c24xx-socs
As the conversion to the common-clock-framework is done in multiple
steps, it is necessary to prevent conflicts between the different
struct clk implementations.

For this include the s3c24xx_setup_clocks function only when
SAMSUNG_CLOCK is selected and make the socs we don't convert this
time explicitly depend on SAMSUNG_CLOCK, which gets only selected
automatically if COMMON_CLK is not enabled.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-04-15 02:11:08 +09:00
Heiko Stuebner
61fbb1d278 clk: samsung: add clock-driver for s3c2416, s3c2443 and s3c2450
The three SoCs share a common clock tree which only differs in the
existence of some special clocks.

As with all parts common to these three SoCs the driver is named
after the s3c2443, as it was the first SoC introducing this structure
and there exists no other label to describe this s3c24xx epoch.

The clock structure is built according to the manuals of the included
SoCs and might include changes in comparison to the previous clock
structure. As an example the sclk_uart gate was never handled previously
and the div_uart was made to be the clock used by the serial driver.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-04-15 02:11:08 +09:00
Emilio López
04ebcb5405 ARM: sun7i: fix PLL4 clock and add PLL8
Allwinner reworked the PLL4 clock in sun7i; so we need to change the
compatible. Additionally, PLL8 is compatible with this new PLL4
implementation, so let's add a node for it as well.

Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-04-14 11:58:39 +02:00