Commit Graph

33298 Commits

Author SHA1 Message Date
Sourav Poddar 8ed43df176 ARM: omap2+: skip device build from platform code for dt
For SOCs with dt enabled, device should be build through device tree.
Prevent device build call from platform code, if device tree is
enabled.

Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-14 14:41:25 -07:00
Roger Quadros 4b4437cbcc dts: dra7-evm: add USB support
Add USB pinmux information and USB modes
for the USB controllers.

CC: Benoît Cousson <bcousson@baylibre.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-14 14:39:39 -07:00
Roger Quadros fbf3e552e9 ARM: dts: dra7: Add USB related nodes
Add nodes for the Super Speed USB controllers, omap-control-usb,
USB2 PHY and USB3 PHY devices.

Remove ocp2scp1 address space from hwmod data as it is
now provided via device tree.

CC: Benoît Cousson <bcousson@baylibre.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-14 14:39:36 -07:00
Roger Quadros 032d774575 ARM: dts: dra7-clock: Add "l3init_960m_gfclk" clock gate
This clock gate description is missing in the older Reference manuals.
It is present on the SoC to provide 960MHz reference clock to the
internal USB PHYs.

Reference: DRA75x_DRA74x_ES1.1_NDA_TRM_vO.pdf, pg. 900,
Table 3-812. CM_COREAON_L3INIT_60M_GFCLK_CLKCTRL

Use l3init_960m_gfclk as parent of usb_otg_ss1_refclk960m and
usb_otg_ss2_refclk960m.

CC: Benoît Cousson <bcousson@baylibre.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-14 14:39:34 -07:00
Roger Quadros c65d0ad510 ARM: dts: omap4+: Add clocks to USB2 PHY node
The USB2 PHY driver expects named clocks for wakeup clock
and reference clock. Provide this information for USB2 PHY
nodes in OMAP4 and OMAP5 SoC DTS.

CC: Benoît Cousson <bcousson@baylibre.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-14 14:37:09 -07:00
Balaji T K 7be8056966 ARM: dts: dra7: add OCP2SCP3 and SATA nodes
Add nodes for OCP2SCP3 bus, SATA controller and SATA PHY.

[Roger Q] Clean up. Updated IRQ for interrupt crossbar.

CC: Benoit Cousson <bcousson@baylibre.com>
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-14 14:36:38 -07:00
Balaji T K 4f82952cd3 ARM: dts: omap5: add sata node
Add support for sata.

[Roger Q] Clean up.

CC: Benoit Cousson <bcousson@baylibre.com>
CC: Tony Lindgren <tony@atomide.com>
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-14 14:13:04 -07:00
Wolfram Sang d2abdf73ee ARM: dts: am335x-evm: fix comments for lcd pins
In the comments, LCD pins 16-23 were numbered in the wrong order.
Fix this and use proper pinmux constants for all entries while we
are at it.

Signed-off-by: Wolfram Sang <wsa@sang-engineering.com>
Cc: Benoit Parrot <bparrot@ti.com>
Tested-by: Darren Etheridge <detheridge@ti.com>
[tony@atomide.com: updated description]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-13 10:00:37 -07:00
Sebastian Reichel 3fdb77174a ARM: dts: omap3-n900: use MATRIX_KEY for keymap
Use MATRIX_KEY macro from dt-bindings/input/input.h
to make the keyboard matrix human readable.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:22:51 -07:00
Sourav Poddar dc2dd5b8cb ARM: dts: dra7: Add qspi device
These add device tree entry for qspi controller driver on dra7-evm.

Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:22:51 -07:00
Dave Gerlach 12f0323685 ARM: dts: am335x-evmsk: Add vtt_fixed regulator
The VTT regulator for DDR3 termination on the am335x-evmsk is
controlled by a gpio. It is configured by the bootloader so here we
define an always-on, fixed voltage regulator to hold the gpio.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:22:51 -07:00
Dave Gerlach b2873bfa7b ARM: dts: am437x-gp-evm: Add vtt_fixed regulator
The VTT regulator for DDR3 termination on the am437x-gp-evm is
controlled by a gpio. It is configured by the bootloader so here we
define an always-on, fixed voltage regulator to hold the gpio.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:22:51 -07:00
Sekhar Nori 0ebc1e2519 ARM: dts: am437x: Add touchscreen support for GP EVM
Add touchscreen support for AM437x GP EVM using pixcir
touchscreen controller.

CC: Benoit Cousson <bcousson@baylibre.com>
CC: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:20:14 -07:00
Roger Quadros 6cfcb5be95 ARM: dts: am43x-epos-evm: Correct Touch controller info
Fixup Y resolution and add default pin state. Also update
the compatible id.

CC: Benoit Cousson <bcousson@baylibre.com>
CC: Tony Lindgren <tony@atomide.com>
CC: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:20:14 -07:00
Guido Martínez 2cd1de1c24 ARM: dts: am335x-igep0033: use phandles for USB and DMA refs
Use phandles instead of unit adresses to reference usb and dma nodes.
This makes the DT more robust and readable.

Signed-off-by: Guido Martínez <guido@vanguardiasur.com.ar>
Cc: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:20:14 -07:00
Guido Martínez 0f686d2065 ARM: dts: am335x-evmsk: use phandles for USB and DMA refs
Use phandles instead of unit adresses to reference usb and dma nodes.
This makes the DT more robust and readable.

Signed-off-by: Guido Martínez <guido@vanguardiasur.com.ar>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:20:14 -07:00
Guido Martínez bd6fdaf765 ARM: dts: am335x-evm: use phandles for USB and DMA refs
Use phandles instead of unit adresses to reference usb and dma nodes.
This makes the DT more robust and readable.

Signed-off-by: Guido Martínez <guido@vanguardiasur.com.ar>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:20:14 -07:00
Guido Martínez 081df89d87 ARM: dts: am335x-bone-common: use phandles for USB and DMA refs
Use phandles instead of unit adresses to reference usb and dma nodes.
This makes the DT more robust and readable.

Signed-off-by: Guido Martínez <guido@vanguardiasur.com.ar>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:20:14 -07:00
Rajendra Nayak 44e97ff6dc ARM: OMAP2+: Add machine entry for dra72x devices
The only difference from the dra74x devices is the missing .smp entry.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:20:14 -07:00
Rajendra Nayak 1509e24be2 ARM: OMAP2+: Replace all __initdata with __initconst for const init
Use of const init definition must use __initconst so replace
all such instances where __initdata is used.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:20:14 -07:00
Rajendra Nayak 38b248db60 ARM: dts: Add support for DRA72x family of devices
DRA722 is part of DRA72x family which are single core cortex A15 devices
with most infrastructure IPs otherwise same as whats on the DRA74x family.

So move the cpu nodes into dra74x.dtsi and dra72x.dtsi respectively.

Also add a minimal dra72-evm dts file.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Cc: linux-doc@vger.kernel.org
Cc: devicetree@vger.kernel.org
Acked-by: Arnd Bergmann <arnd@arndb.de>
[tony@atomide.com: updated for Makefile sorting]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:20:14 -07:00
Rajendra Nayak a31451ce6a ARM: dts: dra7-evm: Remove the wrong and undocumented compatible
"ti,dra752" is neither documented nor correct, since the device is actually a
dra742 device as rightly documented in dt bindings.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:20:14 -07:00
Sourav Poddar 2a1a5043fd ARM: dts: am43x-epos: Add qspi device
This patch adds qspi nodes for am43xx SOC devices.

Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:19:49 -07:00
Dmitry Lifshitz 4a996d187e ARM: dts: cm-t54: add WiFi/BT support
Add support of AW-NH387 (mwifiex) WiFi/BT chip connected to MMC3.

Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:19:49 -07:00
Dmitry Lifshitz 9f642b5c34 ARM: dts: sbc-t54: add support for sbc-t54 with cm-t54
Add support for CM-T54 CoM and SBC-T54 board:

http://compulab.co.il/products/computer-on-modules/cm-t54/
http://compulab.co.il/products/sbcs/sbc-t54/

SBC-T54 is a single board computer based on OMAP5432 CPU.
It is implemented with a CM-T54 CoM providing most of the functions,
and SB-T54 carrier board providing connectors and several additional
functions.

Added basic support for:

* PMIC
* LED
* MMC/SD
* eMMC
* USB
* I2C1/4
* SB-T54 and CM-T54 EEPROMs
* RTC

Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
[tony@atomide.com: updated for Makefile sorting]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:19:49 -07:00
Nathan Lynch 69a126cbed ARM: dts: OMAP5: add pmu node
Expose the PMU on OMAP5.

Tested with perf on OMAP5 uEVM.

Signed-off-by: Nathan Lynch <nathan_lynch@mentor.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:19:49 -07:00
Sakari Ailus 79f7f37a56 ARM: dts: n950: Add missing regulator definitions
The N950/N9 uses two additional regulators from the twl 4030 for CSI-2
receiver (vaux2) and cameras (vaux3).

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:19:49 -07:00
Sebastian Reichel f7d0f2a085 ARM: dts: omap3-n900: Add sound support
This patch adds support for the Nokia N900's sound
system.

Signed-off-by: Sebastian Reichel <sre@kernel.org>
Reviewed-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:19:49 -07:00
Sebastian Reichel b36c8ac9a9 ARM: dts: twl4030: Add madc
Add madc node to twl4030, so that board DTS
files can simply reference the A/D converter.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:19:49 -07:00
Sebastian Reichel c1ad22069c ARM: dts: omap3-n900: Add WL1251 support
Add device tree support for the wireless chip
built into the Nokia N900.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:19:49 -07:00
George Cherian 61d5924fa7 ARM: dts: am43x-epos-evm: Enable USB
Enable
	- USB PHY
	- USB

for am43x-epos-evm

Signed-off-by: George Cherian <george.cherian@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:19:49 -07:00
George Cherian b5820d3a2c ARM: dts: am437x-gp-evm: Enable USB
Enable
	- USB PHY
	- USB
for am437x-gp-evm

Signed-off-by: George Cherian <george.cherian@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:19:49 -07:00
George Cherian a0ae47ea3e ARM: dts: AM4372: Add USB nodes
Add nodes for 2 instances each of
	- ocp2scp
	- USB PHY control module
	- USB PHY
	- dwc3_omap
	- USB

for AM43xx.

Signed-off-by: George Cherian <george.cherian@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:19:49 -07:00
George Cherian eac1cd3bd6 ARM: dts: am43xx clock data
Add USB and USB PHY reference clock data

Signed-off-by: George Cherian <george.cherian@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
[tony@atomide.com: tabified]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:19:49 -07:00
Peter Robinson ae774090b8 ARM: dts: Only build OMAP dtb if associated SoC is built
With ARCH_OMAP2PLUS being separated out into OMAP2/3/4/5 etc all the TI device
tree blobs are built no matter the combination of SoCs that are enabled. This
often causes a bunch of irrelevant .dts to be built on a multi platform kernel,
this enables the building of just the ones relevant to the SoCs that are
actually enabled. It also orders the dts file alphabetically.

This also helps to avoid trivial merge conflicts when adding support
for new boards.

[tony@atomide.com: updated the order for am335x and am43x, moved am3517 to omap3]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 09:58:03 -07:00
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
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
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
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
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
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
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