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412759 commits

Author SHA1 Message Date
Laurent Pinchart ff0fa48f81 mmc: sdhi: Enable driver compilation with COMPILE_TEST
This helps increasing build testing coverage.

The driver doesn't compile on (at least) x86 due (possibly among others)
to missing readsw/writesw I/O accessors, restrict compilation to SUPERH
or ARM.

Whether the CTL_DMA_ENABLE register is part of the standard TMIO
controller or is Renesas-specific is unknown and impossible to test as
we have no current or planned TMIO DMA users other than SUPERH and
ARCH_SHMOBILE. Writing to the register is thus conditionally compiled
for SUPERH and ARCH_SHMOBILE only. Adding ARCH_SHMOBILE_MULTI to the
list would extend this to multiarch kernels, but would break the driver
for non-shmobile platforms if the register is Renesas-specific. We can
thus get rid of the conditional compilation completely without
introducing any further issue, and let future non-Renesas users deal
with the situation if it turns out to be a the problem.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:28 -05:00
Stephen Warren 67debea344 mmc: tegra: add support for Tegra124
Tegra124's MMC controller is very similar to earlier SoC generations,
and can be supported by the same driver.

However, there are some non-backwards-compatible HW differences, and
hence a new DT compatible value must be used to describe the HW. This
patch updates the driver to support that new compatible value.

That said, the HW differences are only relevant when enabling certain
high-performance transfer modes. Since the driver is currently very
simple and doesn't enable those modes, we don't actually need to address
any of these HW differences in the code yet, hence the simple nature of
this patch.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:27 -05:00
Laurent Pinchart 538f4696bb mmc: sh_mmcif: Fix compilation warning on 64-bit platforms
Casting an integer to a void * generates a "cast to pointer from integer
of different size" warning. Cast the integer to an unsigned long first
to fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:26 -05:00
Laurent Pinchart e5a233cb64 mmc: sh_mmcif: Factorize DMA channel request and configuration code
The channel request and configuration code is duplicated for the rx and
tx channels. Create a function that requests a single channel and call
it twice instead.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:25 -05:00
Kuninori Morimoto e3c418f1b2 mmc: SDHI: add SoC specific workaround via HW version
One of Renesas SDHI chip needs workaround to use it, and, we can judge
it based on chip version.  This patch adds very quick-hack workaround
method, since we still don't know how many chips need workaround in
the future.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:24 -05:00
Kuninori Morimoto 5d60e50054 mmc: tmio: add new TMIO_MMC_HAVE_HIGH_REG flags
The accessibility checking method to the higher register was added by
69d1fe18e9 (mmc: tmio: only access registers above 0xff, if available)
But, it doesn't care 32bit register.  It is impossible to calculate it
from the resource size, since there is 16/32 bit register IP (e.g. VERSION
is located on 0xe2 if 16bit register, but it is located on 0x1c4 if 32bit
register).

This patch adds new TMIO_MMC_HAVE_HIGH_REG flags, tmio_mmc driver has it,
and sh_mobile_sdhi doesn't have it today.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:24 -05:00
Kuninori Morimoto 3b159a6e95 mmc: tmio: bus_shift become tmio_mmc_data member
.bus_shift is used to 16/32bit register access offset calculation on
tmio driver.  tmio_mmc_xxx is used from Toshiba/Renesas now, but this
bus_shift value depends on HW IP.  This patch moves .bus_shift to
tmio_mmc_data member and sets it on each driver.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:23 -05:00
Kuninori Morimoto 05fae4a755 mmc: tmio: use -EPROBE_DEFER if driver can't find regulator
Current tmio driver tries to use default ocr_avail if 1) it couldn't
find regulator and 2) if platform data doesn't have ocr_mask.
But, there is no guarantee that regulator driver probe is faster than
TMIO driver probe.  TMIO driver will not use regulator in such case.

By this patch, TMIO driver returns -EPROBE_DEFER if it couldn't find
regulator and if platform doesn't have ocr_mask.  Because, there is a
possibility that regulator has not been probed, but the user expects it.

This patch changes tmio_mmc_host_probe() behavior, but there is no user
who has conflict.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:22 -05:00
Sascha Hauer d1a1dfb2f5 mmc: mxs: use mmc_of_parse to parse devicetree properties
Use generic helper function. This also adds support for the cd-gpios and
max-frequency devicetree properties.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:21 -05:00
Sascha Hauer abd37cccd4 mmc: mxs: use mmc_gpio_get_ro for detecting read-only status
This also fixes that the read-only gpio was used without being
requested.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:20 -05:00
Sascha Hauer 6c3331d3ac mmc: mxs: use standard flag for cd inverted
We have a MMC_CAP2_CD_ACTIVE_HIGH flag, so use it rather than a custom
driver specific flag.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:19 -05:00
Sascha Hauer a91fe279ae mmc: mxs: use standard flag for broken card detection
Use the standard MMC_CAP_NEEDS_POLL flag rather than a custom broken_cd
flag. The original code used to just return true in the card detection
function for broken card detection. The MMC_CAP_NEEDS_POLL works different,
but was introduced for the same purpose, so assume the code works correct
now.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:19 -05:00
Sascha Hauer c5f4bc841c mmc: mxs: use standard flag for non-removable status
The standard caps already have a MMC_CAP_NONREMOVABLE flag. Use it
rather than a custom non_removable flag.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:18 -05:00
Sascha Hauer c1b55bfcb3 mmc: Do not call get_cd for non removable cards
Non removable cards are always present, so do not call get_cd for them.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:17 -05:00
Mika Westerberg 07c001c119 mmc: sdhci-acpi: add new ACPI ID
Newer Intel PCHs with LPSS have the same SDHCI controller than Haswell but
ACPI ID is different. Add this ID to the driver list.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:16 -05:00
Laurent Pinchart 00fb3d2a19 mmc: sh_mobile_sdhi: Convert to clk_prepare/unprepare
Turn clk_enable() and clk_disable() calls into clk_prepare_enable() and
clk_disable_unprepare() to get ready for the migration to the common
clock framework.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:15 -05:00
Fabio Estevam a50145f925 mmc: sdhci-esdhc-imx: Use NULL instead of zero
Fix the following sparse warning:

drivers/mmc/host/sdhci-esdhc-imx.c:617:35: warning: Using plain integer as NULL pointer

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:14 -05:00
Chuansheng Liu 63c211803a mmc: sdhci: Setting the host->mrq to NULL before executing tuning
In function sdhci_request(), it is possible to do the tuning execution
like below:

sdhci_request() {
	spin_lock_irqsave(&host->lock, flags);
	host->mrq = mrq;
	...
	spin_unlock_irqrestore(&host->lock, flags);

<=== Here it is possible one pending finish_tasklet get running
     and it will operate the original mrq, and notified the mrq
     is done, and causes memory corruption.

	sdhci_execute_tuning(mmc, tuning_opcode);
	spin_lock_irqsave(&host->lock, flags);
	host->mrq = mrq;
...
}

In the above race place, the original mrq should not be finished wrongly,
so here before unlock the spinlock, we need to set the host->mrq to NULL
to avoid this case.

Signed-off-by: Liu, Chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:13 -05:00
Guennadi Liakhovetski 0041113547 mmc: tmio: remove myself as a maintainer
Since I'm currently unable to dedicate sufficient time to driver
maintainership, remove myself from the maintainers list.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:13 -05:00
Ludovic Desroches 66b512eda7 mmc: atmel-mci: fix timeout errors in SDIO mode when using DMA
With some SDIO devices, timeout errors can happen when reading data.
To solve this issue, the DMA transfer has to be activated before sending
the command to the device. This order is incorrect in PDC mode. So we
have to take care if we are using DMA or PDC to know when to send the
MMC command.

Cc: stable <stable@vger.kernel.org> # 3.2+
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:12 -05:00
Kuninori Morimoto dd006b3081 mmc: tmio: don't overwrite caps2
02cb3221d5 ("mmc: tmio: support caps2 flags") added caps2 support on
tmio, but it overwrites mmc_of_parse() settings.  This patch fixes it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Laurent <laurent.pinchart@ideasonboard.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:11 -05:00
Ray Jui f662ae48ae mmc: fix host release issue after discard operation
Under function mmc_blk_issue_rq, after an MMC discard operation,
the MMC request data structure may be freed in memory. Later in
the same function, the check of req->cmd_flags & MMC_REQ_SPECIAL_MASK
is dangerous and invalid. It causes the MMC host not to be released
when it should.

This patch fixes the issue by marking the special request down before
the discard/flush operation.

Reported by: Harold (SoonYeal) Yang <haroldsy@broadcom.com>
Signed-off-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Seungwon Jeon <tgih.jun@samsung.com>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:10 -05:00
Dong Aisheng 89d7e5c131 mmc: sdhci-esdhc-imx: add runtime pm support
The root clock will be disabled in runtime pm to save power.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:09 -05:00
Dong Aisheng ce090a4eb9 mmc: sdhci-esdhc-imx: fix runtime pm unbalance issue
Since we're using common esdhc_send_command for tuning commands and
the core code will call pm_runtime_put after command is finished.
So we add a pm_runtime_get_sync here to get the balance.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:09 -05:00
Dong Aisheng 8b2bb0adce mmc: esdhc-imx: clearing SDHCI_CTRL_EXEC_TUNING should not affect other bits
Current code will clear all turning related bits like ESDHC_STD_TUNING_EN
and ESDHC_MIX_CTRL_FBCLK_SEL when clear SDHCI_CTRL_EXEC_TUNING.
This may cause the card which has already passed the turning to become
unwork since the turning status lost.
We observed this failure when enable runtime pm.

BTW, imx needs to enable ESDHC_MIX_CTRL_FBCLK_SEL bit for turned clock.
The FBCLK_SEL will be cleared when SDHCI_CTRL_TUNED_CLK is cleared
and SDHCI_CTRL_EXEC_TUNING is not set.
This is used in case we change to another normal card from a UHS card
in the same slot. FBCLK_SEL is not needed for normal card.

After that, SDHCI_CTRL_EXEC_TUNING will only affect ESDHC_MIX_CTRL_EXE_TUNE.
Clearing it does not affect the turned card to remain working on UHS mode.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:08 -05:00
Dong Aisheng d131a71c95 mmc: sdhci-esdhc-imx: tuning bits should not be cleared during reset
We should not clear tuning bits during reset or the SD3.0/eMMC4.5 card
working on UHS mode may not work after reset since the former tuning
settings was lost.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:07 -05:00
Dong Aisheng d433dc6318 mmc: sdhci-pltfm: export pltfm suspend/resume api
It is helpful for platform code to use to eliminate duplicated code.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:06 -05:00
Dong Aisheng 429a5b45fe mmc: sdhci-esdhc-imx: add eMMC HS200 mode support
Add support for eMMC 4.5 cards to work on hs200 mode.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:06 -05:00
Dong Aisheng 83cc16d767 mmc: core: mmc DDR mode should not depend on UHS_DDR50
The MMC_CAP_UHS_DDR50 must work on 1.8v.
However, the eMMC DDR mode can work on either 1.8v or 3.3v and
should not depend on UHS_DDR50.
So get rid of this limitation to let controller without 1.8v
signal voltage support can also work for eMMC DDR mode if it claims.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:05 -05:00
Dong Aisheng e2997c944d mmc: sdhci-esdhc-imx: add MMC_CAP_1_8V_DDR for mx6
The i.MX6 supports 1.8v/3.3v eMMC DDR mode, so add this flag.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:04 -05:00
Dong Aisheng e526003b55 mmc: sdhci-esdhc-imx: fix cpas over write issue
We should use '|=' instead '=', or it may over write the original
caps assigned before this line.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13 12:48:02 -05:00
Dong Aisheng 7dd109ef4f mmc: sdhci-esdhc-imx: add SDHCI_TRANSFER_MODE read function
Used to read out the correct value of SDHCI_TRANSFER_MODE register
for upper layer.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2013-11-26 16:34:03 -05:00
Dong Aisheng 2b558c13df mmc: sdhci: clear auto cmd setting bits for no data cmds
The auto cmd settings bits should be cleared before sending new commands
or we may receive command timeout error for normal commands due to wrongly
pre-sent auto cmd.

e.g. we receive CMD13 timeout error due to ACMD23 is wrongly enabled
by former data commands.

mmc2: new high speed DDR MMC card at address 0001
mmcblk1: mmc2:0001 SEM08G 7.39 GiB
mmcblk1boot0: mmc2:0001 SEM08G partition 1 2.00 MiB
mmcblk1boot1: mmc2:0001 SEM08G partition 2 2.00 MiB
mmcblk1rpmb: mmc2:0001 SEM08G partition 3 128 KiB
 mmcblk1: p1 p2 p3 p4 < p5 p6 p7 >
mmc2: Timeout waiting for hardware interrupt.
 mmcblk1boot1: unknown partition table
mmc2: Timeout waiting for hardware interrupt.
 mmcblk1boot0: unknown partition table

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2013-11-26 16:33:47 -05:00
Linus Torvalds 0e4b0743bb ARM: SoC fixes for 3.13-rc
Mostly bugfixes and a few small code removals. Worth pointing out is:
 
 - A handful of more fixes to get DT enablement working properly on OMAP,
   finding new breakage of things that don't work quite right yet without
   the traditional board files. I expect a bit more of this to come in this
   release as people test on their hardware.
 - Implementation of power_down_finish() on vexpress, to make kexec work and
   to stop the MCPM core to produce a warning (the warning was new to 3.13-rc1).
 - A handful of minor fixes for various platforms.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Mostly bugfixes and a few small code removals.  Worth pointing out is:

   - A handful of more fixes to get DT enablement working properly on
     OMAP, finding new breakage of things that don't work quite right
     yet without the traditional board files.  I expect a bit more of
     this to come in this release as people test on their hardware.
   - Implementation of power_down_finish() on vexpress, to make kexec
     work and to stop the MCPM core to produce a warning (the warning
     was new to 3.13-rc1).
   - A handful of minor fixes for various platforms"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: bcm2835: add missing #xxx-cells to I2C nodes
  ARM: dts: Add max77686 RTC interrupt to cros5250-common
  ARM: vexpress/TC2: Implement MCPM power_down_finish()
  ARM: tegra: Provide dummy powergate implementation
  ARM: omap: fix warning with LPAE build
  ARM: OMAP2+: Remove legacy omap4_twl6030_hsmmc_init
  ARM: OMAP2+: Remove legacy mux code for display.c
  ARM: OMAP2+: Fix undefined reference to set_cntfreq
  gpio: twl4030: Fix passing of pdata in the device tree case
  gpio: twl4030: Fix regression for twl gpio output
  ARM: OMAP2+: More randconfig fixes for reconfigure_io_chain
  ARM: dts: imx6qdl: disable spdif "rxtx5" clock option
  ARM: dts: Fix omap2 specific dtsi files by adding the missing entries
  ARM: OMAP2+: Fix GPMC and simplify bootloader timings for 8250 and smc91x
  i2c: omap: Fix missing device tree flags for omap2
2013-11-26 11:18:37 -08:00
Linus Torvalds 3af4977ed6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull IMA fixes from James Morris:
 "These three patches fix regressions in the IMA code in your current
  tree.

  The first fixes a couple of bugs in template_desc_init_fields(), and
  the other two ensure that changes in this kernel don't break
  userspace"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  ima: make a copy of template_fmt in template_desc_init_fields()
  ima: do not send field length to userspace for digest of ima template
  ima: do not include field length in template digest calc for ima template
2013-11-26 11:16:54 -08:00
Linus Torvalds b95485143b NTB driver bug fixes to address a missed call to pci_enable_msix,
NTB-RP Link Up issue, Xeon Doorbell errata workaround, ntb_transport
 link down race, and correct dmaengine_get/put usage.  Also, clean-ups
 to remove duplicate defines and document a hardware errata.  Finally,
 some changes to improve performance.
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Merge tag 'ntb-3.13' of git://github.com/jonmason/ntb

Pull non-transparent bridge updates from Jon Mason:
 "NTB driver bug fixes to address a missed call to pci_enable_msix,
  NTB-RP Link Up issue, Xeon Doorbell errata workaround, ntb_transport
  link down race, and correct dmaengine_get/put usage.

  Also, clean-ups to remove duplicate defines and document a hardware
  errata.  Finally, some changes to improve performance"

* tag 'ntb-3.13' of git://github.com/jonmason/ntb:
  NTB: Disable interrupts and poll under high load
  NTB: Enable Snoop on Primary Side
  NTB: Document HW errata
  NTB: remove duplicate defines
  NTB: correct dmaengine_get/put usage
  NTB: Fix ntb_transport link down race
  ntb: Fix missed call to pci_enable_msix()
  NTB: Fix NTB-RP Link Up
  NTB: Xeon Doorbell errata workaround
2013-11-26 11:15:12 -08:00
Stephen Warren a31ab44ef5 ARM: bcm2835: add missing #xxx-cells to I2C nodes
The I2C controller node needs #address-cells and #size-cells properties,
but these are currently missing. Add them. This allows child nodes to be
parsed correctly.

Cc: stable@vger.kernel.org
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-11-25 21:56:00 -08:00
Mattia Dongili b975dc3689 sony-laptop: do not scribble keyboard backlight registers on resume
Follow-up to commit 294d31e822 ("sony-laptop: don't change keyboard
backlight settings"): avoid messing up the state on resume.  Leave it to
what was before suspending as it's anyway likely that we still don't
know what value we should write to the EC registers.  This fix is also
required in 3.12

Cc: stable@vger.kernel.org
Tested-by: Karol Babioch <karol@babioch.de>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-26 13:03:36 +09:00
James Morris 6df025c1ae Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity into for-linus 2013-11-26 11:05:14 +11:00
Kevin Hilman 192b4bcbbe The imx fixes for 3.13, part 2:
- Disable S/PDIF "rxtx5" clock option to fix the clocksource breakage
    introduced by S/PDIF driver
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Merge tag 'imx-fixes-3.13-2' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes

The imx fixes for 3.13, part 2:
 - Disable S/PDIF "rxtx5" clock option to fix the clocksource breakage
   introduced by S/PDIF driver

* tag 'imx-fixes-3.13-2' of git://git.linaro.org/people/shawnguo/linux-2.6:
  ARM: dts: imx6qdl: disable spdif "rxtx5" clock option

Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-11-25 15:55:18 -08:00
Doug Anderson c61248afa8 ARM: dts: Add max77686 RTC interrupt to cros5250-common
Without the interrupt you'll get problems if you enable
CONFIG_RTC_DRV_MAX77686.  Setup the interrupt properly in the device
tree.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: stable@vger.kernel.org
2013-11-25 15:14:41 -08:00
Dave Martin 33cb667a00 ARM: vexpress/TC2: Implement MCPM power_down_finish()
This patch implements the power_down_finish() method for TC2, to
enable the kernel to confirm when CPUs are safely powered down.

The information required for determining when a CPU is parked
cannot be obtained from any single place, so a few sources of
information must be combined:

  * mcpm_cpu_power_down() must be pending for the CPU, so that we
    don't get confused by false STANDBYWFI positives arising from
    CPUidle.  This is detected by waiting for the tc2_pm use count
    for the target CPU to reach 0.

  * Either the SPC must report that the CPU has asserted
    STANDBYWFI, or the TC2 tile's reset control logic must be
    holding the CPU in reset.

    Just checking for STANDBYWFI is not sufficient, because this
    signal is not latched when the the cluster is clamped off and
    powered down: the relevant status bits just drop to zero.  This
    means that STANDBYWFI status cannot be used for reliable
    detection of the last CPU in a cluster reaching WFI.

This patch is required in order for kexec to work with MCPM on TC2.

MCPM code was changed in commit 0de0d64675 ('ARM: 7848/1: mcpm:
Implement cpu_kill() to synchronise on powerdown'), and since then it
will hit a WARN_ON_ONCE() due to power_down_finish not being implemented
on the TC2 platform.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-11-25 14:12:14 -08:00
Thierry Reding 9886e1fd09 ARM: tegra: Provide dummy powergate implementation
In order to support increased build test coverage for drivers, implement
dummies for the powergate implementation. This will allow the drivers to
be built without requiring support for Tegra to be selected.

This patch solves the following build errors, which can be triggered in
v3.13-rc1 by selecting DRM_TEGRA without ARCH_TEGRA:

drivers/built-in.o: In function `gr3d_remove':
drivers/gpu/drm/tegra/gr3d.c:321: undefined reference to `tegra_powergate_power_off'
drivers/gpu/drm/tegra/gr3d.c:325: undefined reference to `tegra_powergate_power_off'
drivers/built-in.o: In function `gr3d_probe':
drivers/gpu/drm/tegra/gr3d.c:266: undefined reference to `tegra_powergate_sequence_power_up'
drivers/gpu/drm/tegra/gr3d.c:273: undefined reference to `tegra_powergate_sequence_power_up'

Signed-off-by: Thierry Reding <treding@nvidia.com>
[swarren, updated commit description]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-11-25 13:34:51 -08:00
Olof Johansson 5c1f34c42d Merge tag 'omap-for-v3.13/more-fixes-for-merge-window-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:
Few more fixes for issues found booting older omaps using device tree.
Also few randconfig build fixes and removal of some dead code for omap4
as it no longer has legacy platform data based booting support.

* tag 'omap-for-v3.13/more-fixes-for-merge-window-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Remove legacy omap4_twl6030_hsmmc_init
  ARM: OMAP2+: Remove legacy mux code for display.c
  ARM: OMAP2+: Fix undefined reference to set_cntfreq
  gpio: twl4030: Fix passing of pdata in the device tree case
  gpio: twl4030: Fix regression for twl gpio output
  ARM: OMAP2+: More randconfig fixes for reconfigure_io_chain
  ARM: dts: Fix omap2 specific dtsi files by adding the missing entries
  ARM: OMAP2+: Fix GPMC and simplify bootloader timings for 8250 and smc91x
  i2c: omap: Fix missing device tree flags for omap2
2013-11-25 13:34:49 -08:00
Olof Johansson 6dd1e35737 ARM: omap: fix warning with LPAE build
Some omap3 code is throwing a warning:
arch/arm/mach-omap2/pm34xx.c: In function 'omap3_save_secure_ram_context':
arch/arm/mach-omap2/pm34xx.c:123:32: warning: cast to pointer from
  integer of different size [-Wint-to-pointer-cast]

In reality this code will never actually execute with LPAE=y, since
Cortex-A8 doesn't support it. So downcasting the __pa() is safe in
this case.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Tony Lindgren <tony@atomide.com>
2013-11-25 13:34:48 -08:00
Linus Torvalds 8e45099e02 regulator: Fixes for v3.13
A bunch of fixes, a few driver specific ones and a framework fix for
 voltage enumeration on fixed voltage regulators which had previously
 worked but had been misplaced during some refactoring causing problems
 for users that needed to know the voltage.
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Merge tag 'regulator-v3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "A bunch of fixes, a few driver specific ones and a framework fix for
  voltage enumeration on fixed voltage regulators which had previously
  worked but had been misplaced during some refactoring causing problems
  for users that needed to know the voltage"

* tag 'regulator-v3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: arizona-micsupp: Correct wm5110 voltage selection
  regulator: pfuze100: allow misprogrammed ID
  regulator: fixed: fix regulator_list_voltage() for regression
  regulator: gpio-regulator: Don't oops on missing regulator-type property
2013-11-25 12:50:08 -08:00
Roberto Sassu dbc335d2dc ima: make a copy of template_fmt in template_desc_init_fields()
This patch makes a copy of the 'template_fmt' function argument so that
the latter will not be modified by strsep(), which does the splitting by
replacing the given separator with '\0'.

 IMA: No TPM chip found, activating TPM-bypass!
 Unable to handle kernel pointer dereference at virtual kernel address 0000000000842000
 Oops: 0004 [#1] SMP
 Modules linked in:
 CPU: 3 PID: 1 Comm: swapper/0 Not tainted 3.12.0-rc2-00098-g3ce1217d6cd5 #17
 task: 000000003ffa0000 ti: 000000003ff84000 task.ti: 000000003ff84000
 Krnl PSW : 0704e00180000000 000000000044bf88 (strsep+0x7c/0xa0)
            R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:0 EA:3
 Krnl GPRS: 000000000000007c 000000000000007c 000000003ff87d90 0000000000821fd8
            0000000000000000 000000000000007c 0000000000aa37e0 0000000000aa9008
            0000000000000051 0000000000a114d8 0000000100000002 0000000000842bde
            0000000000842bdf 00000000006f97f0 000000000040062c 000000003ff87cf0
 Krnl Code: 000000000044bf7c: a7f4000a           brc     15,44bf90
            000000000044bf80: b90200cc           ltgr    %r12,%r12
           #000000000044bf84: a7840006           brc     8,44bf90
           >000000000044bf88: 9200c000           mvi     0(%r12),0
            000000000044bf8c: 41c0c001           la      %r12,1(%r12)
            000000000044bf90: e3c020000024       stg     %r12,0(%r2)
            000000000044bf96: b904002b           lgr     %r2,%r11
            000000000044bf9a: ebbcf0700004       lmg     %r11,%r12,112(%r15)
 Call Trace:
 ([<00000000004005fe>] ima_init_template+0xa2/0x1bc)
  [<0000000000a7c896>] ima_init+0x7a/0xa8
  [<0000000000a7c938>] init_ima+0x24/0x40
  [<00000000001000e8>] do_one_initcall+0x68/0x128
  [<0000000000a4eb56>] kernel_init_freeable+0x20a/0x2b4
  [<00000000006a1ff4>] kernel_init+0x30/0x178
  [<00000000006b69fe>] kernel_thread_starter+0x6/0xc
  [<00000000006b69f8>] kernel_thread_starter+0x0/0xc
 Last Breaking-Event-Address:
  [<000000000044bf42>] strsep+0x36/0xa0

Fixes commit: adf53a7 ima: new templates management mechanism

Changelog v1:
- make template_fmt 'const char *' (reported-by James Morris)
- fix kstrdup memory leak (reported-by James Morris)

Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Tested-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2013-11-25 15:05:33 -05:00
Roberto Sassu 3e8e5503a3 ima: do not send field length to userspace for digest of ima template
This patch defines a new value for the 'ima_show_type' enumerator
(IMA_SHOW_BINARY_NO_FIELD_LEN) to prevent that the field length
is transmitted through the 'binary_runtime_measurements' interface
for the digest field of the 'ima' template.

Fixes commit: 3ce1217 ima: define template fields library and new helpers

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
2013-11-25 07:31:14 -05:00
Roberto Sassu b6f8f16f41 ima: do not include field length in template digest calc for ima template
To maintain compatibility with userspace tools, the field length must not
be included in the template digest calculation for the 'ima' template.

Fixes commit: a71dc65 ima: switch to new template management mechanism

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
2013-11-25 07:26:28 -05:00
Randy Dunlap 7e3528c366 slab.h: remove duplicate kmalloc declaration and fix kernel-doc warnings
Fix kernel-doc warning for duplicate definition of 'kmalloc':

  Documentation/DocBook/kernel-api.xml:9483: element refentry: validity error : ID API-kmalloc already defined
  <refentry id="API-kmalloc">

Also combine the kernel-doc info from the 2 kmalloc definitions into one
block and remove the "see kcalloc" comment since kmalloc now contains the
@flags info.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-24 11:01:16 -08:00