Commit Graph

58 Commits

Author SHA1 Message Date
Daniel Willmann
91769986a7 mmc: mxs: fix card detection function for broken card detect
Return -ENOSYS in get_cd if broken-cd is specified in the device tree.

Commit a91fe279ae (mmc: mxs: use standard flag for broken card
detection) sets MMC_CAP_NEEDS_POLL when broken-cd is specified. This
driver sets this flag unconditionally as it does not support a card
detect interrupt. Instead, broken-cd means that there is no card detect
signal connected.

The mmc core checks the get_cd function return value to determine if a
card is present. Only for a non-zero return value it will attempt to
initialize the card. So retuning -ENOSYS will allow the card to be
initialized.

For comparison, mmc_gpio_get_cd in slot-gpio.c also returns -ENOSYS if
the card detect GPIO is not valid.

Signed-off-by: Daniel Willmann <daniel@totalueberwachung.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <chris@printf.net>
2014-05-12 18:08:22 -04:00
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
Ulf Hansson
683590791d mmc: mxs-mmc: Move away from using deprecated APIs
Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30 20:28:25 -04:00
Fabio Estevam
02c18c4737 mmc: mxs-mmc: Check the return value from stmp_reset_block()
stmp_reset_block() may fail, so let's check its return value and
propagate it in the case of error.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2013-08-24 22:09:45 -04:00
Fabio Estevam
a5adbffda8 mmc: mxs-mmc: Use devm_clk_get()
Using devm_clk_get() allows us to remove the clk_put() calls, so
let's use it to simplify the code.

Rename the 'out_clk_put' label to 'out_clk_disable' now that clk_put
is removed.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2013-08-24 22:06:51 -04:00
Fabio Estevam
dcac5fe3cf mmc: mxs-mmc: Let device core handle pinctrl
Since commit ab78029 (drivers/pinctrl: grab default handles from
device core), we can rely on device core for handling pinctrl.

So remove devm_pinctrl_get_select_default() from the driver.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2013-06-27 10:49:16 -04:00
Jingoo Han
113a87f868 mmc: remove unnecessary platform_set_drvdata()
The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d06310
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Sonic Zhang <sonic.zhang@analog.com>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: Chris Ball <cjb@laptop.org>
2013-05-26 14:23:23 -04:00
Wei Yongjun
0c5ce16bc1 mmc: mxs-mmc: fix error return code in mxs_mmc_probe()
Fix to return -ENODEV in the request dma error case instead
of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2013-05-26 14:23:14 -04:00
Linus Torvalds
38f56f33ca ARM: arm-soc device tree changes, part 2
These are mostly new device tree bindings for existing drivers, as well
 as changes to the device tree source files to add support for those
 devices, and a couple of new boards, most notably Samsung's Exynos5
 based Chromebook.
 
 The changes depend on earlier platform specific updates and touch
 the usual platforms: omap, exynos, tegra, mxs, mvebu and davinci.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIVAwUAUYgjh2CrR//JCVInAQJTvRAAmxaeoI+kQ/pbbRDa/Mnhf+bUmQjvJvx4
 uFGYAAi23Txem2Bx6xrfvOo9//ATYSfRxenoSSOtXQucsnrqD0+837Sj2NbO6AB9
 MSiFDK4usJtGwSUybkSHNLb2QPBr8XTgmyWVE/sHEw2UtrIToC1n3sxFofFm0guT
 ReILKsgK0Wjyq5RntnjWOCHNNp6OGqDGvFXlSJqNA7Z6gR/VZy4o0oXS4Sv3TWgF
 zG7ngSG7/u9FP1IQnMr/SxY1T4QS/bBbAC1YvD/7X30DPHrWKR3/3LfLcsc9TUN2
 smTlZQjHdgBbGfVPL7JN0fQwA82HEjNSZKLJ0w9uFjxXgnoKT3znpUpQeuf3dsWm
 BhEFqN1Rf446S4ft2btBSB2nhX4NTlJ7w6z2F65xgaylgYFsGFTYcpjiOurKe3wF
 gGsw31DZdcuI4/LjiWbNGRKbMd7HFFLbFDMJ16TFbNcNr+pM3qpoQ6z3uMbfCBSe
 xFnYr+ESN8F2HXMNLiz3CTqLY+Fi/bHd22n3KuI9qsWws/0KDUrTvFh9Sm3kYji5
 QwwLl6PRoeFw8H29e3KrPsKoY/BGYAvrAetnC1o79cDFPLwUyii/1B6WwzC4ynfs
 K1VhwdVOwnp0sS/a2Pv8sZBpDNI07gwT9P20aiholxgREq2RKNXXVxGGFfK5Qvm9
 FG4Vp6EKEQ0=
 =G60S
 -----END PGP SIGNATURE-----

Merge tag 'dt-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC device tree updates (part 2) from Arnd Bergmann:
 "These are mostly new device tree bindings for existing drivers, as
  well as changes to the device tree source files to add support for
  those devices, and a couple of new boards, most notably Samsung's
  Exynos5 based Chromebook.

  The changes depend on earlier platform specific updates and touch the
  usual platforms: omap, exynos, tegra, mxs, mvebu and davinci."

* tag 'dt-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (169 commits)
  ARM: exynos: dts: cros5250: add EC device
  ARM: dts: Add sbs-battery for exynos5250-snow
  ARM: dts: Add i2c-arbitrator bus for exynos5250-snow
  ARM: dts: add mshc controller node for Exynos4x12 SoCs
  ARM: dts: Add chip-id controller node on Exynos4/5 SoC
  ARM: EXYNOS: Create virtual I/O mapping for Chip-ID controller using device tree
  ARM: davinci: da850-evm: add SPI flash support
  ARM: davinci: da850: override SPI DT node device name
  ARM: davinci: da850: add SPI1 DT node
  spi/davinci: add DT binding documentation
  spi/davinci: no wildcards in DT compatible property
  ARM: dts: mvebu: Convert mvebu device tree files to 64 bits
  ARM: dts: mvebu: introduce internal-regs node
  ARM: dts: mvebu: Convert all the mvebu files to use the range property
  ARM: dts: mvebu: move all peripherals inside soc
  ARM: dts: mvebu: fix cpus section indentation
  ARM: davinci: da850: add EHRPWM & ECAP DT node
  ARM/dts: OMAP3: fix pinctrl-single configuration
  ARM: dts: Add OMAP3430 SDP NOR flash memory binding
  ARM: dts: Add NOR flash bindings for OMAP2420 H4
  ...
2013-05-07 11:06:17 -07:00
Hector Palacios
1d53196a0d mmc: mxs-mmc: add broken-cd property
According to bindings documentation for mmc, the property 'broken-cd'
can be used to indicate card-detection is not available and polling
must be used instead. This patch retrieves this property
and sets a custom flag. On the get_cd() hook, it returns 1 if
the flag is set, to always assume the card is present.

Signed-off-by: Hector Palacios <hector.palacios@digi.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2013-04-12 14:17:55 -04:00
Marc Kleine-Budde
5086e5f41f mmc: mxs-mmc: add non-removable property
Some boards have non removable cards like eMMC. Handle such case.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2013-04-12 14:17:46 -04:00
Marc Kleine-Budde
4c0c9be050 mmc: mxs-mmc: add cd-inverted property
The card-detect GPIO is inverted on some boards. Handle such case.

Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2013-04-12 14:17:38 -04:00
Shawn Guo
0e91e434c8 mmc: mxs-mmc: move to use generic DMA helper
With the generic DMA device tree helper supported by mxs-dma driver,
client devices only need to call dma_request_slave_channel() for
requesting a DMA channel from dmaengine.

Since mxs is a DT only platform now, along with the changes, the non-DT
case checking in probe function also gets cleaned up.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Chris Ball <cjb@laptop.org>
Cc: linux-mmc@vger.kernel.org
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2013-04-04 21:22:44 +08:00
Linus Torvalds
ed5dc2372d MMC highlights for 3.9:
Core:
  - Support for packed commands in eMMC 4.5.  (This requires a host
    capability to be turned on.  It increases write throughput by 20%+,
    but may also increase average write latency; more testing needed.)
  - Add DT bindings for capability flags.
  - Add mmc_of_parse() for shared DT parsing between drivers.
 
 Drivers:
  - android-goldfish: New MMC driver for the Android Goldfish emulator.
  - mvsdio: Add DT bindings, pinctrl, use slot-gpio for card detection.
  - omap_hsmmc: Fix boot hangs with RPMB partitions.
  - sdhci-bcm2835: New driver for controller used by Raspberry Pi.
  - sdhci-esdhc-imx: Add 8-bit data, auto CMD23 support, use slot-gpio.
  - sh_mmcif: Add support for eMMC DDR, bundled MMCIF IRQs.
  - tmio_mmc: Add DT bindings, support for vccq regulator.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.13 (GNU/Linux)
 
 iQIcBAABAgAGBQJRKmwHAAoJEHNBYZ7TNxYMNBYP/2FZRY33nrnJ0yKeMpyfdH+C
 LN+33imQudA2t86FlbAOocvcpM12oTPy+DkIbFchWhN1O4lzrqMos8/527QUm9qL
 cyCnZXrbst/Ttrs3UIbfkKNhA1m4Wau/taNPJ0fWqdmZU4424O774xSOyyB8m9x/
 DKuPIs6B9AfVAlS+OM8ZtviIvsJRgC6amZ0mNQZIKGHPm7vCTg6n35tP1ux7ZvJQ
 4dMlgqRalV+xN9gNBnCVLOc2eSwEyxIJA2m13LTHGf72pkNvSdYrID87qTJbvXOl
 Ed7PHuU3+M5bHw7ErCkbi8rmwuSuc8omNt9WK+syGLx4g7v7GceIYHNQudatdN7O
 gYUWnufT6Om6y+6h9QJ5td4ZZ7i6MhfC1Ps8hJCUjiVn+cLKlEPj0KmLAhZm+6cu
 wuBdCujeAFu7Z5VcaO2TBLHXXsgggnWbpoq7v6fucCNIleBe598Nu2YJAdbMc+W4
 8mONN4ANslTw7CAMrL3C99Ab1WVLZenX38schgDisTkGnI8dr/JCD4OpqAnPSKql
 qD5KCKRb8O4BMZpQxiFwyTzqYpmNM9RkaIykLxY5y26lgwFI+At9wh1HnhFC4Hl/
 ReJ5Cnm8sH19Vgz+5zpZzzS5/aCssObdfFImIfw1wWzwk9A8EHSjAZsVUkzXiVd4
 yRwz6eeO3gBMZ+v2humV
 =dYdW
 -----END PGP SIGNATURE-----

Merge tag 'mmc-updates-for-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

Pull MMC update from Chris Ball:
 "MMC highlights for 3.9:

  Core:
   - Support for packed commands in eMMC 4.5.  (This requires a host
     capability to be turned on.  It increases write throughput by 20%+,
     but may also increase average write latency; more testing needed.)
   - Add DT bindings for capability flags.
   - Add mmc_of_parse() for shared DT parsing between drivers.

  Drivers:
   - android-goldfish: New MMC driver for the Android Goldfish emulator.
   - mvsdio: Add DT bindings, pinctrl, use slot-gpio for card detection.
   - omap_hsmmc: Fix boot hangs with RPMB partitions.
   - sdhci-bcm2835: New driver for controller used by Raspberry Pi.
   - sdhci-esdhc-imx: Add 8-bit data, auto CMD23 support, use slot-gpio.
   - sh_mmcif: Add support for eMMC DDR, bundled MMCIF IRQs.
   - tmio_mmc: Add DT bindings, support for vccq regulator"

* tag 'mmc-updates-for-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (92 commits)
  mmc: tegra: assume CONFIG_OF, remove platform data
  mmc: add DT bindings for more MMC capability flags
  mmc: tmio: add support for the VccQ regulator
  mmc: tmio: remove unused and deprecated symbols
  mmc: sh_mobile_sdhi: use managed resource allocations
  mmc: sh_mobile_sdhi: remove unused .pdata field
  mmc: tmio-mmc: parse device-tree bindings
  mmc: tmio-mmc: define device-tree bindings
  mmc: sh_mmcif: use mmc_of_parse() to parse standard MMC DT bindings
  mmc: (cosmetic) remove "extern" from function declarations
  mmc: provide a standard MMC device-tree binding parser centrally
  mmc: detailed definition of CD and WP MMC line polarities in DT
  mmc: sdhi, tmio: only check flags in tmio-mmc driver proper
  mmc: sdhci: Fix parameter of sdhci_do_start_signal_voltage_switch()
  mmc: sdhci: check voltage range only on regulators aware of voltage value
  mmc: bcm2835: set SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK
  mmc: support packed write command for eMMC4.5 devices
  mmc: add packed command feature of eMMC4.5
  mmc: rtsx: remove driving adjustment
  mmc: use regulator_can_change_voltage() instead of regulator_count_voltages
  ...
2013-02-26 09:31:09 -08:00
Fabio Estevam
fd63ac761a mmc: mxs-mmc: Fix warning due to incorrect type
Fixes the following warning when building with W=1 option:

drivers/mmc/host/mxs-mmc.c: In function 'mxs_mmc_adtc':
drivers/mmc/host/mxs-mmc.c:401:2: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]

The warning happens because 'i' is used in 'for_each_sg(sgl, sg, sg_len, i)' and should be made unsigned.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2013-02-24 14:36:51 -05:00
Fabio Estevam
e7be434acc mmc: mxs-mmc: Add MODULE_ALIAS()
Add an entry for MODULE_ALIAS().

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2013-02-24 14:36:50 -05:00
Thierry Reding
a3e2cd7f24 mmc: Convert to devm_ioremap_resource()
Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.

devm_ioremap_resource() provides its own error messages so all explicit
error messages can be removed from the failure code paths.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Chris Ball <cjb@laptop.org>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-25 12:21:47 -08:00
Fabio Estevam
d6ed91aff6 mmc: mxs-mmc: Remove platform data
All MXS users have been converted to device tree and the board files have
been removed.

No need to keep platform data in the driver.

Also move bus_width declaration in the beggining of mxs_mmc_probe() to
avoid: 'warning: ISO C90 forbids mixed declarations and code'.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-12-06 13:54:44 -05:00
Marek Vasut
4c5bb2e42e mmc: mxs-mmc: Fix merge issue causing build error
The following error appeared due to a merge problem; the patches:

fc108d24 "mmc: mxs-mmc: fix deadlock caused by recursion loop"
829c1bf4 "mmc: spi: Pull out parts shared between MMC and SPI"

came in through separate branches and cause this build error when
combined.

drivers/mmc/host/mxs-mmc.c: In function 'mxs_mmc_enable_sdio_irq':
drivers/mmc/host/mxs-mmc.c:527:3: error: 'struct mxs_mmc_host' has no member named 'base'
drivers/mmc/host/mxs-mmc.c:527:3: error: 'struct mxs_mmc_host' has no member named 'devid'
make[3]: *** [drivers/mmc/host/mxs-mmc.o] Error 1

This patch corrects the issue.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-10-11 17:21:40 -04:00
Mark Brown
ac48f6cb5f Linux 3.6-rc6
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.18 (GNU/Linux)
 
 iQEcBAABAgAGBQJQVkutAAoJEHm+PkMAQRiGW8sH/36FVQ3zI75QH16AmR++2nMZ
 BRJGoxcRFMssrXTYVdkMyzygf8b7MZbNEn1qt2g63MNzGaJucPlw5NVL4GLzR+zr
 x/EglLrTEPCD5el9wJ3ls9iC1soudKQTvC2BjcdUjpoSwHrDM/7GKfbOacE54Wqc
 C1VHCcg5DWOD7F0RnYT2SQEVCeDODNmcyFdk7Oi4cUicTPJoYWJ9O9MGfBDBok0N
 M+dXxa9nvsl7EeEKpBKH9vo4TfXn3Gsj6LCRdedvI15ilZjfo8jdHYbSn7KBfQuZ
 JIKRnqkaQ1JfMFt+M/JJZ1b/+Wrd4HLMmmn5oUmrGGIvhpi32nJfi/97+nSy8iU=
 =c5gW
 -----END PGP SIGNATURE-----

Merge tag 'v3.6-rc6' into spi-mxs

Linux 3.6-rc6

Conflicts (overlap between moving code that accesses registers around
and factoring the register access out into a SSP layer):
	drivers/mmc/host/mxs-mmc.c
2012-09-25 13:41:02 +01:00
Lauri Hintsala
fc108d24d3 mmc: mxs-mmc: fix deadlock caused by recursion loop
Release the lock before mmc_signal_sdio_irq is called by
mxs_mmc_enable_sdio_irq.

Backtrace:
[   65.470000] =============================================
[   65.470000] [ INFO: possible recursive locking detected ]
[   65.470000] 3.5.0-rc5 #2 Not tainted
[   65.470000] ---------------------------------------------
[   65.470000] ksdioirqd/mmc0/73 is trying to acquire lock:
[   65.470000]  (&(&host->lock)->rlock#2){-.-...}, at: [<bf054120>] mxs_mmc_enable_sdio_irq+0x18/0xdc [mxs_mmc]
[   65.470000]
[   65.470000] but task is already holding lock:
[   65.470000]  (&(&host->lock)->rlock#2){-.-...}, at: [<bf054120>] mxs_mmc_enable_sdio_irq+0x18/0xdc [mxs_mmc]
[   65.470000]
[   65.470000] other info that might help us debug this:
[   65.470000]  Possible unsafe locking scenario:
[   65.470000]
[   65.470000]        CPU0
[   65.470000]        ----
[   65.470000]   lock(&(&host->lock)->rlock#2);
[   65.470000]   lock(&(&host->lock)->rlock#2);
[   65.470000]
[   65.470000]  *** DEADLOCK ***
[   65.470000]
[   65.470000]  May be due to missing lock nesting notation
[   65.470000]
[   65.470000] 1 lock held by ksdioirqd/mmc0/73:
[   65.470000]  #0:  (&(&host->lock)->rlock#2){-.-...}, at: [<bf054120>] mxs_mmc_enable_sdio_irq+0x18/0xdc [mxs_mmc]
[   65.470000]
[   65.470000] stack backtrace:
[   65.470000] [<c0014990>] (unwind_backtrace+0x0/0xf4) from [<c005ccb8>] (__lock_acquire+0x14f8/0x1b98)
[   65.470000] [<c005ccb8>] (__lock_acquire+0x14f8/0x1b98) from [<c005d3f8>] (lock_acquire+0xa0/0x108)
[   65.470000] [<c005d3f8>] (lock_acquire+0xa0/0x108) from [<c02f671c>] (_raw_spin_lock_irqsave+0x48/0x5c)
[   65.470000] [<c02f671c>] (_raw_spin_lock_irqsave+0x48/0x5c) from [<bf054120>] (mxs_mmc_enable_sdio_irq+0x18/0xdc [mxs_mmc])
[   65.470000] [<bf054120>] (mxs_mmc_enable_sdio_irq+0x18/0xdc [mxs_mmc]) from [<bf0541d0>] (mxs_mmc_enable_sdio_irq+0xc8/0xdc [mxs_mmc])
[   65.470000] [<bf0541d0>] (mxs_mmc_enable_sdio_irq+0xc8/0xdc [mxs_mmc]) from [<c0219b38>] (sdio_irq_thread+0x1bc/0x274)
[   65.470000] [<c0219b38>] (sdio_irq_thread+0x1bc/0x274) from [<c003c324>] (kthread+0x8c/0x98)
[   65.470000] [<c003c324>] (kthread+0x8c/0x98) from [<c00101ac>] (kernel_thread_exit+0x0/0x8)
[   65.470000] BUG: spinlock lockup suspected on CPU#0, ksdioirqd/mmc0/73
[   65.470000]  lock: 0xc3358724, .magic: dead4ead, .owner: ksdioirqd/mmc0/73, .owner_cpu: 0
[   65.470000] [<c0014990>] (unwind_backtrace+0x0/0xf4) from [<c01b46b0>] (do_raw_spin_lock+0x100/0x144)
[   65.470000] [<c01b46b0>] (do_raw_spin_lock+0x100/0x144) from [<c02f6724>] (_raw_spin_lock_irqsave+0x50/0x5c)
[   65.470000] [<c02f6724>] (_raw_spin_lock_irqsave+0x50/0x5c) from [<bf054120>] (mxs_mmc_enable_sdio_irq+0x18/0xdc [mxs_mmc])
[   65.470000] [<bf054120>] (mxs_mmc_enable_sdio_irq+0x18/0xdc [mxs_mmc]) from [<bf0541d0>] (mxs_mmc_enable_sdio_irq+0xc8/0xdc [mxs_mmc])
[   65.470000] [<bf0541d0>] (mxs_mmc_enable_sdio_irq+0xc8/0xdc [mxs_mmc]) from [<c0219b38>] (sdio_irq_thread+0x1bc/0x274)
[   65.470000] [<c0219b38>] (sdio_irq_thread+0x1bc/0x274) from [<c003c324>] (kthread+0x8c/0x98)
[   65.470000] [<c003c324>] (kthread+0x8c/0x98) from [<c00101ac>] (kernel_thread_exit+0x0/0x8)

Reported-by: Attila Kinali <attila@kinali.ch>
Signed-off-by: Lauri Hintsala <lauri.hintsala@bluegiga.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-09-04 13:58:06 -04:00
Lauri Hintsala
1af36b2a99 mmc: mxs-mmc: fix deadlock in SDIO IRQ case
Release the lock before mmc_signal_sdio_irq is called by mxs_mmc_irq_handler.

Backtrace:
[   79.660000] =============================================
[   79.660000] [ INFO: possible recursive locking detected ]
[   79.660000] 3.4.0-00009-g3e96082-dirty #11 Not tainted
[   79.660000] ---------------------------------------------
[   79.660000] swapper/0 is trying to acquire lock:
[   79.660000]  (&(&host->lock)->rlock#2){-.....}, at: [<c026ea3c>] mxs_mmc_enable_sdio_irq+0x18/0xd4
[   79.660000]
[   79.660000] but task is already holding lock:
[   79.660000]  (&(&host->lock)->rlock#2){-.....}, at: [<c026f744>] mxs_mmc_irq_handler+0x1c/0xe8
[   79.660000]
[   79.660000] other info that might help us debug this:
[   79.660000]  Possible unsafe locking scenario:
[   79.660000]
[   79.660000]        CPU0
[   79.660000]        ----
[   79.660000]   lock(&(&host->lock)->rlock#2);
[   79.660000]   lock(&(&host->lock)->rlock#2);
[   79.660000]
[   79.660000]  *** DEADLOCK ***
[   79.660000]
[   79.660000]  May be due to missing lock nesting notation
[   79.660000]
[   79.660000] 1 lock held by swapper/0:
[   79.660000]  #0:  (&(&host->lock)->rlock#2){-.....}, at: [<c026f744>] mxs_mmc_irq_handler+0x1c/0xe8
[   79.660000]
[   79.660000] stack backtrace:
[   79.660000] [<c0014bd0>] (unwind_backtrace+0x0/0xf4) from [<c005f9c0>] (__lock_acquire+0x1948/0x1d48)
[   79.660000] [<c005f9c0>] (__lock_acquire+0x1948/0x1d48) from [<c005fea0>] (lock_acquire+0xe0/0xf8)
[   79.660000] [<c005fea0>] (lock_acquire+0xe0/0xf8) from [<c03a8460>] (_raw_spin_lock_irqsave+0x44/0x58)
[   79.660000] [<c03a8460>] (_raw_spin_lock_irqsave+0x44/0x58) from [<c026ea3c>] (mxs_mmc_enable_sdio_irq+0x18/0xd4)
[   79.660000] [<c026ea3c>] (mxs_mmc_enable_sdio_irq+0x18/0xd4) from [<c026f7fc>] (mxs_mmc_irq_handler+0xd4/0xe8)
[   79.660000] [<c026f7fc>] (mxs_mmc_irq_handler+0xd4/0xe8) from [<c006bdd8>] (handle_irq_event_percpu+0x70/0x254)
[   79.660000] [<c006bdd8>] (handle_irq_event_percpu+0x70/0x254) from [<c006bff8>] (handle_irq_event+0x3c/0x5c)
[   79.660000] [<c006bff8>] (handle_irq_event+0x3c/0x5c) from [<c006e6d0>] (handle_level_irq+0x90/0x110)
[   79.660000] [<c006e6d0>] (handle_level_irq+0x90/0x110) from [<c006b930>] (generic_handle_irq+0x38/0x50)
[   79.660000] [<c006b930>] (generic_handle_irq+0x38/0x50) from [<c00102fc>] (handle_IRQ+0x30/0x84)
[   79.660000] [<c00102fc>] (handle_IRQ+0x30/0x84) from [<c000f058>] (__irq_svc+0x38/0x60)
[   79.660000] [<c000f058>] (__irq_svc+0x38/0x60) from [<c0010520>] (default_idle+0x2c/0x40)
[   79.660000] [<c0010520>] (default_idle+0x2c/0x40) from [<c0010a90>] (cpu_idle+0x64/0xcc)
[   79.660000] [<c0010a90>] (cpu_idle+0x64/0xcc) from [<c04ff858>] (start_kernel+0x244/0x2c8)
[   79.660000] BUG: spinlock lockup on CPU#0, swapper/0
[   79.660000]  lock: c398cb2c, .magic: dead4ead, .owner: swapper/0, .owner_cpu: 0
[   79.660000] [<c0014bd0>] (unwind_backtrace+0x0/0xf4) from [<c01ddb1c>] (do_raw_spin_lock+0xf0/0x144)
[   79.660000] [<c01ddb1c>] (do_raw_spin_lock+0xf0/0x144) from [<c03a8468>] (_raw_spin_lock_irqsave+0x4c/0x58)
[   79.660000] [<c03a8468>] (_raw_spin_lock_irqsave+0x4c/0x58) from [<c026ea3c>] (mxs_mmc_enable_sdio_irq+0x18/0xd4)
[   79.660000] [<c026ea3c>] (mxs_mmc_enable_sdio_irq+0x18/0xd4) from [<c026f7fc>] (mxs_mmc_irq_handler+0xd4/0xe8)
[   79.660000] [<c026f7fc>] (mxs_mmc_irq_handler+0xd4/0xe8) from [<c006bdd8>] (handle_irq_event_percpu+0x70/0x254)
[   79.660000] [<c006bdd8>] (handle_irq_event_percpu+0x70/0x254) from [<c006bff8>] (handle_irq_event+0x3c/0x5c)
[   79.660000] [<c006bff8>] (handle_irq_event+0x3c/0x5c) from [<c006e6d0>] (handle_level_irq+0x90/0x110)
[   79.660000] [<c006e6d0>] (handle_level_irq+0x90/0x110) from [<c006b930>] (generic_handle_irq+0x38/0x50)
[   79.660000] [<c006b930>] (generic_handle_irq+0x38/0x50) from [<c00102fc>] (handle_IRQ+0x30/0x84)
[   79.660000] [<c00102fc>] (handle_IRQ+0x30/0x84) from [<c000f058>] (__irq_svc+0x38/0x60)
[   79.660000] [<c000f058>] (__irq_svc+0x38/0x60) from [<c0010520>] (default_idle+0x2c/0x40)
[   79.660000] [<c0010520>] (default_idle+0x2c/0x40) from [<c0010a90>] (cpu_idle+0x64/0xcc)
[   79.660000] [<c0010a90>] (cpu_idle+0x64/0xcc) from [<c04ff858>] (start_kernel+0x244/0x2c8)

Signed-off-by: Lauri Hintsala <lauri.hintsala@bluegiga.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-09-04 13:58:05 -04:00
Marek Vasut
65defb9b3b mmc: spi: Pull out common DMA parts from MXS MMC
These parts will be used by the MXS SPI driver too.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-17 22:54:15 +01:00
Marek Vasut
1308239858 mmc: spi: Pull out the SSP clock configuration function
Pull out the MMC clock configuration function and make it
into SSP clock configuration function, so it can be used by
the SPI driver too.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-17 22:53:00 +01:00
Marek Vasut
829c1bf40b mmc: spi: Pull out parts shared between MMC and SPI
Abstract out the common part of private data shared between MMC
and SPI. These shall later allow to use common clock configuration
function.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-17 22:52:51 +01:00
Marek Vasut
600a991f98 mmc: spi: Rename IMX2[38]_MMC to IMX2[38]_SSP
Since the SSP controller can act as both SPI and MMC host,
renaming the enum to properly reflect the naming seems
appropriate.

Based on previous attempt by:
Fabio Estevam <fabio.estevam@freescale.com>

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-17 22:52:31 +01:00
Marek Vasut
8be3d3b2ac mmc: spi: Move SSP register definitions into separate file
Move the definitions into separate file so separate SPI driver can be
implemented. The SSP controller in MXS can act both as a MMC host and
as a SPI host.

Based on previous attempt by:
Fabio Estevam <fabio.estevam@freescale.com>

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-17 22:52:14 +01:00
Marek Vasut
b6e76f10af mmc: mxs-mmc: Add wp-inverted property
The write-protect GPIO is inverted on some boards. Handle such case.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-07-22 16:42:46 -04:00
Shawn Guo
4dc5a79f13 mmc: mxs-mmc: enable regulator for mmc slot
If bootloader or platform initialization code does not enable the
power supply to mmc slot, we need to do it in mmc driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-07-22 15:25:35 -04:00
Marek Vasut
a3e545e9ab mmc: mxs-mmc: Move of_match_table out of CONFIG_PM
Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-06-06 10:16:40 -04:00
Shawn Guo
6de4d817aa mmc: mxs-mmc: add device tree support
It adds device tree probe support for mxs-mmc driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Chris Ball <cjb@laptop.org>
2012-05-13 08:27:37 +08:00
Shawn Guo
31b0ff5e73 mmc: mxs-mmc: copy wp_gpio in struct mxs_mmc_host
Copy wp_gpio from platform_data into struct mxs_mmc_host, so that
the use of platform_data can be limited in probe function, which
will ease the device tree probe.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>
2012-05-13 08:05:58 +08:00
Shawn Guo
b60188c820 mmc: mxs-mmc: have dma_channel than dma_res in mxs_mmc_host
It replaces dma_res with dma_channel in struct mxs_mmc_host, so that
the device tree support will be a little easier, since dma channel
can not be retrieved from "struct resource *dma_res".

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>
2012-05-13 08:05:51 +08:00
Shawn Guo
df06bfc724 mmc: mxs-mmc: use devm_* helper to make cleanup simpler
Use devm_request_and_ioremap and devm_request_irq helpers to clean up
the code a little bit.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>
2012-05-13 08:05:45 +08:00
Shawn Guo
81f38ee8e6 mmc: mxs-mmc: move header from mach into linux folder
Rename arch/arm/mach-mxs/include/mach/mmc.h to
include/linux/mmc/mxs-mmc.h, so that mxs-mmc driver becomes
<mach/*> inclusion free.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>
2012-05-13 08:05:38 +08:00
Shawn Guo
ef9b4d3996 mmc: mxs-mmc: get rid of the use of cpu_is_xxx
The register HW_SSP_VERSION is broken for ssp version detection,
as the address of the register is different between imx23 and imx28.
Let's use platform_device_id to detect the device, so that the use
of cpu_is_xxx can be removed.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Chris Ball <cjb@laptop.org>
2012-05-13 08:05:31 +08:00
Shawn Guo
e0bf141db2 mmc: mxs-mmc: let ssp_is_old take host as parameter
Let macro ssp_is_old take host as parameter to make the code easy
to read.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Chris Ball <cjb@laptop.org>
2012-05-13 08:05:25 +08:00
Shawn Guo
70e6020688 mmc: mxs-mmc: use global stmp_device functionality
Use global stmp_device functionality to reduce mach-dependency.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Chris Ball <cjb@laptop.org>
2012-05-13 08:05:07 +08:00
Shawn Guo
9c92cf2409 mmc: mxs-mmc: adopt pinctrl support
Cc: linux-mmc@vger.kernel.org
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Chris Ball <cjb@laptop.org>
2012-05-12 09:43:15 +08:00
Shawn Guo
d04525ed03 dma: mxs-dma: enable channel in device_issue_pending call
Enable channel in device_issue_pending call, so that the order between
cookie assignment and channel enabling can be ensured naturally.

It fixes the mxs gpmi-nand breakage which is caused by the incorrect
order of cookie assigning and channel enabling.

Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Huang Shijie <b32955@freescale.com>
Tested-by <samgandhi9@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-04-20 15:35:58 +05:30
Linus Torvalds
623ff7739e MTD merge for 3.4
Artem's cleanup of the MTD API continues apace.
 Fixes and improvements for ST FSMC and SuperH FLCTL NAND, amongst others.
 More work on DiskOnChip G3, new driver for DiskOnChip G4.
 Clean up debug/warning printks in JFFS2 to use pr_<level>.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iEYEABECAAYFAk92K6UACgkQdwG7hYl686NrMACfWQJRWasR78MWKfkT2vWZwTFJ
 X5AAoKiSYO2pfo5gWJGOAahNC1zUqMX0
 =i3Vb
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6

Pull MTD changes from David Woodhouse:
 - Artem's cleanup of the MTD API continues apace.
 - Fixes and improvements for ST FSMC and SuperH FLCTL NAND, amongst
   others.
 - More work on DiskOnChip G3, new driver for DiskOnChip G4.
 - Clean up debug/warning printks in JFFS2 to use pr_<level>.

Fix up various trivial conflicts, largely due to changes in calling
conventions for things like dmaengine_prep_slave_sg() (new inline
wrapper to hide new parameter, clashing with rewrite of previously last
parameter that used to be an 'append' flag, and is now a bitmap of
'unsigned long flags').

(Also some header file fallout - like so many merges this merge window -
and silly conflicts with sparse fixes)

* tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6: (120 commits)
  mtd: docg3 add protection against concurrency
  mtd: docg3 refactor cascade floors structure
  mtd: docg3 increase write/erase timeout
  mtd: docg3 fix inbound calculations
  mtd: nand: gpmi: fix function annotations
  mtd: phram: fix section mismatch for phram_setup
  mtd: unify initialization of erase_info->fail_addr
  mtd: support ONFI multi lun NAND
  mtd: sm_ftl: fix typo in major number.
  mtd: add device-tree support to spear_smi
  mtd: spear_smi: Remove default partition information from driver
  mtd: Add device-tree support to fsmc_nand
  mtd: fix section mismatch for doc_probe_device
  mtd: nand/fsmc: Remove sparse warnings and errors
  mtd: nand/fsmc: Add DMA support
  mtd: nand/fsmc: Access the NAND device word by word whenever possible
  mtd: nand/fsmc: Use dev_err to report error scenario
  mtd: nand/fsmc: Use devm routines
  mtd: nand/fsmc: Modify fsmc driver to accept nand timing parameters via platform
  mtd: fsmc_nand: add pm callbacks to support hibernation
  ...
2012-03-30 17:31:56 -07:00
Huang Shijie
921de864b7 mxs-dma : rewrite the last parameter of mxs_dma_prep_slave_sg()
[1] Background :
    The GPMI does ECC read page operation with a DMA chain consist of three DMA
    Command Structures. The middle one of the chain is used to enable the BCH,
    and read out the NAND page.

    The WAIT4END(wait for command end) is a comunication signal between
    the GPMI and MXS-DMA.

[2] The current DMA code sets the WAIT4END bit at the last one, such as:

    +-----+               +-----+                      +-----+
    | cmd | ------------> | cmd | ------------------>  | cmd |
    +-----+               +-----+                      +-----+
                                                          ^
                                                          |
                                                          |
                                                     set WAIT4END here

    This chain works fine in the mx23/mx28.

[3] But in the new GPMI version (used in MX50/MX60), the WAIT4END bit should
    be set not only at the last DMA Command Structure,
    but also at the middle one, such as:

    +-----+               +-----+                      +-----+
    | cmd | ------------> | cmd | ------------------>  | cmd |
    +-----+               +-----+                      +-----+
                             ^                            ^
                             |                            |
                             |                            |
                        set WAIT4END here too        set WAIT4END here

    If we do not set WAIT4END, the BCH maybe stalls in "ECC reading page" state.
    In the next ECC write page operation, a DMA-timeout occurs.
    This has been catched in the MX6Q board.

[4] In order to fix the bug, rewrite the last parameter of mxs_dma_prep_slave_sg(),
    and use the dma_ctrl_flags:
    ---------------------------------------------------------
      DMA_PREP_INTERRUPT : append a new DMA Command Structrue.
      DMA_CTRL_ACK       : set the WAIT4END bit for this DMA Command Structure.
    ---------------------------------------------------------

[5] changes to the relative drivers:
    <1> For mxs-mmc driver, just use the new flags, do not change any logic.
    <2> For gpmi-nand driver, and use the new flags to set the DMA
        chain, especially for ecc read page.

Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Huang Shijie <b32955@freescale.com>
Acked-by: Vinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-03-27 00:37:28 +01:00
Huang Shijie
3946860409 mxs-dma : move the mxs dma.h to a more common place
Move the header to a more common place.
The mxs dma engine is not only used in mx23/mx28, but also used
in mx50/mx6q.  It will also be used in the future chips.

Rename it to mxs-dma.h, and create a new folder include/linux/fsl/ to
store the Freescale's header files.

change mxs-dma driver, mxs-mmc driver, gpmi-nand driver, mxs-saif driver
to the new header file.

Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Huang Shijie <b32955@freescale.com>
Acked-by: Vinod Koul <vinod.koul@linux.intel.com>
Acked-by: Chris Ball <cjb@laptop.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-03-27 00:37:23 +01:00
Alexandre Bounine
16052827d9 dmaengine/dma_slave: introduce inline wrappers
Add inline wrappers for device_prep_slave_sg() and device_prep_dma_cyclic()
interfaces to hide new parameter from current users of affected interfaces.
Convert current users to use new wrappers instead of direct calls.
Suggested by Russell King [https://lkml.org/lkml/2012/2/3/269].

Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-03-21 19:20:22 +05:30
Linus Torvalds
57f2685c16 Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (53 commits)
  ARM: mach-shmobile: specify CHCLR registers on SH7372
  dma: shdma: fix runtime PM: clear channel buffers on reset
  dma/imx-sdma: save irq flags when use spin_lock in sdma_tx_submit
  dmaengine/ste_dma40: clear LNK on channel startup
  dmaengine: intel_mid_dma: remove legacy pm interface
  ASoC: mxs: correct 'direction' of device_prep_dma_cyclic
  dmaengine: intel_mid_dma: error path fix
  dmaengine: intel_mid_dma: locking and freeing fixes
  mtd: gpmi-nand: move to dma_transfer_direction
  mtd: fix compile error for gpmi-nand
  mmc: mxs-mmc: fix the dma_transfer_direction migration
  dmaengine: add DMA_TRANS_NONE to dma_transfer_direction
  dma: mxs-dma: Don't use CLKGATE bits in CTRL0 to disable DMA channels
  dma: mxs-dma: make mxs_dma_prep_slave_sg() multi user safe
  dma: mxs-dma: Always leave mxs_dma_init() with the clock disabled.
  dma: mxs-dma: fix a typo in comment
  DMA: PL330: Remove pm_runtime_xxx calls from pl330 probe/remove
  video i.MX IPU: Fix display connections
  i.MX IPU DMA: Fix wrong burstsize settings
  dmaengine/ste_dma40: allow fixed physical channel
  ...

Fix up conflicts in drivers/dma/{Kconfig,mxs-dma.c,pl330.c}

The conflicts looked pretty trivial, but I'll ask people to verify them.
2012-01-17 18:40:24 -08:00
Linus Torvalds
4b8be38cf7 MMC highlights for 3.3:
Core:
  * Support for the HS200 high-speed eMMC mode.
  * Support SDIO 3.0 Ultra High Speed cards.
  * Kill pending block requests immediately if card is removed.
  * Enable the eMMC feature for locking boot partitions read-only
    until next power on, exposed via sysfs.
 
 Drivers:
  * Runtime PM support for Intel Medfield SDIO.
  * Suspend/resume support for sdhci-spear.
  * sh-mmcif now processes requests asynchronously.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJPD0P3AAoJEHNBYZ7TNxYMLBQP/1nwYE0Y1prrKsiv6PWQlcDu
 LZl6kylgkq1Nd7hEX1E+kXjv+ec5Z+7RxqmyMerRJIMsfBtowLL0r9rzAu+BsNjZ
 t7YSODLCzCp80WGMDSxhgQEOiAXMlpTzD46hXC2hOjNyTXCsGz1smUfryLPCP6v/
 QbWZi43cDN+Ok5AEw8sdNIfdJYreIAPnziO6Mttvi9iFgozpxdmSJXco+kjJKd2U
 lYEG/kcfug2eJRxmsQP9v4W1Y274tFrV9VLP4mgBabFMvKlXN3uU9tqf2S9JDPv8
 Y95OzKsyk6pwOTKKL8LLS/FVd3pUoHWkf5CwlH7QPR/NgiWV8DcC7bGCyBKdTAwZ
 14yolNVAKdLday7+DoKCk4Eac69exmBNnED9Ky37B+STiob/5qd3iLqspFBITUQU
 F9bUSyw9HkdWfD4zeUD4qj9iyc6Xgzk5HbxOyJb8Wgg3VlhVESkIBeOQ/ZLT35EC
 ihYStdu/No/p9r5XLClHAUuo55vT5ypGWFHAeJeUtt/BMKB3ZrHcqoihge2PAjkz
 pnudMf5TXD4ZUYanIT8SFfmuGisoax0Qg99+xyuYZ1c8foJ7LsMSDqEicwrxi07e
 0TT8Z37lrR+FRkusRA+nQ5Ba9/iOdVGq2DdiDUGlaYIaIWYVWNXEgjOPDzS5kfoA
 PVuJRYhR4fIeFb0aqa/p
 =LJnN
 -----END PGP SIGNATURE-----

Merge tag 'mmc-merge-for-3.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

MMC highlights for 3.3:

Core:
 * Support for the HS200 high-speed eMMC mode.
 * Support SDIO 3.0 Ultra High Speed cards.
 * Kill pending block requests immediately if card is removed.
 * Enable the eMMC feature for locking boot partitions read-only
   until next power on, exposed via sysfs.

Drivers:
 * Runtime PM support for Intel Medfield SDIO.
 * Suspend/resume support for sdhci-spear.
 * sh-mmcif now processes requests asynchronously.

* tag 'mmc-merge-for-3.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (58 commits)
  mmc: fix a deadlock between system suspend and MMC block IO
  mmc: sdhci: restore the enabled dma when do reset all
  mmc: dw_mmc: miscaculated the fifo-depth with wrong bit operation
  mmc: host: Adds support for eMMC 4.5 HS200 mode
  mmc: core: HS200 mode support for eMMC 4.5
  mmc: dw_mmc: fixed wrong bit operation for SDMMC_GET_FCNT()
  mmc: core: Separate the timeout value for cache-ctrl
  mmc: sdhci-spear: Fix compilation error
  mmc: sdhci: Deal with failure case in sdhci_suspend_host
  mmc: dw_mmc: Clear the DDR mode for non-DDR
  mmc: sd: Fix SDR12 timing regression
  mmc: sdhci: Fix tuning timer incorrect setting when suspending host
  mmc: core: Add option to prevent eMMC sleep command
  mmc: omap_hsmmc: use threaded irq handler for card-detect.
  mmc: sdhci-pci: enable runtime PM for Medfield SDIO
  mmc: sdhci: Always pass clock request value zero to set_clock host op
  mmc: sdhci-pci: remove SDHCI_QUIRK2_OWN_CARD_DETECTION
  mmc: sdhci-pci: get gpio numbers from platform data
  mmc: sdhci-pci: add platform data
  mmc: sdhci: prevent card detection activity for non-removable cards
  ...
2012-01-13 20:41:15 -08:00