Commit Graph

1077 Commits

Author SHA1 Message Date
Linus Torvalds 8a6b52140f spi: Updates for 3.6
Grant is still away so another pull request with some fairly minor
 fixes, the most notable of which are several fixes for some common error
 patterns with the reference counting spi_master_get/put do.
 -
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABAgAGBQJQLrxzAAoJEFJkBDiqVpZ4xHIP+wQ8wi6X/HkB4I7EA9aET/hO
 UzyUTZtK6UQGjpqOBK0S38BMweyC23rbeYCcyWgF7rKI7IEjlul1r4O3iChgmeWR
 0ksrDfAIajb+9r1VoN7JQXnqk6miIIFdK2rotLNPnpbNlJTFCmmXD2FK5Zfc/pNA
 e3OjFvtMcaOGjTo5xvN3RK3e2IcH3eKHLCeoj33bKqElT6loITHPnOaEWyIe6QCc
 ExNCiv+D4apTRZ7nlvrttJrNtoMrL49rMy4rz0Z68nsClf1RZeZlTbVeT9+le3LQ
 VhrHUeW8TqYYPBuyMgDyCCBmkVlTZCODBaW2ZtXaC32n72luJuDgq3cZBXhCYuKe
 OPibJSY9j1P9CQBlro6Ccb/3pMjfegaLKCKsSHOdaMF730z9CImT78a2hVgMCNjQ
 WsUDwsOp8l8iJpgTylD1ijQGhH5h7yfp1TXc8rdeEWsRlI2wovCJtU4G4okvFUID
 UQFWShim73f6tDE5dzSYhzigg1ikbaOe5CpO3xk1foyNOx/o3/7U7Da0P5t6yVBa
 zwW/zXdl3GWMLGkqL+oHHMDGLGPeALsgIzMwSMVQY6cK3qROL3fJI9ajk31a1zeP
 sbWx53G2/AHDOqmvvXbuM/GJ8FOrQx7qJ/A2kLp+Fd+y8j/X15C28qVjQYNCJCXi
 x/02RXln1MxLrFKVasvn
 =8RgT
 -----END PGP SIGNATURE-----

Merge tag 'spi-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc

Pull spi fixes from Mark Brown:
 "Grant is still away so another pull request with some fairly minor
  fixes, the most notable of which are several fixes for some common
  error patterns with the reference counting spi_master_get/put do."

* tag 'spi-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc:
  spi/coldfire-qspi: Drop extra calls to spi_master_get in suspend/resume functions
  spi: spi-coldfire-qspi: Drop extra spi_master_put in device remove function
  spi/pl022: fix spi-pl022 pm enable at probe
  spi/bcm63xx: Ensure that memory is freed only after it is no longer used
  spi: omap2-mcspi: Fix the error handling in probe
  spi/s3c64xx: Add missing static storage class specifiers
2012-08-20 13:05:27 -07:00
Guenter Roeck af36107968 spi/coldfire-qspi: Drop extra calls to spi_master_get in suspend/resume functions
Suspend and resume functions call spi_master_get() without matching
spi_master_put(). The extra references are unnecessary and cause
subsequent module unload attempts to fail, so drop the calls.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-17 22:46:41 +01:00
Guenter Roeck a0c3652caa spi: spi-coldfire-qspi: Drop extra spi_master_put in device remove function
The call sequence spi_alloc_master/spi_register_master/spi_unregister_master is
complete; it reduces the device reference count to zero, which and results in
device memory being freed. The subsequent call to spi_master_put is unnecessary
and results in an access to free memory. Drop it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-17 22:46:41 +01:00
Michel JAOUEN 6887237cd7 spi/pl022: fix spi-pl022 pm enable at probe
amba drivers does not need to enable pm runtime at probe.
amba_probe already enables pm runtime.

This rids this warning in the ux500 boot log:
ssp-pl022 ssp0: Unbalanced pm_runtime_enable!

Signed-off-by: Michel JAOUEN <michel.jaouen@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-17 22:46:41 +01:00
Guenter Roeck 1f68237865 spi/bcm63xx: Ensure that memory is freed only after it is no longer used
The call to spi_unregister_master() in the device remove function frees device
memory, and with it any device local data. However, device local data is still
accessed after the call to spi_unregister_master().

Acquire a reference to the SPI device and release it after cleanup is complete
to solve the problem.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-13 13:29:20 +01:00
Arnd Bergmann 4732cc6360 spi/s3c64xx: improve error handling
When a device tree definition os an s3c64xx SPI master is missing
a "controller-data" subnode, the newly added s3c64xx_get_slave_ctrldata
function might use uninitialized memory in place of that node,
which was correctly reported by gcc.

Without this patch, building s3c6400_defconfig results in:

drivers/spi/spi-s3c64xx.c: In function 's3c64xx_get_slave_ctrldata.isra.25':
drivers/spi/spi-s3c64xx.c:841:5: warning: 'data_np' may be used uninitialized in this function [-Wuninitialized]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: Jaswinder Singh <jaswinder.singh@linaro.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
2012-08-10 12:27:47 +02:00
Shubhrajyoti D 37a2d84a38 spi: omap2-mcspi: Fix the error handling in probe
The kfree() is taken care of by the spi core (spi_master_release() function)
that is called once the last reference to the underlying struct device has
been released. So the driver need not call kfree.

Also the put was missed in some of the error handling fix the same.
There by fixing the missing device_put in some of the error paths.

Acked-by: Guenter Roeck <linux@roeck-us.net>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-04 12:06:47 +01:00
Sachin Kamat 10ce0473e0 spi/s3c64xx: Add missing static storage class specifiers
Silences the following sparse warnings:
drivers/spi/spi-s3c64xx.c:1482:32: warning:
symbol 's3c2443_spi_port_config' was not declared. Should it be static?
drivers/spi/spi-s3c64xx.c:1489:32: warning:
symbol 's3c6410_spi_port_config' was not declared. Should it be static?
drivers/spi/spi-s3c64xx.c:1495:32: warning:
symbol 's5p64x0_spi_port_config' was not declared. Should it be static?
drivers/spi/spi-s3c64xx.c:1501:32: warning:
symbol 's5pc100_spi_port_config' was not declared. Should it be static?
drivers/spi/spi-s3c64xx.c:1508:32: warning:
symbol 's5pv210_spi_port_config' was not declared. Should it be static?
drivers/spi/spi-s3c64xx.c:1515:32: warning:
symbol 'exynos4_spi_port_config' was not declared. Should it be static?

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-08-04 12:06:47 +01:00
Linus Torvalds a6dc77254b Merge branch 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM DMA engine updates from Russell King:
 "This looks scary at first glance, but what it is is:
   - a rework of the sa11x0 DMA engine driver merged during the previous
     cycle, to extract a common set of helper functions for DMA engine
     implementations.
   - conversion of amba-pl08x.c to use these helper functions.
   - addition of OMAP DMA engine driver (using these helper functions),
     and conversion of some of the OMAP DMA users to use DMA engine.

  Nothing in the helper functions is ARM specific, so I hope that other
  implementations can consolidate some of their code by making use of
  these helpers.

  This has been sitting in linux-next most of the merge cycle, and has
  been tested by several OMAP folk.  I've tested it on sa11x0 platforms,
  and given it my best shot on my broken platforms which have the
  amba-pl08x controller.

  The last point is the addition to feature-removal-schedule.txt, which
  will have a merge conflict.  Between myself and TI, we're planning to
  remove the old TI DMA implementation next year."

Fix up trivial add/add conflicts in Documentation/feature-removal-schedule.txt
and drivers/dma/{Kconfig,Makefile}

* 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm: (53 commits)
  ARM: 7481/1: OMAP2+: omap2plus_defconfig: enable OMAP DMA engine
  ARM: 7464/1: mmc: omap_hsmmc: ensure probe returns error if DMA channel request fails
  Add feature removal of old OMAP private DMA implementation
  mtd: omap2: remove private DMA API implementation
  mtd: omap2: add DMA engine support
  spi: omap2-mcspi: remove private DMA API implementation
  spi: omap2-mcspi: add DMA engine support
  ARM: omap: remove mmc platform data dma_mask and initialization
  mmc: omap: remove private DMA API implementation
  mmc: omap: add DMA engine support
  mmc: omap_hsmmc: remove private DMA API implementation
  mmc: omap_hsmmc: add DMA engine support
  dmaengine: omap: add support for cyclic DMA
  dmaengine: omap: add support for setting fi
  dmaengine: omap: add support for returning residue in tx_state method
  dmaengine: add OMAP DMA engine driver
  dmaengine: sa11x0-dma: add cyclic DMA support
  dmaengine: sa11x0-dma: fix DMA residue support
  dmaengine: PL08x: ensure all descriptors are freed when channel is released
  dmaengine: PL08x: get rid of write only pool_ctr and free_txd locking
  ...
2012-08-01 16:41:07 -07:00
Russell King 8c7494a501 spi: omap2-mcspi: remove private DMA API implementation
Remove the private DMA API implementation from spi-omap2-mcspi.c,
making it use entirely the DMA engine API.

Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-31 12:06:24 +01:00
Russell King 53741ed8f0 spi: omap2-mcspi: add DMA engine support
Add DMA engine support to the OMAP SPI driver.  This supplements the
private DMA API implementation contained within this driver, and the
driver can be independently switched at build time between using DMA
engine and the private DMA API for the transmit and receive sides.

Tested-by: Shubhrajyoti <shubhrajyoti@ti.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-31 12:06:24 +01:00
Linus Torvalds 287dc4b764 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "More hardware support across the field including a bunch of device
  drivers.  The highlight however really are further steps towards
  device tree.

  This has been sitting in -next for ages.  All MIPS _defconfigs have
  been tested to boot or where I don't have hardware available, to at
  least build fine."

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (77 commits)
  MIPS: Loongson 1B: Add defconfig
  MIPS: Loongson 1B: Add board support
  MIPS: Netlogic: early console fix
  MIPS: Netlogic: Fix indentation of smpboot.S
  MIPS: Netlogic: remove cpu_has_dc_aliases define for XLP
  MIPS: Netlogic: Remove unused pcibios_fixups
  MIPS: Netlogic: Add XLP SoC devices in FDT
  MIPS: Netlogic: Add IRQ mappings for more devices
  MIPS: Netlogic: USB support for XLP
  MIPS: Netlogic: XLP PCIe controller support.
  MIPS: Netlogic: Platform changes for XLR/XLS I2C
  MIPS: Netlogic: Platform NAND/NOR flash support
  MIPS: Netlogic: Platform changes for XLS USB
  MIPS: Netlogic: Remove NETLOGIC_ prefix
  MIPS: Netlogic: SMP wakeup code update
  MIPS: Netlogic: Update comments in smpboot.S
  MIPS: BCM63XX: Add 96328avng reference board
  MIPS: Expose PCIe drivers for MIPS
  MIPS: BCM63XX: Add PCIe Support for BCM6328
  MIPS: BCM63XX: Move the PCI initialization into its own function
  ...
2012-07-30 11:45:52 -07:00
Linus Torvalds 0082c16e3a spi: Updates for 3.6
Since Grant is even more specacularly busy than usual for the time being
 I've been collecting SPI patches for him for this release - probably
 things will revert back to Grant before the next release.  There's
 nothing too exciting here, mostly it's simple driver specific stuff:
 
 - Add spi: to the modaliases of SPI devices to provide namespacing.
 - A driver for AD-FMCOMMS1-EBZ.
 - DT binding for Orion.
 - Fixes and cleanups for i.MX, PL0022, OMAP and bitbang drivers.
 
 There may be a few more fixes I've missed, people keep sending me new
 things.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABAgAGBQJQD+gTAAoJEBus8iNuMP3diecP/j88CTuSVi2C9LQ6irty2q6y
 62eLoR5m5J9zqqRlsFLkerxuanlwyD0WPR4B86SZMr/TQbXkLtmdVyQwSieyMfnN
 4HSrFQawCnVANoBrvnKa1vHfP4ouBStXIZa5v/iSAC4tN4K/wVGUvl6Kral5+ktC
 5BRwcEdcrVR4KnD74i7ombopM/hl6fRdNS+TwgfXlGwGFHPYbHOa+aJZnGUORWfw
 30jrKLap8cTGLDTFQ+Lu8WPzap+RuGlMSWGhXlYrivKNepvpt/WEMhJnfJ/ADLqO
 ASGe3C69xGTF6YRETSoH5+1VZjRhf+S9y/nV5gkQZKtDDGez5iFmCGZtv/m87u6/
 nIuTICa7QjI9bvP9novq0h6EUwURyL4dtdC4VI3IedIpgFiKGxz3J63YJLsIc7tH
 5jXPJAkyU/yj23eDywftYZskK3iNYOthB2VO3JPcmGQRXeMWDvTPXXJBcOy5fvW0
 aOmE+vXINiQnmddBBNIuhPGRlJUGSpHLaioz+H2+unrNPHjQnv+CSHt7YuYwjTGp
 IFFwVSUK6r4O+/W7ciKalVQr0bjTM6J3wO0sCqxta1qVoI89RgcM3h3XwXTCb6Ly
 0Ywgn+3W71XDiY+L4VvYRTcur2kGB/rmIsIORuqS/FkhR9iuIx7u30d6KmlGR2ak
 i+cExj0Qo/pF4TXDw22W
 =I2b9
 -----END PGP SIGNATURE-----

Merge tag 'spi-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc

Pull spi updates from Mark Brown:
 "Since Grant is even more specacularly busy than usual for the time
  being I've been collecting SPI patches for him for this release -
  probably things will revert back to Grant before the next release.

  There's nothing too exciting here, mostly it's simple driver specific
  stuff:

   - Add spi: to the modaliases of SPI devices to provide namespacing.
   - A driver for AD-FMCOMMS1-EBZ.
   - DT binding for Orion.
   - Fixes and cleanups for i.MX, PL0022, OMAP and bitbang drivers.

   There may be a few more fixes I've missed, people keep sending me new
   things."

* tag 'spi-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc:
  spi/orion: remove uneeded spi_info
  spi/bcm63xx: fix clock configuration selection
  spi/orion: add device tree binding
  spi/omap2: mark omap2_mcspi_master_setup as __devinit
  spi: omap2-mcspi: Fix the below warning
  spi: Add AD-FMCOMMS1-EBZ I2C-SPI bridge driver
  spi/imx: use gpio_is_valid to determine if a gpio is valid
  spi/imx: remove redundant config.speed_hz setting
  spi/gpio: start with CS non-active
  spi: tegra: use dmaengine based dma driver
  spi/pl022: cleanup pl022 header documentation
  spi/pl022: enable runtime PM
  spi/pl022: delete DB5500 support
  spi/pl022: disable port when unused
  spi: Add "spi:" prefix to modalias attribute of spi devices
2012-07-26 12:57:41 -07:00
Linus Torvalds 2c05b2c838 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu arch update from Greg Ungerer:
 "Quite a varied set of changes this time.
   - A little more merge cleanup, this time the assembler entry code.
   - New sub-architecture support for the ColdFire 5251/5253 and 5441x
     CPU families.
   - Specific clk support code for the ColdFire 520x and 532x CPU
     familes.
   - Refactoring of the ColdFire GPIO support.
   - PCI bus support for some ColdFire CPUS that have PCI hardware (54xx
     family).  This showed up a few problems with ColdFire cache,
     allocating coherent memory and bi-directional DMA support.  Fixes
     for those too."

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (21 commits)
  m68k: allow PCI bus to be enabled for ColdFire m54xx CPUs
  m68k: add PCI bus code support for the ColdFire M54xx SoC family
  m68k: add IO access definitions to support PCI on ColdFire platforms
  m68k: add PCI bus support definitions for the ColdFire M54xx SoC family
  m68k: common PCI support definitions and code
  m68k: add support for DMA_BIDIRECTIONAL in dma support functions
  m68k: fix ColdFire clear cache operation
  m68k: use simpler dma_alloc_coherent() for ColdFire CPUs
  m68knommu: platform support for 8390 based ethernet used on some boards
  m68knommu: Add clk definitions for m532x.
  m68knommu: Add clk definitions for m520x.
  m68knommu: Add rtc device for m5441x.
  m68knommu: add definitions for the third interrupt controller on devices that don't have a third interrupt controller.
  m68knommu: Add support for the Coldfire m5441x.
  m68knommu: use MCF_IRQ_PIT1 instead of MCFINT_VECBASE + MCFINT_PIT1
  coldfire-qspi: Add support for the Coldfire 5251/5253.
  m68knommu: Add support for the Coldfire 5251/5253
  m68knommu: refactor Coldfire GPIO not to require GPIOLIB, eliminate mcf_gpio_chips.
  m68k: merge the MMU and non-MMU versions of the entry.S code
  m68k: use jbsr to call functions instead of bsrl
  ...
2012-07-24 17:20:51 -07:00
Linus Torvalds 97e7292ab5 arm-soc: clk changes
Clock support is moving to the clk subsystem. These tegra, omap and imx
 changes are for code that is still platform specific and not (yet)
 part of that subsystem.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIVAwUAUA2dh2CrR//JCVInAQLm6g//UD7Q6xc/1I9/k0c/V35o4FRgmOt9xIp2
 ofsB801AnYOOusFWkcBa8xb6zFQuNQwR6OflkYBBV+31Zp2cNHgF9SVxaYlh43MD
 iptUnCh8VzSEFFZGy1Vi3sdrKY5fw5dyffPjgv8HtWQzs4r8H+98UnNQFbkTwPft
 9TxAeH73LRm4uNI/E8OerYN78TOefBK8p6HXyNW//MCzb59aG73/iD3EACrAmvyY
 gtyhLMtPeZTUWh3Fy5vXd9cfCmzQOAH/ADeMxVyx2QFyb3vCcPoS8Z5plh3zIjMt
 Ze0KlhHkB5lfBGBOB3gA/7ItlclhL2qLNkuhM2CBgYg+WTZ4OqaJCv80+OK8X4i5
 XCVjuDG++CFH09jDnMPXeUBM6UHwRV3f/HIRhaL8nH+nq1mU5HzEGrvBZTnOIklI
 XNoOpAMVPih64vH8PIQL/8oXT+cNHyVkmKA2uqRKq+mgqC+FIjG7EKBmIVORr7eI
 HmDHtHpRZY9EpK/cfgykDl4ELDITEaaitxvk0uqchSj3SXjfmbBXNKKcInQhDKaZ
 TKRMCgzeTu4NXSrRyHAP2toKUQNSziB7mwL7aHD6LMloqP1jBVOyZpxAIVwt19lZ
 qBAAatYGYocbssypI/E4CptTn3uC3dQiXDHRNJkZC/4o5suZoW9wpT77yvQNR/YQ
 GBO0bhQCI0Y=
 =Cvpa
 -----END PGP SIGNATURE-----

Merge tag 'clk' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc clk changes from Arnd Bergmann:
 "Clock support is moving to the clk subsystem.  These tegra, omap and
  imx changes are for code that is still platform specific and not (yet)
  part of that subsystem."

Fix up conflicts in arch/arm/mach-{imx/clk-imx51-imx53.c,omap2/Makefile}

* tag 'clk' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (23 commits)
  ARM: imx: clk-imx31: Fix clock id for rnga driver
  ARM: imx: add missing item to the list of clock event modes
  ARM: i.MX5x CSPI: Fixed clock name for CSPI
  ARM: i.MX5x clocks: Fix GPT clocks
  ARM: i.MX5x clocks: Fix parent for PWM clocks
  ARM: i.MX5x clocks: Add EPIT support
  ARM: mx27: Reenable silicon version print
  ARM: clk-imx27: Fix rtc clock id
  ARM: tegra: Provide clock for only one PWM controller
  ARM: tegra: Fix PWM clock programming
  ARM: OMAP3+: clock33xx: Add AM33XX clock tree data
  ARM: OMAP3+: clock: Move common clksel_rate & clock data to common file
  ARM: tegra: dma: rename driver name for clock to "tegra-apbdma"
  ARM: tegra: Remove second instance of uart clk
  crypto: add clk_prepare/clk_unprepare
  ASoC: tegra: add clk_prepare/clk_unprepare
  staging: nvec: add clk_prepare/clk_unprepare
  spi/tegra: add clk_prepare/clk_unprepare
  Input: tegra-kbc - add clk_prepare/clk_unprepare
  USB: ehci-tegra: add clk_prepare/clk_unprepare
  ...
2012-07-23 17:51:03 -07:00
Michael Walle 8ceffa7c4a spi/orion: remove uneeded spi_info
This was formerly used to store the tclk value. This is now discovered
using the clk API, rather than pass it as platform data.

Signed-off-by: Michael Walle <michael@walle.cc>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@googlemail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-23 14:14:54 +01:00
Florian Fainelli d76ea24ac4 spi/bcm63xx: fix clock configuration selection
We are currently using an inferior or equal operator for comparing
the transfer frequency with the clock frequency table. Because of
this, we always end up selecting 20Mhz as a frequency, due to the
inequality transfer hz <= 20 Mhz being always true. Fix this by
reversing the inequality, which is how the comparison should be done.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-23 14:14:11 +01:00
Thomas Langer 6cd3c7e2b1 SPI: MIPS: lantiq: add FALCON spi driver
The external bus unit (EBU) found on the FALCON SoC has spi emulation that is
designed for serial flash access. This driver has only been tested with m25p80
type chips. The hardware has no support for other types of spi peripherals.

Signed-off-by: Thomas Langer <thomas.langer@lantiq.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: spi-devel-general@lists.sourceforge.net
Cc: linux-mips@linux-mips.org
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Patchwork: https://patchwork.linux-mips.org/patch/3844/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-07-23 13:56:30 +01:00
Andrew Lunn f814f9ac5a spi/orion: add device tree binding
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@googlemail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-23 11:43:39 +01:00
Arnd Bergmann 24ab327511 spi/omap2: mark omap2_mcspi_master_setup as __devinit
This warning recently appeared with omap2plus_defconfig:

WARNING: drivers/spi/built-in.o(.devinit.text+0x3c4): Section mismatch in reference from the function omap2_mcspi_probe() to the function .init.text:omap2_mcspi_master_setup()
The function __devinit omap2_mcspi_probe() references
a function __init omap2_mcspi_master_setup().
If omap2_mcspi_master_setup is only used by omap2_mcspi_probe then
annotate omap2_mcspi_master_setup with a matching annotation.

The fix is obviously to mark the omap2_mcspi_master_setup function as
__devinit, rather than __init.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-22 20:07:28 +01:00
Shubhrajyoti D a3ce9a801b spi: omap2-mcspi: Fix the below warning
The dma_map and dma_unmap should have same parameter
passed otherwise we get the below warn.

ks8851 spi1.0: DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x000000009f22]

[    2.066925] Modules linked in:
[    2.070312]
[    2.071929] [<c001c250>] (unwind_backtrace+0x0/0x130) from [<c0043d84>] (warn_slowpath_common+0x4c/0x64)
[    2.081909] [<c0043d84>] (warn_slowpath_common+0x4c/0x64) from [<c0043e30>] (warn_slowpath_fmt+0x30/0x40)
[    2.091949] [<c0043e30>] (warn_slowpath_fmt+0x30/0x40) from [<c0293824>] (check_unmap+0x6d0/0x7b0)
[    2.101348] [<c0293824>] (check_unmap+0x6d0/0x7b0) from [<c02939cc>] (debug_dma_unmap_page+0x64/0x70)
[    2.111053] [<c02939cc>] (debug_dma_unmap_page+0x64/0x70) from [<c03519a4>] (omap2_mcspi_txrx_dma+0x2d8/0x4fc)
[    2.121582] [<c03519a4>] (omap2_mcspi_txrx_dma+0x2d8/0x4fc) from [<c03524d8>] (omap2_mcspi_work.clone.4+0xf0/0x290)
[    2.132537] [<c03524d8>] (omap2_mcspi_work.clone.4+0xf0/0x290) from [<c0352900>] (omap2_mcspi_transfer_one_message+0x288/0x438)
[    2.144592] [<c0352900>] (omap2_mcspi_transfer_one_message+0x288/0x438) from [<c03503bc>] (spi_pump_messages+0x100/0x160)
[    2.156127] [<c03503bc>] (spi_pump_messages+0x100/0x160) from [<c006635c>] (kthread_worker_fn+0xac/0x180)
[    2.166168] [<c006635c>] (kthread_worker_fn+0xac/0x180) from [<c0066578>] (kthread+0x90/0x9c)
[    2.175140] [<c0066578>] (kthread+0x90/0x9c) from [<c00157fc>] (kernel_thread_exit+0x0/0x8)
[    2.183898] ---[ end trace d1830ce6e44292f2 ]---

Fix the warn by changing the unmap parameter.

Reported-by: Russell King - ARM Linux <linux@arm.linux.org.uk>
Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-20 11:08:44 +01:00
Lars-Peter Clausen b316590043 spi: Add AD-FMCOMMS1-EBZ I2C-SPI bridge driver
This patch adds support for the I2C-SPI bridge which can be found on the Analog
Devices AD-FMCOMMS1-EBZ board.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-20 11:08:44 +01:00
Mark Brown 5fc3e8311c spi/s3c64xx: Expand S3C64XX_SPI_{DE,}ACT macros at call sites
They have very few users and they're both just doing a single register
write so the advantage of having the macro is a bit limited. An inline
function might make sense but it's as easy to just do the writes directly.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-07-19 14:36:23 +09:00
Mark Brown b1ec43084d spi/s3c64xx: Convert to devm_request_and_ioremap()
Saves some error handling and a small amount of code.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-07-19 14:36:19 +09:00
Mark Brown 707214d097 spi/s3c64xx: Put the /CS GPIO into output mode
No call was being made by the GPIO driver to put the GPIO into output
mode meaning that the calls to gpio_set_value() which were being done
were not valid. A similar issue appears to exist with the DT GPIO
requests but as they appear to be being used for pinmux it's less clear
to me that we want to configure them.

Without this fix Cragganmore systems can't talk to their SPI devices.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-07-19 14:36:16 +09:00
Mark Brown 49f3eacfcd spi/s3c64xx: Fix handling of errors in gpio_request()
When gpio_request() fails the driver logged the failure but while it'd
try to print an error code in the non-DT case it didn't pass the error
code in so garbage would be logged and in the DT case the error wasn't
logged.

Further, in the non-DT case the error code was then overwritten with -EBUSY
depriving the caller of information and breaking automatic probe deferral
pushing back from the GPIO level.  Also reformat the non-DT log message
so it's not word wrapped and we can grep for it.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-07-19 14:36:13 +09:00
Steven King bce4d12bf8 coldfire-qspi: Add support for the Coldfire 5251/5253.
The Coldfire 5251/5253 have a QSPI controller.  Enable selection of the
coldfire-qspi driver if the M525x is selected.

Signed-off-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-07-16 09:59:21 +10:00
Hui Wang 8b17e0559f spi/imx: use gpio_is_valid to determine if a gpio is valid
Use gpio_is_valid() to replace "gpio >= 0" or "gpio < 0".

Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Hui Wang <jason77.wang@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-13 11:01:46 +01:00
Hui Wang 872675df27 spi/imx: remove redundant config.speed_hz setting
The config.speed_hz is just setted at the two lines ahead of it,
obviously we don't need to copy the code to set the config.speed_hz
again. Remove it for a cleanup.

Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Hui Wang <jason77.wang@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-13 11:01:46 +01:00
Thomas Abraham 2b90807549 spi: s3c64xx: add device tree support
Add support for device based discovery.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Jaswinder Singh <jaswinder.singh@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-07-13 15:23:49 +09:00
Thomas Abraham 1c20c200ef spi: s3c64xx: Remove the 'set_level' callback from controller data
The set_level callback in the controller data, which is used to configure
the slave select line, cannot be supported when migrating the driver to
device tree based discovery. Since all the platforms currently use gpio
as the slave select line, this callback can be removed from the
controller data and replaced with call to gpio_set_value in the driver.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Jaswinder Singh <jaswinder.singh@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-07-13 15:23:48 +09:00
Thomas Abraham 868dee91a5 ARM: SAMSUNG: Remove pdev pointer parameter from spi gpio setup functions
The platform data pointer that is passed to the spi gpio setup functions
is not used. Hence, this parameter is removed from all the spi gpio setup
functions.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Jaswinder Singh <jaswinder.singh@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-07-13 15:23:46 +09:00
Thomas Abraham a5238e360b spi: s3c64xx: move controller information into driver data
Platform data is used to specify controller hardware specific information
such as the tx/rx fifo level mask and bit offset of rx fifo level. Such
information is not suitable to be supplied from device tree. Instead,
it can be moved into the driver data and removed from platform data.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Jaswinder Singh <jaswinder.singh@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-07-13 15:23:46 +09:00
Thomas Abraham 2b54be6611 spi: s3c64xx: remove unused S3C64XX_SPI_ST_TRLCNTZ macro
The macro S3C64XX_SPI_ST_TRLCNTZ is not used and hence it is removed.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Jaswinder Singh <jaswinder.singh@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-07-13 15:23:44 +09:00
Kukjin Kim 4d3c463634 Merge branch 'next/devel-dma-ops' into next/dt-samsung 2012-07-13 07:15:08 +09:00
Mark Brown 9e9fd65d1f Merge branch 'pl022' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into spi-next 2012-07-11 10:31:07 +01:00
Uwe Kleine-König 0564414706 spi/gpio: start with CS non-active
The chip select line was configured as output with the initial value
being active explicitly. It was later deasserted during
spi_bitbang_setup() without any clock activity in between. So it makes
no sense to activate the device at all and the chip select line can
better start non-active.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-10 15:28:56 +01:00
Laxman Dewangan 619ac8d3e5 spi: tegra: use dmaengine based dma driver
Use the dmaengine based Tegra APB DMA driver for
data transfer between SPI FIFO and memory in
place of legacy Tegra APB DMA.

The new driver is selected if legacy driver is not
selected and new DMA driver is enabled through config
file.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-07-10 15:28:56 +01:00
Arnd Bergmann 524cd267e5 Merge branch 'for-3.6/common-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/clk
From Stephen Warren <swarren@wwwdotorg.org>:

This branch contains numerous changes required as a baseline in order to
convert Tegra to the common clock framework. The intention was to also
include patches to actually convert Tegra to the common clock framework.
However, those patches appeared late in the kernel cycle and currently
cause regressions on some boards, so were dropped for now.

* 'for-3.6/common-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
  ARM: tegra: Provide clock for only one PWM controller
  ARM: tegra: Fix PWM clock programming
  ARM: tegra: dma: rename driver name for clock to "tegra-apbdma"
  ARM: tegra: Remove second instance of uart clk
  crypto: add clk_prepare/clk_unprepare
  ASoC: tegra: add clk_prepare/clk_unprepare
  staging: nvec: add clk_prepare/clk_unprepare
  spi/tegra: add clk_prepare/clk_unprepare
  Input: tegra-kbc - add clk_prepare/clk_unprepare
  USB: ehci-tegra: add clk_prepare/clk_unprepare
  mmc: tegra: add clk_prepare/clk_unprepare
  i2c: tegra: Add clk_prepare/clk_unprepare
  ARM: tegra: add clk_prepare/clk_unprepare

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-07-06 22:21:23 +02:00
Linus Walleij 2fb30d1147 spi/pl022: enable runtime PM
If we're gonna use runtime PM it's a pretty good idea to actually
enable it in probe() and disable it in remove() too, so it
gets used for real. Up until now we only fooled around with the
reference count.

Cc: Vinit Shenoy <vinit.shenoy@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-07-02 13:55:36 +02:00
Linus Walleij 42f978c3ef spi/pl022: delete DB5500 support
This ASIC variant has been deleted from the ARM tree, no need
to keep support around.

Cc: Vinit Shenoy <vinit.shenoy@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-07-02 13:55:36 +02:00
Virupax Sadashivpetimath fd316941cf spi/pl022: disable port when unused
Commit ffbbdd2132
"spi: create a message queueing infrastructure"
Accidentally deleted the logic to disable the port
when unused leading to higher power consumption.
Fix this up.

Cc: stable@kernel.org
Cc: Vinit Shenoy <vinit.shenoy@st.com>
Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-07-02 13:55:36 +02:00
Boojin Kim 4969c32bab spi/s3c64xx: Add the use of DMA config operation
Config operation is separated from request operation in
DMA common operation. Because spi driver can change the
DMA config for every transfer. So this patch is using the
separated DMA config operation.

Signed-off-by: Boojin Kim <boojin.kim@samsung.com>
Signed-off-by: Kyoungil Kim <ki0351.kim@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-06-20 08:08:35 +09:00
Russell King 10aa5a35e3 SPI: fix over-eager devm_xxx() conversion
1a77b127ae (OMAP : SPI : use devm_* functions) converted the SPI
device controller state to use devm_kzalloc().  Unfortunately, this
is used against an unbound struct device, which results in the
following when the device is bound to its driver:

------------[ cut here ]------------
WARNING: at /home/rmk/git/linux-rmk/drivers/base/dd.c:257 driver_probe_device+0x78/0x21c()
Modules linked in:
Backtrace:
[<c0017d0c>] (dump_backtrace+0x0/0x10c) from [<c033e208>] (dump_stack+0x18/0x1c) r7:00000000 r6:c01ff28c r5:c040050c r4:00000101
[<c033e1f0>] (dump_stack+0x0/0x1c) from [<c00337ec>] (warn_slowpath_common+0x58/0x70)
[<c0033794>] (warn_slowpath_common+0x0/0x70) from [<c0033828>] (warn_slowpath_null+0x24/0x2c)
[<c0033804>] (warn_slowpath_null+0x0/0x2c) from [<c01ff28c>] (driver_probe_device+0x78/0x21c)
[<c01ff214>] (driver_probe_device+0x0/0x21c) from [<c01ff49c>] (__driver_attach+0x6c/0x90)
[<c01ff430>] (__driver_attach+0x0/0x90) from [<c01fda70>] (bus_for_each_dev+0x58/0x98)
[<c01fda18>] (bus_for_each_dev+0x0/0x98) from [<c01ff0f4>] (driver_attach+0x20/0x28)
[<c01ff0d4>] (driver_attach+0x0/0x28) from [<c01fe2f4>] (bus_add_driver+0xb4/0x230)
[<c01fe240>] (bus_add_driver+0x0/0x230) from [<c01ffb24>] (driver_register+0xac/0x138)
[<c01ffa78>] (driver_register+0x0/0x138) from [<c0215d4c>] (spi_register_driver+0x4c/0x60)
[<c0215d00>] (spi_register_driver+0x0/0x60) from [<c045414c>] (ks8851_init+0x14/0x1c)
[<c0454138>] (ks8851_init+0x0/0x1c) from [<c0008770>] (do_one_initcall+0x9c/0x164)
[<c00086d4>] (do_one_initcall+0x0/0x164) from [<c0436410>] (kernel_init+0x128/0x210)
[<c04362e8>] (kernel_init+0x0/0x210) from [<c0038754>] (do_exit+0x0/0x72c)
---[ end trace 4dcda79f5e89dd84 ]---
ks8851 spi1.0: message enable is 0
ks8851 spi1.0: eth0: revision 0, MAC 08:00:28:01:4d:c6, IRQ 194, has EEPROM

Fix this by partially reverting the original commit.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-06-18 11:27:04 +01:00
Prashant Gaikwad cb53417efc spi/tegra: add clk_prepare/clk_unprepare
Use clk_prepare/clk_unprepare as required by the generic clk framework.

Cc: grant.likely@secretlab.ca
cc: spi-devel-general@lists.sourceforge.net
Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
2012-06-12 10:32:54 -06:00
Linus Torvalds 30b842889e arm-soc: soc specific changes, part 2
This adds support for the spear13xx platform, which has first been under
 review a long time ago and finally been completed after generic spear
 work has gone into the clock, dt and pinctrl branches.
 
 Also a number of updates for the samsung socs are part of this branch.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJPuezDAAoJEIwa5zzehBx3mooP/iTHd1wRjr2MzKNx4+LpLWgl
 aAXH002xe9Lvu7m75BRvEYWWdRLkyEy9ARM4s2wJCnxU41KmbF65ED1erxK8xaSe
 Ako34vzH+HiUCM2DLzIP6FXyJMM7OcfrdGaY/GxOv+U+MzGUHeu3Q+8b0B/yfBnm
 M3HdDrpyZHKZP9UM3wVQ4/ilDck6vEjYSV2jC11IaHiDMRD2nSpfRKh8H3+gv65S
 gtj9EZpWM8CZg/fCe5lsm3PZnBnqHHW3WVafVnDQfGWeJYqZxMB5QKLU6qf/ntpx
 LU2WjXoGaMmGBVZWynrwNEY6GVp3fZrDV30/q8Htf0/fBpEjUncrLHXtw0DxkpnK
 UuyoRgn7zxOc3kDzohFNIexp1K3q+PNzXklR9hg7OSVji+9bPd2LIOEnpBeghBGj
 WzZIebz5dIdddHlnOl4fRdmxZva2UTuI4bFAJ0izi10Mup7A9lrENnFHG/iVA0rQ
 QlqJZoyeDCvbXQqZCgHirYRPhIxXdQj4G5IivfRxQ7Jgjy76Kt9uDp1egwezF/3a
 2jVtcK42XokVv3Dhsvq9UNFn9GWdVImZ7eh70XLv+q834zAVxSzjWLtlS8I1Q5WO
 7BGIJaICtugNwgYr44Dif6nsoVUmMnSwU5hVw1pApKZspN6EhMhMdp2hw8JPHFUs
 mrZdHi1NAWuYSbObc3UB
 =W2Ri
 -----END PGP SIGNATURE-----

Merge tag 'soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc: soc specific changes (part 2) from Olof Johansson:
 "This adds support for the spear13xx platform, which has first been
  under review a long time ago and finally been completed after generic
  spear work has gone into the clock, dt and pinctrl branches.

  Also a number of updates for the samsung socs are part of this branch."

Fix up trivial conflicts in drivers/gpio/gpio-samsung.c that look much
worse than they are: the exonys5 init code was refactored in commit
fd454997d6 ("gpio: samsung: refactor gpiolib init for exynos4/5"), and
then commit f10590c983 ("ARM: EXYNOS: add GPC4 bank instance") added a
new gpio chip define and did tiny updates to the init code.

So the conflict diff looks like hell, but it's actually a fairly simple
change.

* tag 'soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (34 commits)
  ARM: exynos: fix building with CONFIG_OF disabled
  ARM: EXYNOS: Add AUXDATA for i2c controllers
  ARM: dts: Update device tree source files for EXYNOS5250
  ARM: EXYNOS: Add device tree support for interrupt combiner
  ARM: EXYNOS: Add irq_domain support for interrupt combiner
  ARM: EXYNOS: Remove a new bus_type instance for EXYNOS5
  ARM: EXYNOS: update irqs for EXYNOS5250 SoC
  ARM: EXYNOS: Add pre-divider and fout mux clocks for bpll and mpll
  ARM: EXYNOS: add GPC4 bank instance
  ARM: EXYNOS: Redefine IRQ_MCT_L0,1 definition
  ARM: EXYNOS: Modify the GIC physical address for static io-mapping
  ARM: EXYNOS: Add watchdog timer clock instance
  pinctrl: SPEAr1310: Fix pin numbers for clcd_high_res
  SPEAr: Update MAINTAINERS and Documentation
  SPEAr13xx: Add defconfig
  SPEAr13xx: Add compilation support
  SPEAr13xx: Add dts and dtsi files
  pinctrl: Add SPEAr13xx pinctrl drivers
  pinctrl: SPEAr: Create macro for declaring GPIO PINS
  SPEAr13xx: Add common clock framework support
  ...
2012-05-26 13:05:55 -07:00
Linus Torvalds 2795343705 arm-soc: clock driver changes
The new clock subsystem was merged in linux-3.4 without any users, this
 now moves the first three platforms over to it: imx, mxs and spear.
 
 The series also contains the changes for the clock subsystem itself,
 since Mike preferred to have it together with the platforms that require
 these changes, in order to avoid interdependencies and conflicts.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJPuexPAAoJEIwa5zzehBx3YBsP/0nFhXjb5t1PdLfFzGKtcZVB
 j4zXWXMHQ1fA7wIfEpZF3Nnco6MQkufF5wJPoPdn1+wmkzCn3D6IwNVWVtW4U5i9
 VGyShSbgusAAYXUe/9yYj8eN+bbRQSvdN4eWYWU6+rRXShGZ5dZZmp+IPNl54dnW
 6F8uCnHX0cnIMCpGqV+41zZgZ/4wL2k9gdqu0LO6pi07o4tGd0Z4gcySgUFAnn1R
 kofNHueYIP4UgOg8DREoBzVKlpRqMou3S2kSZUfMeb3Q9ryF7UIvaGqIILyi7PKL
 kWd3nptg0EPavfL21SwXHiGpnDpB/Gj/F70kcPLus5RYujB24C9bvBmc26z68NZx
 Sz9mbElkkIU5duZsl1nxBWJ8IZ/tSWdtmC2xQMznmV7gHyGgVwr4j47f4Uv5sBvM
 14JHDO7mqN6E6FnTFZu/oPAN5pDjgL+TVNK5BU6Wkq0zitrA6eyKDqCvBCqkO6Nn
 tNzOuyRDzMOwM7HzqXhxqtzJWXylO1Mldc4bM8X4Cocf4pnLna/X6uP6dgE6A+JY
 azVYx4I/0NdEPerDTzIcEhBDgZeBVROhUQr+kHxc4rf6WzUUbu/wEo1UKXWV66oW
 1jb1yAFFWqYjkQuQc2PD4JSx35sFJaoSaoneRtmzBzRDfzSr5KjKj1E0e1skyMFq
 7ZVLCqZD0cB9DhmMDkWP
 =rwFF
 -----END PGP SIGNATURE-----

Merge tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc clock driver changes from Olof Johansson:
 "The new clock subsystem was merged in linux-3.4 without any users,
  this now moves the first three platforms over to it: imx, mxs and
  spear.

  The series also contains the changes for the clock subsystem itself,
  since Mike preferred to have it together with the platforms that
  require these changes, in order to avoid interdependencies and
  conflicts."

Fix up trivial conflicts in arch/arm/mach-kirkwood/common.c (code
removed in one branch, added OF support in another) and
drivers/dma/imx-sdma.c (independent changes next to each other).

* tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (97 commits)
  clk: Fix CLK_SET_RATE_GATE flag validation in clk_set_rate().
  clk: Provide dummy clk_unregister()
  SPEAr: Update defconfigs
  SPEAr: Add SMI NOR partition info in dts files
  SPEAr: Switch to common clock framework
  SPEAr: Call clk_prepare() before calling clk_enable
  SPEAr: clk: Add General Purpose Timer Synthesizer clock
  SPEAr: clk: Add Fractional Synthesizer clock
  SPEAr: clk: Add Auxiliary Synthesizer clock
  SPEAr: clk: Add VCO-PLL Synthesizer clock
  SPEAr: Add DT bindings for SPEAr's timer
  ARM i.MX: remove now unused clock files
  ARM: i.MX6: implement clocks using common clock framework
  ARM i.MX35: implement clocks using common clock framework
  ARM i.MX5: implement clocks using common clock framework
  ARM: Kirkwood: Replace clock gating
  ARM: Orion: Audio: Add clk/clkdev support
  ARM: Orion: PCIE: Add support for clk
  ARM: Orion: XOR: Add support for clk
  ARM: Orion: CESA: Add support for clk
  ...
2012-05-26 12:42:29 -07:00
Linus Torvalds be122abe4b SPI changes for v3.5 merge window
Bug fixes and new features for SPI device drivers.  Also move device
 tree support code out of drivers/of and into drivers/spi/spi.c where
 it makes more sense.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJPvpHaAAoJEEFnBt12D9kBXNEQAIb6B0qhGn3l6coV6mr7ONiH
 zoZTNXk8hbXXgnt/4WGuIyLco5viea75h25JxdJGrB0hphvVsjhBn9AU6iwYVp//
 57PfkT89ST8ZzkuKwrJt5UNM7udOA8kvLSvYOVTdoOFV270JMQVw7dmkxj7zNKmq
 zy+Jy+3uRGqVzuges/me+YUeFUtw+nOd0ruJcgSfk7wze3bHY84IK8TTG3z/8jfj
 iQEv4a4A6waVDVIk45rWC/0Q2y+r1Ti1G9qzyegH1aNkh3IncsbgYfTcj6pf8YKx
 cFIgqE69xH4nyL35szV33HiC2LUb3dtGRRZ5gOTs39p2G9f39/xT2DxvQtSnQEAh
 3veUVoll8LsyvHMiSBIPStNSJ9pnI67oCm3MQOpGrx/dQsDo/hcI177QPW3U8wI0
 eeJbYhxz0rWRB2KA3Rbh7FXYqM2HuLGQ7Dx3iW2LLzaLDIiVuksw0D/NxeMOqdxM
 Ev6y/IPPVjhdlZ/ElYvhzRu9CquczFag1iA8ehfyp6i+xr08VF/ua9yi1dRfpxH6
 JfCSbj6HIofLugCP2pqS4W1qkCb+pXGosU8GQp/rffcXceQthX5oOk1JujNKxmJr
 K84ipRZW5bF14mmNSotI8oAda2oCfiDjFfrmXbFFprRebdoVKVPO1yFMJVXppWaa
 1k39oqBUiw4ypcBwEPgD
 =/Ux1
 -----END PGP SIGNATURE-----

Merge tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6

Pull SPI changes from Grant Likely:
 "Bug fixes and new features for SPI device drivers.  Also move device
  tree support code out of drivers/of and into drivers/spi/spi.c where
  it makes more sense."

* tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6:
  spi: By default setup spi_masters with 1 chipselect and dynamics bus number
  SPI: PRIMA2: use the newest APIs of PINCTRL to fix compiling errors
  spi/spi-fsl-spi: reference correct pdata in fsl_spi_cs_control
  spi: refactor spi-coldfire-qspi to use SPI queue framework.
  spi/omap2-mcspi: convert to the pump message infrastructure
  spi/rspi: add dmaengine support
  spi/topcliff: use correct __devexit_p annotation
  spi: Dont call prepare/unprepare transfer if not populated
  spi/ep93xx: clean probe/remove routines
  spi/devicetree: Move devicetree support code into spi directory
  spi: use module_pci_driver
  spi/omap2-mcspi: Trivial optimisation
  spi: omap2-mcspi: add support for pm_runtime autosuspend
  spi/omap: Remove bus_num usage for instance index
  OMAP : SPI : use devm_* functions
  spi: omap2-mcspi: convert to module_platform_driver
  spi: omap2-mcspi: make it behave as a module
2012-05-24 13:56:24 -07:00
Grant Likely d8e328b3bd spi: Add "spi:" prefix to modalias attribute of spi devices
The modalias attribute of spi devices doesn't have the "spi:" prefix
that is used in the UEVENT and in spi device drivers.  This patch adds
the prefix so the modprobe can correctly match modules to devices.

Reported-by: David Daney <david.daney@cavium.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-05-20 20:14:48 -06:00
Grant Likely 1e8a52e18c spi: By default setup spi_masters with 1 chipselect and dynamics bus number
Trivial simplification.  Instead of requiring spi master drivers to
always set the bus number (even when a dynamic number is desired),
this patch modifies spi_alloc_master() to initialize num_chipselect to
1 (because there will always be at least one CS) and bus_num to -1 for
dynamic allocation.  This simplifies the code needed to be written for
drivers.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-05-19 23:42:08 -06:00