Move of_gpiochip_add outof spin_lock, since kzalloc inside
of_gpiochip_add -> of_gpiochip_add_pin_range -> gpiochip_add_pin_range -> kzalloc

WARNING: at kernel/lockdep.c:2740 lockdep_trace_alloc+0xf8/0xfc()
DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags))
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Local symbols accessed only in this file are made static.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

It seems there is no user of the wp_gpio driver in the kernel. Let's remove it.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

This patch makes sure blink hardware is disabled for selected GPIO. Blink
hardware is controled by GPO_BLINK register and is available for GPIOs from 0
to 31.
Signed-off-by: Vincent Donnefort <vdonnefort@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Commit 75096579 ("lib: devres: Introduce devm_ioremap_resource()")
introduced devm_ioremap_resource() and deprecated the use of
devm_request_and_ioremap().
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
CC: linux-gpio@vger.kernel.org
CC: Grant Likely <grant.likely@linaro.org>
CC: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Commit 75096579 ("lib: devres: Introduce devm_ioremap_resource()")
introduced devm_ioremap_resource() and deprecated the use of
devm_request_and_ioremap().
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
CC: linux-gpio@vger.kernel.org
CC: Linus Walleij <linus.walleij@linaro.org>
CC: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Testing on r8a7790 shows that INDT does not indicate the correct
pin state when reading a GPIO configured as output, so update
the gpio_rcar_get() function to handle this case.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

devm_kzalloc can return NULL. Check for it before dereferencing.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

The bug fix 352a2d5b "gpio/omap: ensure gpio context is initialised"
has caused a new warning for omap1_defconfig:

drivers/gpio/gpio-omap.c:1465:13: warning: 'omap_gpio_init_context' defined but not used [-Wunused-function]
 static void omap_gpio_init_context(struct gpio_bank *p) {}
             ^

The solution is to mark the stub function as 'static inline' so
it gets left out of the build when unused.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Commit 7bce696b (gpio: Make gpio-msm-v1 into a platform driver,
2013-03-04) was based on an older kernel where __devinit still
existed. Remove the erroneous __devinit marking.

Cc: David Brown <davidb@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

The free-function mentioned "interrupt" instead of "GPIO". While we are
here, use "GPIO" (capital letters) consistently.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Enable gpio driver for usage on Xilinx ARM zynq platform.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Describe gpio-xilinx binding.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Use BIT macro from linux/bitops.h.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

This driver can be used on Xilinx ARM Zynq platform
where in_be32/out_be32 functions are not implemented.
Use __raw_readl/__raw_writel functions which are
implemented on Microblaze and PowerPC.
For ARM readl/writel functions are used instead.

The correct way how to implement this is to detect
endians directly on IP. But for the gpio case
without interrupt connected(it means without
interrupt logic) there are just 2 registers
data and tristate where auto detection can't be done.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Supporting the second channel in the driver.
Offset is 0x8 and both channnels share the same
IRQ.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Simplification is done by using OF helper function
which increase readability of code and remove
(if (var) var = be32_to_cpup;) assignment.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Use devm_* functions to make cleanup paths simpler.
Signed-off-by: Nikolay Balandin <nbalandin@dev.rtsoft.ru>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Fix to return a negative error code in the irq descs alloc error
handling case instead of 0, as done elsewhere in this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Since the type of the reg_base member is void __iomem * we don't need to have
explicit casting in gpio_reg() and gpio_reg_2bit().

Update year in the copyright notice as well.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: David Cohen <david.a.cohen@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

There is no need to use hardcoded device name in the error messages, because
dev_err() prefixes the message with the device name anyway.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: David Cohen <david.a.cohen@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

This makes the error handling much more simpler than open-coding everything and
in addition makes the probe function smaller an tidier.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: David Cohen <david.a.cohen@intel.com>
[Rebased on the platform-data set to NULL removal patch]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

We better to use readl() function instead of bad looking direct access.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: David Cohen <david.a.cohen@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Otherwise we will end up with traceback from LOCKDEP:

INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.10.0-rc2-next-20130521-00028-g09aa9fc #487
 00000000 00000000 f6c55c54 c1541fe4 f6040bf8 f6c55c8c c1069ef1 c1726bc1
 c1726cc8 c1726c9e 00000000 f6c584e0 f6c58000 f6c55ce8 00000000 f6040bf8
 f6040bf8 00000046 f6c58000 f6c55d00 c106a18d 00000a2b 00000003 00004f02
Call Trace:
 [<c1541fe4>] dump_stack+0x49/0x77
 [<c1069ef1>] register_lock_class+0x58/0x260
 [<c106a18d>] __lock_acquire+0x94/0xcff
 [<c106adc8>] ? __lock_acquire+0xccf/0xcff
 [<c106b2ad>] lock_acquire+0xcc/0x10d
 [<c1269c7c>] ? lnw_irq_type+0x63/0xe9
 [<c1545da0>] _raw_spin_lock_irqsave+0x32/0x42
 [<c1269c7c>] ? lnw_irq_type+0x63/0xe9
 [<c1269c7c>] lnw_irq_type+0x63/0xe9
 [<c108f454>] __irq_set_trigger+0x98/0x123
 [<c1090225>] irq_set_irq_type+0x2f/0x51
 [<c1090225>] ? irq_set_irq_type+0x2f/0x51
 [<c1269d02>] ? lnw_irq_type+0xe9/0xe9
 [<c1269d34>] lnw_gpio_irq_map+0x32/0x3b
 [<c10914f2>] irq_domain_add_legacy+0xe2/0x107
 [<c1091b53>] irq_domain_add_simple+0x47/0x60
 [<c1269f6e>] lnw_gpio_probe+0x119/0x217
 [<c1271018>] pci_device_probe+0x5a/0x92
...
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: David Cohen <david.a.cohen@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

max7301 is controlled through SPI interface which means another driver.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Both stmpe_gpio_irq_map() and stmpe_gpio_irq_unmap() are not referenced
outside of this file, make them static.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d063
(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>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d063
(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>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d063
(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: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d063
(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>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d063
(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>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d063
(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: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d063
(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>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

do_smart_update_queue() is called when an operation (semop,
semctl(SETVAL), semctl(SETALL), ...) modified the array.  It must check
which of the sleeping tasks can proceed.

do_smart_update_queue() missed a few wakeups:
 - if a sleeping complex op was completed, then all per-semaphore queues
   must be scanned - not only those that were modified by *sops
 - if a sleeping simple op proceeded, then the global queue must be
   scanned again

And:
 - the test for "|sops == NULL) before scanning the global queue is not
   required: If the global queue is empty, then it doesn't need to be
   scanned - regardless of the reason for calling do_smart_update_queue()

The patch is not optimized, i.e.  even completing a wait-for-zero
operation causes a rescan.  This is done to keep the patch as simple as
possible.
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Acked-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull NFS client bugfixes from Trond Myklebust:

 - Stable fix to prevent an rpc_task wakeup race
 - Fix a NFSv4.1 session drain deadlock
 - Fix a NFSv4/v4.1 mount regression when not running rpc.gssd
 - Ensure auth_gss pipe detection works in namespaces
 - Fix SETCLIENTID fallback if rpcsec_gss is not available

* tag 'nfs-for-3.10-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFS: Fix SETCLIENTID fallback if GSS is not available
  SUNRPC: Prevent an rpc_task wakeup race
  NFSv4.1 Fix a pNFS session draining deadlock
  SUNRPC: Convert auth_gss pipe detection to work in namespaces
  SUNRPC: Faster detection if gssd is actually running
  SUNRPC: Fix a bug in gss_create_upcall

Pull amd64 edac fix from Borislav Petkov:
 "A sysfs file permissions correction"

* tag 'edac_fixes_for_3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  amd64_edac: Fix bogus sysfs file permissions

Pull parisc fixes from Helge Deller:
 "This time we made the kernel- and interruption stack allocation
  reentrant which fixed some strange kernel crashes (specifically
  protection ID traps).

  Furthemore this patchset fixes the interrupt stack in UP and SMP
  configurations by using native locking instructions.  And finally
  usage of floating point calculations on parisc were disabled in the
  MPILIB."

* 'parisc-for-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: fix irq stack on UP and SMP
  parisc/superio: Use module_pci_driver to register driver
  parisc: make interrupt and interruption stack allocation reentrant
  parisc: show number of FPE and unaligned access handler calls in /proc/interrupts
  parisc: add additional parisc git tree to MAINTAINERS file
  parisc: use PAGE_SHIFT instead of hardcoded value 12 in pacache.S
  parisc: add rp5470 entry to machine database
  MPILIB: disable usage of floating point registers on parisc

Pull xfs fixes from Ben Myers:
 "Here are fixes for corruption on 512 byte filesystems, a rounding
  error, a use-after-free, some flags to fix lockdep reports, and
  several fixes related to CRCs.  We have a somewhat larger post -rc1
  queue than usual due to fixes related to the CRC feature we merged for
  3.10:

   - Fix for corruption with FSX on 512 byte blocksize filesystems
   - Fix rounding error in xfs_free_file_space
   - Fix use-after-free with extent free intents
   - Add several missing KM_NOFS flags to fix lockdep reports
   - Several fixes for CRC related code"

* tag 'for-linus-v3.10-rc3' of git://oss.sgi.com/xfs/xfs:
  xfs: remote attribute lookups require the value length
  xfs: xfs_attr_shortform_allfit() does not handle attr3 format.
  xfs: xfs_da3_node_read_verify() doesn't handle XFS_ATTR3_LEAF_MAGIC
  xfs: fix missing KM_NOFS tags to keep lockdep happy
  xfs: Don't reference the EFI after it is freed
  xfs: fix rounding in xfs_free_file_space
  xfs: fix sub-page blocksize data integrity writes