Commit Graph

999 Commits

Author SHA1 Message Date
Linus Torvalds 27703bb4a6 PTR_RET() is a weird name, and led to some confusing usage. We ended
up with PTR_ERR_OR_ZERO(), and replacing or fixing all the usages.
 
 This has been sitting in linux-next for a whole cycle.
 
 Thanks,
 Rusty.
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Merge tag 'PTR_RET-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

Pull PTR_RET() removal patches from Rusty Russell:
 "PTR_RET() is a weird name, and led to some confusing usage.  We ended
  up with PTR_ERR_OR_ZERO(), and replacing or fixing all the usages.

  This has been sitting in linux-next for a whole cycle"

[ There are still some PTR_RET users scattered about, with some of them
  possibly being new, but most of them existing in Rusty's tree too.  We
  have that

      #define PTR_RET(p) PTR_ERR_OR_ZERO(p)

  thing in <linux/err.h>, so they continue to work for now  - Linus ]

* tag 'PTR_RET-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  GFS2: Replace PTR_RET with PTR_ERR_OR_ZERO
  Btrfs: volume: Replace PTR_RET with PTR_ERR_OR_ZERO
  drm/cma: Replace PTR_RET with PTR_ERR_OR_ZERO
  sh_veu: Replace PTR_RET with PTR_ERR_OR_ZERO
  dma-buf: Replace PTR_RET with PTR_ERR_OR_ZERO
  drivers/rtc: Replace PTR_RET with PTR_ERR_OR_ZERO
  mm/oom_kill: remove weird use of ERR_PTR()/PTR_ERR().
  staging/zcache: don't use PTR_RET().
  remoteproc: don't use PTR_RET().
  pinctrl: don't use PTR_RET().
  acpi: Replace weird use of PTR_RET.
  s390: Replace weird use of PTR_RET.
  PTR_RET is now PTR_ERR_OR_ZERO(): Replace most.
  PTR_RET is now PTR_ERR_OR_ZERO
2013-09-04 17:31:11 -07:00
Axel Lin c9e3b2d8f7 pinctrl: sunxi: Fix off-by-one for valid offset range checking
The valid offset range should be 0 ... chip->ngpio - 1.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-30 10:37:36 +02:00
Linus Walleij 07b7eb9279 pinctrl: sunxi: drop lock on error path
I forgot to drop the lock for the return inside the loop
protected by the spinlock in the pin config routine when
merging in -rc7 in commit 6ad30ce046

Reported-by: Sherman Yin <syin@broadcom.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-30 09:57:27 +02:00
Axel Lin acf564a8f3 pinctrl: pinconf-generic: Remove ti prefix in dev_err messages
It does not make sense to show ti prefix in pinconf_generic_dt_subnode_to_map()
dev_err messages.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-29 09:48:13 +02:00
Linus Walleij 6ad30ce046 Linux 3.11-rc7
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Merge tag 'v3.11-rc7' into devel

Merged in this to avoid conflicts with the big locking fixes
from upstream.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Conflicts:
	drivers/pinctrl/pinctrl-sunxi.c
2013-08-29 09:46:30 +02:00
Axel Lin 0351c28795 pinctrl: rockchip: Implement .request() and .free() callbacks
Implement .request() and .free() callbacks on the GPIO chips to
inform pinctrl when a GPIO is requested or freed.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-29 09:11:00 +02:00
Boris BREZILLON 05d3534a32 pinctrl: at91: fix get_pullup/down function return
In PIO_PUSR and PIO_PPDSR register if a given bit is set 1 this means the
pullup/down for this pin (pin is represented as a bit position) is
disabled.

Cc: stable <stable@vger.kernel.org> # 3.8+
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 21:21:42 +02:00
Jingoo Han db8ed17429 pinctrl: sh-pfc: remove unnecessary platform_set_drvdata()
The driver core clears the driver data to NULL after device_release
or on probe failure. 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: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 21:14:37 +02:00
Mateusz Krawczuk 608a26a7bc pinctrl: Add s5pv210 support to pinctrl-exynos
This patch implements pinctrl support and adds device tree bindings
for s5pv210.

Signed-off-by: Mateusz Krawczuk <m.krawczuk@partner.samsung.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 15:56:06 +02:00
Laxman Dewangan 2f62eb9d64 pinctrl: utils: include export.h to avoid warnings
Include "linux/export.h" to avoid following warnings during compilation:

/***
pinctrl/pinctrl-utils.c:53:1: warning: data definition has no type or storage class [enabled by default]
pinctrl/pinctrl-utils.c:53:1: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' [-Wimplicit-int]
pinctrl/pinctrl-utils.c:53:1: warning: parameter names (without types) in function declaration [enabled by default]
pinctrl/pinctrl-utils.c:70:1: warning: data definition has no type or storage class [enabled by default]
pinctrl/pinctrl-utils.c:70:1: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' [-Wimplicit-int]
pinctrl/pinctrl-utils.c:70:1: warning: parameter names (without types) in function declaration [enabled by default]
pinctrl/pinctrl-utils.c:98:1: warning: data definition has no type or storage class [enabled by default]
pinctrl/pinctrl-utils.c:98:1: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' [-Wimplicit-int]
pinctrl/pinctrl-utils.c:98:1: warning: parameter names (without types) in function declaration [enabled by default]
pinctrl/pinctrl-utils.c:122:1: warning: data definition has no type or storage class [enabled by default]
pinctrl/pinctrl-utils.c:122:1: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' [-Wimplicit-int]
pinctrl/pinctrl-utils.c:122:1: warning: parameter names (without types) in function declaration [enabled by default]
pinctrl/pinctrl-utils.c:135:1: warning: data definition has no type or storage class [enabled by default]
pinctrl/pinctrl-utils.c:135:1: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' [-Wimplicit-int]
pinctrl/pinctrl-utils.c:135:1: warning: parameter names (without types) in function declaration [enabled by default]
**/

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 15:50:33 +02:00
Dan Carpenter 774e2d981f pinctrl: s3c24xx: off by one in s3c24xx_eint_init()
If "irq == NUM_EINT" then it writes one space beyond the end of the
eint_data->domains[] array.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 14:44:25 +02:00
Dan Carpenter ddb6c45fb7 pinctrl: mvebu: testing the wrong variable
We wanted to test "*map" here instead of "map".

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 14:35:44 +02:00
Dan Carpenter 6da33dbdcb pinctrl: abx500: fix bitwise AND test
The intent here was to test if the bit was set or not but there is a
logical vs bitwise AND typo so it is true if any bits are set.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 14:32:06 +02:00
Jisheng Zhang a8a364bd27 pinctrl: mvebu: Convert to use devm_ioremap_resource
The resource mapped by of_iomap() isn't unmapped in error path. This
patch fix the resource leakage by using devm_ioremap_resource() instead
of of_iomap().

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Reviewed-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 14:17:44 +02:00
Sherman Yin 03b054e969 pinctrl: Pass all configs to driver on pin_config_set()
When setting pin configuration in the pinctrl framework, pin_config_set() or
pin_config_group_set() is called in a loop to set one configuration at a time
for the specified pin or group.

This patch 1) removes the loop and 2) changes the API to pass the whole pin
config array to the driver.  It is now up to the driver to loop through the
configs.  This allows the driver to potentially combine configs and reduce the
number of writes to pin config registers.

All c files changed have been build-tested to verify the change compiles and
that the corresponding .o is successfully generated.

Signed-off-by: Sherman Yin <syin@broadcom.com>
Reviewed-by: Christian Daudt <csd@broadcom.com>
Reviewed-by: Matt Porter <matt.porter@linaro.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 13:34:41 +02:00
Axel Lin f5ba9c52bf pinctrl: tz1090-pdc: Convert to devm_ioremap_resource
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 13:34:19 +02:00
Axel Lin 6fc6c61c99 pinctrl: tz1090: Convert to devm_ioremap_resource
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 13:34:19 +02:00
Axel Lin 394a8ff8bb pinctrl: tegra: Convert to devm_ioremap_resource
Using the new devm_ioremap_resource() we can greatly simplify resource handling.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 13:34:18 +02:00
Axel Lin 51578b9b1f pinctrl: rockchip: Simplify pin_to_bank equation
If (b->pin_base + b->nr_pins - 1) < pin is true, pin >= b->pin_base is always
true because b->nr_pins is never less than 0.
Thus this patch simplify the equation.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 13:34:18 +02:00
Axel Lin dff5a99c2a pinctrl: spear: Convert to devm_ioremap_resource
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 13:34:18 +02:00
Axel Lin 0be9e70d58 pinctrl: rockchip: Remove of_match_ptr macro for DT only driver
This is a DT only driver and rockchip_pinctrl_dt_match is always compiled in.
Thus remove of_match_ptr macro.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 13:16:22 +02:00
Axel Lin 63ca8db757 pinctrl: palmas: PINCTRL_PALMAS needs to select PINMUX
Fix below build error if !PINMUX.

  CC      drivers/pinctrl/pinctrl-palmas.o
drivers/pinctrl/pinctrl-palmas.c:741:21: error: variable 'palmas_pinmux_ops' has initializer but incomplete type
drivers/pinctrl/pinctrl-palmas.c:742:2: error: unknown field 'get_functions_count' specified in initializer
drivers/pinctrl/pinctrl-palmas.c:742:2: warning: excess elements in struct initializer [enabled by default]
drivers/pinctrl/pinctrl-palmas.c:742:2: warning: (near initialization for 'palmas_pinmux_ops') [enabled by default]
drivers/pinctrl/pinctrl-palmas.c:743:2: error: unknown field 'get_function_name' specified in initializer
drivers/pinctrl/pinctrl-palmas.c:743:2: warning: excess elements in struct initializer [enabled by default]
drivers/pinctrl/pinctrl-palmas.c:743:2: warning: (near initialization for 'palmas_pinmux_ops') [enabled by default]
drivers/pinctrl/pinctrl-palmas.c:744:2: error: unknown field 'get_function_groups' specified in initializer
drivers/pinctrl/pinctrl-palmas.c:744:2: warning: excess elements in struct initializer [enabled by default]
drivers/pinctrl/pinctrl-palmas.c:744:2: warning: (near initialization for 'palmas_pinmux_ops') [enabled by default]
drivers/pinctrl/pinctrl-palmas.c:745:2: error: unknown field 'enable' specified in initializer
drivers/pinctrl/pinctrl-palmas.c:745:2: warning: excess elements in struct initializer [enabled by default]
drivers/pinctrl/pinctrl-palmas.c:745:2: warning: (near initialization for 'palmas_pinmux_ops') [enabled by default]
make[2]: *** [drivers/pinctrl/pinctrl-palmas.o] Error 1
make[1]: *** [drivers/pinctrl] Error 2
make: *** [drivers] Error 2

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 13:14:37 +02:00
Axel Lin 9b77ace409 pinctrl: core: Add proper mutex lock in pinctrl_request_gpio
This one is missed in commit 42fed7ba "pinctrl: move subsystem mutex to
pinctrl_dev struct".

I think this fixes the race between pin_free() and pin_request() calls.
It protects accessing the members of pctldev->desc.
(e.g. update desc->mux_usecount, desc->gpio_owner, desc->mux_owner, etc)
Current code grabs pctldev->mutex before calling pinmux_free_gpio(),
but did not grab the mutex while calling pinmux_request_gpio().

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 13:13:05 +02:00
Sascha Hauer 406044695f pinctrl: imx: Fix compilation with DEBUG enabled
This became broken with converting the pinmux arrays into struct
types. While at it replace the preprocessor magic with a simple
dev_dbg.

Reported-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-23 20:52:46 +02:00
Axel Lin 1cb9539587 pinctrl: rockchip: Simplify for loop iteration
Just return once a match found makes the code simpler and shorter.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-23 08:56:32 +02:00
Laxman Dewangan 1ede12d491 pinctrl: tegra: use pinctrl-utils APIs for mapping
Pin control utility functions provides the function for creating
map lists.

In place of implementing APIs locally in Tegra pin control driver
for creating map lists, use the utility functions. This reduces
the code size and avoid duplication.

Changes from V1:
- Rebased change on top of V1.
- Use pinctrl_utils_dt_free_map

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-23 08:56:32 +02:00
Laxman Dewangan 3287c24088 pinctrl: utils : add support to pass config type in generic util APIs
Add support to pass the config type like GROUP or PIN when using
the utils or generic pin configuration APIs. This will make the
APIs more generic.

Added additional inline APIs such that it can be use directly as
callback for the pinctrl_ops.

Changes from V1:
- Remove separate implementation for pins and group for
  pinctrl_utils_dt_free_map and improve this function
  to support both i.e. PINS and GROUPs.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-23 08:56:32 +02:00
Tomasz Figa 529301c19c pinctrl: samsung: Parse pin groups before calling pinctrl_register()
Calling pinctrl_register() means that the driver is fully initialized
and might accept pinmux/pinconf requests, so pin groups must be parsed
before.

This patch fixes this problem by moving device tree parsing before call
to pinctrl_register(). In addition, this fixes support for hogs on
pin controllers handled by pinctrl-samsung driver.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-23 08:56:31 +02:00
Mark Brown 736658c5eb pinctrl: palmas: Fix device name in Kconfig text
The device family is called Palmas so there should be a 's' on the end of
the name.

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-23 08:56:31 +02:00
Axel Lin 13ceb77aef pinctrl: SPEAr310: Pass correct of_device_id table name to MODULE_DEVICE_TABLE
The symbol SPEAr310_pinctrl_of_match does not exist at all. Fix it.
We didn't hit the compile error because this driver can only be built-in now.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-23 08:56:30 +02:00
Maxime Ripard 23ac6df451 pinctrl: sunxi: Add Allwinner A20 pins set
The Allwinner A20 is pin-compatible with the older A10, so the two pin
set are quite similar. However, since the A20 has new features, we can't
just use the A10 pin set as is, and we need to define our own for the
A20.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-23 08:56:30 +02:00
Maxime Ripard de0c9029d5 pinctrl: sunxi: Add Allwinner A31 pins set
The Allwinner A31 SoC uses the same IP than the one found in the
A10/A13, with only different pins. Add the pins and the associated
functions found in the A31.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-23 08:56:29 +02:00
Maxime Ripard 30e7166323 pinctrl: sunxi: Fix inconsistent indentation
Some pin functions in the array were not indented like the other
functions in this array. Fix this.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-23 08:56:29 +02:00
Axel Lin 6c325f874c pinctrl: core: Remove unnecessary test for desc->name
The implementation in pinctrl_register_one_pin() ensures pindesc->name is always
not NULL before insert the pindesc to radix tree.
If the desc return from pin_desc_get is not NULL, desc->name is always not NULL.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-23 08:56:29 +02:00
Axel Lin 5ffbe2e613 pinctrl: core: Hold pctldev->mutex mutex lock while traversing gpio_ranges list
Hold pctldev->mutex mutex_lock when traverse the list.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-23 08:56:28 +02:00
Axel Lin f005902108 pinctrl: core: Hold pinctrldev_list_mutex mutex while traversing pinctrldev_list
This one is missed in commit 44d5f7bb "pinctrl: sink pinctrldev_list_mutex".

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-23 08:56:27 +02:00
Qipan Li 031b8ce01b pinctrl: sirf: add lost atlas6 uart0-no-stream-control pingroup
the old codes defined uart0_nostreamctrl_pins, but missed pingroup
and padmux definition for it. this patch fixes it.

Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-23 08:56:27 +02:00
Sascha Hauer 8f903f8a34 pinctrl: imx: Use struct type for pins
The i.MX pinctrl driver uses 5 different arrays for storing the
informations for pins. This requires five allocations. Instead,
use a struct type which is more cache friendly, readable and
requires less allocations. One array of integers is still needed
since the pinctrl framework forces us to maintain it.
This also adds checks whether the allocations are succesful which
were missing.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-16 14:43:56 +02:00
Sascha Hauer 7ea46e0f9d pinctrl: imx: do not fail when parsing a function fails
When parsing a function fails this is no reason to make the whole
driver fail. Just continue with the next function.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-15 22:13:21 +02:00
Sascha Hauer 5e13762cf8 pinctrl: imx: do not fail when parsing a group fails
The i.MX pinctrl driver completely bails out when it detects an error
in the pinctrl nodes. This usually means that whatever error a
devicetree has the user is left blind because even the console cannot
be initialized without working pinmux.

Instead of bailing out completely, just continue probing. This makes
the pinctrl driver work, only the erroneous groups will fail later
during pin request time.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-15 22:13:17 +02:00
Sascha Hauer 1bf1fea95f pinctrl: imx: Catch no fsl,pins property
Instead of crashing the kernel print an error message when
the fsl,pins property is missing.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-15 22:13:11 +02:00
Sascha Hauer 01312513c4 pinctrl: imx: make error messages more informative
When printing error messages about errors in the devicetree also print
the offending node to give the use a hint what might be wrong.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-15 22:12:59 +02:00
Julia Lawall 690ebabb0b pinctrl: nomadik: simplify use of devm_ioremap_resource
Remove unneeded error handling on the result of a call to
platform_get_resource when the value is passed to devm_ioremap_resource.

Move the call to platform_get_resource adjacent to the call to
devm_ioremap_resource to make the connection between them more clear.

A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression pdev,res,n,e,e1;
expression ret != 0;
identifier l;
@@

- res = platform_get_resource(pdev, IORESOURCE_MEM, n);
  ... when != res
- if (res == NULL) { ... \(goto l;\|return ret;\) }
  ... when != res
+ res = platform_get_resource(pdev, IORESOURCE_MEM, n);
  e = devm_ioremap_resource(e1, res);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-15 22:12:47 +02:00
Linus Walleij f84b417131 pinctrl: nomadik: shut up a warning for flags
The irq flags variable gets a warning like this after
commit bf4dae5ce1
"pinctrl: nomadik: delete ancient pin control API":

In file included from include/linux/seqlock.h:29:0,
                 from include/linux/time.h:5,
                 from include/linux/stat.h:18,
                 from include/linux/module.h:10,
                 from
drivers/pinctrl/pinctrl-nomadik.c:14:
drivers/pinctrl/pinctrl-nomadik.c: In function 'nmk_pmx_enable':
include/linux/spinlock.h:348:122: warning:
'flags' may be used uninitialized in this function
[-Wmaybe-uninitialized]
  raw_spin_unlock_irqrestore(&lock->rlock, flags);
                                                   ^
drivers/pinctrl/pinctrl-nomadik.c:1515:16: note:
'flags' was declared here
  unsigned long flags;

The function is question was never changed but it appears
the semantic checker could previously determine that the code
path that would use the flags was going to either use it or
not, but now it can't for some reason. Just fix it up.

Reported-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-15 22:12:46 +02:00
John Crispin 0fabc83543 pinctrl/lantiq: add missing gphy led setup
We found out how to set the gphy led pinmuxing.

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-14 22:49:24 +02:00
Thomas Langer 89ebefe389 pinctrl/lantiq: add missing pin definition to falcon pinctrl driver
The pps pin definition is missing in the current code.

Signed-off-by: Thomas Langer <thomas.langer@lantiq.com>
Acked-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-14 22:49:24 +02:00
Laurent Pinchart 62783b714f sh-pfc: r8a7790: Add DU pin groups and functions
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-14 22:49:22 +02:00
Laurent Pinchart f06812095e sh-pfc: r8a7790: Rename DU1_DOTCLKIN to DU_DOTCLKIN1
Name the DU clock input 1 consistently with clock inputs 0 and 2.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-14 22:49:22 +02:00
Linus Walleij 1c8e794432 pinctrl: improve warning messages
Print out the affected group name on activation of pin mux
settings, and warn if you cannot free a pin that should have
been part of a certain setting.

ChangeLog v1->v2:
- Also print the pin name in the error messages.

Cc: Sonic Zhang <sonic.zhang@analog.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-14 22:49:14 +02:00
Laxman Dewangan 0a8d3e2412 pinctrl: palmas: add pincontrol driver
TI Palmas series Power Management IC have multiple pins which can be
configured for different functionality. This pins can be configured
for different function. Also their properties like pull up/down,
open drain enable/disable are configurable.

Add support for pincontrol driver Palmas series device like TPS65913,
TPS80036. The driver supports to be register from DT only.

Changes from V1:
- Add generic property for pins and functions in pinconf-generic.
- Add APIs to map the DT and subnode.
- Move common utils APIs to the pinctrl-utils from this file.
- Update the binding document accordingly.
Changes from V2:
- Add ack by Lee.
- Correct the binding docs.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-14 21:00:42 +02:00