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path: root/drivers/pinctrl
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2013-12-04pinctrl: dove: unset twsi option3 for gconfig as wellRoel Kluin
commit 6d0a4ed2b90a12e1403d3e7d9d8c2cc7fdc301b5 upstream. This fixes a typo which left twsi config3 option enabled. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-09-27pinctrl: palmas: do not abort pin configuration for BIAS_DEFAULTLaxman Dewangan
Recent movement of all configurations of pin in the single call of pin_config_set(), it is aborting configuration if BIAS_PULL_PIN_DEFAULT is selected as return of configuration. The original idea was to just avoid any update on register for pull up/down configuration if this option is selected. Fixing this by just bypassing any register update for BIAS_PULL_PIN_DEFAULT and continuing the remaining configuration. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-09-27pinctrl: Correct number of pins for s5pv210Mateusz Krawczuk
Values of pins in table s5pv210 bank are incorrect. This patch correct values. Signed-off-by: Mateusz Krawczuk <m.krawczuk@partner.samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-09-23pinctrl: remove an unnecessary castDan Carpenter
sizeof() is already size_t so there is no need to cast here. Generally, casting inside the min() macro instead of using min_t() is considered bad style. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-09-23pinctrl: fix pinconf_dbg_config_write return typeVincent Stehlé
Have pinconf_dbg_config_write() return a ssize_t. This fixes the following compilation warning: drivers/pinctrl/pinconf.c:617:2: warning: initialization from incompatible pointer type [enabled by default] drivers/pinctrl/pinconf.c:617:2: warning: (near initialization for ‘pinconf_dbg_pinconfig_fops.write’) [enabled by default] Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-09-19pinctrl: tegra114: Remove MODULE_ALIASThierry Reding
The driver cannot be built as a module, so having a MODULE_ALIAS() isn't useful. While at it, fix a small typo in the file header comment and make the module description string consistent with those for earlier Tegra SoCs. Signed-off-by: Thierry Reding <treding@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-09-05Merge tag 'PTR_RET-for-linus' of ↵Linus Torvalds
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
2013-08-30pinctrl: sunxi: Fix off-by-one for valid offset range checkingAxel Lin
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>
2013-08-30pinctrl: sunxi: drop lock on error pathLinus Walleij
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 6ad30ce046aefbdc3848232c665a728860d7bb68 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>
2013-08-29pinctrl: pinconf-generic: Remove ti prefix in dev_err messagesAxel Lin
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>
2013-08-29Merge tag 'v3.11-rc7' into develLinus Walleij
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
2013-08-29pinctrl: rockchip: Implement .request() and .free() callbacksAxel Lin
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>
2013-08-28pinctrl: at91: fix get_pullup/down function returnBoris BREZILLON
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>
2013-08-28pinctrl: sh-pfc: remove unnecessary platform_set_drvdata()Jingoo Han
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>
2013-08-28pinctrl: Add s5pv210 support to pinctrl-exynosMateusz Krawczuk
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>
2013-08-28pinctrl: utils: include export.h to avoid warningsLaxman Dewangan
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>
2013-08-28pinctrl: s3c24xx: off by one in s3c24xx_eint_init()Dan Carpenter
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>
2013-08-28pinctrl: mvebu: testing the wrong variableDan Carpenter
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>
2013-08-28pinctrl: abx500: fix bitwise AND testDan Carpenter
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>
2013-08-28pinctrl: mvebu: Convert to use devm_ioremap_resourceJisheng Zhang
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>
2013-08-28pinctrl: Pass all configs to driver on pin_config_set()Sherman Yin
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>
2013-08-28pinctrl: tz1090-pdc: Convert to devm_ioremap_resourceAxel Lin
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>
2013-08-28pinctrl: tz1090: Convert to devm_ioremap_resourceAxel Lin
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>
2013-08-28pinctrl: tegra: Convert to devm_ioremap_resourceAxel Lin
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>
2013-08-28pinctrl: rockchip: Simplify pin_to_bank equationAxel Lin
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>
2013-08-28pinctrl: spear: Convert to devm_ioremap_resourceAxel Lin
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>
2013-08-28pinctrl: rockchip: Remove of_match_ptr macro for DT only driverAxel Lin
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>
2013-08-28pinctrl: palmas: PINCTRL_PALMAS needs to select PINMUXAxel Lin
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>
2013-08-28pinctrl: core: Add proper mutex lock in pinctrl_request_gpioAxel Lin
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>
2013-08-23pinctrl: imx: Fix compilation with DEBUG enabledSascha Hauer
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>
2013-08-23pinctrl: rockchip: Simplify for loop iterationAxel Lin
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>
2013-08-23pinctrl: tegra: use pinctrl-utils APIs for mappingLaxman Dewangan
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>
2013-08-23pinctrl: utils : add support to pass config type in generic util APIsLaxman Dewangan
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>
2013-08-23pinctrl: samsung: Parse pin groups before calling pinctrl_register()Tomasz Figa
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>
2013-08-23pinctrl: palmas: Fix device name in Kconfig textMark Brown
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>
2013-08-23pinctrl: SPEAr310: Pass correct of_device_id table name to MODULE_DEVICE_TABLEAxel Lin
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>
2013-08-23pinctrl: sunxi: Add Allwinner A20 pins setMaxime Ripard
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>
2013-08-23pinctrl: sunxi: Add Allwinner A31 pins setMaxime Ripard
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>
2013-08-23pinctrl: sunxi: Fix inconsistent indentationMaxime Ripard
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>
2013-08-23pinctrl: core: Remove unnecessary test for desc->nameAxel Lin
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>
2013-08-23pinctrl: core: Hold pctldev->mutex mutex lock while traversing gpio_ranges listAxel Lin
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>
2013-08-23pinctrl: core: Hold pinctrldev_list_mutex mutex while traversing pinctrldev_listAxel Lin
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>
2013-08-23pinctrl: sirf: add lost atlas6 uart0-no-stream-control pingroupQipan Li
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>
2013-08-16pinctrl: imx: Use struct type for pinsSascha Hauer
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>
2013-08-15pinctrl: imx: do not fail when parsing a function failsSascha Hauer
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>
2013-08-15pinctrl: imx: do not fail when parsing a group failsSascha Hauer
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>
2013-08-15pinctrl: imx: Catch no fsl,pins propertySascha Hauer
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>
2013-08-15pinctrl: imx: make error messages more informativeSascha Hauer
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>
2013-08-15pinctrl: nomadik: simplify use of devm_ioremap_resourceJulia Lawall
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>
2013-08-15pinctrl: nomadik: shut up a warning for flagsLinus Walleij
The irq flags variable gets a warning like this after commit bf4dae5ce1b95a5932e43036edcf3f1b324758c6 "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>
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