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path: root/drivers/pinctrl/pinctrl-samsung.c
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2013-10-08pinctrl: remove redundant of_match_ptrSachin Kamat1-1/+1
The data structure of_match_ptr() protects is always compiled in. Hence of_match_ptr() is not needed. This is a squash commit of: pinctrl: at91: Remove redundant of_match_ptr pinctrl: exynos5440: Remove redundant of_match_ptr pinctrl: imx35: Remove redundant of_match_ptr pinctrl: imx51: Remove redundant of_match_ptr pinctrl: imx53: Remove redundant of_match_ptr pinctrl: imx6dl: Remove redundant of_match_ptr pinctrl: imx6q: Remove redundant of_match_ptr pinctrl: samsung: Remove redundant of_match_ptr pinctrl: vf610: Remove redundant of_match_ptr pinctrl: imx6sl: Remove redundant of_match_ptr pinctrl: plgpio: Remove redundant of_match_ptr Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28pinctrl: Add s5pv210 support to pinctrl-exynosMateusz Krawczuk1-0/+2
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: Pass all configs to driver on pin_config_set()Sherman Yin1-4/+13
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>
2013-08-23pinctrl: samsung: Parse pin groups before calling pinctrl_register()Tomasz Figa1-6/+4
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>
2013-07-03Merge tag 'pinctrl-for-v3.11-1' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control changes from Linus Walleij: - A large slew of improvements of the Genric pin configuration support, and deployment in four different platforms: Rockchip, Super-H PFC, ABx500 and TZ1090. Support BIAS_BUS_HOLD, get device tree parsing and debugfs support into shape. - We also have device tree support with generic naming conventions for the generic pin configuration. - Delete the unused and confusing direct pinconf API. Now state transitions is *the* way to control pins and multiplexing. - New drivers for Rockchip, TZ1090, and TZ1090 PDC. - Two pin control states related to power management are now handled in the device core: "sleep" and "idle", removing a lot of boilerplate code in drivers. We do not yet know if this is the final word for pin PM, but it already make things a lot easier to handle. - Handle sparse GPIO ranges passing a list of disparate pins, and utilize these in the new BayTrail (x86 Atom SoC) driver. - Make the sunxi (AllWinner) driver handle external interrupts. - Make it possible for pinctrl-single to handle the case where several pins are managed by a single register, and augment it to handle sleep modes. - Cleanups and improvements for the abx500 drivers. - Move Sirf pin control drivers to their own directory, support save/restore of context and add support for the SiRFatlas6 SoC. - PMU muxing for the Dove pinctrl driver. - Finalization and support for VF610 in the i.MX6 pinctrl driver. - Smoothen out various Exynos rough edges. - Generic cleanups of various kinds. * tag 'pinctrl-for-v3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (82 commits) pinctrl: vt8500: wmt: remove redundant dev_err call in wmt_pinctrl_probe() pinctrl: remove bindings for pinconf options needing more thought pinctrl: remove slew-rate parameter from tz1090 pinctrl: set unit for debounce time pinconfig to usec pinctrl: more clarifications for generic pull configs pinctrl: rip out the direct pinconf API pinctrl-tz1090-pdc: add TZ1090 PDC pinctrl driver pinctrl-tz1090: add TZ1090 pinctrl driver pinctrl: samsung: Staticize drvdata_list pinctrl: rockchip: Add missing irq_gc_unlock() call before return error pinctrl: abx500: rework error path pinctrl: abx500: suppress hardcoded value pinctrl: abx500: factorize code pinctrl: abx500: fix abx500_gpio_get() pinctrl: abx500: fix abx500_pin_config_set() pinctrl: abx500: Add device tree support sh-pfc: Guard DT parsing with #ifdef CONFIG_OF pinctrl: add Intel BayTrail GPIO/pinctrl support pinctrl: fix pinconf_ops::pin_config_dbg_parse_modify kerneldoc pinctrl: Staticize local symbols ... Conflicts: drivers/net/ethernet/ti/davinci_mdio.c drivers/pinctrl/Makefile
2013-07-02Merge tag 'late-for-linus' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC late changes from Arnd Bergmann: "These are changes that arrived a little late before the merge window or that have multiple dependencies on previous branches so they did not fit into one of the earlier ones. There are 10 branches merged here, a total of 39 non-merge commits. Contents are a mixed bag for the above reasons: * Two new SoC platforms: ST microelectronics stixxxx and the TI 'Nspire' graphing calculator. These should have been in the 'soc' branch but were a little late * Support for the Exynos 5420 variant in mach-exynos, which is based on the other exynos branches to avoid conflicts. * Various small changes for sh-mobile, ux500 and davinci * Common clk support for MSM" * tag 'late-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits) ARM: ux500: bail out on alien cpus ARM: davinci: da850: adopt to pinctrl-single change for configuring multiple pins serial: sh-sci: Initialise variables before access in sci_set_termios() ARM: stih41x: Add B2020 board support ARM: stih41x: Add B2000 board support ARM: sti: Add DEBUG_LL console support ARM: sti: Add STiH416 SOC support ARM: sti: Add STiH415 SOC support ARM: msm: Migrate to common clock framework ARM: msm: Make proc_comm clock control into a platform driver ARM: msm: Prepare clk_get() users in mach-msm for clock-pcom driver ARM: msm: Remove clock-7x30.h include file ARM: msm: Remove custom clk_set_{max,min}_rate() API ARM: msm: Remove custom clk_set_flags() API msm: iommu: Use clk_set_rate() instead of clk_set_min_rate() msm: iommu: Convert to clk_prepare/unprepare msm_sdcc: Convert to clk_prepare/unprepare usb: otg: msm: Convert to clk_prepare/unprepare msm_serial: Use devm_clk_get() and properly return errors msm_serial: Convert to clk_prepare/unprepare ...
2013-06-24pinctrl: samsung: Staticize drvdata_listSachin Kamat1-1/+1
'drvdata_list' is used only in this file. Make it static. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-19pinctrl: exynos: add exynos5420 SoC specific dataLeela Krishna Amudala1-0/+2
Add Samsung EXYNOS5420 SoC specific data to enable pinctrl support for all platforms based on EXYNOS5420. Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com> Reviewed-by: Doug Anderson <dianders@chromium.org> Acked-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Tested-by : Sunil Joshi <joshi@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-06-12Merge branch 'v3.11-next/driver-pinctrl' into v3.11-next/s3c24xx-driverKukjin Kim1-0/+10
2013-05-27pinctrl: samsung: Add support for SoC-specific suspend/resume callbacksTomasz Figa1-0/+6
SoC-specific driver might require additional save and restore of registers. This patch adds pair of SoC-specific callbacks per pinctrl device to account for this. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-27pinctrl: samsung: fix suspend/resume functionalityDoug Anderson1-0/+148
The GPIO states need to be restored after s2r and this is not currently supported in the pinctrl driver. This patch saves the gpio states before suspend and restores them after resume. Saving and restoring is done very early using syscore_ops and must happen before pins are released from their powerdown state. Patch originally from Prathyush K <prathyush.k@samsung.com> but rewritten by Doug Anderson <dianders@chromium.org>. Signed-off-by: Prathyush K <prathyush.k@samsung.com> Signed-off-by: Doug Anderson <dianders@chromium.org> Tested-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-21pinctrl: Add pinctrl-s3c24xx driverHeiko Stuebner1-0/+10
The s3c24xx pins follow a similar pattern as the other Samsung SoCs and can therefore reuse the already introduced infrastructure. The s3c24xx SoCs have one design oddity in that the first 4 external interrupts do not reside in the eint pending register but in the main interrupt controller instead. We solve this by forwarding the external interrupt from the main controller into the irq domain of the pin bank. The masking/acking of these interrupts is handled in the same way. Furthermore the S3C2412/2413 SoCs contain another oddity in that they keep the same 4 eints in the main interrupt controller and eintpend register and requiring ack operations to happen in both. This is solved by using different compatible properties for the wakeup eint node which set a property accordingly. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Tomasz Figa <t.figa@samsung.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>
2013-05-18drivers/pinctrl: don't check resource with devm_ioremap_resourceWolfram Sang1-5/+0
devm_ioremap_resource does sanity checks on the given resource. No need to duplicate this in the driver. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-05-04Merge tag 'drivers-for-linus' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver changes from Olof Johansson: "This is a rather large set of patches for device drivers that for one reason or another the subsystem maintainer preferred to get merged through the arm-soc tree. There are both new drivers as well as existing drivers that are getting converted from platform-specific code into standalone drivers using the appropriate subsystem specific interfaces. In particular, we can now have pinctrl, clk, clksource and irqchip drivers in one file per driver, without the need to call into platform specific interface, or to get called from platform specific code, as long as all information about the hardware is provided through a device tree. Most of the drivers we touch this time are for clocksource. Since now most of them are part of drivers/clocksource, I expect that we won't have to touch these again from arm-soc and can let the clocksource maintainers take care of these in the future. Another larger part of this series is specific to the exynos platform, which is seeing some significant effort in upstreaming and modernization of its device drivers this time around, which unfortunately is also the cause for the churn and a lot of the merge conflicts. There is one new subsystem that gets merged as part of this series: the reset controller interface, which is a very simple interface for taking devices on the SoC out of reset or back into reset. Patches to use this interface on i.MX follow later in this merge window, and we are going to have other platforms (at least tegra and sirf) get converted in 3.11. This will let us get rid of platform specific callbacks in a number of platform independent device drivers." * tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (256 commits) irqchip: s3c24xx: add missing __init annotations ARM: dts: Disable the RTC by default on exynos5 clk: exynos5250: Fix parent clock for sclk_mmc{0,1,2,3} ARM: exynos: restore mach/regs-clock.h for exynos5 clocksource: exynos_mct: fix build error on non-DT pinctrl: vt8500: wmt: Fix checking return value of pinctrl_register() irqchip: vt8500: Convert arch-vt8500 to new irqchip infrastructure reset: NULL deref on allocation failure reset: Add reset controller API dt: describe base reset signal binding ARM: EXYNOS: Add arm-pmu DT binding for exynos421x ARM: EXYNOS: Add arm-pmu DT binding for exynos5250 ARM: EXYNOS: Enable PMUs for exynos4 irqchip: exynos-combiner: Correct combined IRQs for exynos4 irqchip: exynos-combiner: Add set_irq_affinity function for combiner_irq ARM: EXYNOS: fix compilation error introduced due to common clock migration clk: exynos5250: Fix divider values for sclk_mmc{0,1,2,3} clk: exynos4: export clocks required for fimc-is clk: samsung: Fix compilation error clk: tegra: fix enum tegra114_clk to match binding ...
2013-04-09pinctrl: Add pinctrl-s3c64xx driverTomasz Figa1-0/+4
This patch adds pinctrl-s3c64xx driver which implements pin control interface for Samsung S3C64xx SoCs. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-09pinctrl: samsung: Handle banks with two configuration registersTomasz Figa1-0/+10
This patch adds support for banks that have more than one function configuration registers, e.g. some of the banks of S3C64xx SoCs. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-09pinctrl: samsung: Remove hardcoded register offsetsTomasz Figa1-28/+9
This patch replaces statically hardcoded register offsets of Exynos SoCs with an array of register offsets in samsung_pin_bank_type struct. Thanks to this change, support for SoCs with other set and order of registers can be added (e.g. S3C24xx and S3C64xx). Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-09pinctrl: samsung: Split pin bank description into two structuresTomasz Figa1-9/+15
This patch splits pin bank description into two structures, one describing bank type (currently only bitfield widths), which can be shared across multiple banks and second containing bank-specific parameters including a pointer to a bank type struct. It is a prerequisite for further patch removing the statically hardcoded register offsets, making it impossible to support SoCs with different set and order of pin control registers. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-09pinctrl: samsung: Include pinctrl-exynos driver data conditionallyTomasz Figa1-0/+2
Since pinctrl-samsung is a common part of the pin control support for several Samsung SoCs, it can be compiled without Exynos support enabled. This patch surrounds Exynos-specific driver data with ifdefs to include them only when support for Exynos is enabled. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> [Fixed up EXYNOS4->EXYNOS] Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-09pinctrl: samsung: Protect bank registers with a spinlockTomasz Figa1-0/+24
Certain pin control registers can be accessed from different contexts, i.e. pinctrl, gpio and irq functions. This makes the locking provided by pin control core insufficient. This patch adds necessary locking using a per bank spinlock as it was done in the old Samsung GPIO driver. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-07pinctrl: Declare operation structures as constLaurent Pinchart1-3/+3
The pinconf, pinctrl and pinmux operation structures hold function pointers that are never modified. Declare them as const. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-05pinctrl: exynos: add exynos5250 SoC specific dataThomas Abraham1-0/+2
Add Samsung Exynos5250 SoC specific data to enable pinctrl support for all platforms based on Exynos5250. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-02-21Merge tag 'fixes-non-critical' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull non-critical ARM SoC bug fixes from Arnd Bergmann: "Bug fixes that did not make it into v3.8, mostly because they were not considered important enough, and in some cases because bugs only show up in combination with other patches destined for 3.9. This includes a few larger patches for GPIO on the Marvell PXA platform and a lot of Samsung specific bug fixes, as well as a series from Arnd to fix older build warnings." * tag 'fixes-non-critical' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (54 commits) ARM: SPEAr13xx: Enable CONFIG_ARCH_HAS_CPUFREQ ARM: imx: MACH_MX31ADS_WM1133_EV1 needs REGULATOR_WM8350 scripts/sortextable: silence script output ARM: s3c: i2c: add platform_device forward declaration ARM: mvebu: allow selecting mvebu without Armada XP ARM: pick Versatile by default for !MMU ARM: integrator: fix build with INTEGRATOR_AP off ARM: integrator/versatile: fix NOMMU warnings ARM: sa1100: don't warn about mach/ide.h ARM: shmobile: fix defconfig warning on CONFIG_USB ARM: w90x900: fix legacy assembly syntax ARM: samsung: fix assembly syntax for new gas ARM: disable virt_to_bus/virt_to_bus almost everywhere ARM: dts: Correct pin configuration of SD 4 for exynos4x12-pinctrl ARM: SAMSUNG: Silence empty switch warning in fimc-core.h ARM: SAMSUNG: Silence empty switch warning in sdhci.h ARM: msm: proc_comm_boot_wait should not be __init arm: vt8500: Update MAINTAINERS entry for arch-vt8500 ARM: integrator: ensure ap_syscon_base is initialised when !CONFIG_MMU ARM: S5PV210: Fix early uart output in fifo mode ...
2013-02-21Merge tag 'driver-core-3.9-rc1' of ↵Linus Torvalds1-5/+3
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core patches from Greg Kroah-Hartman: "Here is the big driver core merge for 3.9-rc1 There are two major series here, both of which touch lots of drivers all over the kernel, and will cause you some merge conflicts: - add a new function called devm_ioremap_resource() to properly be able to check return values. - remove CONFIG_EXPERIMENTAL Other than those patches, there's not much here, some minor fixes and updates" Fix up trivial conflicts * tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits) base: memory: fix soft/hard_offline_page permissions drivercore: Fix ordering between deferred_probe and exiting initcalls backlight: fix class_find_device() arguments TTY: mark tty_get_device call with the proper const values driver-core: constify data for class_find_device() firmware: Ignore abort check when no user-helper is used firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER firmware: Make user-mode helper optional firmware: Refactoring for splitting user-mode helper code Driver core: treat unregistered bus_types as having no devices watchdog: Convert to devm_ioremap_resource() thermal: Convert to devm_ioremap_resource() spi: Convert to devm_ioremap_resource() power: Convert to devm_ioremap_resource() mtd: Convert to devm_ioremap_resource() mmc: Convert to devm_ioremap_resource() mfd: Convert to devm_ioremap_resource() media: Convert to devm_ioremap_resource() iommu: Convert to devm_ioremap_resource() drm: Convert to devm_ioremap_resource() ...
2013-02-10pinctrl: samsung: remove duplicated lineJingoo Han1-1/+0
This patch removes duplicated line of samsung_pinctrl_register(), because the number of pins is redundantly assigned twice. Reviewed-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-01-28ARM: dts: fix compatible value for exynos pinctrlKukjin Kim1-2/+2
Fix the incorrect compatible property value of pinctrl for EXYNOS4 SoCs. Cc: Thomas Abraham <thomas.ab@samsung.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-01-22pinctrl: Convert to devm_ioremap_resource()Thierry Reding1-5/+3
Convert all uses of devm_request_and_ioremap() to the newly introduced devm_ioremap_resource() which provides more consistent error handling. devm_ioremap_resource() provides its own error messages so all explicit error messages can be removed from the failure code paths. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Cc: Linus Walleij <linus.walleij@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-03Drivers: pinctrl: remove __dev* attributes.Greg Kroah-Hartman1-12/+14
CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Barry Song <baohua.song@csr.com> Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Cc: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-12-18pinctrl: exynos5440/samsung: Staticize pcfgsAxel Lin1-1/+1
I got below build error with random config if CONFIG_PINCTRL_SAMSUNG=y && CONFIG_PINCTRL_EXYNOS5440=y. Fix the build error by making pcfgs static. LD drivers/pinctrl/built-in.o drivers/pinctrl/pinctrl-exynos5440.o: In function `.LANCHOR0': pinctrl-exynos5440.c:(.data+0x54): multiple definition of `pcfgs' drivers/pinctrl/pinctrl-samsung.o:pinctrl-samsung.c:(.data+0x54): first defined here make[2]: *** [drivers/pinctrl/built-in.o] Error 1 make[1]: *** [drivers/pinctrl] Error 2 make: *** [drivers] Error 2 Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-11-24pinctrl: samsung: Do not initialise statics to 0Sachin Kamat1-1/+1
Static variables are initialised to 0 by GCC. Fixes the following checkpatch error: ERROR: do not initialise statics to 0 or NULL FILE: pinctrl/pinctrl-samsung.c:50: static unsigned int pin_base = 0; Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-11-19pinctrl: samsung: Update error check for unsigned variablesTushar Behera1-1/+1
Checking '< 0' for unsigned variables always returns false. For error codes, use IS_ERR_VALUE() instead. Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Tushar Behera <tushar.behera@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-11-19pinctrl: samsung: Add support for EXYNOS4X12Tomasz Figa1-0/+2
This patch extends the driver with any necessary SoC-specific definitions to support EXYNOS4X12 SoCs. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-11-19Merge remote-tracking branch 'pinctrl/samsung' into next/pinctrl-samsungKukjin Kim1-57/+146
2012-10-15pinctrl: samsung: Add GPIO to IRQ translationTomasz Figa1-0/+19
Some drivers require a way to translate GPIO pins to their IRQ numbers. This patch adds the .to_irq() gpiolib callback to pinctrl-samsung driver, which creates (if not present yet) and returns an IRQ mapping for given GPIO pin. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-15pinctrl: samsung: Use one GPIO chip per pin bankTomasz Figa1-44/+73
This patch modifies the pinctrl-samsung driver to register one GPIO chip per pin bank, instead of a single chip for all pin banks of the controller. It simplifies GPIO accesses a lot (constant time instead of looping through the list of banks to find the right one) and should have a good effect on performance of any bit-banging driver. In addition it allows to reference GPIO pins by a phandle to the bank node and a local pin offset inside of the bank (similar to previous gpiolib driver), which is more clear and readable than using indices relative to the whole pin controller. Example: device { /* ... */ gpios = <&gpk0 4 0>; /* ... */ }; Signed-off-by: Tomasz Figa <t.figa@samsung.com> Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-15pinctrl: exynos: Use one IRQ domain per pin bankTomasz Figa1-4/+0
Instead of registering one IRQ domain for all pin banks of a pin controller, this patch implements registration of per-bank domains. At a cost of a little memory overhead (~2.5KiB for all GPIO interrupts of Exynos4x12) it simplifies driver code and device tree sources, because GPIO interrupts can be now specified per banks. Example: device { /* ... */ interrupt-parent = <&gpa1>; interrupts = <3 0>; /* ... */ }; Signed-off-by: Tomasz Figa <t.figa@samsung.com> Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-15pinctrl: samsung: Hold pointer to driver data in bank structTomasz Figa1-8/+10
This patch is a preparation for converting the pinctrl-samsung driver to one GPIO chip and IRQ domain per bank. It allows one having only a pointer to particular bank struct to access driver data struct. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-15pinctrl: samsung: Match pin banks with their device nodesTomasz Figa1-0/+13
This patch is a preparation for converting the pinctrl-samsung driver to one GPIO chip and IRQ domain per bank. It binds banks defined by internal driver data with bank nodes in device tree. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-15pinctrl: samsung: Distinguish between pin group and bank nodesTomasz Figa1-1/+1
This patch modifies the loop iterating over all child nodes and parsing pin groups to check whether the node is really a pin group node by checking for existence of samsung,pins property. This is a prerequisite for further patches adding additional subnodes to the pinctrl node, required for per bank GPIO and interrupt specifiers. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-15pinctrl: samsung: Assing pin numbers dynamicallyTomasz Figa1-1/+21
This patch modifies the pinctrl-samsung driver to assign numbers to pins dynamically instead of static enumerations. Thanks to this change the amount of code requried to support a SoC can be greatly reduced and the code made more readable. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-15pinctrl: samsung: Do not pass gpio_chip to pin_to_reg_bankTomasz Figa1-9/+16
The pointer to gpio_chip passed to pin_to_reg_bank utility function is used only to retrieve a pointer to samsung_pinctrl_drv_data structure. This patch modifies the function and its users to pass a pointer to samsung_pinctrl_drv_data directly. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-15pinctrl: samsung: Detect and handle unsupported configuration typesTomasz Figa1-0/+3
This patch modifies the pinctrl-samsung driver to detect when width of a bit field is set to zero (which means that such configuraton type is not supported) and return an error instead of trying to modify an inexistent register. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Thomas Abraham <thomas.abraham@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-15pinctrl: samsung: use __devinit section for init codeArnd Bergmann1-5/+5
The samsung pinctrl driver has a probe function that is __devinit and that calls a lot of other functions that are marked __init, which kbuild complains about. Marking everything __devinit means that the code does not discarded when CONFIG_HOTPLUG is set, which is a little more wasteful, but also more consistent Without this patch, building exynos_defconfig results in: WARNING: drivers/pinctrl/built-in.o(.devinit.text+0x124): Section mismatch in reference from the function samsung_pinctrl_probe() to the function .init.text:samsung_gpiolib_register() The function __devinit samsung_pinctrl_probe() references a function __init samsung_gpiolib_register(). If samsung_gpiolib_register is only used by samsung_pinctrl_probe then annotate samsung_gpiolib_register with a matching annotation. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Thomas Abraham <thomas.abraham@linaro.org> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Stephen Warren <swarren@nvidia.com> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-09-21pinctrl: samsung: Uninline samsung_pinctrl_get_soc_dataTomasz Figa1-1/+1
Although the function is used only a single time, it is not performance critical and it is pretty heavy, so let the compiler decide whether to inline it instead. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-09-07pinctrl: add samsung pinctrl and gpiolib driverThomas Abraham1-0/+888
Add a new device tree enabled pinctrl and gpiolib driver for Samsung SoC's. This driver provides a common and extensible framework for all Samsung SoC's to interface with the pinctrl and gpiolib subsystems. This driver supports only device tree based instantiation and hence can be used only on those Samsung platforms that have device tree enabled. This driver is split into two parts: the pinctrl interface and the gpiolib interface. The pinctrl interface registers pinctrl devices with the pinctrl subsystem and gpiolib interface registers gpio chips with the gpiolib subsystem. The information about the pins, pin groups, pin functions and gpio chips, which are SoC specific, are parsed from device tree node. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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