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Date: Thu, 23 Aug 2012 16:45:25 +0530 From: Thomas Abraham <thomas.abraham@...aro.org> To: linux-kernel@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org Cc: linux-arm-kernel@...ts.infradead.org, linux-samsung-soc@...r.kernel.org, linus.walleij@...aro.org, grant.likely@...retlab.ca, rob.herring@...xeda.com, kgene.kim@...sung.com, dong.aisheng@...aro.org, swarren@...dotorg.org, patches@...aro.org Subject: [PATCH v3 0/4] pinctrl: add support for samsung pinctrl driver Changes since v2: - Fixes as suggested by Linus Walleij <linus.walleij@...aro.org> Changes since v1: - Added support for external gpio and wakeup interrupts for Exynos4. This patch series adds a common pinctrl driver for all Samsung platforms and enables the pinctrl driver support for Exynos4210 based device tree enabled platforms. The scope of this driver is limited to only device tree enabled platforms. The intention of this driver is to replace the existing gpiolib driver and provide pinctrl subsystem interface to configure the pins/mux instead of existing platform callbacks. Note that, the Samsung pinctrl driver is usable only on device tree enabled Samsung platforms. Legacy platforms would still continue to use the older gpiolib driver and hence updates to device drivers to use the pinctrl api should ensure that support for legacy platforms is maintained. The first patch adds a new pinctrl driver for Samsung. It provides interfaces to the pinctrl and gpiolib subsystems. This driver provides a common framework for all Samsung SoC's to enable the pinctrl and gpiolib support. The driver accepts the information about pins, groups and functions from the device tree and the information about gpio banks is supplied using driver data. The second patch adds the driver data required to operate the pinctrl driver on Exynos4210 based platforms. It allows includes support for Exynos4210 specific external gpio and wakeup interrupts which are provides to the Samsung pinctrl driver as extensions. The third patch modifies the existing gpiolib driver to skip the gpio pin registrations if pinctrl driver support is found to be enabled. The fourth patch skips the external wakeup interrupt configuration process in the Exynos4 platform code if the external wakeup interrupt support is provided by the pin-control driver. Thomas Abraham (4): pinctrl: add samsung pinctrl and gpiolib driver pinctrl: add exynos4210 specific extensions for samsung pinctrl driver gpio: exynos4: skip gpiolib registration if pinctrl driver is used ARM: EXYNOS: skip wakeup interrupt setup if pinctrl driver is used .../bindings/pinctrl/samsung-pinctrl.txt | 196 +++++ arch/arm/mach-exynos/common.c | 26 + drivers/gpio/gpio-samsung.c | 21 + drivers/pinctrl/Kconfig | 9 + drivers/pinctrl/Makefile | 2 + drivers/pinctrl/pinctrl-exynos.c | 560 ++++++++++++ drivers/pinctrl/pinctrl-exynos.h | 217 +++++ drivers/pinctrl/pinctrl-samsung.c | 888 ++++++++++++++++++++ drivers/pinctrl/pinctrl-samsung.h | 239 ++++++ 9 files changed, 2158 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt create mode 100644 drivers/pinctrl/pinctrl-exynos.c create mode 100644 drivers/pinctrl/pinctrl-exynos.h create mode 100644 drivers/pinctrl/pinctrl-samsung.c create mode 100644 drivers/pinctrl/pinctrl-samsung.h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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