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. At this point, the pinmux and pinconfig functionality is fully supported. Additional work is required to add gpio interrupts and wakeup interrupts support but that should not stop device drivers from switching over to use the pinctrl subsystem to configure the io-pads. 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. The third patch modifies the existing gpiolib driver to skip the gpio pin registrations if pinctrl driver support is found to be enabled. Thomas Abraham (3): pinctrl: add samsung pinctrl and gpiolib driver pinctrl: add exynos4210 specific driver data for samsung pinctrl driver gpio: exynos4: skip gpiolib registration if pinctrl driver is used .../bindings/pinctrl/samsung-pinctrl.txt | 111 +++ drivers/gpio/gpio-samsung.c | 21 + drivers/pinctrl/Kconfig | 11 + drivers/pinctrl/Makefile | 2 + drivers/pinctrl/pinctrl-exynos4.c | 211 +++++ drivers/pinctrl/pinctrl-samsung.c | 881 ++++++++++++++++++++ drivers/pinctrl/pinctrl-samsung.h | 170 ++++ 7 files changed, 1407 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt create mode 100644 drivers/pinctrl/pinctrl-exynos4.c 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-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
