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| author | Olof Johansson <olof@lixom.net> | 2012-09-20 16:41:32 -0700 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2012-09-20 16:41:32 -0700 |
| commit | 827cbe71886bc82125212630a52c5fe94b284330 (patch) | |
| tree | a1f81706789fd8bbc5ace65e0bec4df7a603f272 /arch/arm/mach-exynos | |
| parent | 1ef3f756b069469621a47ded867e71c97e1b483f (diff) | |
| parent | 011527b45f8e3092e1f3192e5aea94187a6ca269 (diff) | |
| download | blackbird-op-linux-827cbe71886bc82125212630a52c5fe94b284330.tar.gz blackbird-op-linux-827cbe71886bc82125212630a52c5fe94b284330.zip | |
Merge branch 'next/pinctrl-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/drivers
From Kukjin Kim:
This branch is for supporting pinctrl for Samsung EXYNOS. Now this can
support EXYNOS4210 and other EXYNOS SoCs such as EXYNOS4X12 will be
supported next time.
* 'next/pinctrl-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: Enable pinctrl driver support for EXYNOS4 device tree enabled platform
ARM: dts: Add pinctrl node entries for SAMSUNG EXYNOS4210 SoC
ARM: EXYNOS: skip wakeup interrupt setup if pinctrl driver is used
gpio: exynos4: skip gpiolib registration if pinctrl driver is used
pinctrl: add exynos4210 specific extensions for samsung pinctrl driver
pinctrl: add samsung pinctrl and gpiolib driver
Diffstat (limited to 'arch/arm/mach-exynos')
| -rw-r--r-- | arch/arm/mach-exynos/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/mach-exynos/common.c | 26 |
2 files changed, 28 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig index b5b4c8c9db11..195b50eb1e57 100644 --- a/arch/arm/mach-exynos/Kconfig +++ b/arch/arm/mach-exynos/Kconfig @@ -405,6 +405,8 @@ config MACH_EXYNOS4_DT select USE_OF select ARM_AMBA select HAVE_SAMSUNG_KEYPAD if INPUT_KEYBOARD + select PINCTRL + select PINCTRL_EXYNOS4 help Machine support for Samsung Exynos4 machine with device tree enabled. Select this if a fdt blob is available for the Exynos4 SoC based board. diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c index 4eb39cdf75ea..715b690e5009 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/common.c @@ -980,6 +980,32 @@ static int __init exynos_init_irq_eint(void) { int irq; +#ifdef CONFIG_PINCTRL_SAMSUNG + /* + * The Samsung pinctrl driver provides an integrated gpio/pinmux/pinconf + * functionality along with support for external gpio and wakeup + * interrupts. If the samsung pinctrl driver is enabled and includes + * the wakeup interrupt support, then the setting up external wakeup + * interrupts here can be skipped. This check here is temporary to + * allow exynos4 platforms that do not use Samsung pinctrl driver to + * co-exist with platforms that do. When all of the Samsung Exynos4 + * platforms switch over to using the pinctrl driver, the wakeup + * interrupt support code here can be completely removed. + */ + struct device_node *pctrl_np, *wkup_np; + const char *pctrl_compat = "samsung,pinctrl-exynos4210"; + const char *wkup_compat = "samsung,exynos4210-wakeup-eint"; + + for_each_compatible_node(pctrl_np, NULL, pctrl_compat) { + if (of_device_is_available(pctrl_np)) { + wkup_np = of_find_compatible_node(pctrl_np, NULL, + wkup_compat); + if (wkup_np) + return -ENODEV; + } + } +#endif + if (soc_is_exynos5250()) exynos_eint_base = ioremap(EXYNOS5_PA_GPIO1, SZ_4K); else |
