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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-01 18:46:13 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-01 18:46:13 -0700 |
commit | 8f446a7a069e0af0639385f67c78ee2279bca04c (patch) | |
tree | 580cf495616b36ca0af0826afa87c430cdc1e7cb /drivers/gpio/gpio-samsung.c | |
parent | 84be4ae2c038e2b03d650cbf2a7cfd9e8d6e9e51 (diff) | |
parent | 04ef037c926ddb31088c976538e29eada4fd1490 (diff) | |
download | linux-8f446a7a069e0af0639385f67c78ee2279bca04c.tar.gz linux-8f446a7a069e0af0639385f67c78ee2279bca04c.tar.bz2 linux-8f446a7a069e0af0639385f67c78ee2279bca04c.zip |
Merge tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM soc driver specific changes from Olof Johansson:
- A long-coming conversion of various platforms to a common LED
infrastructure
- AT91 is moved over to use the newer MCI driver for MMC
- Pincontrol conversions for samsung platforms
- DT bindings for gscaler on samsung
- i2c driver fixes for tegra, acked by i2c maintainer
Fix up conflicts as per Olof.
* tag 'drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
drivers: bus: omap_l3: use resources instead of hardcoded irqs
pinctrl: exynos: Fix wakeup IRQ domain registration check
pinctrl: samsung: Uninline samsung_pinctrl_get_soc_data
pinctrl: exynos: Correct the detection of wakeup-eint node
pinctrl: exynos: Mark exynos_irq_demux_eint as inline
pinctrl: exynos: Handle only unmasked wakeup interrupts
pinctrl: exynos: Fix typos in gpio/wkup _irq_mask
pinctrl: exynos: Set pin function to EINT in irq_set_type of GPIO EINTa
drivers: bus: Move the OMAP interconnect driver to drivers/bus/
i2c: tegra: dynamically control fast clk
i2c: tegra: I2_M_NOSTART functionality not supported in Tegra20
ARM: tegra: clock: remove unused clock entry for i2c
ARM: tegra: clock: add connection name in i2c clock entry
i2c: tegra: pass proper name for getting clock
ARM: tegra: clock: add i2c fast clock entry in clock table
ARM: EXYNOS: Adds G-Scaler device from Device Tree
ARM: EXYNOS: Add clock support for G-Scaler
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
...
Diffstat (limited to 'drivers/gpio/gpio-samsung.c')
-rw-r--r-- | drivers/gpio/gpio-samsung.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c index 8af4b06e80f7..a006f0db15af 100644 --- a/drivers/gpio/gpio-samsung.c +++ b/drivers/gpio/gpio-samsung.c @@ -2797,6 +2797,27 @@ static __init void exynos4_gpiolib_init(void) int group = 0; void __iomem *gpx_base; +#ifdef CONFIG_PINCTRL_SAMSUNG + /* + * This gpio driver includes support for device tree support and + * there are platforms using it. In order to maintain + * compatibility with those platforms, and to allow non-dt + * Exynos4210 platforms to use this gpiolib support, a check + * is added to find out if there is a active pin-controller + * driver support available. If it is available, this gpiolib + * support is ignored and the gpiolib support available in + * pin-controller driver is used. This is a temporary check and + * will go away when all of the Exynos4210 platforms have + * switched to using device tree and the pin-ctrl driver. + */ + struct device_node *pctrl_np; + const char *pctrl_compat = "samsung,pinctrl-exynos4210"; + pctrl_np = of_find_compatible_node(NULL, NULL, pctrl_compat); + if (pctrl_np) + if (of_device_is_available(pctrl_np)) + return; +#endif + /* gpio part1 */ gpio_base1 = ioremap(EXYNOS4_PA_GPIO1, SZ_4K); if (gpio_base1 == NULL) { |