This patch adds hot plug detection (HPD) and power domain (PD) support for HDMI on Origen board. Signed-off-by: Sachin Kamat <sachin.kamat@xxxxxxxxxx> --- I have added the KConfig entry and header file required for enabling PD since the patch [1] is not yet applied on Kgene's tree [2]. [1] http://permalink.gmane.org/gmane.linux.kernel.samsung-soc/6763 [2] https://github.com/kgene/linux-samsung/tree/for-next --- arch/arm/mach-exynos4/Kconfig | 1 + arch/arm/mach-exynos4/mach-origen.c | 14 ++++++++++++++ 2 files changed, 15 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-exynos4/Kconfig b/arch/arm/mach-exynos4/Kconfig index d0491c2..a02c94f 100644 --- a/arch/arm/mach-exynos4/Kconfig +++ b/arch/arm/mach-exynos4/Kconfig @@ -243,6 +243,7 @@ config MACH_ORIGEN select S5P_DEV_I2C_HDMIPHY select S5P_DEV_TV select S5P_DEV_USB_EHCI + select EXYNOS4_DEV_PD select SAMSUNG_DEV_BACKLIGHT select SAMSUNG_DEV_PWM select EXYNOS4_SETUP_SDHCI diff --git a/arch/arm/mach-exynos4/mach-origen.c b/arch/arm/mach-exynos4/mach-origen.c index 421294b..36709ea 100644 --- a/arch/arm/mach-exynos4/mach-origen.c +++ b/arch/arm/mach-exynos4/mach-origen.c @@ -30,6 +30,7 @@ #include <plat/clock.h> #include <plat/gpio-cfg.h> #include <plat/backlight.h> +#include <plat/pd.h> #include <mach/map.h> @@ -168,6 +169,7 @@ static struct platform_device *origen_devices[] __initdata = { &s5p_device_i2c_hdmiphy, &s5p_device_mixer, &origen_device_gpiokeys, + &exynos4_device_pd[PD_TV], }; /* LCD Backlight data */ @@ -181,6 +183,14 @@ static struct platform_pwm_backlight_data origen_bl_data = { .pwm_period_ns = 1000, }; +static void s5p_tv_setup(void) +{ + /* Direct HPD to HDMI chip */ + gpio_request_one(EXYNOS4_GPX3(7), GPIOF_IN, "hpd-plug"); + s3c_gpio_cfgpin(EXYNOS4_GPX3(7), S3C_GPIO_SFN(0x3)); + s3c_gpio_setpull(EXYNOS4_GPX3(7), S3C_GPIO_PULL_NONE); +} + static void __init origen_map_io(void) { s5p_init_io(NULL, 0, S5P_VA_CHIPID); @@ -200,10 +210,14 @@ static void __init origen_machine_init(void) origen_ehci_init(); clk_xusbxti.rate = 24000000; + s5p_tv_setup(); s5p_i2c_hdmiphy_set_platdata(NULL); platform_add_devices(origen_devices, ARRAY_SIZE(origen_devices)); + s5p_device_hdmi.dev.parent = &exynos4_device_pd[PD_TV].dev; + s5p_device_mixer.dev.parent = &exynos4_device_pd[PD_TV].dev; + samsung_bl_set(&origen_bl_gpio_info, &origen_bl_data); } -- 1.7.4.1 -- 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
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