This patch adds support for the configuration of exynos5 hdmi-hpd gpio.
It sets the gpio fucntion to EINT which is required for recieving
external hpd interrupt in drm hdmi driver.
Signed-off-by: Rahul Sharma <rahul.sharma@xxxxxxxxxxx>
---
arch/arm/mach-exynos/mach-exynos5-dt.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index 003963c..9a6d569 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -11,6 +11,7 @@
#include <linux/of_platform.h>
#include <linux/serial_core.h>
+#include <linux/gpio.h>
#include <asm/mach/arch.h>
#include <asm/hardware/gic.h>
@@ -18,6 +19,7 @@
#include <plat/cpu.h>
#include <plat/regs-serial.h>
+#include <plat/gpio-cfg.h>
#include "common.h"
@@ -81,10 +83,17 @@ static void __init exynos5250_dt_map_io(void)
s3c24xx_init_clocks(24000000);
}
+static void smdk_hpd_setup(void)
+{
+ s3c_gpio_cfgpin(EXYNOS5_GPX3(7), S3C_GPIO_SFN(0xf));
+ s3c_gpio_setpull(EXYNOS5_GPX3(7), S3C_GPIO_PULL_DOWN);
+}
+
static void __init exynos5250_dt_machine_init(void)
{
of_platform_populate(NULL, of_default_bus_match_table,
exynos5250_auxdata_lookup, NULL);
+ smdk_hpd_setup();
}
static char const *exynos5250_dt_compat[] __initdata = {
--
1.7.0.4
--
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