ARM: dts: add pin state information for DP HPD support to Exynos5250

Add pin state information for DP HPD support that requires
pin configuration support using pinctrl interface.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

2 files changed, 10 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
index d1650fb34c0a..e9cdee385092 100644
--- a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
+++ b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
@@ -553,6 +553,13 @@
                         samsung,pin-pud = <0>;
                         samaung,pin-drv = <0>;
                 };
+
+                dp_hpd: dp_hpd {
+                        samsung,pins = "gpx0-7";
+                        samsung,pin-function = <3>;
+                        samsung,pin-pud = <0>;
+                        samaung,pin-drv = <0>;
+                };
         };
 
         pinctrl@13400000 {
diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index 3e0c792e2767..d53ea34c4fa1 100644
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -224,6 +224,9 @@
                 samsung,color-depth = <1>;
                 samsung,link-rate = <0x0a>;
                 samsung,lane-count = <4>;
+
+                pinctrl-names = "default";
+                pinctrl-0 = <&dp_hpd>;
         };
 
         display-timings {