* Support HDMI display data channel
I2C #2 is assigned for the HDMI DDC. It enables the EDID access.
* GPIO for HDMI hot plug detect
GPX3_7 is used. The HPD awareness is done when the GPIO is active high and
single ended.
* Enable HDMI block in Exynos5420
HDMI PLL consumes 1.0V LDO6 (PVDD_ANAIP_1V0) and HDMI oscillator requires
1.8V LDO7 (PVDD_ANAIP_1V8).
Cc: Kukjin Kim <kgene at kernel.org>
Cc: Krzysztof Kozlowski <k.kozlowski at samsung.com>
Cc: David Airlie <airlied at linux.ie>
Cc: Inki Dae <inki.dae at samsung.com>
Cc: Joonyoung Shim <jy0922.shim at samsung.com>
Cc: Seung-Woo Kim <sw0312.kim at samsung.com>
Cc: Kyungmin Park <kyungmin.park at samsung.com>
Cc: Rob Herring <robh+dt at kernel.org>
Cc: devicetree at vger.kernel.org
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-samsung-soc at vger.kernel.org
Cc: linux-kernel at vger.kernel.org
Cc: dri-devel at lists.freedesktop.org
Signed-off-by: Milo Kim <woogyom.kim at gmail.com>
---
arch/arm/boot/dts/exynos5420-arndale-octa.dts | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
index 39a3b81..df362a2 100644
--- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
+++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
@@ -70,6 +70,23 @@
status = "disabled";
};
+&i2c_2 {
+ samsung,i2c-slave-addr = <0x50>;
+ status = "okay";
+
+ hdmiddc at 50 {
+ compatible = "samsung,exynos4210-hdmiddc";
+ reg = <0x50>;
+ };
+};
+
+&hdmi {
+ hpd-gpios = <&gpx3 7 GPIO_OPEN_SOURCE>;
+ vdd_osc-supply = <&ldo7_reg>;
+ vdd_pll-supply = <&ldo6_reg>;
+ status = "okay";
+};
+
&hsi2c_4 {
status = "okay";
--
1.9.1
