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Subject[PATCH v3 1/5] ARM: dts: exynos: Enable HDMI for Arndale Octa board
Date
* 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 VDD and PLL consume 1.0V LDO6 (PVDD_ANAIP_1V0) and HDMI oscillator
requires 1.8V LDO7 (PVDD_ANAIP_1V8).

* Support HDMI display data channel
I2C #2 is assigned for the HDMI DDC. It enables the EDID access.

Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
---
arch/arm/boot/dts/exynos5420-arndale-octa.dts | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
index 39a3b81..2fb5708 100644
--- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
+++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
@@ -70,6 +70,19 @@
status = "disabled";
};

+&hdmi {
+ hpd-gpios = <&gpx3 7 GPIO_OPEN_SOURCE>;
+ vdd_osc-supply = <&ldo7_reg>;
+ vdd_pll-supply = <&ldo6_reg>;
+ vdd-supply = <&ldo6_reg>;
+ ddc = <&i2c_2>;
+ status = "okay";
+};
+
+&i2c_2 {
+ status = "okay";
+};
+
&hsi2c_4 {
status = "okay";

--
1.9.1
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