* 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";