Hi Milo,
On 08/24/2016 04:25 AM, Milo Kim wrote:
> * 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";
Please use ddc property in hdmi node, instead of this legacy binding.
See exynos4210-universal_c210.dts or exynos4412-odroid-common.dtsi for
reference.
Regards
Andrzej
> +};
> +
> &hsi2c_4 {
> status = "okay";
>
