Hi Rahul,
On 14.05.2014 04:45, Rahul Sharma wrote:
> From: Rahul Sharma <[email protected]>
>
> Enable support for HDMI for exynos5250 based Snow board.
>
> Signed-off-by: Rahul Sharma <[email protected]>
> ---
> arch/arm/boot/dts/exynos5250-cros-common.dtsi | 6 +++++-
> arch/arm/boot/dts/exynos5250-pinctrl.dtsi | 7 +++++++
> arch/arm/boot/dts/exynos5250-snow.dts | 7 +++++++
> 3 files changed, 19 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/exynos5250-cros-common.dtsi
> b/arch/arm/boot/dts/exynos5250-cros-common.dtsi
> index 2c1560d..89ac90f 100644
> --- a/arch/arm/boot/dts/exynos5250-cros-common.dtsi
> +++ b/arch/arm/boot/dts/exynos5250-cros-common.dtsi
> @@ -240,7 +240,7 @@
> samsung,i2c-sda-delay = <100>;
> samsung,i2c-max-bus-freq = <378000>;
>
> - hdmiphy@38 {
> + hdmiphy: hdmiphy@38 {
> compatible = "samsung,exynos4212-hdmiphy";
> reg = <0x38>;
> };
> @@ -304,6 +304,10 @@
>
> hdmi {
> hpd-gpio = <&gpx3 7 0>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&hdmi_hpd_irq>;
> + phy = <&hdmiphy>;
> + ddc = <&i2c_2>;
> };
>
> gpio-keys {
> diff --git a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
> b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
> index 9a49e68..da3ae66 100644
> --- a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
> +++ b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
> @@ -560,6 +560,13 @@
> samsung,pin-pud = <0>;
> samsung,pin-drv = <0>;
> };
> +
> + hdmi_hpd_irq: hdmi-hpd-irq {
> + samsung,pins = "gpx3-7";
> + samsung,pin-function = <0>;
> + samsung,pin-pud = <1>;
> + samsung,pin-drv = <0>;
> + };
Based on the fact that this is just being configured as input, I don't
think this is a generic special function, but rather a board-specific
GPIO, which should be defined in dts of respective board.
> };
>
> pinctrl@13400000 {
> diff --git a/arch/arm/boot/dts/exynos5250-snow.dts
> b/arch/arm/boot/dts/exynos5250-snow.dts
> index 1ce1088..696850a 100644
> --- a/arch/arm/boot/dts/exynos5250-snow.dts
> +++ b/arch/arm/boot/dts/exynos5250-snow.dts
> @@ -206,4 +206,11 @@
> clock-frequency = <24000000>;
> };
> };
> +
> + hdmi {
> + hdmi-en-supply = <&tps65090_fet7>;
> + vdd-supply = <&ldo8_reg>;
> + vdd_osc-supply = <&ldo10_reg>;
> + vdd_pll-supply = <&ldo8_reg>;
Hmm, those regulators don't seem to be listed in
Documentation/devicetree/bindings/video/exynos_hdmi.txt, at least in
today's linux-next. The driver seems to use them, though.
This isn't a problem with this patch, but if you're working on this,
could you also fix the documentation in separate patch?
Best regards,
Tomasz
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