arm64: dts: apq8096-db820c: Add HDMI display support

The APQ8096 DB820c platform provides HDMI output. The MDSS block on
8x96 supports a direct HDMI out. Populate the MDSS, MDP and HDMI DT
nodes. Also, add the HDMI HPD and DDC pinctrl nodes with the bias
and driver strength specified for this platform.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Andy Gross <agross@kernel.org>

diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c-pins.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c-pins.dtsi
index 6a573875d45ace01ddf3f916234cd5487870230b..1c0d06f59d00cf06b3d5157054557ca0eb97b856 100644 (file)
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c-pins.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c-pins.dtsi
@@ -62,4 +62,56 @@ config {
                        bias-disable;
                };
        };
+
+       hdmi_hpd_active: hdmi_hpd_active {
+               mux {
+                       pins = "gpio34";
+                       function = "hdmi_hot";
+               };
+
+               config {
+                       pins = "gpio34";
+                       bias-pull-down;
+                       drive-strength = <16>;
+               };
+       };
+
+       hdmi_hpd_suspend: hdmi_hpd_suspend {
+               mux {
+                       pins = "gpio34";
+                       function = "hdmi_hot";
+               };
+
+               config {
+                       pins = "gpio34";
+                       bias-pull-down;
+                       drive-strength = <2>;
+               };
+       };
+
+       hdmi_ddc_active: hdmi_ddc_active {
+               mux {
+                       pins = "gpio32", "gpio33";
+                       function = "hdmi_ddc";
+               };
+
+               config {
+                       pins = "gpio32", "gpio33";
+                       drive-strength = <2>;
+                       bias-pull-up;
+               };
+       };
+
+       hdmi_ddc_suspend: hdmi_ddc_suspend {
+               mux {
+                       pins = "gpio32", "gpio33";
+                       function = "hdmi_ddc";
+               };
+
+               config {
+                       pins = "gpio32", "gpio33";
+                       drive-strength = <2>;
+                       bias-pull-down;
+               };
+       };
 };

diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
index 6d50449fbcdf0cc8cca4d44fcda6d09f38e376f2..1e78f0b47c89414144363638593499242bb924ae 100644 (file)
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
@@ -452,6 +452,33 @@ pcie@610000 {
                                perst-gpio = <&msmgpio 114 GPIO_ACTIVE_LOW>;
                        };
                };
+
+               mdss@900000 {
+                       status = "okay";
+
+                       mdp@901000 {
+                               status = "okay";
+                       };
+
+                       hdmi-phy@9a0600 {
+                               status = "okay";
+
+                               vddio-supply = <&pm8994_l12>;
+                               vcca-supply = <&pm8994_l28>;
+                               #phy-cells = <0>;
+                       };
+
+                       hdmi-tx@9a0000 {
+                               status = "okay";
+
+                               pinctrl-names = "default", "sleep";
+                               pinctrl-0 = <&hdmi_hpd_active &hdmi_ddc_active>;
+                               pinctrl-1 = <&hdmi_hpd_suspend &hdmi_ddc_suspend>;
+
+                               core-vdda-supply = <&pm8994_l12>;
+                               core-vcc-supply = <&pm8994_s4>;
+                       };
+               };
        };