[PATCH v2 3/8] arm64: dts: qcom: sm8150-hdk: enable HDMI output

[Dmitry Baryshkov]

Add DSI outputs and link them to the onboard Lontium LT9611 DSI-to-HDMI
bridge, enabling HDMI output on this board. While adding the display
resources, also drop the headless ("amd,imageon") compat string from the
GPU node, since the board now has output.

Signed-off-by: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
---
 arch/arm64/boot/dts/qcom/sm8150-hdk.dts | 128 +++++++++++++++++++++++-
 1 file changed, 123 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8150-hdk.dts 
b/arch/arm64/boot/dts/qcom/sm8150-hdk.dts
index bb161b536da4..6a036f9ba1c9 100644
--- a/arch/arm64/boot/dts/qcom/sm8150-hdk.dts
+++ b/arch/arm64/boot/dts/qcom/sm8150-hdk.dts
@@ -54,6 +54,17 @@ key-vol-up {
                        gpios = <&pm8150_gpios 6 GPIO_ACTIVE_LOW>;
                };
        };
+
+       hdmi-out {
+               compatible = "hdmi-connector";
+               type = "a";
+
+               port {
+                       hdmi_con: endpoint {
+                               remote-endpoint = <&lt9611_out>;
+                       };
+               };
+       };
 };
 
 &apps_rsc {
@@ -359,12 +370,112 @@ &gmu {
        status = "okay";
 };
 
+&gpi_dma1 {
+       status = "okay";
+};
+
 &gpu {
-       /*
-        * NOTE: "amd,imageon" makes Adreno start in headless mode, remove it
-        * after display support is added on this board.
-        */
-       compatible = "qcom,adreno-640.1", "qcom,adreno", "amd,imageon";
+       status = "okay";
+};
+
+&i2c9 {
+       status = "okay";
+       clock-frequency = <400000>;
+
+       lt9611_codec: hdmi-bridge@3b {
+               compatible = "lontium,lt9611";
+               reg = <0x3b>;
+               #sound-dai-cells = <1>;
+
+               interrupts-extended = <&tlmm 9 IRQ_TYPE_EDGE_FALLING>;
+
+               reset-gpios = <&tlmm 7 GPIO_ACTIVE_HIGH>;
+
+               vdd-supply = <&vreg_s4a_1p8>;
+               vcc-supply = <&vreg_bob>;
+
+               pinctrl-names = "default";
+               pinctrl-0 = <&lt9611_irq_pin>;
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@0 {
+                               reg = <0>;
+
+                               lt9611_a: endpoint {
+                                       remote-endpoint = <&mdss_dsi0_out>;
+                               };
+                       };
+
+                       port@1 {
+                               reg = <1>;
+
+                               lt9611_b: endpoint {
+                                       remote-endpoint = <&mdss_dsi1_out>;
+                               };
+                       };
+
+                       port@2 {
+                               reg = <2>;
+
+                               lt9611_out: endpoint {
+                                       remote-endpoint = <&hdmi_con>;
+                               };
+                       };
+               };
+       };
+};
+
+&mdss {
+       status = "okay";
+};
+
+&mdss_dsi0 {
+       status = "okay";
+       vdda-supply = <&vreg_l3c_1p2>;
+
+       qcom,dual-dsi-mode;
+       qcom,master-dsi;
+
+       ports {
+               port@1 {
+                       endpoint {
+                               remote-endpoint = <&lt9611_a>;
+                               data-lanes = <0 1 2 3>;
+                       };
+               };
+       };
+};
+
+&mdss_dsi0_phy {
+       status = "okay";
+       vdds-supply = <&vreg_l5a_0p875>;
+};
+
+&mdss_dsi1 {
+       vdda-supply = <&vreg_l3c_1p2>;
+
+       qcom,dual-dsi-mode;
+
+       /* DSI1 is slave, so use DSI0 clocks */
+       assigned-clock-parents = <&mdss_dsi0_phy 0>, <&mdss_dsi0_phy 1>;
+
+       status = "okay";
+
+       ports {
+               port@1 {
+                       endpoint {
+                               remote-endpoint = <&lt9611_b>;
+                               data-lanes = <0 1 2 3>;
+                       };
+               };
+       };
+};
+
+&mdss_dsi1_phy {
+       vdds-supply = <&vreg_l5a_0p875>;
        status = "okay";
 };
 
@@ -402,6 +513,13 @@ &remoteproc_slpi {
 
 &tlmm {
        gpio-reserved-ranges = <0 4>, <126 4>;
+
+       lt9611_irq_pin: lt9611-irq-state {
+               pins = "gpio9";
+               function = "gpio";
+               bias-disable;
+       };
+
 };
 
 &uart2 {
-- 
2.39.2