arm64: dts: renesas: gray-hawk-single: Add DisplayPort support

Add support for the mini DP output on the Gray Hawk board.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20241206-rcar-gh-dsi-v3-10-d74c2166fa15@ideasonboard.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts b/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
index a455450d69875b9856d488cb64429d8413c40492..521d4ea94aa802b2c4158d6dece4fc74b4e2ae02 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
+++ b/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
@@ -59,6 +59,12 @@
                stdout-path = "serial0:921600n8";
        };
 
+       sn65dsi86_refclk: clk-x6 {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <38400000>;
+       };
+
        keys {
                compatible = "gpio-keys";
 
@@ -132,6 +138,27 @@
                #clock-cells = <0>;
        };
 
+       mini-dp-con {
+               compatible = "dp-connector";
+               label = "CN5";
+               type = "mini";
+
+               port {
+                       mini_dp_con_in: endpoint {
+                               remote-endpoint = <&sn65dsi86_out0>;
+                       };
+               };
+       };
+
+       reg_1p2v: regulator-1p2v {
+               compatible = "regulator-fixed";
+               regulator-name = "fixed-1.2V";
+               regulator-min-microvolt = <1200000>;
+               regulator-max-microvolt = <1200000>;
+               regulator-boot-on;
+               regulator-always-on;
+       };
+
        reg_1p8v: regulator-1p8v {
                compatible = "regulator-fixed";
                regulator-name = "fixed-1.8V";
@@ -205,6 +232,25 @@
        };
 };
 
+&dsi0 {
+       status = "okay";
+
+       ports {
+               port@1 {
+                       reg = <1>;
+
+                       dsi0_out: endpoint {
+                               remote-endpoint = <&sn65dsi86_in0>;
+                               data-lanes = <1 2 3 4>;
+                       };
+               };
+       };
+};
+
+&du {
+       status = "okay";
+};
+
 &extal_clk {
        clock-frequency = <16666666>;
 };
@@ -284,6 +330,55 @@
        };
 };
 
+&i2c1 {
+       pinctrl-0 = <&i2c1_pins>;
+       pinctrl-names = "default";
+
+       status = "okay";
+       clock-frequency = <400000>;
+
+       bridge@2c {
+               pinctrl-0 = <&irq0_pins>;
+               pinctrl-names = "default";
+
+               compatible = "ti,sn65dsi86";
+               reg = <0x2c>;
+
+               clocks = <&sn65dsi86_refclk>;
+               clock-names = "refclk";
+
+               interrupts-extended = <&intc_ex 0 IRQ_TYPE_LEVEL_HIGH>;
+
+               enable-gpios = <&gpio1 26 GPIO_ACTIVE_HIGH>;
+
+               vccio-supply = <&reg_1p8v>;
+               vpll-supply = <&reg_1p8v>;
+               vcca-supply = <&reg_1p2v>;
+               vcc-supply = <&reg_1p2v>;
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@0 {
+                               reg = <0>;
+
+                               sn65dsi86_in0: endpoint {
+                                       remote-endpoint = <&dsi0_out>;
+                               };
+                       };
+
+                       port@1 {
+                               reg = <1>;
+
+                               sn65dsi86_out0: endpoint {
+                                       remote-endpoint = <&mini_dp_con_in>;
+                               };
+                       };
+               };
+       };
+};
+
 &i2c3 {
        pinctrl-0 = <&i2c3_pins>;
        pinctrl-names = "default";
@@ -388,11 +483,21 @@
                function = "i2c0";
        };
 
+       i2c1_pins: i2c1 {
+               groups = "i2c1";
+               function = "i2c1";
+       };
+
        i2c3_pins: i2c3 {
                groups = "i2c3";
                function = "i2c3";
        };
 
+       irq0_pins: irq0_pins {
+               groups = "intc_ex_irq0_a";
+               function = "intc_ex";
+       };
+
        keys_pins: keys {
                pins = "GP_5_0", "GP_5_1", "GP_5_2";
                bias-pull-up;