arm64: dts: mediatek: mt8390-genio-common: Add Display on DSI0

Configure the DSI0 display pipeline and add regulator, pinctrl
and display node to enable the Startek KD070FHFID078 panel found
on the MediaTek Genio 510 and Genio 700 EVKs.

Link: https://lore.kernel.org/r/20250220110948.45596-3-angelogioacchino.delregno@collabora.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

diff --git a/arch/arm64/boot/dts/mediatek/mt8390-genio-common.dtsi b/arch/arm64/boot/dts/mediatek/mt8390-genio-common.dtsi
index 698054ed5d6d4f7b947db6ab5335d3b202bb84d9..127764c4d6be81767ef534a7cb228989f471b3bd 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt8390-genio-common.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8390-genio-common.dtsi
@@ -21,6 +21,7 @@
 
 / {
        aliases {
+               dsi0 = &disp_dsi0;
                ethernet0 = ð
                i2c0 = &i2c0;
                i2c1 = &i2c1;
@@ -34,6 +35,15 @@
                serial0 = &uart0;
        };
 
+       backlight_lcm1: backlight-lcm1 {
+               compatible = "pwm-backlight";
+               brightness-levels = <0 1023>;
+               default-brightness-level = <576>;
+               num-interpolated-steps = <1023>;
+               power-supply = <&reg_vsys>;
+               pwms = <&disp_pwm1 0 500000>;
+       };
+
        chosen {
                stdout-path = "serial0:921600n8";
        };
@@ -227,6 +237,28 @@
                regulator-max-microvolt = <5000000>;
                enable-active-high;
        };
+
+       lcm1_iovcc: regulator-vio18-lcm1 {
+               compatible = "regulator-fixed";
+               regulator-name = "vio18_lcm1";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               enable-active-high;
+               gpio = <&pio 111 GPIO_ACTIVE_HIGH>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&dsi0_vreg_en_pins>;
+               vin-supply = <&reg_vsys>;
+       };
+
+       lcm1_vddp: regulator-vsys-lcm1 {
+               compatible = "regulator-fixed";
+               regulator-name = "vsys_lcm1";
+               regulator-min-microvolt = <4200000>;
+               regulator-max-microvolt = <4200000>;
+               regulator-always-on;
+               regulator-boot-on;
+               vin-supply = <&reg_vsys>;
+       };
 };
 
 &adsp {
@@ -239,6 +271,67 @@
        status = "okay";
 };
 
+&disp_dsi0 {
+       #address-cells = <1>;
+       #size-cells = <0>;
+       status = "okay";
+
+       panel@0 {
+               compatible = "startek,kd070fhfid078", "himax,hx8279";
+               reg = <0>;
+               backlight = <&backlight_lcm1>;
+               enable-gpios = <&pio 45 GPIO_ACTIVE_HIGH>;
+               reset-gpios = <&pio 25 GPIO_ACTIVE_HIGH>;
+               iovcc-supply = <&lcm1_iovcc>;
+               vdd-supply = <&lcm1_vddp>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&panel_default_pins>;
+
+               port {
+                       dsi_panel_in: endpoint {
+                               remote-endpoint = <&dsi0_out>;
+                       };
+               };
+       };
+
+       ports {
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               port@0 {
+                       reg = <0>;
+                       dsi0_in: endpoint {
+                               remote-endpoint = <&dither0_out>;
+                       };
+               };
+
+               port@1 {
+                       reg = <1>;
+                       dsi0_out: endpoint {
+                               remote-endpoint = <&dsi_panel_in>;
+                       };
+               };
+       };
+};
+
+&disp_pwm1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&disp_pwm1_pins>;
+       status = "okay";
+};
+
+&dither0_in {
+       remote-endpoint = <&postmask0_out>;
+};
+
+&dither0_out {
+       remote-endpoint = <&dsi0_in>;
+};
+
+&gamma0_out {
+       remote-endpoint = <&postmask0_in>;
+};
+
 &gpu {
        mali-supply = <&mt6359_vproc2_buck_reg>;
        status = "okay";
@@ -390,6 +483,10 @@
        domain-supply = <&mt6359_vsram_others_ldo_reg>;
 };
 
+&mipi_tx_config0 {
+       status = "okay";
+};
+
 &mmc0 {
        status = "okay";
        pinctrl-names = "default", "state_uhs";
@@ -499,6 +596,10 @@
        mediatek,mic-type-1 = <3>; /* DCC */
 };
 
+&ovl0_in {
+       remote-endpoint = <&vdosys0_ep_main>;
+};
+
 &pcie {
        pinctrl-names = "default";
        pinctrl-0 = <&pcie_default_pins>;
@@ -537,6 +638,12 @@
                };
        };
 
+       disp_pwm1_pins: disp-pwm1-pins {
+               pins-pwm {
+                       pinmux = <PINMUX_GPIO30__FUNC_O_DISP_PWM1>;
+               };
+       };
+
        dptx_pins: dptx-pins {
                pins-cmd-dat {
                        pinmux = <PINMUX_GPIO46__FUNC_I0_DP_TX_HPD>;
@@ -857,20 +964,22 @@
                };
        };
 
-       panel_default_pins: panel-default-pins {
-               pins-dcdc {
-                       pinmux = <PINMUX_GPIO45__FUNC_B_GPIO45>;
-                       output-low;
-               };
-
-               pins-en {
+       dsi0_vreg_en_pins: dsi0-vreg-en-pins {
+               pins-pwr-en {
                        pinmux = <PINMUX_GPIO111__FUNC_B_GPIO111>;
                        output-low;
                };
+       };
 
+       panel_default_pins: panel-default-pins {
                pins-rst {
                        pinmux = <PINMUX_GPIO25__FUNC_B_GPIO25>;
-                       output-high;
+                       output-low;
+               };
+
+               pins-en {
+                       pinmux = <PINMUX_GPIO45__FUNC_B_GPIO45>;
+                       output-low;
                };
        };
 
@@ -1055,6 +1164,14 @@
        };
 };
 
+&postmask0_in {
+       remote-endpoint = <&gamma0_out>;
+};
+
+&postmask0_out {
+       remote-endpoint = <&dither0_in>;
+};
+
 &scp_cluster {
        status = "okay";
 };
@@ -1124,6 +1241,18 @@
        status = "okay";
 };
 
+&vdosys0 {
+       port {
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               vdosys0_ep_main: endpoint@0 {
+                       reg = <0>;
+                       remote-endpoint = <&ovl0_in>;
+               };
+       };
+};
+
 &u3phy0 {
        status = "okay";
 };