arm64: dts: mediatek: cherry: Configure eDP and internal display

Add the required nodes to enable the DisplayPort interface, connected
to the Embedded DisplayPort port, where we have an internal display.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230816190427.2137768-1-nfraprado@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
index 37a3e9de90ff705a2cf8a0e1e25f0c185bcd059e..dd5b89b73190392cedeb7ecb7822fa9613c18b1d 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi
@@ -47,6 +47,19 @@
                reg = <0 0x40000000 0 0x80000000>;
        };
 
+       pp3300_disp_x: regulator-pp3300-disp-x {
+               compatible = "regulator-fixed";
+               regulator-name = "pp3300_disp_x";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               regulator-enable-ramp-delay = <2500>;
+               enable-active-high;
+               gpio = <&pio 55 GPIO_ACTIVE_HIGH>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&panel_fixed_pins>;
+               vin-supply = <&pp3300_z2>;
+       };
+
        /* system wide LDO 3.3V power rail */
        pp3300_z5: regulator-pp3300-ldo-z5 {
                compatible = "regulator-fixed";
@@ -217,6 +230,20 @@
                        reg = <1>;
                        edp_out: endpoint {
                                data-lanes = <0 1 2 3>;
+                               remote-endpoint = <&panel_in>;
+                       };
+               };
+       };
+
+       aux-bus {
+               panel {
+                       compatible = "edp-panel";
+                       power-supply = <&pp3300_disp_x>;
+                       backlight = <&backlight_lcd0>;
+                       port {
+                               panel_in: endpoint {
+                                       remote-endpoint = <&edp_out>;
+                               };
                        };
                };
        };
@@ -881,6 +908,12 @@
                };
        };
 
+       panel_fixed_pins: panel-pwr-default-pins {
+               pins-vreg-en {
+                       pinmux = <PINMUX_GPIO55__FUNC_GPIO55>;
+               };
+       };
+
        pio_default: pio-default-pins {
                pins-wifi-enable {
                        pinmux = <PINMUX_GPIO58__FUNC_GPIO58>;