[v3] arm64: dts: mediatek: cherry: Configure eDP and internal display
Commit Message
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Add the required nodes to enable the DisplayPort interface, connected
to the Embedded DisplayPort port, where we have an internal display.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
[nfraprado: removed always-on, added vin-supply and enable delay]
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
---
The MediaTek DRM changes needed for MT8195 have already been queued for
v6.6 [1], so this DT patch is the last missing piece needed to get
a working display on MT8195 Tomato.
[1] https://lore.kernel.org/all/20230813152726.14802-1-chunkuang.hu@kernel.org/
Changes in v3:
- Split from "MT8195 Acer Tomato - devicetrees Part 3" series
- Removed regulator-always-on as it's no longer needed
- Added missing vin-supply and regulator-enable-delay
.../boot/dts/mediatek/mt8195-cherry.dtsi | 33 +++++++++++++++++++
1 file changed, 33 insertions(+)
@@ -47,6 +47,19 @@ memory@40000000 {
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 @@ port@1 {
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 @@ pins-bus {
};
};
+ 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>;