From: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx> 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@xxxxxxxxxxxxx> [nfraprado: removed always-on, added vin-supply and enable delay] Signed-off-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx> --- 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@xxxxxxxxxx/ 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(+) diff --git a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi index 37a3e9de90ff..dd5b89b73190 100644 --- a/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi @@ -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>; -- 2.41.0
