Commit ab6f24b4 authored Jun 11, 2021 by Douglas Anderson

arm64: dts: qcom: sc7180-trogdor: Move panel under the bridge chip



Putting the panel under the bridge chip (under the aux-bus node)
allows the panel driver to get access to the DP AUX bus, enabling all
sorts of fabulous new features.

While we're at this, get rid of a level of hierarchy for the panel
node. It doesn't need "ports / port" and can just have a "port" child.

For Linux, this patch has a hard requirement on the patches adding DP
AUX bus support to the ti-sn65dsi86 bridge chip driver. See the patch
("drm/bridge: ti-sn65dsi86: Add support for the DP AUX bus").

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210611101711.v10.11.Ibdb7735fb1844561b902252215a69526a14f9abd@changeid

parent 4c1b3d94

arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi

+15 −15

Original line number	Diff line number	Diff line
		@@ -260,21 +260,6 @@
		#sound-dai-cells = <0>;
		};

		panel: panel {
		/* Compatible will be filled in per-board */
		power-supply = <&pp3300_dx_edp>;
		backlight = <&backlight>;
		hpd-gpios = <&sn65dsi86_bridge 2 GPIO_ACTIVE_HIGH>;

		ports {
		port {
		panel_in_edp: endpoint {
		remote-endpoint = <&sn65dsi86_out>;
		};
		};
		};
		};

		pwmleds {
		compatible = "pwm-leds";
		keyboard_backlight: keyboard-backlight {
		@@ -674,6 +659,21 @@ edp_brij_i2c: &i2c2 {
		};
		};
		};

		aux-bus {
		panel: panel {
		/* Compatible will be filled in per-board */
		power-supply = <&pp3300_dx_edp>;
		backlight = <&backlight>;
		hpd-gpios = <&sn65dsi86_bridge 2 GPIO_ACTIVE_HIGH>;

		port {
		panel_in_edp: endpoint {
		remote-endpoint = <&sn65dsi86_out>;
		};
		};
		};
		};
		};
		};