ARM: dts: iwg20d-q7-common: Fix touch controller probe failure (08d7a73f) · Commits · 戴 / test

As per the iWave RZ/G1M schematic, the signal LVDS_PPEN controls the supply voltage for the touch panel, LVDS receiver and RGB LCD panel. Add a regulator for these device nodes and remove the powerdown-gpios property from the lvds-receiver node as it results in a touch controller driver probe failure. Fixes: ("ARM: dts: iwg20d-q7-common: Add LCD support") Signed-off-by:

Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by:

Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://lore.kernel.org/r/20200924080535.3641-1-biju.das.jz@bp.renesas.com Signed-off-by:

Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm/boot/dts/iwg20d-q7-common.dtsi

+14 −1

Original line number	Diff line number	Diff line
		@@ -57,7 +57,7 @@

		lvds-receiver {
		compatible = "ti,ds90cf384a", "lvds-decoder";
		powerdown-gpios = <&gpio7 25 GPIO_ACTIVE_LOW>;
		power-supply = <&vcc_3v3_tft1>;

		ports {
		#address-cells = <1>;
		@@ -81,6 +81,7 @@
		panel {
		compatible = "edt,etm0700g0dh6";
		backlight = <&lcd_backlight>;
		power-supply = <&vcc_3v3_tft1>;

		port {
		panel_in: endpoint {
		@@ -113,6 +114,17 @@
		};
		};

		vcc_3v3_tft1: regulator-panel {
		compatible = "regulator-fixed";

		regulator-name = "vcc-3v3-tft1";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		enable-active-high;
		startup-delay-us = <500>;
		gpio = <&gpio7 25 GPIO_ACTIVE_HIGH>;
		};

		vcc_sdhi1: regulator-vcc-sdhi1 {
		compatible = "regulator-fixed";

		@@ -207,6 +219,7 @@
		reg = <0x38>;
		interrupt-parent = <&gpio2>;
		interrupts = <12 IRQ_TYPE_EDGE_FALLING>;
		vcc-supply = <&vcc_3v3_tft1>;
		};
		};

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