linux-kernel - [PATCH 5/9] arm64: dts: imx8mq-librem5: Add LCD

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Date:   Tue, 12 Jan 2021 10:51:47 +0100
From:   Martin Kepplinger <martin.kepplinger@...i.sm>
To:     robh@...nel.org, shawnguo@...nel.org, festevam@...il.com
Cc:     kernel@...gutronix.de, linux-imx@....com, catalin.marinas@....com,
        will@...nel.org, krzk@...nel.org, kernel@...i.sm,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        Guido Günther <agx@...xcpu.org>,
        Martin Kepplinger <martin.kepplinger@...i.sm>
Subject: [PATCH 5/9] arm64: dts: imx8mq-librem5: Add LCD_1V8 regulator

From: Guido Günther <agx@...xcpu.org>

It's a supply for to touch and LCD.

Signed-off-by: Guido Günther <agx@...xcpu.org>
Signed-off-by: Martin Kepplinger <martin.kepplinger@...i.sm>
---
 arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
index d7d807cd72b3..f77b51d3c132 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
@@ -82,6 +82,20 @@
 		enable-active-high;
 	};
 
+	reg_lcd_1v8: regulator-lcd-1v8 {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_dsien>;
+		regulator-name = "LCD_1V8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		vin-supply = <&reg_vdd_1v8>;
+		gpio = <&gpio1 5 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		/* Otherwise i2c3 is not functional */
+		regulator-always-on;
+	};
+
 	reg_lcd_3v4: regulator-lcd-3v4 {
 		compatible = "regulator-fixed";
 		regulator-name = "LCD_3V4";
@@ -892,6 +906,7 @@
 		interrupts = <27 IRQ_TYPE_EDGE_FALLING>;
 		touchscreen-size-x = <720>;
 		touchscreen-size-y = <1440>;
+		vcc-supply = <&reg_lcd_1v8>;
 	};
 };
 
-- 
2.20.1