linux-kernel - [PATCH 1/2] arm64: dts: rockchip: fix vcc3v3_lcd{0,1}

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Date:   Sat, 29 Jan 2022 17:24:39 +0100
From:   Michael Riesch <michael.riesch@...fvision.net>
To:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Rob Herring <robh+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>,
        Michael Riesch <michael.riesch@...fvision.net>,
        Liang Chen <cl@...k-chips.com>, sha@...gutronix.de
Subject: [PATCH 1/2] arm64: dts: rockchip: fix vcc3v3_lcd{0,1}_n regulators in rk3568-evb1-10

The voltages VCC3V3_LCD{0,1} can be enabled with the pins GPIO0_C7 and
GPIO0_C5, respectively. This patch modifies the device tree in order to
reflect this.

Signed-off-by: Michael Riesch <michael.riesch@...fvision.net>
---
 .../boot/dts/rockchip/rk3568-evb1-v10.dts     | 25 +++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3568-evb1-v10.dts b/arch/arm64/boot/dts/rockchip/rk3568-evb1-v10.dts
index 184e2aa2416a..197aaf7ee348 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-evb1-v10.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-evb1-v10.dts
@@ -56,7 +56,13 @@ vcc5v0_sys: vcc5v0-sys {
 	vcc3v3_lcd0_n: vcc3v3-lcd0-n {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc3v3_lcd0_n";
-		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		enable-active-high;
+		gpio = <&gpio0 RK_PC7 GPIO_ACTIVE_HIGH>;
+		vin-supply = <&vcc3v3_sys>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&vcc3v3_lcd0_n_en>;
 
 		regulator-state-mem {
 			regulator-off-in-suspend;
@@ -66,7 +72,13 @@ regulator-state-mem {
 	vcc3v3_lcd1_n: vcc3v3-lcd1-n {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc3v3_lcd1_n";
-		regulator-boot-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		enable-active-high;
+		gpio = <&gpio0 RK_PC5 GPIO_ACTIVE_HIGH>;
+		vin-supply = <&vcc3v3_sys>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&vcc3v3_lcd1_n_en>;
 
 		regulator-state-mem {
 			regulator-off-in-suspend;
@@ -339,6 +351,15 @@ rgmii_phy1: ethernet-phy@0 {
 };
 
 &pinctrl {
+	display {
+		vcc3v3_lcd0_n_en: vcc3v3_lcd0_n_en {
+			rockchip,pins = <0 RK_PC7 0 &pcfg_pull_none>;
+		};
+		vcc3v3_lcd1_n_en: vcc3v3_lcd1_n_en {
+			rockchip,pins = <0 RK_PC5 0 &pcfg_pull_none>;
+		};
+	};
+
 	pmic {
 		pmic_int: pmic_int {
 			rockchip,pins =
-- 
2.30.2