From: Hsin-Yi Wang <hsinyi@chromium.org>
Date: Tue, 24 Nov 2020 04:12:54 +0000 (+0800)
Subject: arm64: dts: mt8183: Add pwm and backlight node
X-Git-Tag: v5.15~2144^2~35^2~5
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f15722c0fef05a62d64ca1b1fc682f6f7396c108;p=platform%2Fkernel%2Flinux-starfive.git

arm64: dts: mt8183: Add pwm and backlight node

Add pwm to mt8183 and backlight to mt8183-kukui.

Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20201124041253.4181273-1-hsinyi@chromium.org
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
---

diff --git a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
index 85f7c33..bf2ad12 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
@@ -19,6 +19,17 @@
 		stdout-path = "serial0:115200n8";
 	};
 
+	backlight_lcd0: backlight_lcd0 {
+		compatible = "pwm-backlight";
+		pwms = <&pwm0 0 500000>;
+		power-supply = <&bl_pp5000>;
+		enable-gpios = <&pio 176 0>;
+		brightness-levels = <0 1023>;
+		num-interpolated-steps = <1023>;
+		default-brightness-level = <576>;
+		status = "okay";
+	};
+
 	memory@40000000 {
 		device_type = "memory";
 		reg = <0 0x40000000 0 0x80000000>;
@@ -536,6 +547,17 @@
 		};
 	};
 
+	pwm0_pin_default: pwm0_pin_default {
+		pins1 {
+			pinmux = <PINMUX_GPIO176__FUNC_GPIO176>;
+			output-high;
+			bias-pull-up;
+		};
+		pins2 {
+			pinmux = <PINMUX_GPIO43__FUNC_DISP_PWM>;
+		};
+	};
+
 	scp_pins: scp {
 		pins_scp_uart {
 			pinmux = <PINMUX_GPIO110__FUNC_TP_URXD1_AO>,
@@ -670,6 +692,12 @@
 	};
 };
 
+&pwm0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm0_pin_default>;
+};
+
 &scp {
 	status = "okay";
 	pinctrl-names = "default";
diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
index 1ef39c5..2a88325 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
@@ -641,6 +641,16 @@
 			status = "disabled";
 		};
 
+		pwm0: pwm@1100e000 {
+			compatible = "mediatek,mt8183-disp-pwm";
+			reg = <0 0x1100e000 0 0x1000>;
+			interrupts = <GIC_SPI 128 IRQ_TYPE_LEVEL_LOW>;
+			#pwm-cells = <2>;
+			clocks = <&topckgen CLK_TOP_MUX_DISP_PWM>,
+					<&infracfg CLK_INFRA_DISP_PWM>;
+			clock-names = "main", "mm";
+		};
+
 		i2c3: i2c@1100f000 {
 			compatible = "mediatek,mt8183-i2c";
 			reg = <0 0x1100f000 0 0x1000>,