linux-kernel - [PATCH 2/2] arm64: dts: mediatek: mt8173-elm: Add backlight enable pin config

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Message-Id: <20211102144224.457446-2-angelogioacchino.delregno@collabora.com>
Date:   Tue,  2 Nov 2021 15:42:24 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     robh+dt@...nel.org
Cc:     matthias.bgg@...il.com, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Subject: [PATCH 2/2] arm64: dts: mediatek: mt8173-elm: Add backlight enable pin config

Add the proper pinctrl for GPIO95 backlight enable pin and assign it
to the pwm-backlight node.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
index f292ca459a9a..9c75fbb31f98 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
@@ -27,6 +27,8 @@ backlight: backlight {
 		power-supply = <&bl_fixed_reg>;
 		enable-gpios = <&pio 95 GPIO_ACTIVE_HIGH>;
 
+		pinctrl-names = "default";
+		pinctrl-0 = <&panel_backlight_en_pins>;
 		status = "okay";
 	};
 
@@ -825,6 +827,12 @@ pins_clk {
 		};
 	};
 
+	panel_backlight_en_pins: panel_backlight_en_pins {
+		pins1 {
+			pinmux = <MT8173_PIN_95_PCM_TX__FUNC_GPIO95>;
+		};
+	};
+
 	panel_fixed_pins: panel_fixed_pins {
 		pins1 {
 			pinmux = <MT8173_PIN_41_CMMCLK__FUNC_GPIO41>;
-- 
2.33.1