linux-kernel - [PATCH 3/6] arm64: dts: allwinner: pinephone: Add LED flash

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Date:   Wed,  4 Nov 2020 23:41:32 -0600
From:   Samuel Holland <samuel@...lland.org>
To:     Maxime Ripard <mripard@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        linux-arm-kernel@...ts.infradead.org
Cc:     Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com,
        Samuel Holland <samuel@...lland.org>,
        Luca Weiss <luca@...tu.xyz>
Subject: [PATCH 3/6] arm64: dts: allwinner: pinephone: Add LED flash

From: Luca Weiss <luca@...tu.xyz>

All revisions of the PinePhone have an SGM3140 LED flash. The gpios were
swapped on v1.0 of the board, but this was fixed in later revisions.

Signed-off-by: Luca Weiss <luca@...tu.xyz>
Signed-off-by: Samuel Holland <samuel@...lland.org>
---
 .../boot/dts/allwinner/sun50i-a64-pinephone-1.0.dts   |  5 +++++
 .../boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts   |  5 +++++
 .../boot/dts/allwinner/sun50i-a64-pinephone-1.2.dts   |  5 +++++
 .../boot/dts/allwinner/sun50i-a64-pinephone.dtsi      | 11 +++++++++++
 4 files changed, 26 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.0.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.0.dts
index 0c42272106af..3d5a2ae9aa39 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.0.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.0.dts
@@ -9,3 +9,8 @@ / {
 	model = "Pine64 PinePhone Developer Batch (1.0)";
 	compatible = "pine64,pinephone-1.0", "allwinner,sun50i-a64";
 };
+
+&sgm3140 {
+	enable-gpios = <&pio 2 3 GPIO_ACTIVE_HIGH>; /* PC3 */
+	flash-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* PD24 */
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts
index 3e99a87e9ce5..c9b9f6e9ee8c 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts
@@ -28,3 +28,8 @@ &backlight {
 	num-interpolated-steps = <50>;
 	default-brightness-level = <400>;
 };
+
+&sgm3140 {
+	enable-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* PD24 */
+	flash-gpios = <&pio 2 3 GPIO_ACTIVE_HIGH>; /* PC3 */
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.2.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.2.dts
index a9f5b670c9b8..94e4f11e0215 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.2.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.2.dts
@@ -38,3 +38,8 @@ &lis3mdl {
 	interrupt-parent = <&pio>;
 	interrupts = <1 1 IRQ_TYPE_EDGE_RISING>; /* PB1 */
 };
+
+&sgm3140 {
+	enable-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* PD24 */
+	flash-gpios = <&pio 2 3 GPIO_ACTIVE_HIGH>; /* PC3 */
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
index 57c89c3b71e9..e595a8262920 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone.dtsi
@@ -49,6 +49,17 @@ red {
 		};
 	};
 
+	sgm3140: led-controller {
+		compatible = "sgmicro,sgm3140";
+		vin-supply = <&reg_dcdc1>;
+
+		sgm3140_flash: led {
+			function = LED_FUNCTION_FLASH;
+			color = <LED_COLOR_ID_WHITE>;
+			flash-max-timeout-us = <250000>;
+		};
+	};
+
 	speaker_amp: audio-amplifier {
 		compatible = "simple-audio-amplifier";
 		enable-gpios = <&pio 2 7 GPIO_ACTIVE_HIGH>; /* PC7 */
-- 
2.26.2