linux-kernel - [PATCH 4/6] arm64: dts: qcom: msm8916-longcheer-l8150: Add flash LED

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Date:   Fri, 13 Nov 2020 22:59:15 +0500
From:   nikitos.tr@...il.com
To:     agross@...nel.org, bjorn.andersson@...aro.org
Cc:     robh+dt@...nel.org, stephan@...hold.net, Michael.Srba@...nam.cz,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, phone-devel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht,
        Nikita Travkin <nikitos.tr@...il.com>
Subject: [PATCH 4/6] arm64: dts: qcom: msm8916-longcheer-l8150: Add flash LED

From: Nikita Travkin <nikitos.tr@...il.com>

L8150 uses SGM3785 Flash LED driver. It is similar to SGM3140 but
can also be controlled with PWM. Since SoC doesn't have PWM, add
led to the device tree using sgm3140 driver.

Signed-off-by: Nikita Travkin <nikitos.tr@...il.com>
---
 .../boot/dts/qcom/msm8916-longcheer-l8150.dts | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8916-longcheer-l8150.dts b/arch/arm64/boot/dts/qcom/msm8916-longcheer-l8150.dts
index 79a2475e3cd5..2b8670dd4b71 100644
--- a/arch/arm64/boot/dts/qcom/msm8916-longcheer-l8150.dts
+++ b/arch/arm64/boot/dts/qcom/msm8916-longcheer-l8150.dts
@@ -6,6 +6,7 @@
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/leds/common.h>
 
 / {
 	model = "Longcheer L8150";
@@ -65,6 +66,21 @@ reg_ctp: regulator-ctp {
 		pinctrl-names = "default";
 		pinctrl-0 = <&ctp_pwr_en_default>;
 	};
+
+	flash-led-controller {
+		compatible = "sgmicro,sgm3140";
+		flash-gpios = <&msmgpio 31 GPIO_ACTIVE_HIGH>;
+		enable-gpios = <&msmgpio 32 GPIO_ACTIVE_HIGH>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&camera_flash_default>;
+
+		flash_led: led {
+			function = LED_FUNCTION_FLASH;
+			color = <LED_COLOR_ID_WHITE>;
+			flash-max-timeout-us = <250000>;
+		};
+	};
 };
 
 &blsp_i2c2 {
@@ -286,6 +302,14 @@ l18 {
 };
 
 &msmgpio {
+	camera_flash_default: camera-flash-default {
+		pins = "gpio31", "gpio32";
+		function = "gpio";
+
+		drive-strength = <2>;
+		bias-disable;
+	};
+
 	ctp_pwr_en_default: ctp-pwr-en-default {
 		pins = "gpio17";
 		function = "gpio";
-- 
2.25.1