From e9f505ca122359b6402f8dae1408311f25e58afa Mon Sep 17 00:00:00 2001
From: Bogdan Ionescu <bogdan.ionescu.work@gmail.com>
Date: Mon, 6 Mar 2023 20:39:41 +0000
Subject: [PATCH] dts: dt-bindings: motorola-surnia enable backlight

Signed-off-by: Bogdan Ionescu <bogdan.ionescu.work@gmail.com>
---
 .../boot/dts/qcom/msm8916-motorola-surnia.dts | 37 ++++++++++++++++++-
 include/dt-bindings/leds/leds-bd65b60.h       | 22 +++++++++++
 2 files changed, 58 insertions(+), 1 deletion(-)
 create mode 100644 include/dt-bindings/leds/leds-bd65b60.h

diff --git a/arch/arm64/boot/dts/qcom/msm8916-motorola-surnia.dts b/arch/arm64/boot/dts/qcom/msm8916-motorola-surnia.dts
index ac51a491b56630..181fbdc9ba67de 100644
--- a/arch/arm64/boot/dts/qcom/msm8916-motorola-surnia.dts
+++ b/arch/arm64/boot/dts/qcom/msm8916-motorola-surnia.dts
@@ -8,6 +8,8 @@
 #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>
+#include <dt-bindings/leds/leds-bd65b60.h>
 
 / {
 	model = "Motorola Moto E 2015 LTE (surnia)";
@@ -57,6 +59,31 @@
 		pinctrl-1 = <&usb_id_sleep>;
 		pinctrl-names = "default", "sleep";
 	};
+
+	backlight_dsi: backlight-dsi {
+		compatible = "led-backlight";
+		leds = <&backlight_led>;
+		default-brightness-level = <192>;
+	};
+};
+
+&blsp_i2c1 {
+	status = "okay";
+
+	led_controler@64 {
+		compatible = "rohm,bd65b60";
+		reg = <0x64>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&backlight_reset_default>;
+
+		backlight_led: led {
+			function = LED_FUNCTION_BACKLIGHT;
+			color = <LED_COLOR_ID_WHITE>;
+			rohm,enable = <BD65B60_ENABLE_LED1>;
+			default-state = "keep";
+			linux,default-trigger = "backlight";
+		};
+	};
 };
 
 &blsp_i2c2 {
@@ -124,7 +151,7 @@
 	panel@0 {
 		compatible = "motorola,surnia-panel";
 		reg = <0>;
-
+		backlight = <&backlight_dsi>;
 		power-supply = <&pm8916_l17>;
 		reset-gpios = <&msmgpio 78 GPIO_ACTIVE_LOW>;
 
@@ -320,6 +347,14 @@
 		bias-pull-up;
 	};
 
+	backlight_reset_default: backlight-reset-default-state {
+		pins = "gpio36";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-down;
+		output-high;
+	};
+
 	gpio_keys_default: gpio-keys-default-state {
 		pins = "gpio107";
 		function = "gpio";
diff --git a/include/dt-bindings/leds/leds-bd65b60.h b/include/dt-bindings/leds/leds-bd65b60.h
new file mode 100644
index 00000000000000..3f2cf67baec469
--- /dev/null
+++ b/include/dt-bindings/leds/leds-bd65b60.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This header provides macros for the ROHM BD65B60 device tre§e bindings.
+ *
+ * Copyright (C) 2023 Bogdan Ionescu <bogdan.ionescu.work+kernel@gmail.com>
+ */
+
+#ifndef _DT_BINDINGS_LEDS_BD65B60_H
+#define _DT_BINDINGS_LEDS_BD65B60_H
+
+#define BIT(X) (1 << (X))
+
+#define BD65B60_ENABLE_NONE 0
+#define BD65B60_ENABLE_LED1 BIT(0)
+#define BD65B60_ENABLE_LED2 BIT(2)
+#define BD65B60_ENABLE_BOTH (BD65B60_ENABLE_LED1 | BD65B60_ENABLE_LED2)
+
+#define BD65B60_OVP_25V 0
+#define BD65B60_OVP_30V BIT(4)
+#define BD65B60_OVP_35V BIT(5)
+
+#endif /* _DT_BINDINGS_LEDS_BD65B60_H */