[PATCH 2/3] arm64: dts: mediatek: mt6795-xperia-m5: Add display backlight support

AngeloGioacchino Del Regno
2023-07-20T09:18:32Z

Add the relevant nodes for display backlight on Sony Xperia M5: this
needs both the SoC PWM IP and MT6332 PMIC LED strings.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
.../dts/mediatek/mt6795-sony-xperia-m5.dts | 32 +++++++++++++++++++
1 file changed, 32 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt6795-sony-xperia-m5.dts b/arch/arm64/boot/dts/mediatek/mt6795-sony-xperia-m5.dts
index b5746e6d0b15..ecdf00707a44 100644
--- a/arch/arm64/boot/dts/mediatek/mt6795-sony-xperia-m5.dts
+++ b/arch/arm64/boot/dts/mediatek/mt6795-sony-xperia-m5.dts
@@ -22,6 +22,23 @@ aliases {
serial1 = &uart1;
};

+ backlight_lcd0: backlight {
+ compatible = "led-backlight";
+ leds = <&disp_led_pwm>, <&pmic_bl_led>;
+
+ default-brightness-level = <300>;
+ };
+
+ led-controller-display {
+ compatible = "pwm-leds";
+
+ disp_led_pwm: led-0 {
+ label = "backlight-pwm";
+ pwms = <&pwm0 0 500000>;
+ max-brightness = <1024>;
+ };
+ };
+
memory@40000000 {
device_type = "memory";
reg = <0 0x40000000 0 0x1e800000>;
@@ -338,6 +355,21 @@ &pmic {
* an interrupt on the companion, so we use the MT6332 IRQ GPIO.
*/
interrupts = <GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>;
+
+ mt6332-led {
+ compatible = "mediatek,mt6332-led";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pmic_bl_led: led@0 {
+ reg = <0>;
+ label = "backlight-pmic";
+ };
+ };
+};
+
+&pwm0 {
+ status = "okay";
};

&uart0 {
--
2.40.1