arm64: dts: apple: s5l8960x: Add backlight nodes

Add DWI backlight controller nodes for Apple A7 SoC, and enable it for
iPhone 5s.

Signed-off-by: Nick Chan <towinchenmi@gmail.com>
Link: https://lore.kernel.org/r/20250228-dwi-dt-v2-1-69e450bc4bfb@gmail.com
Signed-off-by: Sven Peter <sven@svenpeter.dev>

diff --git a/arch/arm64/boot/dts/apple/s5l8960x-5s.dtsi b/arch/arm64/boot/dts/apple/s5l8960x-5s.dtsi
index bfbd2629e206736822a157431ec959e1aa70f41b..8868df1538d68595cfe92c80b1fcecee42d348df 100644 (file)
--- a/arch/arm64/boot/dts/apple/s5l8960x-5s.dtsi
+++ b/arch/arm64/boot/dts/apple/s5l8960x-5s.dtsi
@@ -51,6 +51,10 @@
        };
 };
 
+&dwi_bl {
+       status = "okay";
+};
+
 &framebuffer0 {
        power-domains = <&ps_disp0 &ps_mipi_dsi>;
 };

diff --git a/arch/arm64/boot/dts/apple/s5l8960x.dtsi b/arch/arm64/boot/dts/apple/s5l8960x.dtsi
index 64dbae5c73515bb6a1651b9b26d349d0cfd0408a..d820b0e430507f681a5f2aa13a498be98080e1db 100644 (file)
--- a/arch/arm64/boot/dts/apple/s5l8960x.dtsi
+++ b/arch/arm64/boot/dts/apple/s5l8960x.dtsi
@@ -100,6 +100,13 @@
                        power-domains = <&ps_aic>;
                };
 
+               dwi_bl: backlight@20e200010 {
+                       compatible = "apple,s5l8960x-dwi-bl", "apple,dwi-bl";
+                       reg = <0x2 0x0e200010 0x0 0x8>;
+                       power-domains = <&ps_dwi>;
+                       status = "disabled";
+               };
+
                pinctrl: pinctrl@20e300000 {
                        compatible = "apple,s5l8960x-pinctrl", "apple,pinctrl";
                        reg = <0x2 0x0e300000 0x0 0x100000>;