arm64: dts: apple: t7000: Add backlight nodes

Add DWI backlight controller nodes for Apple A8 SoC, and enable it for:

- iPhone 6
- iPhone 6 Plus
- iPad mini 4
- iPod touch 6

Signed-off-by: Nick Chan <towinchenmi@gmail.com>
Link: https://lore.kernel.org/r/20250228-dwi-dt-v2-2-69e450bc4bfb@gmail.com
Signed-off-by: Sven Peter <sven@svenpeter.dev>

diff --git a/arch/arm64/boot/dts/apple/t7000-handheld.dtsi b/arch/arm64/boot/dts/apple/t7000-handheld.dtsi
index 8984c9ec6cc8e3c86281a3da719edb56c5bb7f5a..7b58aa648b53dadafb3a01d9ae1e01afa6cd5869 100644 (file)
--- a/arch/arm64/boot/dts/apple/t7000-handheld.dtsi
+++ b/arch/arm64/boot/dts/apple/t7000-handheld.dtsi
@@ -22,6 +22,10 @@
        };
 };
 
+&dwi_bl {
+       status = "okay";
+};
+
 &serial0 {
        status = "okay";
 };

diff --git a/arch/arm64/boot/dts/apple/t7000.dtsi b/arch/arm64/boot/dts/apple/t7000.dtsi
index 32cac8c30e62d657079dbf32aece8af0fd9cef38..85a34dc7bc01088167d33d7b7e1cdb78161c46d8 100644 (file)
--- a/arch/arm64/boot/dts/apple/t7000.dtsi
+++ b/arch/arm64/boot/dts/apple/t7000.dtsi
@@ -155,6 +155,13 @@
                        power-domains = <&ps_aic>;
                };
 
+               dwi_bl: backlight@20e200010 {
+                       compatible = "apple,t7000-dwi-bl", "apple,dwi-bl";
+                       reg = <0x2 0x0e200010 0x0 0x8>;
+                       power-domains = <&ps_dwi>;
+                       status = "disabled";
+               };
+
                pinctrl: pinctrl@20e300000 {
                        compatible = "apple,t7000-pinctrl", "apple,pinctrl";
                        reg = <0x2 0x0e300000 0x0 0x100000>;