diff mbox series

[v8,4/5] arm64: dts: apple: t600x: Add PWM controller

Message ID 20230214-fpwm-v8-4-65518a0d4944@gmail.com (mailing list archive)
State New, archived
Headers show
Series PWM and keyboard backlight driver for ARM Macs | expand

Commit Message

Sasha Finkelstein via B4 Relay March 10, 2023, 6:44 p.m. UTC 
From: Sasha Finkelstein <7d578vix8hzw@opayq.net>

Adds PWM controller and keyboard backlight bindings for M1 Pro/Max MacBook Pros

Signed-off-by: Sasha Finkelstein <fnkl.kernel@gmail.com>
Acked-by: Hector Martin <marcan@marcan.st>
---
 arch/arm64/boot/dts/apple/t600x-die0.dtsi      |  9 +++++++++
 arch/arm64/boot/dts/apple/t600x-j314-j316.dtsi | 18 ++++++++++++++++++
 2 files changed, 27 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/apple/t600x-die0.dtsi b/arch/arm64/boot/dts/apple/t600x-die0.dtsi
index 1c41954e3899..9157ae2a9f7f 100644
--- a/arch/arm64/boot/dts/apple/t600x-die0.dtsi
+++ b/arch/arm64/boot/dts/apple/t600x-die0.dtsi
@@ -71,6 +71,15 @@  sio_dart_1: iommu@39b008000 {
 		power-domains = <&ps_sio_cpu>;
 	};
 
+	fpwm0: pwm@39b030000 {
+		compatible = "apple,t6000-fpwm", "apple,s5l-fpwm";
+		reg = <0x3 0x9b030000 0x0 0x4000>;
+		power-domains = <&ps_fpwm0>;
+		clocks = <&clkref>;
+		#pwm-cells = <2>;
+		status = "disabled";
+	};
+
 	i2c0: i2c@39b040000 {
 		compatible = "apple,t6000-i2c", "apple,i2c";
 		reg = <0x3 0x9b040000 0x0 0x4000>;
diff --git a/arch/arm64/boot/dts/apple/t600x-j314-j316.dtsi b/arch/arm64/boot/dts/apple/t600x-j314-j316.dtsi
index 34906d522f0a..96de7165df6d 100644
--- a/arch/arm64/boot/dts/apple/t600x-j314-j316.dtsi
+++ b/arch/arm64/boot/dts/apple/t600x-j314-j316.dtsi
@@ -9,6 +9,8 @@ 
  * Copyright The Asahi Linux Contributors
  */
 
+#include <dt-bindings/leds/common.h>
+
 / {
 	aliases {
 		serial0 = &serial0;
@@ -34,6 +36,18 @@  memory@10000000000 {
 		device_type = "memory";
 		reg = <0x100 0 0x2 0>; /* To be filled by loader */
 	};
+
+	led-controller {
+		compatible = "pwm-leds";
+		led-0 {
+			pwms = <&fpwm0 0 40000>;
+			label = "kbd_backlight";
+			function = LED_FUNCTION_KBD_BACKLIGHT;
+			color = <LED_COLOR_ID_WHITE>;
+			max-brightness = <255>;
+			default-state = "keep";
+		};
+	};
 };
 
 &serial0 {
@@ -110,5 +124,9 @@  &pcie0_dart_3 {
 	status = "disabled";
 };
 
+&fpwm0 {
+	status = "okay";
+};
+
 /delete-node/ &port02;
 /delete-node/ &port03;