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From:   Sasha Finkelstein <fnkl.kernel@gmail.com>
To:     u.kleine-koenig@pengutronix.de, thierry.reding@gmail.com,
        robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org
Cc:     marcan@marcan.st, sven@svenpeter.dev, alyssa@rosenzweig.io,
        asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
        linux-pwm@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Sasha Finkelstein <fnkl.kernel@gmail.com>
Subject: [PATCH v6 4/5] arm64: dts: apple: t600x: Add PWM controller
Date:   Fri,  6 Jan 2023 16:58:43 +0300
Message-Id: <20230106135839.18676-5-fnkl.kernel@gmail.com>
In-Reply-To: <20230106135839.18676-1-fnkl.kernel@gmail.com>
References: <20230106135839.18676-1-fnkl.kernel@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

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

Signed-off-by: Sasha Finkelstein <fnkl.kernel@gmail.com>
---
 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 --git a/arch/arm64/boot/dts/apple/t600x-die0.dtsi b/arch/arm64/boot/dts/apple/t600x-die0.dtsi
index 1c41954e3899..7065045dc43a 100644
--- a/arch/arm64/boot/dts/apple/t600x-die0.dtsi
+++ b/arch/arm64/boot/dts/apple/t600x-die0.dtsi
@@ -154,6 +154,15 @@ i2c5: i2c@39b054000 {
 		status = "disabled";
 	};
 
+	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";
+	};
+
 	serial0: serial@39b200000 {
 		compatible = "apple,s5l-uart";
 		reg = <0x3 0x9b200000 0x0 0x1000>;
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;
-- 
2.37.1 (Apple Git-137.1)