linux-kernel - [PATCH 2/2] arm64: dts: mediatek: mt7988: add PWM controller

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Date: Tue, 13 Feb 2024 17:46:33 +0100
From: Rafał Miłecki <zajec5@...il.com>
To: Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
Cc: John Crispin <john@...ozen.org>,
	linux-pwm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	Rafał Miłecki <rafal@...ecki.pl>
Subject: [PATCH 2/2] arm64: dts: mediatek: mt7988: add PWM controller

From: Rafał Miłecki <rafal@...ecki.pl>

Add binding for on-SoC controller that can control up to 8 PWMs.

Signed-off-by: Rafał Miłecki <rafal@...ecki.pl>
---
 arch/arm64/boot/dts/mediatek/mt7988a.dtsi | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
index bba97de4fb44..67007626b5cd 100644
--- a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only OR MIT
 
+#include <dt-bindings/clock/mediatek,mt7988-clk.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 
 / {
@@ -78,7 +79,7 @@ gic: interrupt-controller@...0000 {
 			#interrupt-cells = <3>;
 		};
 
-		clock-controller@...01000 {
+		infracfg: clock-controller@...01000 {
 			compatible = "mediatek,mt7988-infracfg", "syscon";
 			reg = <0 0x10001000 0 0x1000>;
 			#clock-cells = <1>;
@@ -103,6 +104,24 @@ clock-controller@...1e000 {
 			#clock-cells = <1>;
 		};
 
+		pwm@...48000 {
+			compatible = "mediatek,mt7988-pwm";
+			reg = <0 0x10048000 0 0x1000>;
+			clocks = <&infracfg CLK_INFRA_66M_PWM_BCK>,
+				 <&infracfg CLK_INFRA_66M_PWM_HCK>,
+				 <&infracfg CLK_INFRA_66M_PWM_CK1>,
+				 <&infracfg CLK_INFRA_66M_PWM_CK2>,
+				 <&infracfg CLK_INFRA_66M_PWM_CK3>,
+				 <&infracfg CLK_INFRA_66M_PWM_CK4>,
+				 <&infracfg CLK_INFRA_66M_PWM_CK5>,
+				 <&infracfg CLK_INFRA_66M_PWM_CK6>,
+				 <&infracfg CLK_INFRA_66M_PWM_CK7>,
+				 <&infracfg CLK_INFRA_66M_PWM_CK8>;
+			clock-names = "top", "main", "pwm1", "pwm2", "pwm3", "pwm4", "pwm5", "pwm6",
+				      "pwm7","pwm8";
+			#pwm-cells = <2>;
+		};
+
 		clock-controller@...40000 {
 			compatible = "mediatek,mt7988-xfi-pll";
 			reg = <0 0x11f40000 0 0x1000>;
-- 
2.35.3