From 47e36feba470ae10b06841753c3747e9fcf2d149 Mon Sep 17 00:00:00 2001
From: William Qiu <william.qiu@starfivetech.com>
Date: Fri, 22 Dec 2023 17:45:47 +0800
Subject: riscv: dts: starfive: jh7100: Add PWM node and pins configuration

Add OpenCores PWM controller node and add PWM pins configuration
on VisionFive 1 board.

Signed-off-by: William Qiu <william.qiu@starfivetech.com>
Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
(cherry picked from commit 5e598b99fedf57858a98c5edf9da55e378910781)
Signed-off-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
---
 arch/riscv/boot/dts/starfive/jh7100-common.dtsi | 24 ++++++++++++++++++++++++
 arch/riscv/boot/dts/starfive/jh7100.dtsi        |  9 +++++++++
 2 files changed, 33 insertions(+)

diff --git a/arch/riscv/boot/dts/starfive/jh7100-common.dtsi b/arch/riscv/boot/dts/starfive/jh7100-common.dtsi
index 42fb61c36068..6aac0404b465 100644
--- a/arch/riscv/boot/dts/starfive/jh7100-common.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7100-common.dtsi
@@ -115,6 +115,24 @@
 		};
 	};
 
+	pwm_pins: pwm-0 {
+		pwm-pins {
+			pinmux = <GPIOMUX(7,
+				  GPO_PWM_PAD_OUT_BIT0,
+				  GPO_PWM_PAD_OE_N_BIT0,
+				  GPI_NONE)>,
+				 <GPIOMUX(5,
+				  GPO_PWM_PAD_OUT_BIT1,
+				  GPO_PWM_PAD_OE_N_BIT1,
+				  GPI_NONE)>;
+			bias-disable;
+			drive-strength = <35>;
+			input-disable;
+			input-schmitt-disable;
+			slew-rate = <0>;
+		};
+	};
+
 	sdio0_pins: sdio0-0 {
 		clk-pins {
 			pinmux = <GPIOMUX(54, GPO_SDIO0_PAD_CCLK_OUT,
@@ -257,6 +275,12 @@
 	clock-frequency = <27000000>;
 };
 
+&pwm {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm_pins>;
+	status = "okay";
+};
+
 &sdio0 {
 	broken-cd;
 	bus-width = <4>;
diff --git a/arch/riscv/boot/dts/starfive/jh7100.dtsi b/arch/riscv/boot/dts/starfive/jh7100.dtsi
index 5d499d8aa804..667ab0d58850 100644
--- a/arch/riscv/boot/dts/starfive/jh7100.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7100.dtsi
@@ -324,6 +324,15 @@
 				 <&rstgen JH7100_RSTN_WDT>;
 		};
 
+		pwm: pwm@12490000 {
+			compatible = "starfive,jh7100-pwm", "opencores,pwm-v1";
+			reg = <0x0 0x12490000 0x0 0x10000>;
+			clocks = <&clkgen JH7100_CLK_PWM_APB>;
+			resets = <&rstgen JH7100_RSTN_PWM_APB>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
 		sfctemp: temperature-sensor@124a0000 {
 			compatible = "starfive,jh7100-temp";
 			reg = <0x0 0x124a0000 0x0 0x10000>;
-- 
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