linux-kernel - [PATCH] riscv: dts: Add DT support for SiFive FU540 PWM driver

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Date:   Wed, 21 Aug 2019 14:53:40 +0530
From:   Yash Shah <yash.shah@...ive.com>
To:     robh+dt@...nel.org, mark.rutland@....com, paul.walmsley@...ive.com
Cc:     palmer@...ive.com, aou@...s.berkeley.edu, bmeng.cn@...il.com,
        sagar.kadam@...ive.com, devicetree@...r.kernel.org,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        sachin.ghadi@...ive.com, Yash Shah <yash.shah@...ive.com>
Subject: [PATCH] riscv: dts: Add DT support for SiFive FU540 PWM driver

Add the PWM DT node in SiFive FU540 soc-specific DT file.
Enable the PWM nodes in HiFive Unleashed board-specific DT file.

Signed-off-by: Yash Shah <yash.shah@...ive.com>
---
 arch/riscv/boot/dts/sifive/fu540-c000.dtsi          | 19 +++++++++++++++++++
 arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts |  8 ++++++++
 2 files changed, 27 insertions(+)

diff --git a/arch/riscv/boot/dts/sifive/fu540-c000.dtsi b/arch/riscv/boot/dts/sifive/fu540-c000.dtsi
index 42b5ec2..bb422db 100644
--- a/arch/riscv/boot/dts/sifive/fu540-c000.dtsi
+++ b/arch/riscv/boot/dts/sifive/fu540-c000.dtsi
@@ -230,6 +230,25 @@
 			#size-cells = <0>;
 			status = "disabled";
 		};
+		pwm0: pwm@...20000 {
+			compatible = "sifive,pwm0";
+			reg = <0x0 0x10020000 0x0 0x1000>;
+			interrupt-parent = <&plic0>;
+			interrupts = <42 43 44 45>;
+			clocks = <&prci PRCI_CLK_TLCLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+		pwm1: pwm@...21000 {
+			compatible = "sifive,pwm0";
+			reg = <0x0 0x10021000 0x0 0x1000>;
+			interrupt-parent = <&plic0>;
+			interrupts = <46 47 48 49>;
+			reg-names = "control";
+			clocks = <&prci PRCI_CLK_TLCLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
 
 	};
 };
diff --git a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
index 93d68cb..104d334 100644
--- a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
+++ b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
@@ -85,3 +85,11 @@
 		reg = <0>;
 	};
 };
+
+&pwm0 {
+	status = "okay";
+};
+
+&pwm1 {
+	status = "okay";
+};
-- 
1.9.1