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

[Yash Shah]

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.s...@sifive.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@10020000 {
+                       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@10021000 {
+                       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