On Mon, 16 Sep 2019, Yash Shah wrote:
> On Sat, Sep 14, 2019 at 2:50 AM Palmer Dabbelt <palmer@xxxxxxxxxx> wrote:
> >
> > On Tue, 10 Sep 2019 02:52:07 PDT (-0700), yash.shah@xxxxxxxxxx wrote:
> > > Hi,
> > >
> > > Any comments on this patch?
> >
> > I don't see "sifive,pwm0" in the DT bindings documentation, and it doesn't
> > match our standard way of doing these things (which would have at least
> > "sifive,fu540-c000-pwm").
>
> "sifive,pwm0" is present in the DT bindings documentation at
> Documentation/devicetree/bindings/pwm/pwm-sifive.txt
> Yes, I agree that this patch is missing "sifive,fu540-c000-pwm". I
> will add it along with "sifive,pwm0" and repost as version 2.
Fixed the compat string here and also dropped the superfluous reg-names
property from pwm1. Queued for v5.4-rc, thanks.
- Paul
From: Yash Shah <yash.shah@xxxxxxxxxx>
Date: Wed, 21 Aug 2019 14:53:40 +0530
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@xxxxxxxxxx>
Cc: Palmer Dabbelt <palmer@xxxxxxxxxx>
[paul.walmsley@xxxxxxxxxx: added chip-specific compatible string;
dropped reg-names string from pwm1]
Signed-off-by: Paul Walmsley <paul.walmsley@xxxxxxxxxx>
---
arch/riscv/boot/dts/sifive/fu540-c000.dtsi | 18 ++++++++++++++++++
.../boot/dts/sifive/hifive-unleashed-a00.dts | 8 ++++++++
2 files changed, 26 insertions(+)
diff --git a/arch/riscv/boot/dts/sifive/fu540-c000.dtsi b/arch/riscv/boot/dts/sifive/fu540-c000.dtsi
index 42b5ec223100..5a29211d396e 100644
--- a/arch/riscv/boot/dts/sifive/fu540-c000.dtsi
+++ b/arch/riscv/boot/dts/sifive/fu540-c000.dtsi
@@ -230,6 +230,24 @@
#size-cells = <0>;
status = "disabled";
};
+ pwm0: pwm@10020000 {
+ compatible = "sifive,fu540-c000-pwm", "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,fu540-c000-pwm", "sifive,pwm0";
+ reg = <0x0 0x10021000 0x0 0x1000>;
+ interrupt-parent = <&plic0>;
+ interrupts = <46 47 48 49>;
+ 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 93d68cbd64fe..104d334511cd 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";
+};
--
2.23.0
