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

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Message-ID: <CAJ2_jOGO-isv52rnwRusV7jtyCY_JWYWAj9opN3Zg6ZbZr-8-w@mail.gmail.com>
Date:   Tue, 10 Sep 2019 15:22:07 +0530
From:   Yash Shah <yash.shah@...ive.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Paul Walmsley <paul.walmsley@...ive.com>
Cc:     Palmer Dabbelt <palmer@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Bin Meng <bmeng.cn@...il.com>,
        Sagar Kadam <sagar.kadam@...ive.com>,
        devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org,
        "linux-kernel@...r.kernel.org List" <linux-kernel@...r.kernel.org>,
        Sachin Ghadi <sachin.ghadi@...ive.com>
Subject: Re: [PATCH] riscv: dts: Add DT support for SiFive FU540 PWM driver

Hi,

Any comments on this patch?

- Yash

On Wed, Aug 21, 2019 at 2:53 PM Yash Shah <yash.shah@...ive.com> wrote:
>
> 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
>