linux-kernel - Re: [PATCH] riscv: dts: Add GPIO reboot method to HiFive Unleashed DTS file

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Message-ID: <mhng-96dfac99-10d0-466f-8119-fbca6a67fa22@palmerdabbelt-glaptop1>
Date:   Thu, 05 Mar 2020 12:28:54 -0800 (PST)
From:   Palmer Dabbelt <palmer@...belt.com>
To:     yash.shah@...ive.com
CC:     robh+dt@...nel.org, mark.rutland@....com,
        Paul Walmsley <paul.walmsley@...ive.com>,
        aou@...s.berkeley.edu, Atish Patra <Atish.Patra@....com>,
        devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org, yash.shah@...ive.com
Subject:     Re: [PATCH] riscv: dts: Add GPIO reboot method to HiFive Unleashed DTS file

On Tue, 18 Feb 2020 19:49:07 PST (-0800), yash.shah@...ive.com wrote:
> Add the ability to reboot the HiFive Unleashed board via GPIO.
>
> Signed-off-by: Yash Shah <yash.shah@...ive.com>
> ---
>  arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
> index 609198c..4a2729f 100644
> --- a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
> +++ b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
> @@ -2,6 +2,7 @@
>  /* Copyright (c) 2018-2019 SiFive, Inc */
>
>  #include "fu540-c000.dtsi"
> +#include <dt-bindings/gpio/gpio.h>
>
>  /* Clock frequency (in Hz) of the PCB crystal for rtcclk */
>  #define RTCCLK_FREQ		1000000
> @@ -41,6 +42,10 @@
>  		clock-frequency = <RTCCLK_FREQ>;
>  		clock-output-names = "rtcclk";
>  	};
> +	gpio-restart {
> +		compatible = "gpio-restart";
> +		gpios = <&gpio 10 GPIO_ACTIVE_LOW>;
> +	};
>  };
>
>  &uart0 {

Thanks, this is on fixes -- I figure that given it's just a DT change there's
no reason to delay it.