linux-kernel - Re: [PATCH] ARM: dts: sun8i-h2-plus-bananapi-m2-zero: add gpio-poweroff to DT

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Date:   Tue, 24 Nov 2020 14:19:33 +0100
From:   Maxime Ripard <maxime@...no.tech>
To:     Michael Klein <michael@...sekall.de>
Cc:     Rob Herring <robh+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: dts: sun8i-h2-plus-bananapi-m2-zero: add
 gpio-poweroff to DT

On Mon, Nov 23, 2020 at 05:10:41PM +0100, Michael Klein wrote:
> Add gpio-poweroff node to allow the board to power itself off after
> shutdown by disabling the SYSTEM and CPUX regulators (U5 resp. U6).
> The RST button can be used to restart the board.
> 
> Signed-off-by: Michael Klein <michael@...sekall.de>
> ---
>  arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts
> index 4c6704e4c57e..76e79e6db733 100644
> --- a/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts
> +++ b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-m2-zero.dts
> @@ -46,6 +46,11 @@ sw4 {
>  		};
>  	};
>  
> +	gpio_poweroff {

DT nodes are not supposed to have an underscore in their name. The name
should also be the class of the "device", so I guess we can simply use
poweroff here?

Maxime

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