linux-kernel - Re: [PATCH 3/7] ARM: dts: aspeed: mtjade: Add the gpio-hog

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Date:   Wed, 11 Oct 2023 12:19:44 +1030
From:   Joel Stanley <joel@....id.au>
To:     Chanh Nguyen <chanh@...amperecomputing.com>
Cc:     OpenBMC Maillist <openbmc@...ts.ozlabs.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Andrew Jeffery <andrew@...id.au>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/7] ARM: dts: aspeed: mtjade: Add the gpio-hog

On Thu, 5 Oct 2023 at 14:26, Chanh Nguyen <chanh@...amperecomputing.com> wrote:
>
> Add the GPIOR5 as a gpio-hog with output high so that can
> power the OCP card once the BMC booting.
>
> Add the GPIOAC5 as a gpio-hog with output high to notice
> the BMC state.
>
> Signed-off-by: Chanh Nguyen <chanh@...amperecomputing.com>

Could be two patches as it does two different things, but not worth
re-spinning just for that.

Reviewed-by: Joel Stanley <joel@....id.au>

> ---
>  .../boot/dts/aspeed/aspeed-bmc-ampere-mtjade.dts   | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
>
> diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtjade.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtjade.dts
> index c87be433bdd0..8ab5f301f926 100644
> --- a/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtjade.dts
> +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtjade.dts
> @@ -805,4 +805,18 @@
>                 output-high;
>                 line-name = "i2c4-o-en";
>         };
> +
> +       ocp-aux-pwren-hog {
> +               gpio-hog;
> +               gpios = <ASPEED_GPIO(R, 3) GPIO_ACTIVE_HIGH>;
> +               output-high;
> +               line-name = "ocp-aux-pwren";
> +       };
> +
> +       bmc-ready {
> +               gpio-hog;
> +               gpios = <ASPEED_GPIO(AC, 5) GPIO_ACTIVE_HIGH>;
> +               output-high;
> +               line-name = "bmc-ready";
> +       };
>  };
> --
> 2.17.1
>