linux-kernel - Re: [PATCH] ARM: dts: stm32: set the DCMI pins on stm32mp157c-odyssey

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Date:   Thu, 26 Aug 2021 16:50:17 +0200
From:   Ahmad Fatoum <a.fatoum@...gutronix.de>
To:     Grzegorz Szymaszek <gszymaszek@...rt.pl>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Marcin Sloniewski <marcin.sloniewski@...il.com>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com
Subject: Re: [PATCH] ARM: dts: stm32: set the DCMI pins on stm32mp157c-odyssey

On 26.08.21 16:45, Grzegorz Szymaszek wrote:
> The Seeed Odyssey-STM32MP157C board has a 20-pin DVP camera output. The
> DCMI pins used on this output are defined in the pin state definition
> &pinctrl/dcmi-1, AKA &dcmi_pins_b (added in mainline commit
> 02814a41529a55dbfb9fbb2a3728e78e70646ea6). Set these pins as the default
> pinctrl of the DCMI peripheral in the board device tree.
> 
> The pins are not used for any other purpose, so it seems safe to assume
> most users will not need to override (delete) what this patch provides.
> status defaults to "disabled", so the peripheral will not be
> unnecessarily started. And the users who actually intend to make use of
> a camera on the DVP port will have this little part of the configuration
> ready.
> 
> Signed-off-by: Grzegorz Szymaszek <gszymaszek@...rt.pl>

Reviewed-by: Ahmad Fatoum <a.fatoum@...gutronix.de>

> ---
>  arch/arm/boot/dts/stm32mp157c-odyssey.dts | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/stm32mp157c-odyssey.dts b/arch/arm/boot/dts/stm32mp157c-odyssey.dts
> index be1dd5e9e744..554f5d3bcdc3 100644
> --- a/arch/arm/boot/dts/stm32mp157c-odyssey.dts
> +++ b/arch/arm/boot/dts/stm32mp157c-odyssey.dts
> @@ -22,6 +22,12 @@ chosen {
>  	};
>  };
>  
> +&dcmi {
> +	pinctrl-names = "default", "sleep";
> +	pinctrl-0 = <&dcmi_pins_b>;
> +	pinctrl-1 = <&dcmi_sleep_pins_b>;
> +};
> +
>  &ethernet0 {
>  	status = "okay";
>  	pinctrl-0 = <&ethernet0_rgmii_pins_a>;
> 


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