linux-kernel - Re: [PATCH 1/2] arm64: dts: allwinner: a64: Add pinmux setting for CSI MCLK on PE1

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Message-ID: <20190418112049.mgvvvcwzf3ezg4pw@flea>
Date:   Thu, 18 Apr 2019 13:20:49 +0200
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Jagan Teki <jagan@...rulasolutions.com>
Cc:     Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Michael Trimarchi <michael@...rulasolutions.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-amarula@...rulasolutions.com
Subject: Re: [PATCH 1/2] arm64: dts: allwinner: a64: Add pinmux setting for
 CSI MCLK on PE1

On Thu, Apr 18, 2019 at 02:08:12PM +0530, Jagan Teki wrote:
> Some camera modules have the SoC feeding a master clock to the sensor
> instead of having a standalone crystal. This clock signal is generated
> from the clock control unit and output from the CSI MCLK function of
> pin PE1.
>
> Add a pinmux setting for it for camera sensors to reference.
>
> Signed-off-by: Jagan Teki <jagan@...rulasolutions.com>
> ---
>  arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> index 6f27eb082429..6f4e00ec9c68 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> @@ -597,6 +597,11 @@
>  				function = "csi";
>  			};
>
> +			csi_mclk_pin: csi-mclk {

The name of the pin should be ending with -pin, and please add
/omit-if-no-ref/

Thanks!
Maxime

--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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