linux-kernel - Re: [PATCH v2 3/3] arm64: dts: allwinner: a64: Add pinmux setting for CSI MCLK on PE1

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Date:   Thu, 6 Dec 2018 16:35:32 +0100
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>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-amarula@...rulasolutions.com,
        Michael Trimarchi <michael@...rulasolutions.com>
Subject: Re: [PATCH v2 3/3] arm64: dts: allwinner: a64: Add pinmux setting
 for CSI MCLK on PE1

On Thu, Dec 06, 2018 at 06:53:06PM +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>
> ---
> Changes for v2:
> - new patch
> 
>  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 d7ab0006ebce..902b5238f1dd 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> @@ -538,6 +538,11 @@
>  				function = "csi0";
>  			};
>  
> +			csi_mclk_pin: csi-mclk {
> +				pins = "PE1";
> +				function = "csi0";
> +			};
> +

We're not merging nodes that have no users.

Maxime

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

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