linux-kernel - Re: [PATCH v6 2/6] [media] ad5820: DT new optional field enable-gpios

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Date:   Tue, 02 Oct 2018 14:29:01 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
Cc:     Pavel Machek <pavel@....cz>, Sakari Ailus <sakari.ailus@....fi>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        Hans Verkuil <hans.verkuil@...co.com>,
        devicetree@...r.kernel.org
Subject: Re: [PATCH v6 2/6] [media] ad5820: DT new optional field enable-gpios

Hi Ricardo,

Thank you for the patch.

On Tuesday, 2 October 2018 14:13:56 EEST Ricardo Ribalda Delgado wrote:
> Document new enable-gpio field. It can be used to disable the part
> without turning down its regulator.
> 
> Cc: devicetree@...r.kernel.org
> Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
> Acked-by: Pavel Machek <pavel@....cz>

Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

> ---
>  Documentation/devicetree/bindings/media/i2c/ad5820.txt | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/media/i2c/ad5820.txt
> b/Documentation/devicetree/bindings/media/i2c/ad5820.txt index
> 5940ca11c021..db596e8eb0ba 100644
> --- a/Documentation/devicetree/bindings/media/i2c/ad5820.txt
> +++ b/Documentation/devicetree/bindings/media/i2c/ad5820.txt
> @@ -8,6 +8,11 @@ Required Properties:
> 
>    - VANA-supply: supply of voltage for VANA pin
> 
> +Optional properties:
> +
> +   - enable-gpios : GPIO spec for the XSHUTDOWN pin. The XSHUTDOWN signal
> is +active low, a high level on the pin enables the device.
> +
>  Example:
> 
>         ad5820: coil@c {
> @@ -15,5 +20,6 @@ Example:
>                 reg = <0x0c>;
> 
>                 VANA-supply = <&vaux4>;
> +               enable-gpios = <&msmgpio 26 GPIO_ACTIVE_HIGH>;
>         };


-- 
Regards,

Laurent Pinchart