linux-kernel - Re: [PATCH 1/2] dt-bindings: iio: sx9324: Add CS idle/sleep mode

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Message-ID: <CAPUE2usLO-sJLP64ZgBrzYBwuZf2tSvKvr9GxcVEiQk7d==OiQ@mail.gmail.com>
Date:   Mon, 2 May 2022 17:50:02 -0700
From:   Gwendal Grignou <gwendal@...omium.org>
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     Jonathan Cameron <jic23@...nel.org>, linux-kernel@...r.kernel.org,
        patches@...ts.linux.dev, devicetree@...r.kernel.org,
        linux-iio@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>
Subject: Re: [PATCH 1/2] dt-bindings: iio: sx9324: Add CS idle/sleep mode

Reviewed-by: Gwendal Grignou <gwendal@...omium.org>

Nit: you may want to add an example.

On Mon, May 2, 2022 at 5:41 PM Stephen Boyd <swboyd@...omium.org> wrote:
>
> We need to configure the sleep and idle mode of the CS pins for this
> device. Add a DT property to do this so pins are in a proper state
> during sleep (either hi-z, grounded, or pulled up to vdd).
>
> Cc: Gwendal Grignou <gwendal@...omium.org>
> Signed-off-by: Stephen Boyd <swboyd@...omium.org>
> ---
>  .../devicetree/bindings/iio/proximity/semtech,sx9324.yaml | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml
> index d265eb5258c8..6cec3481c8b2 100644
> --- a/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml
> +++ b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml
> @@ -126,6 +126,14 @@ properties:
>        UINT_MAX (4294967295) represents infinite. Other values
>        represent 1-1/N.
>
> +  semtech,cs-idle-sleep:
> +    description:
> +      State of CS pins during sleep mode and idle time.
> +    enum:
> +      - hz
> +      - gnd
> +      - vdd
> +
>    semtech,int-comp-resistor:
>      description:
>        Internal resistor setting for compensation.
> --
> https://chromeos.dev
>