linux-kernel - Re: [PATCH v6 1/3] dt-bindings: media: stm32-dcmi: Add DCMI min frequency property

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Message-ID: <459a0e53-c8d7-b79b-3004-f0114c99cff5@st.com>
Date:   Tue, 23 Jun 2020 11:48:28 +0000
From:   Benjamin GAIGNARD <benjamin.gaignard@...com>
To:     Hugues FRUCHET <hugues.fruchet@...com>,
        "mchehab@...nel.org" <mchehab@...nel.org>,
        "mcoquelin.stm32@...il.com" <mcoquelin.stm32@...il.com>,
        Alexandre TORGUE <alexandre.torgue@...com>
CC:     "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
        "linux-stm32@...md-mailman.stormreply.com" 
        <linux-stm32@...md-mailman.stormreply.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "vincent.guittot@...aro.org" <vincent.guittot@...aro.org>,
        "valentin.schneider@....com" <valentin.schneider@....com>,
        "rjw@...ysocki.net" <rjw@...ysocki.net>
Subject: Re: [PATCH v6 1/3] dt-bindings: media: stm32-dcmi: Add DCMI min
 frequency property



On 6/10/20 2:24 PM, Benjamin Gaignard wrote:
> Document st,stm32-dcmi-min-frequency property which is used to
> request CPUs minimum frequency when streaming frames.
Gentle for reviewers on this bindings.

Thanks,
Benjamin
>
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...com>
> ---
>   Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml | 8 ++++++++
>   1 file changed, 8 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml b/Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml
> index 3fe778cb5cc3..05ca85a2411a 100644
> --- a/Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml
> +++ b/Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml
> @@ -44,6 +44,13 @@ properties:
>         bindings defined in
>         Documentation/devicetree/bindings/media/video-interfaces.txt.
>   
> +  st,stm32-dcmi-min-frequency:
> +    description: DCMI minimum CPUs frequency requirement (in KHz).
> +    allOf:
> +      - $ref: /schemas/types.yaml#/definitions/uint32
> +      - minimum: 0
> +      - default: 0
> +
>   required:
>     - compatible
>     - reg
> @@ -71,6 +78,7 @@ examples:
>           clock-names = "mclk";
>           dmas = <&dmamux1 75 0x400 0x0d>;
>           dma-names = "tx";
> +        st,stm32-dcmi-min-frequency = <650000>;
>   
>           port {
>                dcmi_0: endpoint {