From: Rob Herring <robh@kernel.org>
To: Benjamin Gaignard <benjamin.gaignard@st.com>
Cc: hugues.fruchet@st.com, mchehab@kernel.org,
mcoquelin.stm32@gmail.com, alexandre.torgue@st.com,
linux-media@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, vincent.guittot@linaro.org,
valentin.schneider@arm.com, rjw@rjwysocki.net,
devicetree@vger.kernel.org
Subject: Re: [PATCH v7 1/3] dt-bindings: media: stm32-dcmi: Add DCMI min frequency property
Date: Thu, 9 Jul 2020 14:37:18 -0600 [thread overview]
Message-ID: <20200709203718.GA837160@bogus> (raw)
In-Reply-To: <20200701130129.30961-2-benjamin.gaignard@st.com>
On Wed, Jul 01, 2020 at 03:01:27PM +0200, Benjamin Gaignard wrote:
> Document st,stm32-dcmi-min-frequency property which is used to
> request CPUs minimum frequency when streaming frames.
>
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.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
I think this is questionable to be in DT and if it is, it's something
that's hardly specific to ST or this block. IIRC, we already have a way
to specify minimum OPPs.
Rob
next prev parent reply other threads:[~2020-07-09 20:37 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-01 13:01 [PATCH v7 0/3] DCMI set minimum cpufreq requirement Benjamin Gaignard
2020-07-01 13:01 ` [PATCH v7 1/3] dt-bindings: media: stm32-dcmi: Add DCMI min frequency property Benjamin Gaignard
2020-07-09 20:37 ` Rob Herring [this message]
2020-07-10 7:33 ` Benjamin GAIGNARD
2020-07-10 20:01 ` Rob Herring
2020-07-20 9:38 ` Benjamin GAIGNARD
2020-07-01 13:01 ` [PATCH v7 2/3] media: stm32-dcmi: Set minimum cpufreq requirement Benjamin Gaignard
2020-07-01 13:01 ` [PATCH v7 3/3] ARM: dts: stm32: Set DCMI frequency requirement for stm32mp15x Benjamin Gaignard
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