From: Rajendra Nayak <rnayak@codeaurora.org>
To: Rob Herring <robh@kernel.org>
Cc: stanimir.varbanov@linaro.org, agross@kernel.org,
bjorn.andersson@linaro.org, linux-arm-msm@vger.kernel.org,
linux-media@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, mka@chromium.org
Subject: Re: [PATCH v2] dt-bindings: media: venus: Add an optional power domain for perf voting
Date: Mon, 1 Jun 2020 11:26:11 +0530 [thread overview]
Message-ID: <448cc4c0-0714-dc62-df19-7fa8fba91758@codeaurora.org> (raw)
In-Reply-To: <20200527193638.GA2604206@bogus>
On 5/28/2020 1:06 AM, Rob Herring wrote:
> On Wed, May 13, 2020 at 11:33:27AM +0530, Rajendra Nayak wrote:
>> Add an optional power domain which when specified can be used for
>> setting the performance state of Venus.
>>
>> Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
>> ---
>> Documentation/devicetree/bindings/media/qcom,sc7180-venus.yaml | 6 +++++-
>> Documentation/devicetree/bindings/media/qcom,sdm845-venus-v2.yaml | 6 +++++-
>> 2 files changed, 10 insertions(+), 2 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/media/qcom,sc7180-venus.yaml b/Documentation/devicetree/bindings/media/qcom,sc7180-venus.yaml
>> index 764affa..ac1ed64 100644
>> --- a/Documentation/devicetree/bindings/media/qcom,sc7180-venus.yaml
>> +++ b/Documentation/devicetree/bindings/media/qcom,sc7180-venus.yaml
>> @@ -25,12 +25,16 @@ properties:
>> maxItems: 1
>>
>> power-domains:
>> - maxItems: 2
>> + minItems: 2
>> + maxItems: 3
>>
>> power-domain-names:
>> + minItems: 2
>> + maxItems: 3
>> items:
>> - const: venus
>> - const: vcodec0
>> + - const: opp-pd
>
> Humm, looks suspicious. This is a phyical power island in this block?
yes, this is used to represent the physical 'cx' power island in the SoC
(Its a shared power island, not a power island specific to this block)
that can be scaled to different 'performance levels' based on the frequency
the codec is expected to run at.
> Because that's what 'power-domains' are supposed to represent. Not $os
> pm-domain construct.
>
> Rob
>
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
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next prev parent reply other threads:[~2020-06-01 5:56 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-13 6:03 [PATCH v2] dt-bindings: media: venus: Add an optional power domain for perf voting Rajendra Nayak
2020-05-27 19:36 ` Rob Herring
2020-06-01 5:56 ` Rajendra Nayak [this message]
2020-07-01 11:20 ` Rajendra Nayak
2020-07-09 11:09 ` Rajendra Nayak
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