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From: Rajendra Nayak <rnayak@codeaurora.org>
To: stanimir.varbanov@linaro.org, robh+dt@kernel.org,
	agross@kernel.org, bjorn.andersson@linaro.org
Cc: linux-arm-msm@vger.kernel.org, linux-media@vger.kernel.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	mka@chromium.org, Rajendra Nayak <rnayak@codeaurora.org>
Subject: [PATCH v3 1/4] dt-bindings: media: venus: Add an optional power domain for perf voting
Date: Mon, 20 Jul 2020 12:37:19 +0530	[thread overview]
Message-ID: <1595228842-9826-2-git-send-email-rnayak@codeaurora.org> (raw)
In-Reply-To: <1595228842-9826-1-git-send-email-rnayak@codeaurora.org>

Venus needs to vote for the performance state of a power domain (cx)
to be able to support DVFS. This 'cx' power domain is controlled by
rpmh and is a common power domain (scalable) not specific to
venus alone. This is optional in the sense that, leaving this power
domain out does not really impact the functionality but just makes
the platform a little less power efficient.

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 55f2d67..04e303b 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: cx
 
   clocks:
     maxItems: 5
diff --git a/Documentation/devicetree/bindings/media/qcom,sdm845-venus-v2.yaml b/Documentation/devicetree/bindings/media/qcom,sdm845-venus-v2.yaml
index 157dff8..90013d4 100644
--- a/Documentation/devicetree/bindings/media/qcom,sdm845-venus-v2.yaml
+++ b/Documentation/devicetree/bindings/media/qcom,sdm845-venus-v2.yaml
@@ -25,13 +25,17 @@ properties:
     maxItems: 1
 
   power-domains:
-    maxItems: 3
+    minItems: 3
+    maxItems: 4
 
   power-domain-names:
+    minItems: 3
+    maxItems: 4
     items:
       - const: venus
       - const: vcodec0
       - const: vcodec1
+      - const: cx
 
   clocks:
     maxItems: 7
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation


  reply	other threads:[~2020-07-20  7:07 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-20  7:07 [PATCH v3 0/4] DVFS support for Venus Rajendra Nayak
2020-07-20  7:07 ` Rajendra Nayak [this message]
2020-07-20  7:07 ` [PATCH v3 2/4] media: venus: core: Add support for opp tables/perf voting Rajendra Nayak
2020-07-22  8:27   ` Stanimir Varbanov
2020-07-23 11:37     ` Rajendra Nayak
2020-07-20  7:07 ` [PATCH v3 3/4] arm64: dts: sdm845: Add OPP tables and power-domains for venus Rajendra Nayak
2020-07-20  7:07 ` [PATCH v3 4/4] arm64: dts: sc7180: " Rajendra Nayak

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