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[2003:f1:3710:ed00:428d:5cff:feb9:9db8]) by smtp.googlemail.com with ESMTPSA id z11sm7781992wrv.58.2020.04.11.09.57.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 11 Apr 2020 09:57:25 -0700 (PDT) From: Martin Blumenstingl To: robh+dt@kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-amlogic@lists.infradead.org, Martin Blumenstingl , Qiang Yu Subject: [PATCH v5] dt-bindings: gpu: mali-utgard: Add the #cooling-cells property Date: Sat, 11 Apr 2020 18:57:00 +0200 Message-Id: <20200411165700.1576314-1-martin.blumenstingl@googlemail.com> X-Mailer: git-send-email 2.26.0 MIME-Version: 1.0 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org The GPU can be one of the big heat sources on a SoC. Allow the "#cooling-cells" property to be specified for ARM Mali Utgard GPUs so the GPU clock speeds (and voltages) can be reduced to prevent a SoC from overheating. Reviewed-by: Qiang Yu Signed-off-by: Martin Blumenstingl --- Changes since v4 at [0]: - Added Qiang's Reviewed-by (many thanks) - re-send because I missed the devicetree mailing list in v4 [0] https://patchwork.kernel.org/patch/11448013/ Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml index f5401cc8de4a..4869258daadb 100644 --- a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml +++ b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml @@ -107,6 +107,9 @@ properties: operating-points-v2: true + "#cooling-cells": + const: 2 + required: - compatible - reg @@ -164,6 +167,7 @@ examples: clocks = <&ccu 1>, <&ccu 2>; clock-names = "bus", "core"; resets = <&ccu 1>; + #cooling-cells = <2>; }; ...