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[2003:f1:373a:1900:428d:5cff:feb9:9db8]) by smtp.googlemail.com with ESMTPSA id q130sm11151738wme.19.2020.02.22.14.04.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 22 Feb 2020 14:04:45 -0800 (PST) From: Martin Blumenstingl To: yuq825@gmail.com, dri-devel@lists.freedesktop.org Subject: [PATCH RFC v3 1/2] dt-bindings: gpu: mali-utgard: Add the #cooling-cells property Date: Sat, 22 Feb 2020 23:04:31 +0100 Message-Id: <20200222220432.448115-2-martin.blumenstingl@googlemail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200222220432.448115-1-martin.blumenstingl@googlemail.com> References: <20200222220432.448115-1-martin.blumenstingl@googlemail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200222_140448_046013_E25FD2BC X-CRM114-Status: UNSURE ( 8.54 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:343 listed in] [list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider [martin.blumenstingl[at]googlemail.com] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: robh@kernel.org, tomeu.vizoso@collabora.com, linux-pm@vger.kernel.org, airlied@linux.ie, linux-kernel@vger.kernel.org, steven.price@arm.com, linux-rockchip@lists.infradead.org, wens@csie.org, alyssa.rosenzweig@collabora.com, daniel@ffwll.ch, linux-amlogic@lists.infradead.org, Martin Blumenstingl Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.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. Signed-off-by: Martin Blumenstingl --- 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 afde81be3c29..33548ca2a759 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 @@ -162,6 +165,7 @@ examples: clocks = <&ccu 1>, <&ccu 2>; clock-names = "bus", "core"; resets = <&ccu 1>; + #cooling-cells = <2>; }; ...