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[82.127.142.33]) by smtp.gmail.com with ESMTPSA id 24-20020a05600c22d800b003a6125562e1sm14922731wmg.46.2022.09.06.08.30.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 06 Sep 2022 08:30:39 -0700 (PDT) From: =?utf-8?b?Q2zDqW1lbnQgUMOpcm9u?= To: Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Rob Herring , Krzysztof Kozlowski Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, =?utf-8?b?Q2zDqW1lbnQgUMOpcm9u?= Subject: [PATCH v4 2/5] arm64: dts: allwinner: h6: Add cooling map for GPU Date: Tue, 6 Sep 2022 17:30:31 +0200 Message-Id: <20220906153034.153321-3-peron.clem@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220906153034.153321-1-peron.clem@gmail.com> References: <20220906153034.153321-1-peron.clem@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add a simple cooling map for the GPU. This cooling map come from the vendor kernel 4.9 with a 2°C hysteresis added. Signed-off-by: Clément Péron --- arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 51 +++++++++++++++++++- 1 file changed, 49 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi index 5a28303d3d4c..53f6660656ac 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi @@ -186,6 +186,7 @@ gpu: gpu@1800000 { clocks = <&ccu CLK_GPU>, <&ccu CLK_BUS_GPU>; clock-names = "core", "bus"; resets = <&ccu RST_BUS_GPU>; + #cooling-cells = <2>; status = "disabled"; }; @@ -1072,9 +1073,55 @@ map0 { }; gpu-thermal { - polling-delay-passive = <0>; - polling-delay = <0>; + polling-delay-passive = <1000>; + polling-delay = <2000>; thermal-sensors = <&ths 1>; + + trips { + gpu_alert0: gpu-alert-0 { + temperature = <95000>; + hysteresis = <2000>; + type = "passive"; + }; + + gpu_alert1: gpu-alert-1 { + temperature = <100000>; + hysteresis = <2000>; + type = "passive"; + }; + + gpu_alert2: gpu-alert-2 { + temperature = <105000>; + hysteresis = <2000>; + type = "passive"; + }; + + gpu-crit { + temperature = <115000>; + hysteresis = <0>; + type = "critical"; + }; + }; + + cooling-maps { + // Forbid the GPU to go over 756MHz + map0 { + trip = <&gpu_alert0>; + cooling-device = <&gpu 1 THERMAL_NO_LIMIT>; + }; + + // Forbid the GPU to go over 624MHz + map1 { + trip = <&gpu_alert1>; + cooling-device = <&gpu 2 THERMAL_NO_LIMIT>; + }; + + // Forbid the GPU to go over 576MHz + map2 { + trip = <&gpu_alert2>; + cooling-device = <&gpu 3 THERMAL_NO_LIMIT>; + }; + }; }; }; };