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([2a01:e0a:106d:1080:79e1:f56b:445c:ca9c]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4891cca5743sm364827355e9.9.2026.04.24.02.53.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 24 Apr 2026 02:53:38 -0700 (PDT) Message-ID: Date: Fri, 24 Apr 2026 11:53:37 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Neil Armstrong Subject: Re: [PATCH v4 8/8] arm64: dts: amlogic: t7: khadas-vim4: Add fan cooling to thermal zones To: linux-kernel-dev@aliel.fr, Guillaume La Roque , "Rafael J. Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kevin Hilman , Jerome Brunet , Martin Blumenstingl Cc: linux-pm@vger.kernel.org, linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org References: <20260423-add-thermal-t7-vim4-v4-0-d4c1528d5044@aliel.fr> <20260423-add-thermal-t7-vim4-v4-8-d4c1528d5044@aliel.fr> Content-Language: en-US, fr Autocrypt: addr=neil.armstrong@linaro.org; keydata= xsBNBE1ZBs8BCAD78xVLsXPwV/2qQx2FaO/7mhWL0Qodw8UcQJnkrWmgTFRobtTWxuRx8WWP GTjuhvbleoQ5Cxjr+v+1ARGCH46MxFP5DwauzPekwJUD5QKZlaw/bURTLmS2id5wWi3lqVH4 BVF2WzvGyyeV1o4RTCYDnZ9VLLylJ9bneEaIs/7cjCEbipGGFlfIML3sfqnIvMAxIMZrvcl9 qPV2k+KQ7q+aXavU5W+yLNn7QtXUB530Zlk/d2ETgzQ5FLYYnUDAaRl+8JUTjc0CNOTpCeik 80TZcE6f8M76Xa6yU8VcNko94Ck7iB4vj70q76P/J7kt98hklrr85/3NU3oti3nrIHmHABEB AAHNKk5laWwgQXJtc3Ryb25nIDxuZWlsLmFybXN0cm9uZ0BsaW5hcm8ub3JnPsLAkQQTAQoA OwIbIwULCQgHAwUVCgkICwUWAgMBAAIeAQIXgBYhBInsPQWERiF0UPIoSBaat7Gkz/iuBQJk Q5wSAhkBAAoJEBaat7Gkz/iuyhMIANiD94qDtUTJRfEW6GwXmtKWwl/mvqQtaTtZID2dos04 YqBbshiJbejgVJjy+HODcNUIKBB3PSLaln4ltdsV73SBcwUNdzebfKspAQunCM22Mn6FBIxQ GizsMLcP/0FX4en9NaKGfK6ZdKK6kN1GR9YffMJd2P08EO8mHowmSRe/ExAODhAs9W7XXExw UNCY4pVJyRPpEhv373vvff60bHxc1k/FF9WaPscMt7hlkbFLUs85kHtQAmr8pV5Hy9ezsSRa GzJmiVclkPc2BY592IGBXRDQ38urXeM4nfhhvqA50b/nAEXc6FzqgXqDkEIwR66/Gbp0t3+r yQzpKRyQif3OwE0ETVkGzwEIALyKDN/OGURaHBVzwjgYq+ZtifvekdrSNl8TIDH8g1xicBYp QTbPn6bbSZbdvfeQPNCcD4/EhXZuhQXMcoJsQQQnO4vwVULmPGgtGf8PVc7dxKOeta+qUh6+ SRh3vIcAUFHDT3f/Zdspz+e2E0hPV2hiSvICLk11qO6cyJE13zeNFoeY3ggrKY+IzbFomIZY 4yG6xI99NIPEVE9lNBXBKIlewIyVlkOaYvJWSV+p5gdJXOvScNN1epm5YHmf9aE2ZjnqZGoM Mtsyw18YoX9BqMFInxqYQQ3j/HpVgTSvmo5ea5qQDDUaCsaTf8UeDcwYOtgI8iL4oHcsGtUX oUk33HEAEQEAAcLAXwQYAQIACQUCTVkGzwIbDAAKCRAWmrexpM/4rrXiB/sGbkQ6itMrAIfn M7IbRuiSZS1unlySUVYu3SD6YBYnNi3G5EpbwfBNuT3H8//rVvtOFK4OD8cRYkxXRQmTvqa3 3eDIHu/zr1HMKErm+2SD6PO9umRef8V82o2oaCLvf4WeIssFjwB0b6a12opuRP7yo3E3gTCS KmbUuLv1CtxKQF+fUV1cVaTPMyT25Od+RC1K+iOR0F54oUJvJeq7fUzbn/KdlhA8XPGzwGRy 4zcsPWvwnXgfe5tk680fEKZVwOZKIEuJC3v+/yZpQzDvGYJvbyix0lHnrCzq43WefRHI5XTT QbM0WUIBIcGmq38+OgUsMYu4NzLu7uZFAcmp6h8g Organization: Linaro In-Reply-To: <20260423-add-thermal-t7-vim4-v4-8-d4c1528d5044@aliel.fr> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260424_025340_885922_5DD129B4 X-CRM114-Status: GOOD ( 13.56 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Neil Armstrong Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 4/23/26 18:07, Ronald Claveau via B4 Relay wrote: > From: Ronald Claveau > > Add an active trip at 50°C to all six thermal zones and map it to the > khadas_mcu fan controller, using cooling states 30 to 100. > > Signed-off-by: Ronald Claveau > --- > .../dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts | 102 +++++++++++++++++++++ > 1 file changed, 102 insertions(+) > > diff --git a/arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts b/arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts > index 5d7f5390f3a66..ba9219073dd0a 100644 > --- a/arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts > +++ b/arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts > @@ -157,6 +157,74 @@ wifi32k: wifi32k { > }; > }; > > +&a53_thermal { > + trips { > + a53_active: a53-active { > + temperature = <50000>; /* millicelsius */ > + hysteresis = <2000>; /* millicelsius */ > + type = "active"; > + }; > + }; > + > + cooling-maps { > + map { > + trip = <&a53_active>; > + cooling-device = <&khadas_mcu 30 100>; > + }; > + }; > +}; > + > +&a73_thermal { > + trips { > + a73_active: a73-active { > + temperature = <50000>; /* millicelsius */ > + hysteresis = <2000>; /* millicelsius */ > + type = "active"; > + }; > + }; > + > + cooling-maps { > + map { > + trip = <&a73_active>; > + cooling-device = <&khadas_mcu 30 100>; > + }; > + }; > +}; > + > +&gpu_thermal { > + trips { > + gpu_active: gpu-active { > + temperature = <50000>; /* millicelsius */ > + hysteresis = <2000>; /* millicelsius */ > + type = "active"; > + }; > + }; > + > + cooling-maps { > + map { > + trip = <&gpu_active>; > + cooling-device = <&khadas_mcu 30 100>; > + }; > + }; > +}; > + > +&hevc_thermal { > + trips { > + hevc_active: hevc-active { > + temperature = <50000>; /* millicelsius */ > + hysteresis = <2000>; /* millicelsius */ > + type = "active"; > + }; > + }; > + > + cooling-maps { > + map { > + trip = <&hevc_active>; > + cooling-device = <&khadas_mcu 30 100>; > + }; > + }; > +}; > + > &i2c_m_ao_a { > status = "okay"; > pinctrl-0 = <&i2c0_ao_d_pins>; > @@ -170,6 +238,23 @@ khadas_mcu: system-controller@18 { > }; > }; > > +&nna_thermal { > + trips { > + nna_active: nna-active { > + temperature = <50000>; /* millicelsius */ > + hysteresis = <2000>; /* millicelsius */ > + type = "active"; > + }; > + }; > + > + cooling-maps { > + map { > + trip = <&nna_active>; > + cooling-device = <&khadas_mcu 30 100>; > + }; > + }; > +}; > + > &pwm_ab { > status = "okay"; > pinctrl-0 = <&pwm_a_pins>; > @@ -266,3 +351,20 @@ &uart_a { > clocks = <&xtal>, <&xtal>, <&xtal>; > clock-names = "xtal", "pclk", "baud"; > }; > + > +&vpu_thermal { > + trips { > + vpu_active: vpu-active { > + temperature = <50000>; /* millicelsius */ > + hysteresis = <2000>; /* millicelsius */ > + type = "active"; > + }; > + }; > + > + cooling-maps { > + map { > + trip = <&vpu_active>; > + cooling-device = <&khadas_mcu 30 100>; > + }; > + }; > +}; > Reviewed-by: Neil Armstrong Thanks, Neil