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Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Amit Kucheria , Thara Gopinath , Bjorn Andersson , Konrad Dybcio , linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org Subject: Re: [PATCH v2 3/3] arm64: dts: qcom: sdm670: add thermal zones and thermal devices Message-ID: References: <20260304014530.27775-1-mailingradian@gmail.com> <20260304014530.27775-4-mailingradian@gmail.com> <55s2gczljwgtk5rihaq6iu6a2osotruyostrhjawwz7xywlumy@7vjt6vb2kkwt> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <55s2gczljwgtk5rihaq6iu6a2osotruyostrhjawwz7xywlumy@7vjt6vb2kkwt> On Wed, Mar 04, 2026 at 03:55:21AM +0200, Dmitry Baryshkov wrote: > On Tue, Mar 03, 2026 at 08:45:30PM -0500, Richard Acayan wrote: > > Add thermal zones to safeguard from overheating to high temperatures, > > along with the thermal sensors (TSENS) and CPU frequency limits (LMh). > > The temperatures are very high, but should still be safeguard for > > devices that do not specify their own thermal zones. > > > > Signed-off-by: Richard Acayan > > --- > > arch/arm64/boot/dts/qcom/sdm670.dtsi | 474 +++++++++++++++++++++++++++ > > 1 file changed, 474 insertions(+) > > > > + > > + mem-thermal { > > + polling-delay-passive = <250>; > > + polling-delay = <1000>; > > + > > + thermal-sensors = <&tsens1 2>; > > + > > + cooling-maps { > > + map0 { > > + trip = <&mem_alert0>; > > + cooling-device = <&cpu6 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, > > + <&cpu7 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; > > Why is it only cpu6 & 7? They are supposed to have the highest available power consumption (implying highest TDP). > Note, SDM845 doesn't have any cooling maps for > mem-thermal. Makes sense, the cooling can be removed.