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[24.155.109.49]) by smtp.gmail.com with ESMTPSA id b21sm1442029ots.30.2020.10.30.12.34.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 30 Oct 2020 12:34:28 -0700 (PDT) Received: (nullmailer pid 913 invoked by uid 1000); Fri, 30 Oct 2020 19:34:27 -0000 Date: Fri, 30 Oct 2020 14:34:27 -0500 From: Rob Herring To: Lukasz Luba Subject: Re: [PATCH 1/4] dt-bindings: opp: Introduce opp-sustainable bindings Message-ID: <20201030193427.GA4186428@bogus> References: <20201028140847.1018-1-lukasz.luba@arm.com> <20201028140847.1018-2-lukasz.luba@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20201028140847.1018-2-lukasz.luba@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201030_153430_571781_EAA772CB X-CRM114-Status: GOOD ( 18.92 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: nm@ti.com, devicetree@vger.kernel.org, daniel.lezcano@linaro.org, linux-pm@vger.kernel.org, sboyd@kernel.org, vireshk@kernel.org, rafael@kernel.org, linux-kernel@vger.kernel.org, sudeep.holla@arm.com, Dietmar.Eggemann@arm.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Oct 28, 2020 at 02:08:44PM +0000, Lukasz Luba wrote: > Add opp-sustainable as an additional property in the OPP node to describe > the sustainable performance level of the device. This will help to > estimate the sustainable performance of the whole system. > > Signed-off-by: Lukasz Luba > --- > Documentation/devicetree/bindings/opp/opp.txt | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/devicetree/bindings/opp/opp.txt b/Documentation/devicetree/bindings/opp/opp.txt > index 9847dfeeffcb..cd01028de305 100644 > --- a/Documentation/devicetree/bindings/opp/opp.txt > +++ b/Documentation/devicetree/bindings/opp/opp.txt > @@ -154,6 +154,10 @@ Optional properties: > - opp-suspend: Marks the OPP to be used during device suspend. If multiple OPPs > in the table have this, the OPP with highest opp-hz will be used. > > +- opp-sustainable: Marks the OPP as sustainable. This property can be used for > + estimating sustainable performance of the whole system. If multiple OPPs in > + the table have this, the OPP with highest opp-hz will be used. > + Isn't this just the inverse of the turbo? or boost? flag we already have? Couldn't this be learned? I ran at this frequency and then overheated. That could be dependent on ambient temperatures or dust build up on fans/heatsink. Rob _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel