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Date: Fri, 6 Nov 2015 08:54:33 +0530 From: Viresh Kumar <viresh.kumar@...aro.org> To: dawei chien <dawei.chien@...iatek.com>, Javi Merino <javi.merino@....com> Cc: Eduardo Valentin <edubezval@...il.com>, "Rafael J. Wysocki" <rjw@...ysocki.net>, Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>, Mark Rutland <mark.rutland@....com>, Ian Campbell <ijc+devicetree@...lion.org.uk>, Kumar Gala <galak@...eaurora.org>, Matthias Brugger <matthias.bgg@...il.com>, Daniel Kurtz <djkurtz@...omium.org>, Sascha Hauer <s.hauer@...gutronix.de>, Daniel Lezcano <daniel.lezcano@...aro.org>, devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org, linux-mediatek@...ts.infradead.org, srv_heupstream@...iatek.com, Sascha Hauer <kernel@...gutronix.de> Subject: Re: [PATCH v3 1/2] thermal: mediatek: Add cpu power cooling model. Cc'ing Javi (which you should have as he wrote the power-thing for cpu-cooling). On 05-11-15, 19:10, dawei chien wrote: > This is because our platform currently only support mt8173_cpufreq.c, so > that I only add static power model for our owner IC. Bindings are (normally) supposed to be general than a platform specific. > Please understanding that I wouldn't give a DT binding document since I > will remove static power table on next version, but I can try to explain > it. Then just don't add things in the first place. > As far as I know, static power is somewhat leakage of CPU clusters, so > that we hardly to find a formula, which can suitable all kinds of CPUs > since leakage is different. In ARM IPA framework, static power only need > to be defined by who register cpufreq_power_cooling_register. The > voltage/power table is just one way to present leakage power of CPUs. The bindings don't fix the values for static power, but just provides a field for platforms to use. Everyone can then send its own power figures. Why do you thing it can't be generalized? > Actually, static power is optional since dynamic power is much more than > static power. Maybe, we should still capture it. @Javi ? -- viresh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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