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Date: Thu, 24 Dec 2020 12:13:39 +0530 From: Viresh Kumar <viresh.kumar@...aro.org> To: Dmitry Osipenko <digetx@...il.com> Cc: Thierry Reding <thierry.reding@...il.com>, Jonathan Hunter <jonathanh@...dia.com>, Mark Brown <broonie@...nel.org>, Liam Girdwood <lgirdwood@...il.com>, Ulf Hansson <ulf.hansson@...aro.org>, Mauro Carvalho Chehab <mchehab@...nel.org>, Rob Herring <robh+dt@...nel.org>, Peter Geis <pgwipeout@...il.com>, Nicolas Chauvet <kwizart@...il.com>, Krzysztof Kozlowski <krzk@...nel.org>, "Rafael J. Wysocki" <rjw@...ysocki.net>, Kevin Hilman <khilman@...nel.org>, Peter De Schrijver <pdeschrijver@...dia.com>, Viresh Kumar <vireshk@...nel.org>, Stephen Boyd <sboyd@...nel.org>, Michael Turquette <mturquette@...libre.com>, devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org, linux-media@...r.kernel.org, linux-tegra@...r.kernel.org, linux-clk@...r.kernel.org Subject: Re: [PATCH v2 11/48] opp: Add dev_pm_opp_find_level_ceil() On 23-12-20, 23:37, Dmitry Osipenko wrote: > 23.12.2020 07:19, Viresh Kumar пишет: > > On 22-12-20, 22:15, Dmitry Osipenko wrote: > >> 22.12.2020 09:42, Viresh Kumar пишет: > >>> On 17-12-20, 21:06, Dmitry Osipenko wrote: > >>>> Add a ceil version of the dev_pm_opp_find_level(). It's handy to have if > >>>> levels don't start from 0 in OPP table and zero usually means a minimal > >>>> level. > >>>> > >>>> Signed-off-by: Dmitry Osipenko <digetx@...il.com> > >>> > >>> Why doesn't the exact version work for you here ? > >>> > >> > >> The exact version won't find OPP for level=0 if levels don't start with > >> 0, where 0 means that minimal level is desired. > > > > Right, but why do you need to send 0 for your platform ? > > > > To put power domain into the lowest performance state when device is idling. I see. So you really want to set it to the lowest state or just take the vote out ? Which may end up powering off the domain in the worst case ? -- viresh
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