From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Hilman Subject: Re: [PATCH 01/10] ARM64: dts: amlogic: Add all CPUs in cooling maps Date: Wed, 28 Nov 2018 16:35:03 -0800 Message-ID: <7hd0qod8lk.fsf@baylibre.com> References: <2778d0d4813cc56be851719846afecbab5f2e657.1542362530.git.viresh.kumar@linaro.org> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <2778d0d4813cc56be851719846afecbab5f2e657.1542362530.git.viresh.kumar@linaro.org> Sender: linux-kernel-owner@vger.kernel.org To: Mark Rutland , Rob Herring , arm@kernel.org, Carlo Caione Cc: Viresh Kumar , devicetree@vger.kernel.org, Vincent Guittot , Daniel Lezcano , linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org List-Id: devicetree@vger.kernel.org Viresh Kumar writes: > Each CPU can (and does) participate in cooling down the system but the > DT only captures a handful of them, normally CPU0, in the cooling maps. > Things work by chance currently as under normal circumstances its the > first CPU of each cluster which is used by the operating systems to > probe the cooling devices. But as soon as this CPU ordering changes and > any other CPU is used to bring up the cooling device, we will start > seeing failures. > > Also the DT is rather incomplete when we list only one CPU in the > cooling maps, as the hardware doesn't have any such limitations. > > Update cooling maps to include all devices affected by individual trip > points. > > Signed-off-by: Viresh Kumar Queued for v4.21, Thanks! Kevin