From mboxrd@z Thu Jan 1 00:00:00 1970 From: Viresh Kumar Subject: Re: [PATCH 07/15] arm: dts: exynos: Add missing cooling device properties for CPUs Date: Thu, 31 May 2018 10:52:34 +0530 Message-ID: <20180531052234.tp6pw45ftsf3g2el@vireshk-i7> References: <20180530043806.ksen4xyh3x3x4fqn@vireshk-i7> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Krzysztof Kozlowski Cc: arm@kernel.org, Rob Herring , Mark Rutland , Kukjin Kim , Vincent Guittot , ionela.voinescu@arm.com, Daniel Lezcano , chris.redpath@arm.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, "linux-samsung-soc@vger.kernel.org" , linux-kernel@vger.kernel.org List-Id: devicetree@vger.kernel.org On 30-05-18, 14:32, Krzysztof Kozlowski wrote: > OK, I see the possibility although it is still far away from use > cases. You cannot hotplug booting CPU (CPU0) on Exynos kernels. It > never worked. Strictly speaking - offlining will work. But bringing it > online will likely hang the system. True and I used the following out of tree patch for a long time for my dual A15 exynos to make hotplug work. https://git.linaro.org/people/vireshk/backup/linux.git/commit/?h=bkp/exynos/hotplug&id=aab8a906a70b8f1fb15a4b7bd2ee27e6dcabf79d -- viresh