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[79.139.233.37]) by smtp.googlemail.com with ESMTPSA id e8sm7884285ljb.45.2020.02.24.08.44.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 24 Feb 2020 08:44:20 -0800 (PST) Subject: Re: [PATCH v9 00/17] Consolidate and improve NVIDIA Tegra CPUIDLE driver(s) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Peter De Schrijver , "Rafael J. Wysocki" , Daniel Lezcano , =?UTF-8?B?TWljaGHFgiBNaXJvc8WCYXc=?= , Jasper Korten , David Heidelberg , Peter Geis Cc: linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org References: <20200212235134.12638-1-digetx@gmail.com> Message-ID: <6fc959d6-8602-5ab0-d624-b410827005cf@gmail.com> Date: Mon, 24 Feb 2020 19:44:19 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.3.0 MIME-Version: 1.0 In-Reply-To: <20200212235134.12638-1-digetx@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org 13.02.2020 02:51, Dmitry Osipenko пишет: > Hello, > > This series does the following: > > 1. Unifies Tegra20/30/114 drivers into a single driver and moves it out > into common drivers/cpuidle/ directory. > > 2. Enables CPU cluster power-down idling state on Tegra30. > > In the end there is a quite nice clean up of the Tegra CPUIDLE drivers > and of the Tegra's arch code in general. Please apply, thanks! > > !!!WARNING!!! This series was made on top of the cpufreq patches [1]. But it > should be fine as long as Thierry Reding would pick up this and > the cpufreq patchsets via the Tegra tree, otherwise there will > one minor merge-conflict. > > [1] https://patchwork.ozlabs.org/project/linux-tegra/list/?series=158206 > > Changelog: > > v9: - Added acks from Peter De Schrijver. > > - Added tested-by from Peter Geis, Jasper Korten and David Heidelberg > who tested these patches on Ouya, TF300T and Nexus 7 devices. > > - Temporarily dropped the "cpuidle: tegra: Support CPU cluster power-down > state on Tegra30" patch because Michał Mirosław reported that it didn't > work well on his TF300T. After some testing we found that changing > a way in which firmware performs L2 cache maintenance helps, but later > on we also found that the current v9 series works just fine without the > extra firmware changes using recent linux-next and the reason why v8 > didn't work before is still unknown (need more testing). So I decided > that it will be better to postpone the dropped patch until we know for > sure that it works well for everyone in every possible configuration. > > - Rebased this series on top of recent linux-next, in a result dropped > the "cpuidle: Avoid NULL dereference in cpuidle_driver_state_disabled()" > patch because it's not needed anymore. I just noticed that this patchset was versioned wrongly, it should've been v10. Sorry for the confusion, next version will be v11.