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Mon, 19 Aug 2019 09:47:53 -0700 (PDT) Subject: Re: [PATCH v9 15/22] clk: tegra210: Add suspend and resume support To: Sowjanya Komatineni , thierry.reding@gmail.com, jonathanh@nvidia.com, tglx@linutronix.de, jason@lakedaemon.net, marc.zyngier@arm.com, linus.walleij@linaro.org, stefan@agner.ch, mark.rutland@arm.com Cc: pdeschrijver@nvidia.com, pgaikwad@nvidia.com, sboyd@kernel.org, linux-clk@vger.kernel.org, linux-gpio@vger.kernel.org, jckuo@nvidia.com, josephl@nvidia.com, talho@nvidia.com, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, mperttunen@nvidia.com, spatra@nvidia.com, robh+dt@kernel.org, devicetree@vger.kernel.org, rjw@rjwysocki.net, viresh.kumar@linaro.org, linux-pm@vger.kernel.org References: <1565984527-5272-1-git-send-email-skomatineni@nvidia.com> <1565984527-5272-16-git-send-email-skomatineni@nvidia.com> From: Dmitry Osipenko Message-ID: <85b970d7-1a4d-1db4-8d9d-177a7cd4a7c3@gmail.com> Date: Mon, 19 Aug 2019 19:47:50 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: <1565984527-5272-16-git-send-email-skomatineni@nvidia.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 16.08.2019 22:42, Sowjanya Komatineni пишет: > This patch adds support for clk: tegra210: suspend-resume. > > All the CAR controller settings are lost on suspend when core > power goes off. > > This patch has implementation for saving and restoring all PLLs > and clocks context during system suspend and resume to have the > clocks back to same state for normal operation. > > Clock driver suspend and resume are registered as syscore_ops as clocks > restore need to happen before the other drivers resume to have all their > clocks back to the same state as before suspend. > > Signed-off-by: Sowjanya Komatineni Looks good, thanks! Reviewed-by: Dmitry Osipenko