From: Viresh Kumar <viresh.kumar@linaro.org>
To: Sowjanya Komatineni <skomatineni@nvidia.com>
Cc: 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,
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,
digetx@gmail.com, devicetree@vger.kernel.org, rjw@rjwysocki.net,
linux-pm@vger.kernel.org
Subject: Re: [PATCH v7 11/20] cpufreq: tegra124: Add suspend and resume support
Date: Fri, 2 Aug 2019 09:11:58 +0530 [thread overview]
Message-ID: <20190802034158.gcb7o3o23fe5wtsz@vireshk-i7> (raw)
In-Reply-To: <1564607463-28802-12-git-send-email-skomatineni@nvidia.com>
On 31-07-19, 14:10, Sowjanya Komatineni wrote:
> This patch adds suspend and resume pm ops for cpufreq driver.
>
> PLLP is the safe clock source for CPU during system suspend and
> resume as PLLP rate is below the CPU Fmax at Vmin.
>
> CPUFreq driver suspend switches the CPU clock source to PLLP and
> disables the DFLL clock.
>
> During system resume, warmboot code powers up the CPU with PLLP
> clock source. So CPUFreq driver resume enabled DFLL clock and
> switches CPU back to DFLL clock source.
>
> Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
> ---
> drivers/cpufreq/tegra124-cpufreq.c | 60 ++++++++++++++++++++++++++++++++++++++
> 1 file changed, 60 insertions(+)
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
--
viresh
next prev parent reply other threads:[~2019-08-02 3:42 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-31 21:10 [PATCH v7 00/20] SC7 entry and exit support for Tegra210 Sowjanya Komatineni
2019-07-31 21:10 ` [PATCH v7 01/20] pinctrl: tegra: Add suspend and resume support Sowjanya Komatineni
2019-08-05 9:20 ` Linus Walleij
2019-08-06 21:51 ` Sowjanya Komatineni
2019-08-07 3:40 ` Sowjanya Komatineni
2019-08-07 13:11 ` Linus Walleij
2019-08-05 10:50 ` Dmitry Osipenko
2019-08-05 18:06 ` Sowjanya Komatineni
2019-08-06 17:59 ` Dmitry Osipenko
2019-08-06 21:54 ` Sowjanya Komatineni
2019-07-31 21:10 ` [PATCH v7 02/20] pinctrl: tegra210: Add Tegra210 pinctrl pm ops Sowjanya Komatineni
2019-08-05 9:21 ` Linus Walleij
2019-07-31 21:10 ` [PATCH v7 03/20] clk: tegra: divider: Save and restore divider rate Sowjanya Komatineni
2019-07-31 21:10 ` [PATCH v7 04/20] clk: tegra: pllout: Save and restore pllout context Sowjanya Komatineni
2019-07-31 21:10 ` [PATCH v7 05/20] clk: tegra: pll: Save and restore pll context Sowjanya Komatineni
2019-07-31 21:10 ` [PATCH v7 06/20] clk: tegra: Support for OSC context save and restore Sowjanya Komatineni
2019-07-31 21:10 ` [PATCH v7 07/20] clk: tegra: clk-periph: Add save and restore support Sowjanya Komatineni
2019-07-31 21:10 ` [PATCH v7 08/20] clk: tegra: clk-super: Fix to enable PLLP branches to CPU Sowjanya Komatineni
2019-07-31 21:10 ` [PATCH v7 09/20] clk: tegra: clk-super: Add save and restore support Sowjanya Komatineni
2019-07-31 21:10 ` [PATCH v7 10/20] clk: tegra: clk-dfll: Add suspend and resume support Sowjanya Komatineni
2019-08-01 10:18 ` Dmitry Osipenko
2019-08-01 10:37 ` Dmitry Osipenko
[not found] ` <BYAPR12MB3398C388471BC5811614C8FEC2DE0@BYAPR12MB3398.namprd12.prod.outlook.com>
2019-08-01 17:10 ` Dmitry Osipenko
2019-08-01 17:53 ` Sowjanya Komatineni
2019-07-31 21:10 ` [PATCH v7 11/20] cpufreq: tegra124: " Sowjanya Komatineni
2019-08-01 5:40 ` Viresh Kumar
2019-08-01 17:51 ` Sowjanya Komatineni
2019-08-02 3:41 ` Viresh Kumar [this message]
2019-07-31 21:10 ` [PATCH v7 12/20] clk: tegra210: Use fence_udelay during PLLU init Sowjanya Komatineni
2019-07-31 21:10 ` [PATCH v7 13/20] clk: tegra210: Add suspend and resume support Sowjanya Komatineni
2019-07-31 21:10 ` [PATCH v7 14/20] soc/tegra: pmc: Allow to support more tegras wake Sowjanya Komatineni
2019-07-31 21:10 ` [PATCH v7 15/20] soc/tegra: pmc: Add pmc wake support for tegra210 Sowjanya Komatineni
2019-07-31 21:10 ` [PATCH v7 16/20] arm64: tegra: Enable wake from deep sleep on RTC alarm Sowjanya Komatineni
2019-07-31 21:11 ` [PATCH v7 17/20] soc/tegra: pmc: Configure core power request polarity Sowjanya Komatineni
2019-07-31 21:11 ` [PATCH v7 18/20] soc/tegra: pmc: Configure deep sleep control settings Sowjanya Komatineni
2019-07-31 21:11 ` [PATCH v7 19/20] arm64: dts: tegra210-p2180: Jetson TX1 SC7 timings Sowjanya Komatineni
2019-07-31 21:11 ` [PATCH v7 20/20] arm64: dts: tegra210-p3450: Jetson Nano " Sowjanya Komatineni
-- strict thread matches above, loose matches on Subject: below --
2019-07-31 0:20 [PATCH v7 00/20] SC7 entry and exit support for Tegra210 Sowjanya Komatineni
2019-07-31 0:20 ` [PATCH v7 11/20] cpufreq: tegra124: Add suspend and resume support Sowjanya Komatineni
2019-07-31 10:23 ` Dmitry Osipenko
2019-07-31 11:14 ` Dmitry Osipenko
2019-07-31 21:05 ` Sowjanya Komatineni
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