Re: [PATCH v14 00/39] NVIDIA Tegra power management patches for 5.17

From: Dmitry Osipenko <digetx@gmail.com>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: "Thierry Reding" <thierry.reding@gmail.com>,
	"Jonathan Hunter" <jonathanh@nvidia.com>,
	"Viresh Kumar" <vireshk@kernel.org>,
	"Stephen Boyd" <sboyd@kernel.org>,
	"Peter De Schrijver" <pdeschrijver@nvidia.com>,
	"Mikko Perttunen" <mperttunen@nvidia.com>,
	"Lee Jones" <lee.jones@linaro.org>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"Nishanth Menon" <nm@ti.com>,
	"Adrian Hunter" <adrian.hunter@intel.com>,
	"Michael Turquette" <mturquette@baylibre.com>,
	linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org,
	linux-pm@vger.kernel.org, linux-pwm@vger.kernel.org,
	linux-mmc@vger.kernel.org, dri-devel@lists.freedesktop.org,
	linux-clk@vger.kernel.org, "David Heidelberg" <david@ixit.cz>
Subject: Re: [PATCH v14 00/39] NVIDIA Tegra power management patches for 5.17
Date: Wed, 27 Oct 2021 22:42:39 +0300	[thread overview]
Message-ID: <98072124-c196-5a5a-7fa6-9c8e465f9878@gmail.com> (raw)
In-Reply-To: <CAPDyKFrA2Jcb5BmaFmajtdUCmpwoPjAAvPC_MhoWwjDXJynD=w@mail.gmail.com>

27.10.2021 19:01, Ulf Hansson пишет:
> On Tue, 26 Oct 2021 at 00:45, Dmitry Osipenko <digetx@gmail.com> wrote:
>>
>> This series adds runtime PM support to Tegra drivers and enables core
>> voltage scaling for Tegra20/30 SoCs, resolving overheating troubles.
>>
>> All patches in this series are interdependent and should go via Tegra tree
>> for simplicity.
>>
>> Changelog:
>>
>> v14: - Fixed missing runtime PM syncing on removal of drivers, which was
>>        spotted by Ulf Hansson in v13.
>>
>>      - clk-device driver now resumes RPM on system suspend instead of
>>        preparing clock which it backs. This was suggested by Ulf Hansson.
>>
>>      - clk-device driver now syncs power domain performance unconditionally
>>        during driver's probe time since GENPD API allows to do this now.
>>        It was spotted by Ulf Hansson.
>>
>>      - Added new "Enable runtime PM during OPP state-syncing" patch, which
>>        allows drivers to sync state at any time. Previously drivers were
>>        obligated to take care of enabling RPM at the "right" time.
>>
>>      - Moved runtime PM initialization/uninitialization of DRM drivers that
>>        use host1x channel to host1x client init/deinit phase. I noticed that
>>        there is UAF problem because RPM-suspend callback waits until channel
>>        is idling and channel is already released/freed during driver's removal
>>        phase.
>>
>>      - Added system suspend support to the new NVDEC DRM driver.
>>
>>      - Added missing pm_runtime_mark_last_busy() to DRM driver.
>>
>>      - Corrected VDE GENPD patch which previously made video decoder clock
>>        always-enabled by mistake if legacy PD code path was used. It was
>>        spotted while we were testing VDE on Tegra114 that doesn't support
>>        GENPD yet.
>>
>>      - Added ack from Peter Chen to the USB patch that he gave to v13.
>>
>>      - Changed OPP table names in accordance to the new naming scheme
>>        required by the recent core OPP binding.
>>
>>      - Added 500MHz memory OPP entry used by ASUS Transformer tablets.
> 
> Besides those minor nitpicks/questions that I have sent for patch1 and
> patch29, the series looks good to me!
> 
> Feel free to add, for the whole series:
> 
> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>

Thank you, Ulf!

I'll wait for more comments and re-spin v15 with minor improvements
around the end of the upcoming merge window.