From: Jon Hunter <jonathanh@nvidia.com>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: webgeek1234@gmail.com, "Rafael J. Wysocki" <rafael@kernel.org>,
Thierry Reding <thierry.reding@gmail.com>,
linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-tegra@vger.kernel.org
Subject: Re: [PATCH v4 1/2] cpufreq: tegra124: Remove use of disable_cpufreq
Date: Thu, 5 Jun 2025 11:34:02 +0100 [thread overview]
Message-ID: <9826e66a-3474-4a00-967d-b7784ff60be4@nvidia.com> (raw)
In-Reply-To: <20250520100218.te5i5ltrx43zjsq6@vireshk-i7>
On 20/05/2025 11:02, Viresh Kumar wrote:
> On 20-05-25, 10:53, Jon Hunter wrote:
>> I understand, but this seems odd. It would be odd that the device may just
>> disappear after resuming from suspend if it fails to resume. I have not seen
>> this done for other drivers that fail to resume. Presumably this is not the
>> only CPU Freq driver that could fail to resume either?
>>
>> It makes the code messy because now we have more than one place where the
>> device could be unregistered.
>
> Fair enough.
>
> This driver, along with other cpufreq drivers, can fail at multiple
> places during suspend/resume (and other operations). If something goes
> wrong, we print an error to inform the user. Should we avoid doing
> anything else (like everyone else) ? i.e. Just remove the call to
> disable_cpufreq(), as all later calls will fail anyway.
I think that would be fine. Given that the tegra124-cpufreq driver is
the parent, if it fails to resume, then I assume that cpufreq-dt driver
would not resume either? Has anyone tested this?
Jon
--
nvpublic
next prev parent reply other threads:[~2025-06-05 10:34 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-09 0:04 [PATCH v4 0/2] Support building tegra124-cpufreq as a module Aaron Kling via B4 Relay
2025-05-09 0:04 ` [PATCH v4 1/2] cpufreq: tegra124: Remove use of disable_cpufreq Aaron Kling via B4 Relay
2025-05-09 11:04 ` Jon Hunter
2025-05-09 16:57 ` Aaron Kling
2025-05-14 16:26 ` Aaron Kling
2025-05-19 10:17 ` Viresh Kumar
2025-05-20 9:53 ` Jon Hunter
2025-05-20 10:02 ` Viresh Kumar
2025-05-28 17:29 ` Aaron Kling
2025-05-29 5:16 ` Viresh Kumar
2025-06-05 10:34 ` Jon Hunter [this message]
2025-06-05 10:51 ` Viresh Kumar
2025-06-30 18:43 ` Aaron Kling
2025-07-01 6:23 ` Viresh Kumar
2025-05-09 0:04 ` [PATCH v4 2/2] cpufreq: tegra124: Allow building as a module Aaron Kling via B4 Relay
2025-05-09 13:37 ` Jon Hunter
2025-05-13 4:26 ` Aaron Kling
2025-05-14 10:31 ` Jon Hunter
2025-05-14 16:43 ` Aaron Kling
2025-05-15 6:41 ` Jon Hunter
2025-05-19 10:37 ` Viresh Kumar
2025-05-20 9:57 ` Jon Hunter
2025-05-20 10:33 ` Viresh Kumar
2025-05-20 15:38 ` Aaron Kling
2025-05-14 10:31 ` Jon Hunter
2025-05-14 16:30 ` Aaron Kling
2025-05-15 6:21 ` Jon Hunter
2025-05-19 10:26 ` Viresh Kumar
2025-05-20 10:03 ` Jon Hunter
2025-05-20 10:30 ` Viresh Kumar
2025-05-20 11:46 ` Jon Hunter
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