From: Mario Limonciello <mario.limonciello@amd.com>
To: K Prateek Nayak <kprateek.nayak@amd.com>
Cc: Perry Yuan <perry.yuan@amd.com>,
"open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)"
<linux-kernel@vger.kernel.org>,
"open list:CPU FREQUENCY SCALING FRAMEWORK"
<linux-pm@vger.kernel.org>, kernel test robot <lkp@intel.com>
Subject: Re: [PATCH] cpufreq/amd-pstate: Add POWER_SUPPLY dependency for dynamic EPP
Date: Tue, 7 Apr 2026 12:09:57 -0500 [thread overview]
Message-ID: <7d907b85-2f57-488a-adea-1a947c7224e0@amd.com> (raw)
In-Reply-To: <50b3313d-aa85-4cb8-801a-e40e3168383a@amd.com>
On 4/7/26 12:08, K Prateek Nayak wrote:
> Hello Mario,
>
> On 4/7/2026 8:24 PM, Mario Limonciello wrote:
>> config X86_AMD_PSTATE_DYNAMIC_EPP
>> bool "AMD Processor P-State dynamic EPP support"
>> - depends on X86_AMD_PSTATE
>> + depends on X86_AMD_PSTATE && POWER_SUPPLY
>
> This config only controls the default selection right? The offending
> power_supply_{reg,unreg}_notifier() isn't guarded behind
> #ifdef CONFIG_X86_AMD_PSTATE_DYNAMIC_EPP so we'll still run into this.
>
> I thing X86_AMD_PSTATE doing a "select POWER_SUPPLY" should cure this.
> Thoughts?
>
Oh that's a really good point, thanks. I'll send another patch as a
follow up.
prev parent reply other threads:[~2026-04-07 17:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-07 14:54 [PATCH] cpufreq/amd-pstate: Add POWER_SUPPLY dependency for dynamic EPP Mario Limonciello
2026-04-07 17:07 ` Rafael J. Wysocki
2026-04-07 17:08 ` K Prateek Nayak
2026-04-07 17:09 ` Mario Limonciello [this message]
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