linux-kernel - Re: [PATCH v4 5/6] cpufreq: amd_pstate: Add guided mode control support via sysfs

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Date:   Fri, 3 Feb 2023 08:36:01 +0000
From:   Wyes Karny <wyes.karny@....com>
To:     Russell Haley <yumpusamongus@...il.com>
Cc:     Rafael J Wysocki <rafael@...nel.org>,
        Huang Rui <ray.huang@....com>,
        Jonathan Corbet <corbet@....net>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Mario.Limonciello@....com, Perry.Yuan@....com,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, Bagas Sanjaya <bagasdotme@...il.com>,
        santosh.shukla@....com, Len Brown <lenb@...nel.org>,
        Robert Moore <robert.moore@...el.com>,
        Borislav Petkov <bp@...en8.de>,
        Ananth Narayan <ananth.narayan@....com>,
        gautham.shenoy@....com, Tor Vic <torvic9@...lbox.org>
Subject: Re: [PATCH v4 5/6] cpufreq: amd_pstate: Add guided mode control
 support via sysfs

Hi Russell,

On 02 Feb 01:41, Russell Haley wrote:
> 
> 
> On 1/30/23 23:21, Wyes Karny wrote:
> 
> > Only if the state requested matches
> > with the current state then -EBUSY value is returned.
> 
> This differs from the behavior of intel_pstate, where writing the
> current state to the status file always succeeds.
> 
> Why not do the same thing here?

Make sense. Will change this to return 0.
Thanks for reviewing.

Thanks,
Wyes