linux-kernel - RE: [PATCH v2 14/14] cpufreq: CPPC: remove the acpi

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Date:   Tue, 12 Jul 2022 04:19:02 +0000
From:   "Yuan, Perry" <Perry.Yuan@....com>
To:     "Fontenot, Nathan" <Nathan.Fontenot@....com>,
        "rafael.j.wysocki@...el.com" <rafael.j.wysocki@...el.com>,
        "viresh.kumar@...aro.org" <viresh.kumar@...aro.org>,
        "Huang, Ray" <Ray.Huang@....com>
CC:     "Sharma, Deepak" <Deepak.Sharma@....com>,
        "Limonciello, Mario" <Mario.Limonciello@....com>,
        "Deucher, Alexander" <Alexander.Deucher@....com>,
        "Su, Jinzhou (Joe)" <Jinzhou.Su@....com>,
        "Huang, Shimmer" <Shimmer.Huang@....com>,
        "Du, Xiaojian" <Xiaojian.Du@....com>,
        "Meng, Li (Jassmine)" <Li.Meng@....com>,
        "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v2 14/14] cpufreq: CPPC: remove the acpi_disabled check

[AMD Official Use Only - General]

Hi  Nathan. 

> -----Original Message-----
> From: Fontenot, Nathan <Nathan.Fontenot@....com>
> Sent: Tuesday, July 12, 2022 3:30 AM
> To: Yuan, Perry <Perry.Yuan@....com>; rafael.j.wysocki@...el.com;
> viresh.kumar@...aro.org; Huang, Ray <Ray.Huang@....com>
> Cc: Sharma, Deepak <Deepak.Sharma@....com>; Limonciello, Mario
> <Mario.Limonciello@....com>; Fontenot, Nathan
> <Nathan.Fontenot@....com>; Deucher, Alexander
> <Alexander.Deucher@....com>; Su, Jinzhou (Joe) <Jinzhou.Su@....com>;
> Huang, Shimmer <Shimmer.Huang@....com>; Du, Xiaojian
> <Xiaojian.Du@....com>; Meng, Li (Jassmine) <Li.Meng@....com>; linux-
> pm@...r.kernel.org; linux-kernel@...r.kernel.org
> Subject: Re: [PATCH v2 14/14] cpufreq: CPPC: remove the acpi_disabled
> check
> 
> On 7/9/22 09:20, Perry Yuan wrote:
> > "acpi_cpc_valid" function already includes the acpi_disabled check and
> > we can remove the duplicated check here
> >
> > Signed-off-by: Perry Yuan <Perry.Yuan@....com>
> > ---
> >  drivers/cpufreq/cppc_cpufreq.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/cpufreq/cppc_cpufreq.c
> > b/drivers/cpufreq/cppc_cpufreq.c index 24eaf0ec344d..9adb7612993e
> > 100644
> > --- a/drivers/cpufreq/cppc_cpufreq.c
> > +++ b/drivers/cpufreq/cppc_cpufreq.c
> > @@ -947,7 +947,7 @@ static int __init cppc_cpufreq_init(void)  {
> >  	int ret;
> >
> > -	if ((acpi_disabled) || !acpi_cpc_valid())
> > +	if (!acpi_cpc_valid())
> 
> Same comment here as for patch 13/14, this change should be part of patch
> 11/14.
> 
> -Nathan

I can do that,  at first, I also want to make the changes in one patch, but I posted this patch to see if maintainers can accept this way or another way. 

Perry.


> 
> >  		return -ENODEV;
> >
> >  	cppc_check_hisi_workaround();