linux-kernel - Re: [PATCH v1 1/2] platform/x86: oxpec: Fix turbo register for G1 AMD

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Message-ID: 
 <CAGwozwFvWuXM_oSzY9S+2CdW+dHiusuYra6kJeA+Vo00NZFb4g@mail.gmail.com>
Date: Tue, 22 Jul 2025 15:27:53 +0200
From: Antheas Kapenekakis <lkml@...heas.dev>
To: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Cc: platform-driver-x86@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	Derek John Clark <derekjohn.clark@...il.com>,
	Joaquín Ignacio Aramendía <samsagax@...il.com>,
	Hans de Goede <hdegoede@...hat.com>, Eileen <eileen@...-netbook.com>
Subject: Re: [PATCH v1 1/2] platform/x86: oxpec: Fix turbo register for G1 AMD

On Tue, 22 Jul 2025 at 15:22, Ilpo Järvinen
<ilpo.jarvinen@...ux.intel.com> wrote:
>
> On Fri, 18 Jul 2025, Antheas Kapenekakis wrote:
>
> > Turns out that the AMD variant of the G1 uses different turbo registers
> > than the Intel variant. Differentiate them and apply the correct ones
> > to the AMD variant.
> >
> > Fixes: b369395c895b ("platform/x86: oxpec: Add support for the OneXPlayer G1")
> > Signed-off-by: Antheas Kapenekakis <lkml@...heas.dev>
> > ---
> >  drivers/platform/x86/oxpec.c | 37 +++++++++++++++++++++++-------------
> >  1 file changed, 24 insertions(+), 13 deletions(-)
> >
> > diff --git a/drivers/platform/x86/oxpec.c b/drivers/platform/x86/oxpec.c
> > index 06759036945d..9839e8cb82ce 100644
> > --- a/drivers/platform/x86/oxpec.c
> > +++ b/drivers/platform/x86/oxpec.c
> > @@ -58,7 +58,8 @@ enum oxp_board {
> >       oxp_mini_amd_a07,
> >       oxp_mini_amd_pro,
> >       oxp_x1,
> > -     oxp_g1,
> > +     oxp_g1_i,
> > +     oxp_g1_a,
> >  };
> >
> >  static enum oxp_board board;
> > @@ -247,14 +248,14 @@ static const struct dmi_system_id dmi_table[] = {
> >                       DMI_MATCH(DMI_BOARD_VENDOR, "ONE-NETBOOK"),
> >                       DMI_EXACT_MATCH(DMI_BOARD_NAME, "ONEXPLAYER G1 A"),
> >               },
> > -             .driver_data = (void *)oxp_g1,
> > +             .driver_data = (void *)oxp_g1_a,
> >       },
> >       {
> >               .matches = {
> >                       DMI_MATCH(DMI_BOARD_VENDOR, "ONE-NETBOOK"),
> >                       DMI_EXACT_MATCH(DMI_BOARD_NAME, "ONEXPLAYER G1 i"),
> >               },
> > -             .driver_data = (void *)oxp_g1,
> > +             .driver_data = (void *)oxp_g1_i,
> >       },
> >       {
> >               .matches = {
>
>
> > -     case oxp_g1:
> > +     case oxp_g1_i:
> >               return read_from_ec(OXP_2_SENSOR_FAN_REG, 2, val);
> > @@ -757,6 +765,7 @@ static int oxp_pwm_fan_speed(long *val)
> > +     case oxp_g1_a:
> >               return read_from_ec(OXP_SENSOR_FAN_REG, 2, val);
>
> > -     case oxp_g1:
> > +     case oxp_g1_i:
> >               /* scale to range [0-184] */
> >               val = (val * 184) / 255;
> >               return write_to_ec(OXP_SENSOR_PWM_REG, val);
> > @@ -796,6 +805,7 @@ static int oxp_pwm_input_write(long val)
> > +     case oxp_g1_a:
> >               return write_to_ec(OXP_SENSOR_PWM_REG, val);
> > @@ -816,7 +826,7 @@ static int oxp_pwm_input_read(long *val)
> > -     case oxp_g1:
> > +     case oxp_g1_i:
> >               ret = read_from_ec(OXP_SENSOR_PWM_REG, 1, val);
> > @@ -842,6 +852,7 @@ static int oxp_pwm_input_read(long *val)
> > +     case oxp_g1_a:
> >       default:
> >               ret = read_from_ec(OXP_SENSOR_PWM_REG, 1, val);
>
> Do these FAN and PWM registers fall under what is described in the
> changelog as "turbo registers"? Or did you extend the scope of this patch
> and forgot to update the changelog?

Yes. Perhaps its not the best wording and it should have said EC registers.

Antheas

>
> --
>  i.
>
>