linux-kernel - Re: [PATCH 3/5] thermal/drivers/acpi: Use hot and critical ops

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Message-ID: <2b101b07aa18e06a32b26add651a3d2e009e6d18.camel@linux.intel.com>
Date:   Thu, 17 Dec 2020 03:38:08 -0800
From:   Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>, rui.zhang@...el.com
Cc:     kai.heng.feng@...onical.com, lukasz.luba@....com,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        "open list:ACPI THERMAL DRIVER" <linux-acpi@...r.kernel.org>
Subject: Re: [PATCH 3/5] thermal/drivers/acpi: Use hot and critical ops

On Thu, 2020-12-17 at 07:28 +0100, Daniel Lezcano wrote:
> On 10/12/2020 13:15, Daniel Lezcano wrote:
> > The acpi driver wants to do a netlink notification in case of a hot
> > or
> > critical trip point. Implement the corresponding ops to be used for
> > the thermal zone and use them instead of the notify ops.
> > 
> > Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
> 
> Is there any comment on this patch ?

Looks good to me.

Thanks,
Srinivas

> 
> > ---
> >  drivers/acpi/thermal.c | 30 ++++++++++++++----------------
> >  1 file changed, 14 insertions(+), 16 deletions(-)
> > 
> > diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
> > index 12c0ece746f0..b5e4bc9e3282 100644
> > --- a/drivers/acpi/thermal.c
> > +++ b/drivers/acpi/thermal.c
> > @@ -677,27 +677,24 @@ static int thermal_get_trend(struct
> > thermal_zone_device *thermal,
> >         return 0;
> >  }
> >  
> > -
> > -static int thermal_notify(struct thermal_zone_device *thermal, int
> > trip,
> > -                          enum thermal_trip_type trip_type)
> > +static void acpi_thermal_zone_device_hot(struct
> > thermal_zone_device *thermal)
> >  {
> > -       u8 type = 0;
> >         struct acpi_thermal *tz = thermal->devdata;
> >  
> > -       if (trip_type == THERMAL_TRIP_CRITICAL)
> > -               type = ACPI_THERMAL_NOTIFY_CRITICAL;
> > -       else if (trip_type == THERMAL_TRIP_HOT)
> > -               type = ACPI_THERMAL_NOTIFY_HOT;
> > -       else
> > -               return 0;
> > -
> >         acpi_bus_generate_netlink_event(tz->device-
> > >pnp.device_class,
> > -                                       dev_name(&tz->device->dev),
> > type, 1);
> > +                                       dev_name(&tz->device->dev),
> > +                                       ACPI_THERMAL_NOTIFY_HOT,
> > 1);
> > +}
> >  
> > -       if (trip_type == THERMAL_TRIP_CRITICAL && nocrt)
> > -               return 1;
> > +static void acpi_thermal_zone_device_critical(struct
> > thermal_zone_device *thermal)
> > +{
> > +       struct acpi_thermal *tz = thermal->devdata;
> >  
> > -       return 0;
> > +       acpi_bus_generate_netlink_event(tz->device-
> > >pnp.device_class,
> > +                                       dev_name(&tz->device->dev),
> > +                                       ACPI_THERMAL_NOTIFY_CRITICA
> > L, 1);
> > +
> > +       thermal_zone_device_critical(thermal);
> >  }
> >  
> >  static int acpi_thermal_cooling_device_cb(struct
> > thermal_zone_device *thermal,
> > @@ -812,7 +809,8 @@ static struct thermal_zone_device_ops
> > acpi_thermal_zone_ops = {
> >         .get_trip_temp = thermal_get_trip_temp,
> >         .get_crit_temp = thermal_get_crit_temp,
> >         .get_trend = thermal_get_trend,
> > -       .notify = thermal_notify,
> > +       .hot = acpi_thermal_zone_device_hot,
> > +       .critical = acpi_thermal_zone_device_critical,
> >  };
> >  
> >  static int acpi_thermal_register_thermal_zone(struct acpi_thermal
> > *tz)
> > 
> 
>