linux-kernel - Re: [PATCH v3 1/4] thermal/core: Encapsulate the trip point crossed function

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Date:   Mon, 18 Jul 2022 12:58:04 +0800
From:   Zhang Rui <rui.zhang@...el.com>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>, rafael@...nel.org
Cc:     quic_manafm@...cinc.com, amitk@...nel.org, lukasz.luba@....com,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/4] thermal/core: Encapsulate the trip point crossed
 function

On Fri, 2022-07-15 at 23:09 +0200, Daniel Lezcano wrote:
> The routine where the trip point crossed is detected is a strategic
> place where different processing will happen. Encapsulate the code in
> a function, so all specific actions related with a trip point crossed
> can be grouped.
> 
> Reviewed-by: Lukasz Luba <lukasz.luba@....com>
> Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>

Reviewed by: Zhang Rui <rui.zhang@...el.com>

> ---
>  drivers/thermal/thermal_core.c | 30 ++++++++++++++++++++----------
>  1 file changed, 20 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/thermal/thermal_core.c
> b/drivers/thermal/thermal_core.c
> index cdc0552e8c42..d9f771b15ed8 100644
> --- a/drivers/thermal/thermal_core.c
> +++ b/drivers/thermal/thermal_core.c
> @@ -358,6 +358,25 @@ static void handle_critical_trips(struct
> thermal_zone_device *tz,
>                 tz->ops->critical(tz);
>  }
>  
> +static void handle_thermal_trip_crossed(struct thermal_zone_device
> *tz, int trip,
> +                                       int trip_temp, int trip_hyst,
> enum thermal_trip_type trip_type)
> +{
> +       if (tz->last_temperature == THERMAL_TEMP_INVALID)
> +               return;
> +
> +       if (tz->last_temperature < trip_temp &&
> +           tz->temperature >= trip_temp) {
> +               thermal_notify_tz_trip_up(tz->id, trip,
> +                                         tz->temperature);
> +       }
> +
> +       if (tz->last_temperature >= trip_temp &&
> +           tz->temperature < (trip_temp - trip_hyst)) {
> +               thermal_notify_tz_trip_down(tz->id, trip,
> +                                           tz->temperature);
> +       }
> +}
> +
>  static void handle_thermal_trip(struct thermal_zone_device *tz, int
> trip)
>  {
>         enum thermal_trip_type type;
> @@ -372,16 +391,7 @@ static void handle_thermal_trip(struct
> thermal_zone_device *tz, int trip)
>         if (tz->ops->get_trip_hyst)
>                 tz->ops->get_trip_hyst(tz, trip, &hyst);
>  
> -       if (tz->last_temperature != THERMAL_TEMP_INVALID) {
> -               if (tz->last_temperature < trip_temp &&
> -                   tz->temperature >= trip_temp)
> -                       thermal_notify_tz_trip_up(tz->id, trip,
> -                                                 tz->temperature);
> -               if (tz->last_temperature >= trip_temp &&
> -                   tz->temperature < (trip_temp - hyst))
> -                       thermal_notify_tz_trip_down(tz->id, trip,
> -                                                   tz->temperature);
> -       }
> +       handle_thermal_trip_crossed(tz, trip, trip_temp, hyst, type);
>  
>         if (type == THERMAL_TRIP_CRITICAL || type ==
> THERMAL_TRIP_HOT)
>                 handle_critical_trips(tz, trip, type);