linux-kernel - Re: [PATCH v5 04/30] thermal/core: Add a generic thermal_zone_get_crit

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Message-ID: <CAJZ5v0j_OcdN3ybT5-Y5G+bH=4COdNWQGD+L5KdLjC-cBPW6Jg@mail.gmail.com>
Date:   Mon, 26 Sep 2022 21:27:59 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux PM <linux-pm@...r.kernel.org>,
        "Zhang, Rui" <rui.zhang@...el.com>,
        Amit Kucheria <amitk@...nel.org>
Subject: Re: [PATCH v5 04/30] thermal/core: Add a generic thermal_zone_get_crit_temp()
 function

On Mon, Sep 26, 2022 at 4:06 PM Daniel Lezcano
<daniel.lezcano@...aro.org> wrote:
>
> The thermal zone ops defines a callback to retrieve the critical
> temperature. As the trip handling is being reworked, all the trip
> points will be the same whatever the driver and consequently finding
> the critical trip temperature will be just a loop to search for a
> critical trip point type.
>
> Provide such a generic function, so we encapsulate the ops
> get_crit_temp() which can be removed when all the backend drivers are
> using the generic trip points handling.
>
> Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
> Reviewed-by: Zhang Rui <rui.zhang@...el.com>
> ---
>  include/linux/thermal.h | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> index 5350a437f245..66373f872237 100644
> --- a/include/linux/thermal.h
> +++ b/include/linux/thermal.h
> @@ -343,6 +343,8 @@ int thermal_zone_set_trip(struct thermal_zone_device *tz, int trip_id,
>
>  int thermal_zone_get_num_trips(struct thermal_zone_device *tz);
>
> +int thermal_zone_get_crit_temp(struct thermal_zone_device *tz, int *temp);
> +

Well, this only adds a function header which by itself is not
particularly useful (and the code change doesn't match the changelog
even), so I would fold it into the patch that actually adds the
function, including its body.

>  #ifdef CONFIG_THERMAL
>  struct thermal_zone_device *thermal_zone_device_register(const char *, int, int,
>                 void *, struct thermal_zone_device_ops *,
> --
> 2.34.1
>