linux-kernel - Re: [PATCH v1 11/26] thermal/drivers/qcom: Use generic thermal_zone_get

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Date:   Sat, 6 Aug 2022 11:56:45 +0530
From:   Amit Kucheria <amitk@...nel.org>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Linux PM list <linux-pm@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Thara Gopinath <thara.gopinath@...aro.org>,
        "open list:ARM/QUALCOMM SUPPORT" <linux-arm-msm@...r.kernel.org>
Subject: Re: [PATCH v1 11/26] thermal/drivers/qcom: Use generic
 thermal_zone_get_trip() function

On Fri, Aug 5, 2022 at 8:28 PM Daniel Lezcano <daniel.lezcano@...aro.org> wrote:
>
> The thermal framework gives the possibility to register the trip
> points with the thermal zone. When that is done, no get_trip_* ops are
> needed and they can be removed.
>
> Convert ops content logic into generic trip points and register them with the
> thermal zone.
>
> Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
Acked-by: Amit Kucheria <amitk@...nel.org>

> ---
>  drivers/thermal/qcom/qcom-spmi-temp-alarm.c | 39 +++++++++------------
>  1 file changed, 17 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/thermal/qcom/qcom-spmi-temp-alarm.c b/drivers/thermal/qcom/qcom-spmi-temp-alarm.c
> index be785ab37e53..127e8c90211c 100644
> --- a/drivers/thermal/qcom/qcom-spmi-temp-alarm.c
> +++ b/drivers/thermal/qcom/qcom-spmi-temp-alarm.c
> @@ -263,17 +263,17 @@ static int qpnp_tm_update_critical_trip_temp(struct qpnp_tm_chip *chip,
>         return qpnp_tm_write(chip, QPNP_TM_REG_SHUTDOWN_CTRL1, reg);
>  }
>
> -static int qpnp_tm_set_trip_temp(struct thermal_zone_device *tz, int trip, int temp)
> +static int qpnp_tm_set_trip_temp(struct thermal_zone_device *tz, int trip_id, int temp)
>  {
>         struct qpnp_tm_chip *chip = tz->devdata;
> -       const struct thermal_trip *trip_points;
> +       struct thermal_trip trip;
>         int ret;
>
> -       trip_points = of_thermal_get_trip_points(chip->tz_dev);
> -       if (!trip_points)
> -               return -EINVAL;
> +       ret = thermal_zone_get_trip(chip->tz_dev, trip_id, &trip);
> +       if (ret)
> +               return ret;
>
> -       if (trip_points[trip].type != THERMAL_TRIP_CRITICAL)
> +       if (trip.type != THERMAL_TRIP_CRITICAL)
>                 return 0;
>
>         mutex_lock(&chip->lock);
> @@ -299,22 +299,17 @@ static irqreturn_t qpnp_tm_isr(int irq, void *data)
>
>  static int qpnp_tm_get_critical_trip_temp(struct qpnp_tm_chip *chip)
>  {
> -       int ntrips;
> -       const struct thermal_trip *trips;
> -       int i;
> -
> -       ntrips = of_thermal_get_ntrips(chip->tz_dev);
> -       if (ntrips <= 0)
> -               return THERMAL_TEMP_INVALID;
> -
> -       trips = of_thermal_get_trip_points(chip->tz_dev);
> -       if (!trips)
> -               return THERMAL_TEMP_INVALID;
> -
> -       for (i = 0; i < ntrips; i++) {
> -               if (of_thermal_is_trip_valid(chip->tz_dev, i) &&
> -                   trips[i].type == THERMAL_TRIP_CRITICAL)
> -                       return trips[i].temperature;
> +       struct thermal_trip trip;
> +       int i, ret;
> +
> +       for (i = 0; i < thermal_zone_get_num_trips(chip->tz_dev); i++) {
> +
> +               ret = thermal_zone_get_trip(chip->tz_dev, i, &trip);
> +               if (ret)
> +                       continue;
> +
> +               if (trip.type == THERMAL_TRIP_CRITICAL)
> +                       return trip.temperature;
>         }
>
>         return THERMAL_TEMP_INVALID;
> --
> 2.25.1
>