linux-kernel - Re: [PATCH v1 08/18] thermal: intel: pch_thermal: Migrate to thermal_zone_device

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Date: Thu, 1 Feb 2024 20:51:56 +0100
From: "Rafael J. Wysocki" <rafael@...nel.org>
To: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: daniel.lezcano@...aro.org, miquel.raynal@...tlin.com, rafael@...nel.org, 
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Subject: Re: [PATCH v1 08/18] thermal: intel: pch_thermal: Migrate to thermal_zone_device_register()

On Tue, Jan 30, 2024 at 12:13 PM AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com> wrote:
>
> The thermal API has a new thermal_zone_device_register() function which
> is deprecating the older thermal_zone_device_register_with_trips() and
> thermal_tripless_zone_device_register().
>
> Migrate to the new thermal zone device registration function.
>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> ---
>  drivers/thermal/intel/intel_pch_thermal.c | 12 ++++++++----
>  1 file changed, 8 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/thermal/intel/intel_pch_thermal.c b/drivers/thermal/intel/intel_pch_thermal.c
> index b3905e34c507..73d7c2ac7dbc 100644
> --- a/drivers/thermal/intel/intel_pch_thermal.c
> +++ b/drivers/thermal/intel/intel_pch_thermal.c
> @@ -160,6 +160,7 @@ static int intel_pch_thermal_probe(struct pci_dev *pdev,
>                                    const struct pci_device_id *id)
>  {
>         enum pch_board_ids board_id = id->driver_data;
> +       struct thermal_zone_device_params tzdp;
>         struct pch_thermal_device *ptd;
>         int nr_trips = 0;
>         u16 trip_temp;
> @@ -233,10 +234,13 @@ static int intel_pch_thermal_probe(struct pci_dev *pdev,
>
>         nr_trips += pch_wpt_add_acpi_psv_trip(ptd, nr_trips);
>
> -       ptd->tzd = thermal_zone_device_register_with_trips(board_names[board_id],
> -                                                          ptd->trips, nr_trips,
> -                                                          0, ptd, &tzd_ops,
> -                                                          NULL, 0, 0);
> +       tzdp.tzp.type = board_names[board_id];
> +       tzdp.tzp.devdata = ptd;
> +       tzdp.tzp.trips = ptd->trips;
> +       tzdp.tzp.num_trips = nr_trips;
> +       tzdp.tzp.ops = &tzd_ops;
> +
> +       ptd->tzd = thermal_zone_device_register(&tzdp);

IMV, this should be

ptd->tzd = thermal_zone_device_register(board_names[board_id],
ptd->trips, nr_trips, &tzd_ops, ptd, NULL);

and the tzdp variable is not necessary even.

Analogously in the rest of the series (ie. patches [4-18/18]).

>         if (IS_ERR(ptd->tzd)) {
>                 dev_err(&pdev->dev, "Failed to register thermal zone %s\n",
>                         board_names[board_id]);
> --