ACK [SRU][M:raspi][PATCH] Fix hysteresis support in gov_step_wise.c (#5736)

[Jose Ogando]

LGTM

Acked-by: Jose Ogando <jose.ogando at canonical.com>

On Fri, 2023-11-24 at 19:48 +0100, Juerg Haefliger wrote:
> From: Jürgen Kreileder <jk at blackdown.de>
> 
> BugLink: https://bugs.launchpad.net/bugs/2044341
> 
> Fix hysteresis support in gov_step_wise.c
> 
> Directly get hyst value instead of going through an
> optional and, now, unimplemented function.
> 
> Signed-off-by: Jürgen Kreileder <jk at blackdown.de>
> (cherry picked from commit d3668f4e7e2747f38d7f680df231f02dd33d3a13
> rpi-6.5.y)
> Signed-off-by: Juerg Haefliger <juerg.haefliger at canonical.com>
> ---
>  drivers/thermal/gov_step_wise.c | 7 ++-----
>  1 file changed, 2 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/thermal/gov_step_wise.c
> b/drivers/thermal/gov_step_wise.c
> index eefeb6407d0f..8b83fbb933db 100644
> --- a/drivers/thermal/gov_step_wise.c
> +++ b/drivers/thermal/gov_step_wise.c
> @@ -98,11 +98,8 @@ static void thermal_zone_trip_update(struct
> thermal_zone_device *tz, int trip_id
>                 trace_thermal_zone_trip(tz, trip_id, trip.type);
>         }
>  
> -       hyst_temp = trip_temp = trip.temperature;
> -       if (tz->ops->get_trip_hyst) {
> -               tz->ops->get_trip_hyst(tz, trip_id, &hyst_temp);
> -               hyst_temp = trip_temp - hyst_temp;
> -       }
> +       trip_temp = trip.temperature;
> +       hyst_temp = trip_temp - trip.hysteresis;
>         trip_type = trip.type;
>  
>         dev_dbg(&tz->device,
> -- 
> 2.40.1
> 
>