[Lima] [PATCH] drm/lima: fix wait pp reset timeout

[Erico Nunes]

On Sun, Jul 19, 2020 at 9:31 AM Qiang Yu <yuq825 at gmail.com> wrote:
>
> PP bcast is marked as doing async reset after job is done.
> When resume after suspend, each PP is reset individually,
> so no need to reset in PP bcast resume. But I forgot to
> clear the PP bcast async reset mark so call into async wait
> before job run and gets timeout.
>
> Fixes: 3446d7e9883d ("drm/lima: add resume/suspend callback for each ip")
> Signed-off-by: Qiang Yu <yuq825 at gmail.com>
> ---
>  drivers/gpu/drm/lima/lima_pp.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/lima/lima_pp.c b/drivers/gpu/drm/lima/lima_pp.c
> index 33f01383409c..a5c95bed08c0 100644
> --- a/drivers/gpu/drm/lima/lima_pp.c
> +++ b/drivers/gpu/drm/lima/lima_pp.c
> @@ -271,6 +271,8 @@ void lima_pp_fini(struct lima_ip *ip)
>
>  int lima_pp_bcast_resume(struct lima_ip *ip)
>  {
> +       /* PP has been reset by individual PP resume */
> +       ip->data.async_reset = false;
>         return 0;
>  }
>
> --

Reviewed-by: Erico Nunes <nunes.erico at gmail.com>

This fixes the issue reported at
https://gitlab.freedesktop.org/lima/linux/-/issues/34 .