Acked-by: Vincent Abriou <vincent.abriou@xxxxxx>
On 09/15/2016 03:41 PM, Fabien Dessenne wrote:
> Do not rely on plane->status to define whether this is the first update
> but rather check for hqvdp->xp70_initialized bit status.
> This avoids multiple and unwanted calls to sti_vtg_register_client()
> which breaks the kernel scheduler.
>
> Signed-off-by: Fabien Dessenne <fabien.dessenne@xxxxxx>
> ---
> drivers/gpu/drm/sti/sti_hqvdp.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c
> index b5ee783..a222b2e 100644
> --- a/drivers/gpu/drm/sti/sti_hqvdp.c
> +++ b/drivers/gpu/drm/sti/sti_hqvdp.c
> @@ -770,6 +770,7 @@ static void sti_hqvdp_disable(struct sti_hqvdp *hqvdp)
> DRM_ERROR("XP70 could not revert to idle\n");
>
> hqvdp->plane.status = STI_PLANE_DISABLED;
> + hqvdp->xp70_initialized = false;
> }
>
> /**
> @@ -1012,7 +1013,6 @@ static int sti_hqvdp_atomic_check(struct drm_plane *drm_plane,
> struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane);
> struct drm_crtc *crtc = state->crtc;
> struct drm_framebuffer *fb = state->fb;
> - bool first_prepare = plane->status == STI_PLANE_DISABLED ? true : false;
> struct drm_crtc_state *crtc_state;
> struct drm_display_mode *mode;
> int dst_x, dst_y, dst_w, dst_h;
> @@ -1063,7 +1063,7 @@ static int sti_hqvdp_atomic_check(struct drm_plane *drm_plane,
> return -EINVAL;
> }
>
> - if (first_prepare) {
> + if (!hqvdp->xp70_initialized) {
> /* Start HQVDP XP70 coprocessor */
> sti_hqvdp_start_xp70(hqvdp);
>
>
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