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@st.com --- 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);