From: Fabien Dessenne Date: Wed, 24 Aug 2016 10:12:37 +0000 (+0200) Subject: drm/sti: run hqvdp init sequence only once X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9dd5942b3195fc94c538d6cf1d26cde8813da80c;p=linux-beck.git drm/sti: run hqvdp init sequence only once 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 Acked-by: Vincent Abriou --- diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c index 04546ebb75d7..c6b25f4fad6a 100644 --- a/drivers/gpu/drm/sti/sti_hqvdp.c +++ b/drivers/gpu/drm/sti/sti_hqvdp.c @@ -771,6 +771,7 @@ 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; } /** @@ -1013,7 +1014,6 @@ 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; @@ -1064,7 +1064,7 @@ 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);