diff options
| -rw-r--r-- | drivers/gpu/drm/tiny/ofdrm.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tiny/ofdrm.c b/drivers/gpu/drm/tiny/ofdrm.c index 404c83032cec..05a72473cfc6 100644 --- a/drivers/gpu/drm/tiny/ofdrm.c +++ b/drivers/gpu/drm/tiny/ofdrm.c @@ -758,7 +758,11 @@ static const uint64_t ofdrm_primary_plane_format_modifiers[] = { static int ofdrm_primary_plane_helper_atomic_check(struct drm_plane *plane, struct drm_atomic_state *new_state) { + struct drm_device *dev = plane->dev; + struct ofdrm_device *odev = ofdrm_device_of_dev(dev); struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(new_state, plane); + struct drm_shadow_plane_state *new_shadow_plane_state = + to_drm_shadow_plane_state(new_plane_state); struct drm_framebuffer *new_fb = new_plane_state->fb; struct drm_crtc *new_crtc = new_plane_state->crtc; struct drm_crtc_state *new_crtc_state = NULL; @@ -777,6 +781,16 @@ static int ofdrm_primary_plane_helper_atomic_check(struct drm_plane *plane, else if (!new_plane_state->visible) return 0; + if (new_fb->format != odev->format) { + void *buf; + + /* format conversion necessary; reserve buffer */ + buf = drm_format_conv_state_reserve(&new_shadow_plane_state->fmtcnv_state, + odev->pitch, GFP_KERNEL); + if (!buf) + return -ENOMEM; + } + new_crtc_state = drm_atomic_get_new_crtc_state(new_state, new_plane_state->crtc); new_ofdrm_crtc_state = to_ofdrm_crtc_state(new_crtc_state); |