[PATCH 2/2] drm: Perform a full mode set when the pixel format changed

[Laurent Pinchart]

Test whether the pixel format changes in the mode set handler, and
perform a full mode set instead of a mode set base if it does.

Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
 drivers/gpu/drm/drm_crtc_helper.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index 3252e70..0e8cd89 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -609,6 +609,9 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
 		} else if (set->fb->bits_per_pixel !=
 			   set->crtc->fb->bits_per_pixel) {
 			mode_changed = true;
+		} else if (set->fb->pixel_format !=
+			   set->crtc->fb->pixel_format) {
+			mode_changed = true;
 		} else
 			fb_changed = true;
 	}
-- 
1.7.3.4