From 8f63865011432299b2306837ec95f627fd41130c Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Fri, 24 Jun 2011 12:19:26 -0700 Subject: drm: bpp and depth changes require full mode sets To properly drive a framebuffer with a new depth or bpp, dither settings and link bandwidth calculations may change, so make sure we go through a full mode set in that case. Reported-by: Chris Wilson Signed-off-by: Jesse Barnes Reviewed-by: Chris Wilson Signed-off-by: Keith Packard Signed-off-by: Eugeni Dodonov --- drivers/gpu/drm/drm_crtc_helper.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index 9de957af4b2..8215815bf87 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -592,6 +592,11 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set) mode_changed = true; } else if (set->fb == NULL) { mode_changed = true; + } else if (set->fb->depth != set->crtc->fb->depth) { + mode_changed = true; + } else if (set->fb->bits_per_pixel != + set->crtc->fb->bits_per_pixel) { + mode_changed = true; } else fb_changed = true; } -- cgit v1.2.3