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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-01-25 11:19:46 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-01-25 11:19:46 +0100
commit0f8b29fabacbcf0e617896c7ea832b7ea2ef2406 (patch)
tree0187f2baef24b5d78d94aecc7057356a36c58b5d /drivers/gpu/drm/drm_plane.c
parente71a8d5cf4b4f274740e31b601216071e2a11afa (diff)
parent6ee1d745b7c9fd573fba142a2efdad76a9f1cb04 (diff)
Merge 5.11-rc5 into tty-next
We need the fixes in here and this resolves a merge issue in drivers/tty/tty_io.c Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/drm_plane.c')
-rw-r--r--drivers/gpu/drm/drm_plane.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c
index e6231947f9872..a0cb746bcb0a9 100644
--- a/drivers/gpu/drm/drm_plane.c
+++ b/drivers/gpu/drm/drm_plane.c
@@ -1163,7 +1163,14 @@ retry:
if (ret)
goto out;
- if (old_fb->format != fb->format) {
+ /*
+ * Only check the FOURCC format code, excluding modifiers. This is
+ * enough for all legacy drivers. Atomic drivers have their own
+ * checks in their ->atomic_check implementation, which will
+ * return -EINVAL if any hw or driver constraint is violated due
+ * to modifier changes.
+ */
+ if (old_fb->format->format != fb->format->format) {
DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
ret = -EINVAL;
goto out;