drm: rcar-du: Revert "drm: rcar-du: Use __drm_atomic_helper_plane_reset instead of copying the logic"
Commit: 161ad653d6c9 ("drm: rcar-du: Use __drm_atomic_helper_plane_reset
instead of copying the logic") causes a regression in the R-Car DU
display driver, and prevents any output from being displayed.
The display appears to function correctly but only a black screen is
ever visible.
Revert the commit.
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
---
Looking through the code, the reason for this issue isn't particularly
obvious - and will need some further exploration, which I can't do look
at until Tuesday. So I'm posting this revert patch to
A) Report the issue
B) Provide a temporary fix
I suspect either the initial alpha value is not set correctly or setting
state->pixel_blend_mode = DRM_MODE_BLEND_PREMULTI;
causes some side effect perhaps. There's not much else that could be
different between the helper, and the original code.
2 files changed
