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| author | Paul Kocialkowski <paul.kocialkowski@bootlin.com> | 2018-11-23 10:24:33 +0100 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@bootlin.com> | 2018-11-27 09:30:42 +0100 |
| commit | 686d263856a9d5e1b3f66c7795308af9e8e20d96 (patch) | |
| tree | cbb6adbfb2ad828a658da3922548daa043d979fd /drivers/gpu/drm/sun4i/sun4i_layer.c | |
| parent | a42facc82c3d5841987b8b363a8a5cc564915c3c (diff) | |
| download | lwn-686d263856a9d5e1b3f66c7795308af9e8e20d96.tar.gz lwn-686d263856a9d5e1b3f66c7795308af9e8e20d96.zip | |
drm/sun4i: Cleanup video/YUV source before enabling a layer
This adds a dedicated function for cleaning the video and YUV source
channel layer enable bits. This function is called first on layer atomic
update to make sure that there are no leftover bits from previous
plane configuration that were not cleaned until now.
It fixes issues when alternating between video and YUV planes, where
both bits would be set eventually, leading to broken plane display.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181123092515.2511-2-paul.kocialkowski@bootlin.com
Diffstat (limited to 'drivers/gpu/drm/sun4i/sun4i_layer.c')
| -rw-r--r-- | drivers/gpu/drm/sun4i/sun4i_layer.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_layer.c b/drivers/gpu/drm/sun4i/sun4i_layer.c index 3f51744b6e89..7ba0f5a6f50d 100644 --- a/drivers/gpu/drm/sun4i/sun4i_layer.c +++ b/drivers/gpu/drm/sun4i/sun4i_layer.c @@ -93,6 +93,8 @@ static void sun4i_backend_layer_atomic_update(struct drm_plane *plane, struct sun4i_backend *backend = layer->backend; struct sun4i_frontend *frontend = backend->frontend; + sun4i_backend_cleanup_layer(backend, layer->id); + if (layer_state->uses_frontend) { sun4i_frontend_init(frontend); sun4i_frontend_update_coord(frontend, plane); |