diff options
| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2015-04-28 18:01:45 +0300 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2015-05-25 15:34:12 +0300 |
| commit | 2a57e9b5af2b96c45d8c73d34416e5dfa5dd38d9 (patch) | |
| tree | c10facea26db9c7c7460fc6762c9eb3633fcff69 /drivers/gpu/drm/rcar-du/rcar_du_group.c | |
| parent | 08058611958bc161b1de991b494373b8bce56e6b (diff) | |
| download | linux-2a57e9b5af2b96c45d8c73d34416e5dfa5dd38d9.tar.xz | |
drm: rcar-du: Keep plane to CRTC associations when disabling a plane
Changing the plane to CRTC associations requires restarting the CRTC
group, creating visible flicker. Mitigate the issue by changing plane
association only when a plane becomes enabled, not when it get disabled.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Diffstat (limited to 'drivers/gpu/drm/rcar-du/rcar_du_group.c')
| -rw-r--r-- | drivers/gpu/drm/rcar-du/rcar_du_group.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.c b/drivers/gpu/drm/rcar-du/rcar_du_group.c index 1bdc0ee0c248..7fd39a7d91c8 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_group.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_group.c @@ -85,6 +85,12 @@ static void rcar_du_group_setup(struct rcar_du_group *rgrp) * superposition 0 to DU0 pins. DU1 pins will be configured dynamically. */ rcar_du_group_write(rgrp, DORCR, DORCR_PG1D_DS1 | DORCR_DPRS); + + /* Apply planes to CRTCs association. */ + mutex_lock(&rgrp->lock); + rcar_du_group_write(rgrp, DPTSR, (rgrp->dptsr_planes << 16) | + rgrp->dptsr_planes); + mutex_unlock(&rgrp->lock); } /* |