hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

drm/omap: increase vblank wait timeout 

omap_crtc_wait_pending() waits until the config changes have been taken
into use, usually at next vblank. The wait-timeout used is 50ms, which
usually is enough, but in some rare cases not.

As time wait-timeout is just a safety measure for cases where something
is broken, we can just as well increase the timeout considerably.

This patch makes the timeout 250ms.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
Tomi Valkeinen 2015-11-19 17:31:25 +02:00
parent 3f50effdb8
commit 61f3c40b48
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/omapdrm/omap_crtc.c
View File

@ -80,9 +80,13 @@ int omap_crtc_wait_pending(struct drm_crtc *crtc)
{
struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
/*
* Timeout is set to a "sufficiently" high value, which should cover
* a single frame refresh even on slower displays.
*/
return wait_event_timeout(omap_crtc->pending_wait,
!omap_crtc->pending,
msecs_to_jiffies(50));
msecs_to_jiffies(250));
}
/* -----------------------------------------------------------------------------