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 --- drivers/gpu/drm/omapdrm/omap_crtc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c index f5b19d18fa8b..f1cd2800055b 100644 --- a/drivers/gpu/drm/omapdrm/omap_crtc.c +++ b/drivers/gpu/drm/omapdrm/omap_crtc.c @@ -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)); }
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