Commit 61f3c40b authored Nov 19, 2015 by Tomi Valkeinen

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>

parent 3f50effd

drivers/gpu/drm/omapdrm/omap_crtc.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -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));
		}

		/* -----------------------------------------------------------------------------