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Commit 30b6f8f6 authored by Rob Clark's avatar Rob Clark
Browse files

drm/msm/mdp: add timeout for irq wait 



Make things recover a bit more gracefully if we get stuck with no vblank
irq ever coming.

Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
parent 93ddb0d3

drivers/gpu/drm/msm/mdp/mdp_kms.c

+2 −1
Original line number Original line Diff line number Diff line
@@ -101,7 +101,8 @@ void mdp_irq_wait(struct mdp_kms *mdp_kms, uint32_t irqmask) 
		.count = 1,

		.count = 1,

	};

	};

	mdp_irq_register(mdp_kms, &wait.irq);

	mdp_irq_register(mdp_kms, &wait.irq);

	wait_event(wait_event, (wait.count <= 0));

	wait_event_timeout(wait_event, (wait.count <= 0),

			msecs_to_jiffies(100));

	mdp_irq_unregister(mdp_kms, &wait.irq);

	mdp_irq_unregister(mdp_kms, &wait.irq);

}

}