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Commit 551402a3 authored by Chris Wilson's avatar Chris Wilson Committed by Dave Airlie
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drm: Fix regression in disable polling e58f637b 



I broke out my trusty i845 and found a new boot failure, which upon
inspection turned out to be a recursion within:

drm_helper_probe_single_connector_modes() -> drm_helper_hpd_irq_event()
-> intel_crt_detect() -> drm_helper_probe_single_connector_modes()

Calling drm_kms_helper_poll_enable() instead performs the desired
re-initialisation of the polling should the user have toggled the
parameter, without the recursive side-effect.

Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 49553c2e

drivers/gpu/drm/drm_crtc_helper.c

+1 −1
Original line number Diff line number Diff line
@@ -104,7 +104,7 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector, 
			connector->funcs->force(connector);

	} else {

		connector->status = connector->funcs->detect(connector);

		drm_helper_hpd_irq_event(dev);

		drm_kms_helper_poll_enable(dev);

	}



	if (connector->status == connector_status_disconnected) {