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Commit 1510a971 authored by Yuanhan Liu's avatar Yuanhan Liu Committed by Chris Wilson
Browse files

drm/i915/crt: Make sure the hotplug interrupt is enabled 

After disabling the hotplug interrupts for VGA detection on Ironlake, be
sure to re-enable them again afterwards.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=30378


Signed-off-by: default avatarYuanhan Liu <yuanhan.liu@intel.com>
Cc: stable@kernel.org
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
parent 382b0936

drivers/gpu/drm/i915/intel_crt.c

+2 −1
Original line number Diff line number Diff line
@@ -191,7 +191,8 @@ static bool intel_ironlake_crt_detect_hotplug(struct drm_connector *connector) 
		DRM_DEBUG_KMS("timed out waiting for FORCE_TRIGGER");



	if (turn_off_dac) {

		I915_WRITE(PCH_ADPA, temp);

		/* Make sure hotplug is enabled */

		I915_WRITE(PCH_ADPA, temp | ADPA_CRT_HOTPLUG_ENABLE);

		(void)I915_READ(PCH_ADPA);

	}