[PATCH 3.2 09/87] drm/radeon: call hpd_irq_event on resume

[Ben Hutchings]

3.2.77-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Alex Deucher <alexander.deucher@xxxxxxx>

commit dbb17a21c131eca94eb31136eee9a7fe5aff00d9 upstream.

Need to call this on resume if displays changes during
suspend in order to properly be notified of changes.

Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/radeon/radeon_device.c | 1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -960,6 +960,7 @@ int radeon_resume_kms(struct drm_device
 	}
 
 	drm_kms_helper_poll_enable(dev);
+	drm_helper_hpd_irq_event(dev);
 	return 0;
 }