drm/radeon: call hpd_irq_event on resume

alexdeucher · sashalevin · commit f04d333fc68c · 2016-02-01T11:35:51.000-05:00
[ Upstream commit dbb17a2 ] 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@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1734,6 +1734,7 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)
 	}
 
 	drm_kms_helper_poll_enable(dev);
+	drm_helper_hpd_irq_event(dev);
 
 	/* set the power state here in case we are a PX system or headless */
 	if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled)

Original file line number	Diff line number	Diff line change
`@@ -1734,6 +1734,7 @@ int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon)`
`1734`	`1734`	`}`
`1735`	`1735`
`1736`	`1736`	`drm_kms_helper_poll_enable(dev);`
	`1737`	`+ drm_helper_hpd_irq_event(dev);`
`1737`	`1738`
`1738`	`1739`	`/* set the power state here in case we are a PX system or headless */`
`1739`	`1740`	`if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled)`