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drm/radeon: call hpd_irq_event on resume

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[ Upstream commit dbb17a21c1 ]

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>
This commit is contained in:
Alex Deucher
2015-11-24 14:32:44 -05:00
committed by Sasha Levin
parent f0193949e1
commit f04d333fc6
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/radeon/radeon_device.c
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@@ -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)