[PATCH 2/2] drm/i915/gvt: Add GVT suspend/resume routine to i915.

[Colin Xu]

Add GVT suspend/resume routine to i915.
GVT relies on i915 so suspend ahead of other i915 routine, and resume
at last vice versa.

Signed-off-by: Hang Yuan <hang.yuan at linux.intel.com>
Signed-off-by: Colin Xu <colin.xu at intel.com>
---
 drivers/gpu/drm/i915/i915_drv.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 34ee12f3f02d..c5d7d58df67e 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -87,6 +87,10 @@
 #include "intel_pm.h"
 #include "vlv_suspend.h"
 
+#if IS_ENABLED(CONFIG_DRM_I915_GVT)
+#include "gvt.h"
+#endif
+
 static struct drm_driver driver;
 
 static int i915_get_bridge_dev(struct drm_i915_private *dev_priv)
@@ -1177,6 +1181,11 @@ static int i915_drm_suspend(struct drm_device *dev)
 
 	drm_kms_helper_poll_disable(dev);
 
+#if IS_ENABLED(CONFIG_DRM_I915_GVT)
+	if (dev_priv->gvt)
+		intel_gvt_pm_suspend(dev_priv->gvt);
+#endif
+
 	pci_save_state(pdev);
 
 	intel_display_suspend(dev);
@@ -1354,6 +1363,12 @@ static int i915_drm_resume(struct drm_device *dev)
 
 	intel_power_domains_enable(dev_priv);
 
+#if IS_ENABLED(CONFIG_DRM_I915_GVT)
+	if (dev_priv->gvt) {
+		return intel_gvt_pm_resume(dev_priv->gvt);
+	}
+#endif
+
 	enable_rpm_wakeref_asserts(&dev_priv->runtime_pm);
 
 	return 0;
-- 
2.26.2