1 files changed, 55 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index cd3f511847ec..2590a5c90725 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -31,6 +31,7 @@
 #include "../../../platform/x86/intel_ips.h"
 #include <linux/module.h>
 #include <drm/i915_powerwell.h>
+#include <linux/pm_runtime.h>
 
 /**
  * RC6 is a special power stage which allows the GPU to enter an very
@@ -5961,6 +5962,60 @@ void intel_aux_display_runtime_put(struct drm_i915_private *dev_priv)
         hsw_enable_package_c8(dev_priv);
 }
 
+void intel_runtime_pm_get(struct drm_i915_private *dev_priv)
+{
+        struct drm_device *dev = dev_priv->dev;
+        struct device *device = &dev->pdev->dev;
+
+        if (!HAS_RUNTIME_PM(dev))
+                return;
+
+        pm_runtime_get_sync(device);
+        WARN(dev_priv->pm.suspended, "Device still suspended.\n");
+}
+
+void intel_runtime_pm_put(struct drm_i915_private *dev_priv)
+{
+        struct drm_device *dev = dev_priv->dev;
+        struct device *device = &dev->pdev->dev;
+
+        if (!HAS_RUNTIME_PM(dev))
+                return;
+
+        pm_runtime_mark_last_busy(device);
+        pm_runtime_put_autosuspend(device);
+}
+
+void intel_init_runtime_pm(struct drm_i915_private *dev_priv)
+{
+        struct drm_device *dev = dev_priv->dev;
+        struct device *device = &dev->pdev->dev;
+
+        dev_priv->pm.suspended = false;
+
+        if (!HAS_RUNTIME_PM(dev))
+                return;
+
+        pm_runtime_set_active(device);
+
+        pm_runtime_set_autosuspend_delay(device, 10000); /* 10s */
+        pm_runtime_mark_last_busy(device);
+        pm_runtime_use_autosuspend(device);
+}
+
+void intel_fini_runtime_pm(struct drm_i915_private *dev_priv)
+{
+        struct drm_device *dev = dev_priv->dev;
+        struct device *device = &dev->pdev->dev;
+
+        if (!HAS_RUNTIME_PM(dev))
+                return;
+
+        /* Make sure we're not suspended first. */
+        pm_runtime_get_sync(device);
+        pm_runtime_disable(device);
+}
+
 /* Set up chip specific power management-related functions */
 void intel_init_pm(struct drm_device *dev)
 {