drm/i915: sanitize suspend/resume helper function names

By now the S4 freeze/thaw and S3 suspend/resume events are handled the
same way, so we can rename the freeze/thaw internal helpers to
suspend/resume accordingly to make clearer what the helpers do. Also
rename i915_resume_early to i915_drm_resume_early aligning it with the
rest of the helper names.

No functional change.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/i915_drv.c

@@ -554,7 +554,7 @@ static int intel_suspend_complete(struct drm_i915_private *dev_priv);
 static int intel_resume_prepare(struct drm_i915_private *dev_priv,
 				bool rpm_resume);
 
-static int i915_drm_freeze(struct drm_device *dev)
+static int i915_drm_suspend(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_crtc *crtc;
@@ -666,14 +666,14 @@ int i915_suspend(struct drm_device *dev, pm_message_t state)
 	if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
 		return 0;
 
-	error = i915_drm_freeze(dev);
+	error = i915_drm_suspend(dev);
 	if (error)
 		return error;
 
 	return i915_drm_suspend_late(dev);
 }
 
-static int __i915_drm_thaw(struct drm_device *dev)
+static int i915_drm_resume(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 
@@ -741,7 +741,7 @@ static int __i915_drm_thaw(struct drm_device *dev)
 	return 0;
 }
 
-static int i915_resume_early(struct drm_device *dev)
+static int i915_drm_resume_early(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int ret;
@@ -771,19 +771,14 @@ static int i915_resume_early(struct drm_device *dev)
 	return ret;
 }
 
-static int i915_drm_resume(struct drm_device *dev)
-{
-	return __i915_drm_thaw(dev);
-}
-
 static int i915_resume_legacy(struct drm_device *dev)
 {
 	int ret;
 
 	if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
 		return 0;
 
-	ret = i915_resume_early(dev);
+	ret = i915_drm_resume_early(dev);
 	if (ret)
 		return ret;
 
@@ -944,7 +939,7 @@ static int i915_pm_suspend(struct device *dev)
 	if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
 		return 0;
 
-	return i915_drm_freeze(drm_dev);
+	return i915_drm_suspend(drm_dev);
 }
 
 static int i915_pm_suspend_late(struct device *dev)
@@ -975,7 +970,7 @@ static int i915_pm_resume_early(struct device *dev)
 	if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF)
 		return 0;
 
-	return i915_resume_early(drm_dev);
+	return i915_drm_resume_early(drm_dev);
 }
 
 static int i915_pm_resume(struct device *dev)