[PATCH 08/19] drm/i915/overlay: Extract i915_overlay_reset()

[Ville Syrjala <ville.syrjala@linux.intel.com>]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

overlay->frontbuffer_bits tracking will move to the i915 side
of the parent vs. display driver split, so extract the reset
part of that into a new function (i915_overlay_reset()).

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_overlay.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_overlay.c b/drivers/gpu/drm/i915/display/intel_overlay.c
index 88316c585656..8c1ed540a8e3 100644
--- a/drivers/gpu/drm/i915/display/intel_overlay.c
+++ b/drivers/gpu/drm/i915/display/intel_overlay.c
@@ -496,6 +496,17 @@ static int intel_overlay_release_old_vid(struct intel_overlay *overlay)
 	return i915_active_wait(&overlay->last_flip);
 }
 
+static void i915_overlay_reset(struct drm_device *drm)
+{
+	struct intel_display *display = to_intel_display(drm);
+	struct intel_overlay *overlay = display->overlay;
+
+	if (!overlay)
+		return;
+
+	overlay->frontbuffer_bits = 0;
+}
+
 void intel_overlay_reset(struct intel_display *display)
 {
 	struct intel_overlay *overlay = display->overlay;
@@ -506,7 +517,8 @@ void intel_overlay_reset(struct intel_display *display)
 	overlay->old_xscale = 0;
 	overlay->old_yscale = 0;
 	overlay->crtc = NULL;
-	overlay->frontbuffer_bits = 0;
+
+	i915_overlay_reset(display->drm);
 }
 
 static int packed_depth_bytes(u32 format)
-- 
2.52.0