[PATCH 3/7] drm/i915: Fix fbdev sprite disable code

[ville.syrjala at linux.intel.com]

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

plane->enabled is never set, so this code didn't do anything.

If we end up doing a full modeset, sprites already get disabled. However
if we end up doing a simple set_base, we still need to turn off the sprites
manually.

And do the same for cursors, since we only want to see the primary plane
for fbdev.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 14 ++++++++++++++
 drivers/gpu/drm/i915/intel_drv.h     |  1 +
 drivers/gpu/drm/i915/intel_fb.c      |  8 ++------
 3 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index cfe2803..cef0bff 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9928,3 +9928,17 @@ intel_display_print_error_state(struct seq_file *m,
 	}
 }
 #endif
+
+void intel_disable_cursors_and_sprites(struct drm_device *dev)
+{
+	struct drm_crtc *crtc;
+	struct drm_plane *plane;
+
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+		intel_crtc_dpms_overlay(to_intel_crtc(crtc), false);
+		intel_crtc_update_cursor(crtc, false);
+	}
+
+	list_for_each_entry(plane, &dev->mode_config.plane_list, head)
+		intel_plane_disable(plane);
+}
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index cd1297e..a4e866a 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -789,5 +789,6 @@ extern bool intel_set_cpu_fifo_underrun_reporting(struct drm_device *dev,
 extern bool intel_set_pch_fifo_underrun_reporting(struct drm_device *dev,
 						 enum transcoder pch_transcoder,
 						 bool enable);
+extern void intel_disable_cursors_and_sprites(struct drm_device *dev);
 
 #endif /* __INTEL_DRV_H__ */
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index a04481f..57a082c 100644
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -281,8 +281,6 @@ void intel_fb_restore_mode(struct drm_device *dev)
 {
 	int ret;
 	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_mode_config *config = &dev->mode_config;
-	struct drm_plane *plane;
 
 	if (INTEL_INFO(dev)->num_pipes == 0)
 		return;
@@ -293,10 +291,8 @@ void intel_fb_restore_mode(struct drm_device *dev)
 	if (ret)
 		DRM_DEBUG("failed to restore crtc mode\n");
 
-	/* Be sure to shut off any planes that may be active */
-	list_for_each_entry(plane, &config->plane_list, head)
-		if (plane->enabled)
-			plane->funcs->disable_plane(plane);
+	/* in case we ended up doing just set_base above */
+	intel_disable_cursors_and_sprites(dev);
 
 	drm_modeset_unlock_all(dev);
 }
-- 
1.8.1.5