drm/exynos: added crtc dpms for disable crtc

crtc dpms is called as destroying attached fb so dpms off sould be processed.
crtc dpms also can be called after crtc is detached from encoder so pipe value
of manager is used to find display controller for this case

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>

1 files changed, 47 insertions, 7 deletions

diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
index 0034fa7..f15da95 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
@@ -61,6 +61,8 @@ static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
 			struct exynos_drm_display_ops *display_ops =
 							manager->display_ops;
 
+			DRM_DEBUG_KMS("connector[%d] dpms[%d]\n",
+					connector->base.id, mode);
 			if (display_ops && display_ops->power_on)
 				display_ops->power_on(manager->dev, mode);
 		}
@@ -117,15 +119,11 @@ static void exynos_drm_encoder_commit(struct drm_encoder *encoder)
 {
 	struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder);
 	struct exynos_drm_manager_ops *manager_ops = manager->ops;
-	struct exynos_drm_overlay_ops *overlay_ops = manager->overlay_ops;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
 	if (manager_ops && manager_ops->commit)
 		manager_ops->commit(manager->dev);
-
-	if (overlay_ops && overlay_ops->commit)
-		overlay_ops->commit(manager->dev);
 }
 
 static struct drm_crtc *
@@ -209,10 +207,23 @@ void exynos_drm_fn_encoder(struct drm_crtc *crtc, void *data,
 {
 	struct drm_device *dev = crtc->dev;
 	struct drm_encoder *encoder;
+	struct exynos_drm_private *private = dev->dev_private;
+	struct exynos_drm_manager *manager;
 
 	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
-		if (encoder->crtc != crtc)
-			continue;
+		/*
+		 * if crtc is detached from encoder, check pipe,
+		 * otherwise check crtc attached to encoder
+		 */
+		if (!encoder->crtc) {
+			manager = to_exynos_encoder(encoder)->manager;
+			if (manager->pipe < 0 ||
+					private->crtc[manager->pipe] != crtc)
+				continue;
+		} else {
+			if (encoder->crtc != crtc)
+				continue;
+		}
 
 		fn(encoder, data);
 	}
@@ -251,8 +262,18 @@ void exynos_drm_encoder_crtc_commit(struct drm_encoder *encoder, void *data)
 	struct exynos_drm_manager *manager =
 		to_exynos_encoder(encoder)->manager;
 	struct exynos_drm_overlay_ops *overlay_ops = manager->overlay_ops;
+	int crtc = *(int *)data;
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
 
-	overlay_ops->commit(manager->dev);
+	/*
+	 * when crtc is detached from encoder, this pipe is used
+	 * to select manager operation
+	 */
+	manager->pipe = crtc;
+
+	if (overlay_ops && overlay_ops->commit)
+		overlay_ops->commit(manager->dev);
 }
 
 void exynos_drm_encoder_crtc_mode_set(struct drm_encoder *encoder, void *data)
@@ -265,6 +286,25 @@ void exynos_drm_encoder_crtc_mode_set(struct drm_encoder *encoder, void *data)
 	overlay_ops->mode_set(manager->dev, overlay);
 }
 
+void exynos_drm_encoder_crtc_disable(struct drm_encoder *encoder, void *data)
+{
+	struct exynos_drm_manager *manager =
+		to_exynos_encoder(encoder)->manager;
+	struct exynos_drm_overlay_ops *overlay_ops = manager->overlay_ops;
+
+	DRM_DEBUG_KMS("\n");
+
+	overlay_ops->disable(manager->dev);
+
+	/*
+	 * crtc is already detached from encoder and last
+	 * function for detaching is properly done, so
+	 * clear pipe from manager to prevent repeated call
+	 */
+	if (!encoder->crtc)
+		manager->pipe = -1;
+}
+
 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");