X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=drivers%2Fgpu%2Fdrm%2Fexynos%2Fexynos_drm_core.c;h=4c9f972eaa0771c0b2d9c5ff0f5480da3dc1e93d;hb=f37cd5e8098441af6447a87574fbb78eb5b4f9bf;hp=0e9e06ce36b860ae8fb5a91d40faf31d917b180a;hpb=121692eb0895c5c16f29f3b2141d2913021584ac;p=firefly-linux-kernel-4.4.55.git

diff --git a/drivers/gpu/drm/exynos/exynos_drm_core.c b/drivers/gpu/drm/exynos/exynos_drm_core.c
index 0e9e06ce36b8..4c9f972eaa07 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_core.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_core.c
@@ -19,21 +19,19 @@
 #include "exynos_drm_fbdev.h"
 
 static LIST_HEAD(exynos_drm_subdrv_list);
-static LIST_HEAD(exynos_drm_manager_list);
-static LIST_HEAD(exynos_drm_display_list);
 
-static int exynos_drm_create_enc_conn(struct drm_device *dev,
+int exynos_drm_create_enc_conn(struct drm_device *dev,
 					struct exynos_drm_display *display)
 {
 	struct drm_encoder *encoder;
-	struct exynos_drm_manager *manager;
 	int ret;
 	unsigned long possible_crtcs = 0;
 
-	/* Find possible crtcs for this display */
-	list_for_each_entry(manager, &exynos_drm_manager_list, list)
-		if (manager->type == display->type)
-			possible_crtcs |= 1 << manager->pipe;
+	ret = exynos_drm_crtc_get_pipe_from_type(dev, display->type);
+	if (ret < 0)
+		return ret;
+
+	possible_crtcs |= 1 << ret;
 
 	/* create and initialize a encoder for this sub driver. */
 	encoder = exynos_drm_encoder_create(dev, display, possible_crtcs);
@@ -57,127 +55,29 @@ err_destroy_encoder:
 	return ret;
 }
 
-static int exynos_drm_subdrv_probe(struct drm_device *dev,
-					struct exynos_drm_subdrv *subdrv)
-{
-	if (subdrv->probe) {
-		int ret;
-
-		subdrv->drm_dev = dev;
-
-		/*
-		 * this probe callback would be called by sub driver
-		 * after setting of all resources to this sub driver,
-		 * such as clock, irq and register map are done or by load()
-		 * of exynos drm driver.
-		 *
-		 * P.S. note that this driver is considered for modularization.
-		 */
-		ret = subdrv->probe(dev, subdrv->dev);
-		if (ret)
-			return ret;
-	}
-
-	return 0;
-}
-
-static void exynos_drm_subdrv_remove(struct drm_device *dev,
-				      struct exynos_drm_subdrv *subdrv)
-{
-	if (subdrv->remove)
-		subdrv->remove(dev, subdrv->dev);
-}
-
-int exynos_drm_initialize_managers(struct drm_device *dev)
+int exynos_drm_subdrv_register(struct exynos_drm_subdrv *subdrv)
 {
-	struct exynos_drm_manager *manager, *n;
-	int ret, pipe = 0;
-
-	list_for_each_entry(manager, &exynos_drm_manager_list, list) {
-		if (manager->ops->initialize) {
-			ret = manager->ops->initialize(manager, dev, pipe);
-			if (ret) {
-				DRM_ERROR("Mgr init [%d] failed with %d\n",
-						manager->type, ret);
-				goto err;
-			}
-		}
+	if (!subdrv)
+		return -EINVAL;
 
-		manager->drm_dev = dev;
-		manager->pipe = pipe++;
+	list_add_tail(&subdrv->list, &exynos_drm_subdrv_list);
 
-		ret = exynos_drm_crtc_create(manager);
-		if (ret) {
-			DRM_ERROR("CRTC create [%d] failed with %d\n",
-					manager->type, ret);
-			goto err;
-		}
-	}
 	return 0;
-
-err:
-	list_for_each_entry_safe(manager, n, &exynos_drm_manager_list, list) {
-		if (pipe-- > 0)
-			exynos_drm_manager_unregister(manager);
-		else
-			list_del(&manager->list);
-	}
-	return ret;
-}
-
-void exynos_drm_remove_managers(struct drm_device *dev)
-{
-	struct exynos_drm_manager *manager, *n;
-
-	list_for_each_entry_safe(manager, n, &exynos_drm_manager_list, list)
-		exynos_drm_manager_unregister(manager);
 }
+EXPORT_SYMBOL_GPL(exynos_drm_subdrv_register);
 
-int exynos_drm_initialize_displays(struct drm_device *dev)
+int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *subdrv)
 {
-	struct exynos_drm_display *display, *n;
-	int ret, initialized = 0;
-
-	list_for_each_entry(display, &exynos_drm_display_list, list) {
-		if (display->ops->initialize) {
-			ret = display->ops->initialize(display, dev);
-			if (ret) {
-				DRM_ERROR("Display init [%d] failed with %d\n",
-						display->type, ret);
-				goto err;
-			}
-		}
+	if (!subdrv)
+		return -EINVAL;
 
-		initialized++;
+	list_del(&subdrv->list);
 
-		ret = exynos_drm_create_enc_conn(dev, display);
-		if (ret) {
-			DRM_ERROR("Encoder create [%d] failed with %d\n",
-					display->type, ret);
-			goto err;
-		}
-	}
 	return 0;
-
-err:
-	list_for_each_entry_safe(display, n, &exynos_drm_display_list, list) {
-		if (initialized-- > 0)
-			exynos_drm_display_unregister(display);
-		else
-			list_del(&display->list);
-	}
-	return ret;
-}
-
-void exynos_drm_remove_displays(struct drm_device *dev)
-{
-	struct exynos_drm_display *display, *n;
-
-	list_for_each_entry_safe(display, n, &exynos_drm_display_list, list)
-		exynos_drm_display_unregister(display);
 }
+EXPORT_SYMBOL_GPL(exynos_drm_subdrv_unregister);
 
-int exynos_drm_device_register(struct drm_device *dev)
+int exynos_drm_device_subdrv_probe(struct drm_device *dev)
 {
 	struct exynos_drm_subdrv *subdrv, *n;
 	int err;
@@ -186,19 +86,28 @@ int exynos_drm_device_register(struct drm_device *dev)
 		return -EINVAL;
 
 	list_for_each_entry_safe(subdrv, n, &exynos_drm_subdrv_list, list) {
-		err = exynos_drm_subdrv_probe(dev, subdrv);
-		if (err) {
-			DRM_DEBUG("exynos drm subdrv probe failed.\n");
-			list_del(&subdrv->list);
-			continue;
+		if (subdrv->probe) {
+			subdrv->drm_dev = dev;
+
+			/*
+			 * this probe callback would be called by sub driver
+			 * after setting of all resources to this sub driver,
+			 * such as clock, irq and register map are done.
+			 */
+			err = subdrv->probe(dev, subdrv->dev);
+			if (err) {
+				DRM_DEBUG("exynos drm subdrv probe failed.\n");
+				list_del(&subdrv->list);
+				continue;
+			}
 		}
 	}
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(exynos_drm_device_register);
+EXPORT_SYMBOL_GPL(exynos_drm_device_subdrv_probe);
 
-int exynos_drm_device_unregister(struct drm_device *dev)
+int exynos_drm_device_subdrv_remove(struct drm_device *dev)
 {
 	struct exynos_drm_subdrv *subdrv;
 
@@ -208,66 +117,13 @@ int exynos_drm_device_unregister(struct drm_device *dev)
 	}
 
 	list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
-		exynos_drm_subdrv_remove(dev, subdrv);
+		if (subdrv->remove)
+			subdrv->remove(dev, subdrv->dev);
 	}
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(exynos_drm_device_unregister);
-
-int exynos_drm_manager_register(struct exynos_drm_manager *manager)
-{
-	BUG_ON(!manager->ops);
-	list_add_tail(&manager->list, &exynos_drm_manager_list);
-	return 0;
-}
-
-int exynos_drm_manager_unregister(struct exynos_drm_manager *manager)
-{
-	if (manager->ops->remove)
-		manager->ops->remove(manager);
-
-	list_del(&manager->list);
-	return 0;
-}
-
-int exynos_drm_display_register(struct exynos_drm_display *display)
-{
-	BUG_ON(!display->ops);
-	list_add_tail(&display->list, &exynos_drm_display_list);
-	return 0;
-}
-
-int exynos_drm_display_unregister(struct exynos_drm_display *display)
-{
-	if (display->ops->remove)
-		display->ops->remove(display);
-
-	list_del(&display->list);
-	return 0;
-}
-
-int exynos_drm_subdrv_register(struct exynos_drm_subdrv *subdrv)
-{
-	if (!subdrv)
-		return -EINVAL;
-
-	list_add_tail(&subdrv->list, &exynos_drm_subdrv_list);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(exynos_drm_subdrv_register);
-
-int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *subdrv)
-{
-	if (!subdrv)
-		return -EINVAL;
-
-	list_del(&subdrv->list);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(exynos_drm_subdrv_unregister);
+EXPORT_SYMBOL_GPL(exynos_drm_device_subdrv_remove);
 
 int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file)
 {