drm/exynos: add subdrv open/close functions

Some subdrv need open and close functions call when open and close drm.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/exynos/exynos_drm_core.c b/drivers/gpu/drm/exynos/exynos_drm_core.c
index 937b0597c8b32f28b920c73f2050c0a1a65ff5f9..4e29c7174ac5d02c8333b8176b74ef77846164c4 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_core.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_core.c
@@ -175,3 +175,38 @@ int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *subdrv)
        return 0;
 }
 EXPORT_SYMBOL_GPL(exynos_drm_subdrv_unregister);
+
+int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file)
+{
+       struct exynos_drm_subdrv *subdrv;
+       int ret;
+
+       list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
+               if (subdrv->open) {
+                       ret = subdrv->open(dev, subdrv->manager.dev, file);
+                       if (ret)
+                               goto err;
+               }
+       }
+
+       return 0;
+
+err:
+       list_for_each_entry_reverse(subdrv, &subdrv->list, list) {
+               if (subdrv->close)
+                       subdrv->close(dev, subdrv->manager.dev, file);
+       }
+       return ret;
+}
+EXPORT_SYMBOL_GPL(exynos_drm_subdrv_open);
+
+void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file)
+{
+       struct exynos_drm_subdrv *subdrv;
+
+       list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
+               if (subdrv->close)
+                       subdrv->close(dev, subdrv->manager.dev, file);
+       }
+}
+EXPORT_SYMBOL_GPL(exynos_drm_subdrv_close);

diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 903fcf0f05c7f436f720d1217108b07895ba922d..1d78e039643b10c20c9e593356e771168f01fa56 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -144,6 +144,13 @@ static int exynos_drm_unload(struct drm_device *dev)
        return 0;
 }
 
+static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
+{
+       DRM_DEBUG_DRIVER("%s\n", __FILE__);
+
+       return exynos_drm_subdrv_open(dev, file);
+}
+
 static void exynos_drm_preclose(struct drm_device *dev,
                                        struct drm_file *file)
 {
@@ -163,6 +170,8 @@ static void exynos_drm_preclose(struct drm_device *dev,
                }
        }
        spin_unlock_irqrestore(&dev->event_lock, flags);
+
+       exynos_drm_subdrv_close(dev, file);
 }
 
 static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
@@ -216,6 +225,7 @@ static struct drm_driver exynos_drm_driver = {
                                  DRIVER_MODESET | DRIVER_GEM,
        .load                   = exynos_drm_load,
        .unload                 = exynos_drm_unload,
+       .open                   = exynos_drm_open,
        .preclose               = exynos_drm_preclose,
        .lastclose              = exynos_drm_lastclose,
        .postclose              = exynos_drm_postclose,

diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
index f8bac0eb2cb2a55869d5471fe99ff8dde8782dca..a41245402ce45ec267bb9c67ac8377875c8e0bf4 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -229,6 +229,8 @@ struct exynos_drm_private {
  *     subdrv is registered to it.
  * @remove: this callback is used to release resources created
  *     by probe callback.
+ * @open: this would be called with drm device file open.
+ * @close: this would be called with drm device file close.
  * @manager: subdrv has its own manager to control a hardware appropriately
  *     and we can access a hardware drawing on this manager.
  * @encoder: encoder object owned by this sub driver.
@@ -240,6 +242,10 @@ struct exynos_drm_subdrv {
 
        int (*probe)(struct drm_device *drm_dev, struct device *dev);
        void (*remove)(struct drm_device *dev);
+       int (*open)(struct drm_device *drm_dev, struct device *dev,
+                       struct drm_file *file);
+       void (*close)(struct drm_device *drm_dev, struct device *dev,
+                       struct drm_file *file);
 
        struct exynos_drm_manager manager;
        struct drm_encoder *encoder;
@@ -269,6 +275,9 @@ int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv);
 /* this function removes subdrv list from exynos drm driver */
 int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv);
 
+int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file);
+void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);
+
 extern struct platform_driver fimd_driver;
 extern struct platform_driver hdmi_driver;
 extern struct platform_driver mixer_driver;