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 937b059..4e29c71 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_core.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_core.c
@@ -175,3 +175,38 @@
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 903fcf0..1d78e03 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -144,6 +144,13 @@
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 @@
}
}
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 @@
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 f8bac0e..a412454 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -229,6 +229,8 @@
* 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 @@
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 @@
/* 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;
