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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>
This commit is contained in:
Joonyoung Shim 2012-03-16 18:47:09 +09:00 committed by Dave Airlie
parent 132a5b915f
commit 9084f7b8a5
3 changed files with 54 additions and 0 deletions
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35
drivers/gpu/drm/exynos/exynos_drm_core.c
View File

@ -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);

10
drivers/gpu/drm/exynos/exynos_drm_drv.c
View File

@ -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,

9
drivers/gpu/drm/exynos/exynos_drm_drv.h
View File

@ -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;