From: Joonyoung Shim jy0922.shim@samsung.com
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 --- drivers/gpu/drm/exynos/exynos_drm_core.c | 35 ++++++++++++++++++++++++++++++ drivers/gpu/drm/exynos/exynos_drm_drv.c | 10 ++++++++ drivers/gpu/drm/exynos/exynos_drm_drv.h | 9 +++++++ 3 files changed, 54 insertions(+), 0 deletions(-)
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 @@ 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 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 @@ 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 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 @@ 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;