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drm/fb-helper: Introduce drm_fb_helper_unprepare() 

Move the fb-helper clean-up code into drm_fb_helper_unprepare(). No
functional changes.

v2:
	* declare as static inline (kernel test robot)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230125200415.14123-4-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2023-01-25 21:04:08 +01:00
parent 6a9d5ad3af
commit 4825797c36
2 changed files with 18 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/gpu/drm/drm_fb_helper.c
View File

@ -433,6 +433,18 @@ void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper,
}
EXPORT_SYMBOL(drm_fb_helper_prepare);
/**
* drm_fb_helper_unprepare - clean up a drm_fb_helper structure
* @fb_helper: driver-allocated fbdev helper structure to set up
*
* Cleans up the framebuffer helper. Inverse of drm_fb_helper_prepare().
*/
void drm_fb_helper_unprepare(struct drm_fb_helper *fb_helper)
{
mutex_destroy(&fb_helper->lock);
}
EXPORT_SYMBOL(drm_fb_helper_unprepare);
/**
* drm_fb_helper_init - initialize a &struct drm_fb_helper
* @dev: drm device
@ -559,7 +571,7 @@ void drm_fb_helper_fini(struct drm_fb_helper *fb_helper)
}
mutex_unlock(&kernel_fb_helper_lock);
mutex_destroy(&fb_helper->lock);
drm_fb_helper_unprepare(fb_helper);
if (!fb_helper->client.funcs)
drm_client_release(&fb_helper->client);

5
include/drm/drm_fb_helper.h
View File

@ -230,6 +230,7 @@ drm_fb_helper_from_client(struct drm_client_dev *client)
#ifdef CONFIG_DRM_FBDEV_EMULATION
void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper,
const struct drm_fb_helper_funcs *funcs);
void drm_fb_helper_unprepare(struct drm_fb_helper *fb_helper);
int drm_fb_helper_init(struct drm_device *dev, struct drm_fb_helper *helper);
void drm_fb_helper_fini(struct drm_fb_helper *helper);
int drm_fb_helper_blank(int blank, struct fb_info *info);
@ -296,6 +297,10 @@ static inline void drm_fb_helper_prepare(struct drm_device *dev,
{
}
static inline void drm_fb_helper_unprepare(struct drm_fb_helper *fb_helper)
{
}
static inline int drm_fb_helper_init(struct drm_device *dev,
struct drm_fb_helper *helper)
{