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drm/fb-helper: Add .last_close and .output_poll_changed helpers

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This adds helpers for the drm_driver->last_close and the
drm_mode_config_funcs->output_poll_changed callbacks.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20171030153951.56269-4-noralf@tronnes.org
This commit is contained in:
Noralf Trønnes 2017-10-30 16:39:39 +01:00
parent 29ad20b22c
commit 304a4f6acc
2 changed files with 39 additions and 0 deletions
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28
drivers/gpu/drm/drm_fb_helper.c
View file

@ -2633,6 +2633,34 @@ int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper)
}
EXPORT_SYMBOL(drm_fb_helper_hotplug_event);
/**
* drm_fb_helper_lastclose - DRM driver lastclose helper for fbdev emulation
* @dev: DRM device
*
* This function can be used as the &drm_driver->lastclose callback for drivers
* that only need to call drm_fb_helper_restore_fbdev_mode_unlocked().
*/
void drm_fb_helper_lastclose(struct drm_device *dev)
{
drm_fb_helper_restore_fbdev_mode_unlocked(dev->fb_helper);
}
EXPORT_SYMBOL(drm_fb_helper_lastclose);
/**
* drm_fb_helper_output_poll_changed - DRM mode config \.output_poll_changed
* helper for fbdev emulation
* @dev: DRM device
*
* This function can be used as the
* &drm_mode_config_funcs.output_poll_changed callback for drivers that only
* need to call drm_fb_helper_hotplug_event().
*/
void drm_fb_helper_output_poll_changed(struct drm_device *dev)
{
drm_fb_helper_hotplug_event(dev->fb_helper);
}
EXPORT_SYMBOL(drm_fb_helper_output_poll_changed);
/* The Kconfig DRM_KMS_HELPER selects FRAMEBUFFER_CONSOLE (if !EXPERT)
* but the module doesn't depend on any fb console symbols. At least
* attempt to load fbcon to avoid leaving the system without a usable console.

11
include/drm/drm_fb_helper.h
View file

@ -310,6 +310,9 @@ drm_pick_cmdline_mode(struct drm_fb_helper_connector *fb_helper_conn);
int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper, struct drm_connector *connector);
int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
struct drm_connector *connector);
void drm_fb_helper_lastclose(struct drm_device *dev);
void drm_fb_helper_output_poll_changed(struct drm_device *dev);
#else
static inline void drm_fb_helper_prepare(struct drm_device *dev,
struct drm_fb_helper *helper,
@ -507,6 +510,14 @@ drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,
return 0;
}
static inline void drm_fb_helper_lastclose(struct drm_device *dev)
{
}
static inline void drm_fb_helper_output_poll_changed(struct drm_device *dev)
{
}
#endif
static inline int