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Commit 304a4f6a authored by Noralf Trønnes's avatar Noralf Trønnes
Browse files

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



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

Signed-off-by: default avatarNoralf Trønnes <noralf@tronnes.org>
Reviewed-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20171030153951.56269-4-noralf@tronnes.org
parent 29ad20b2

drivers/gpu/drm/drm_fb_helper.c

+28 −0
Original line number Diff line number Diff line
@@ -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.

include/drm/drm_fb_helper.h

+11 −0
Original line number Diff line number Diff line
@@ -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