35  * This helper library contains various one-off functions which don't really fit
40  * drm_helper_move_panel_connectors_to_head() - move panels to the front in the
57 	spin_lock_irq(&dev->mode_config.connector_list_lock);  in drm_helper_move_panel_connectors_to_head()
59 				 &dev->mode_config.connector_list, head) {  in drm_helper_move_panel_connectors_to_head()
60 		if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS ||  in drm_helper_move_panel_connectors_to_head()
61 		    connector->connector_type == DRM_MODE_CONNECTOR_eDP ||  in drm_helper_move_panel_connectors_to_head()
62 		    connector->connector_type == DRM_MODE_CONNECTOR_DSI)  in drm_helper_move_panel_connectors_to_head()
63 			list_move_tail(&connector->head, &panel_list);  in drm_helper_move_panel_connectors_to_head()
66 	list_splice(&panel_list, &dev->mode_config.connector_list);  in drm_helper_move_panel_connectors_to_head()
67 	spin_unlock_irq(&dev->mode_config.connector_list_lock);  in drm_helper_move_panel_connectors_to_head()
72  * drm_helper_mode_fill_fb_struct - fill out framebuffer metadata
77  * This helper can be used in a drivers fb_create callback to pre-fill the fb's
86 	fb->dev = dev;  in drm_helper_mode_fill_fb_struct()
87 	fb->format = drm_get_format_info(dev, mode_cmd);  in drm_helper_mode_fill_fb_struct()
88 	fb->width = mode_cmd->width;  in drm_helper_mode_fill_fb_struct()
89 	fb->height = mode_cmd->height;  in drm_helper_mode_fill_fb_struct()
91 		fb->pitches[i] = mode_cmd->pitches[i];  in drm_helper_mode_fill_fb_struct()
92 		fb->offsets[i] = mode_cmd->offsets[i];  in drm_helper_mode_fill_fb_struct()
94 	fb->modifier = mode_cmd->modifier[0];  in drm_helper_mode_fill_fb_struct()
95 	fb->flags = mode_cmd->flags;  in drm_helper_mode_fill_fb_struct()
115  * drm_crtc_init - Legacy CRTC initialization function
120  * Initialize a CRTC object with a default helper-provided primary plane and no
147 	/* possible_crtc's will be filled in later by crtc_init */  in drm_crtc_init()
160 	primary->format_default = true;  in drm_crtc_init()
176  * drm_mode_config_helper_suspend - Modeset suspend helper
182  * If suspending fails, fbdev and polling is re-enabled.
198 	drm_fb_helper_set_suspend_unlocked(dev->fb_helper, 1);  in drm_mode_config_helper_suspend()
201 		drm_fb_helper_set_suspend_unlocked(dev->fb_helper, 0);  in drm_mode_config_helper_suspend()
206 	dev->mode_config.suspend_state = state;  in drm_mode_config_helper_suspend()
213  * drm_mode_config_helper_resume - Modeset resume helper
233 	if (WARN_ON(!dev->mode_config.suspend_state))  in drm_mode_config_helper_resume()
234 		return -EINVAL;  in drm_mode_config_helper_resume()
236 	ret = drm_atomic_helper_resume(dev, dev->mode_config.suspend_state);  in drm_mode_config_helper_resume()
239 	dev->mode_config.suspend_state = NULL;  in drm_mode_config_helper_resume()
241 	drm_fb_helper_set_suspend_unlocked(dev->fb_helper, 0);  in drm_mode_config_helper_resume()