1 // SPDX-License-Identifier: GPL-2.0-or-later
6  * Maxime Ripard <maxime.ripard@free-electrons.com>
23 	if (plane->state) {  in sun4i_backend_layer_reset()
24 		state = state_to_sun4i_layer_state(plane->state);  in sun4i_backend_layer_reset()
26 		__drm_atomic_helper_plane_destroy_state(&state->state);  in sun4i_backend_layer_reset()
29 		plane->state = NULL;  in sun4i_backend_layer_reset()
34 		__drm_atomic_helper_plane_reset(plane, &state->state);  in sun4i_backend_layer_reset()
40 	struct sun4i_layer_state *orig = state_to_sun4i_layer_state(plane->state);  in sun4i_backend_layer_duplicate_state()
47 	__drm_atomic_helper_plane_duplicate_state(plane, &copy->state);  in sun4i_backend_layer_duplicate_state()
48 	copy->uses_frontend = orig->uses_frontend;  in sun4i_backend_layer_duplicate_state()
50 	return &copy->state;  in sun4i_backend_layer_duplicate_state()
69 	struct sun4i_layer *layer = plane_to_sun4i_layer(plane);  in sun4i_backend_layer_atomic_disable()  local
70 	struct sun4i_backend *backend = layer->backend;  in sun4i_backend_layer_atomic_disable()
72 	sun4i_backend_layer_enable(backend, layer->id, false);  in sun4i_backend_layer_atomic_disable()
74 	if (layer_state->uses_frontend) {  in sun4i_backend_layer_atomic_disable()
77 		spin_lock_irqsave(&backend->frontend_lock, flags);  in sun4i_backend_layer_atomic_disable()
78 		backend->frontend_teardown = true;  in sun4i_backend_layer_atomic_disable()
79 		spin_unlock_irqrestore(&backend->frontend_lock, flags);  in sun4i_backend_layer_atomic_disable()
89 	struct sun4i_layer *layer = plane_to_sun4i_layer(plane);  in sun4i_backend_layer_atomic_update()  local
90 	struct sun4i_backend *backend = layer->backend;  in sun4i_backend_layer_atomic_update()
91 	struct sun4i_frontend *frontend = backend->frontend;  in sun4i_backend_layer_atomic_update()
93 	sun4i_backend_cleanup_layer(backend, layer->id);  in sun4i_backend_layer_atomic_update()
95 	if (layer_state->uses_frontend) {  in sun4i_backend_layer_atomic_update()
101 		sun4i_backend_update_layer_frontend(backend, layer->id,  in sun4i_backend_layer_atomic_update()
105 		sun4i_backend_update_layer_formats(backend, layer->id, plane);  in sun4i_backend_layer_atomic_update()
106 		sun4i_backend_update_layer_buffer(backend, layer->id, plane);  in sun4i_backend_layer_atomic_update()
109 	sun4i_backend_update_layer_coord(backend, layer->id, plane);  in sun4i_backend_layer_atomic_update()
110 	sun4i_backend_update_layer_zpos(backend, layer->id, plane);  in sun4i_backend_layer_atomic_update()
111 	sun4i_backend_layer_enable(backend, layer->id, true);  in sun4i_backend_layer_atomic_update()
117 	struct sun4i_layer *layer = plane_to_sun4i_layer(plane);  in sun4i_layer_format_mod_supported()  local
119 	if (IS_ERR_OR_NULL(layer->backend->frontend))  in sun4i_layer_format_mod_supported()
198 	struct sun4i_layer *layer;  in sun4i_layer_init_one()  local
201 	layer = devm_kzalloc(drm->dev, sizeof(*layer), GFP_KERNEL);  in sun4i_layer_init_one()
202 	if (!layer)  in sun4i_layer_init_one()
203 		return ERR_PTR(-ENOMEM);  in sun4i_layer_init_one()
205 	layer->id = id;  in sun4i_layer_init_one()
206 	layer->backend = backend;  in sun4i_layer_init_one()
208 	if (IS_ERR_OR_NULL(backend->frontend)) {  in sun4i_layer_init_one()
215 	ret = drm_universal_plane_init(drm, &layer->plane, 0,  in sun4i_layer_init_one()
220 		dev_err(drm->dev, "Couldn't initialize layer\n");  in sun4i_layer_init_one()
224 	drm_plane_helper_add(&layer->plane,  in sun4i_layer_init_one()
227 	drm_plane_create_alpha_property(&layer->plane);  in sun4i_layer_init_one()
228 	drm_plane_create_zpos_property(&layer->plane, layer->id,  in sun4i_layer_init_one()
229 				       0, SUN4I_BACKEND_NUM_LAYERS - 1);  in sun4i_layer_init_one()
231 	return layer;  in sun4i_layer_init_one()
242 	planes = devm_kcalloc(drm->dev, SUN4I_BACKEND_NUM_LAYERS + 1,  in sun4i_layers_init()
245 		return ERR_PTR(-ENOMEM);  in sun4i_layers_init()
249 		struct sun4i_layer *layer;  in sun4i_layers_init()  local
251 		layer = sun4i_layer_init_one(drm, backend, type, i);  in sun4i_layers_init()
252 		if (IS_ERR(layer)) {  in sun4i_layers_init()
253 			dev_err(drm->dev, "Couldn't initialize %s plane\n",  in sun4i_layers_init()
254 				i ? "overlay" : "primary");  in sun4i_layers_init()
255 			return ERR_CAST(layer);  in sun4i_layers_init()
258 		planes[i] = &layer->plane;  in sun4i_layers_init()