186 static void stm_output_claim(struct stm_device *stm, struct stm_output *output)  in stm_output_claim()  argument
188 	struct stp_master *master = stm_master(stm, output->master);  in stm_output_claim()
191 	lockdep_assert_held(&output->lock);  in stm_output_claim()
193 	if (WARN_ON_ONCE(master->nr_free < output->nr_chans))  in stm_output_claim()
196 	bitmap_allocate_region(&master->chan_map[0], output->channel,  in stm_output_claim()
197 			       ilog2(output->nr_chans));  in stm_output_claim()
199 	master->nr_free -= output->nr_chans;  in stm_output_claim()
203 stm_output_disclaim(struct stm_device *stm, struct stm_output *output)  in stm_output_disclaim()  argument
205 	struct stp_master *master = stm_master(stm, output->master);  in stm_output_disclaim()
208 	lockdep_assert_held(&output->lock);  in stm_output_disclaim()
210 	bitmap_release_region(&master->chan_map[0], output->channel,  in stm_output_disclaim()
211 			      ilog2(output->nr_chans));  in stm_output_disclaim()
213 	master->nr_free += output->nr_chans;  in stm_output_disclaim()
214 	output->nr_chans = 0;  in stm_output_disclaim()
283 			     struct stm_output *output)  in stm_output_assign()  argument
302 	spin_lock(&output->lock);  in stm_output_assign()
304 	if (WARN_ON_ONCE(output->nr_chans))  in stm_output_assign()
311 	output->master = midx;  in stm_output_assign()
312 	output->channel = cidx;  in stm_output_assign()
313 	output->nr_chans = width;  in stm_output_assign()
321 		ret = stm->pdrv->output_open(priv, output);  in stm_output_assign()
326 	stm_output_claim(stm, output);  in stm_output_assign()
332 		output->nr_chans = 0;  in stm_output_assign()
334 	spin_unlock(&output->lock);  in stm_output_assign()
340 static void stm_output_free(struct stm_device *stm, struct stm_output *output)  in stm_output_free()  argument
343 	spin_lock(&output->lock);  in stm_output_free()
344 	if (output->nr_chans)  in stm_output_free()
345 		stm_output_disclaim(stm, output);  in stm_output_free()
347 		stm->pdrv->output_close(output);  in stm_output_free()
348 	spin_unlock(&output->lock);  in stm_output_free()
352 static void stm_output_init(struct stm_output *output)  in stm_output_init()  argument
354 	spin_lock_init(&output->lock);  in stm_output_init()
501 	stm_output_init(&stmf->output);  in stm_char_open()
526 		stm->data->unlink(stm->data, stmf->output.master,  in stm_char_release()
527 				  stmf->output.channel);  in stm_char_release()
529 	stm_output_free(stm, &stmf->output);  in stm_char_release()
542 stm_assign_first_policy(struct stm_device *stm, struct stm_output *output,  in stm_assign_first_policy()  argument
560 	err = stm_output_assign(stm, width, pn, output);  in stm_assign_first_policy()
602 stm_write(struct stm_device *stm, struct stm_output *output,  in stm_write()  argument
611 	err = stm->pdrv->write(stm->data, output, chan, buf, count);  in stm_write()
633 	if (!stmf->output.nr_chans) {  in stm_char_write()
639 		err = stm_assign_first_policy(stmf->stm, &stmf->output, ids, 1);  in stm_char_write()
660 	count = stm_write(stm, &stmf->output, 0, kbuf, count);  in stm_char_write()
705 	if (stmf->output.nr_chans * stm->data->sw_mmiosz != size)  in stm_char_mmap()
708 	phys = stm->data->mmio_addr(stm->data, stmf->output.master,  in stm_char_mmap()
709 				    stmf->output.channel,  in stm_char_mmap()
710 				    stmf->output.nr_chans);  in stm_char_mmap()
733 	if (stmf->output.nr_chans)  in stm_char_policy_set_ioctl()
765 	ret = stm_assign_first_policy(stmf->stm, &stmf->output, ids,  in stm_char_policy_set_ioctl()
771 		ret = stm->data->link(stm->data, stmf->output.master,  in stm_char_policy_set_ioctl()
772 				      stmf->output.channel);  in stm_char_policy_set_ioctl()
775 		stm_output_free(stmf->stm, &stmf->output);  in stm_char_policy_set_ioctl()
787 		.master		= stmf->output.master,  in stm_char_policy_get_ioctl()
788 		.channel	= stmf->output.channel,  in stm_char_policy_get_ioctl()
789 		.width		= stmf->output.nr_chans,  in stm_char_policy_get_ioctl()
822 						    stmf->output.master,  in stm_char_ioctl()
823 						    stmf->output.channel,  in stm_char_ioctl()
824 						    stmf->output.nr_chans,  in stm_char_ioctl()
1012 	err = stm_assign_first_policy(stm, &src->output, ids,  in stm_source_link_add()
1021 		err = stm->data->link(stm->data, src->output.master,  in stm_source_link_add()
1022 				      src->output.channel);  in stm_source_link_add()
1034 	stm_output_free(stm, &src->output);  in stm_source_link_add()
1084 	stm_output_free(link, &src->output);  in __stm_source_link_drop()
1105 			stm->data->unlink(stm->data, src->output.master,  in __stm_source_link_drop()
1106 					  src->output.channel);  in __stm_source_link_drop()
1253 	stm_output_init(&src->output);  in stm_source_register_device()
1292 	if (!src->output.nr_chans)  in stm_source_write()
1295 	if (chan >= src->output.nr_chans)  in stm_source_write()
1302 		count = stm_write(stm, &src->output, chan, buf, count);  in stm_source_write()