41 	struct mbox_controller mbox;  member
59 mhu_db_mbox_to_channel(struct mbox_controller *mbox, unsigned int pchan,  in mhu_db_mbox_to_channel()  argument
65 	for (i = 0; i < mbox->num_chans; i++) {  in mhu_db_mbox_to_channel()
66 		chan_info = mbox->chans[i].con_priv;  in mhu_db_mbox_to_channel()
69 			return &mbox->chans[i];  in mhu_db_mbox_to_channel()
99 	struct mbox_controller *mbox = &mhu->mbox;  in mhu_db_mbox_irq_to_channel()  local
112 		chan = mhu_db_mbox_to_channel(mbox, pchan, doorbell);  in mhu_db_mbox_irq_to_channel()
115 		dev_err(mbox->dev,  in mhu_db_mbox_irq_to_channel()
168 	struct mbox_controller *mbox = &chan_info->mhu->mbox;  in mhu_db_shutdown()  local
171 	for (i = 0; i < mbox->num_chans; i++)  in mhu_db_shutdown()
172 		if (chan == &mbox->chans[i])  in mhu_db_shutdown()
175 	if (mbox->num_chans == i) {  in mhu_db_shutdown()
176 		dev_warn(mbox->dev, "Request to free non-existent channel\n");  in mhu_db_shutdown()
182 	devm_kfree(mbox->dev, chan->con_priv);  in mhu_db_shutdown()
186 static struct mbox_chan *mhu_db_mbox_xlate(struct mbox_controller *mbox,  in mhu_db_mbox_xlate()  argument
189 	struct arm_mhu *mhu = dev_get_drvdata(mbox->dev);  in mhu_db_mbox_xlate()
198 		dev_err(mbox->dev,  in mhu_db_mbox_xlate()
205 	chan = mhu_db_mbox_to_channel(mbox, pchan, doorbell);  in mhu_db_mbox_xlate()
207 		dev_err(mbox->dev, "Channel in use: pchan: %d doorbell: %d\n",  in mhu_db_mbox_xlate()
213 	for (i = 0; i < mbox->num_chans; i++)  in mhu_db_mbox_xlate()
214 		if (!mbox->chans[i].con_priv)  in mhu_db_mbox_xlate()
217 	if (mbox->num_chans == i) {  in mhu_db_mbox_xlate()
218 		dev_err(mbox->dev, "No free channels left\n");  in mhu_db_mbox_xlate()
222 	chan = &mbox->chans[i];  in mhu_db_mbox_xlate()
224 	chan_info = devm_kzalloc(mbox->dev, sizeof(*chan_info), GFP_KERNEL);  in mhu_db_mbox_xlate()
234 	dev_dbg(mbox->dev, "mbox: created channel phys: %d doorbell: %d\n",  in mhu_db_mbox_xlate()
262 	err = of_property_read_u32(np, "#mbox-cells", &cell_count);  in mhu_db_probe()
264 		dev_err(dev, "failed to read #mbox-cells in '%pOF'\n", np);  in mhu_db_probe()
271 		dev_err(dev, "incorrect value of #mbox-cells in '%pOF'\n", np);  in mhu_db_probe()
288 	mhu->mbox.dev = dev;  in mhu_db_probe()
289 	mhu->mbox.chans = chans;  in mhu_db_probe()
290 	mhu->mbox.num_chans = max_chans;  in mhu_db_probe()
291 	mhu->mbox.txdone_irq = false;  in mhu_db_probe()
292 	mhu->mbox.txdone_poll = true;  in mhu_db_probe()
293 	mhu->mbox.txpoll_period = 1;  in mhu_db_probe()
295 	mhu->mbox.of_xlate = mhu_db_mbox_xlate;  in mhu_db_probe()
298 	mhu->mbox.ops = &mhu_db_ops;  in mhu_db_probe()
300 	err = devm_mbox_controller_register(dev, &mhu->mbox);  in mhu_db_probe()
322 			mbox_controller_unregister(&mhu->mbox);  in mhu_db_probe()