313 static struct mbox_chan *apple_mbox_of_xlate(struct mbox_controller *mbox,  in apple_mbox_of_xlate()  argument
319 	return &mbox->chans[0];  in apple_mbox_of_xlate()
327 	struct apple_mbox *mbox;  in apple_mbox_probe()  local
336 	mbox = devm_kzalloc(dev, sizeof(*mbox), GFP_KERNEL);  in apple_mbox_probe()
337 	if (!mbox)  in apple_mbox_probe()
339 	platform_set_drvdata(pdev, mbox);  in apple_mbox_probe()
341 	mbox->dev = dev;  in apple_mbox_probe()
342 	mbox->regs = devm_platform_ioremap_resource(pdev, 0);  in apple_mbox_probe()
343 	if (IS_ERR(mbox->regs))  in apple_mbox_probe()
344 		return PTR_ERR(mbox->regs);  in apple_mbox_probe()
346 	mbox->hw = match->data;  in apple_mbox_probe()
347 	mbox->irq_recv_not_empty =  in apple_mbox_probe()
349 	if (mbox->irq_recv_not_empty < 0)  in apple_mbox_probe()
352 	mbox->irq_send_empty = platform_get_irq_byname(pdev, "send-empty");  in apple_mbox_probe()
353 	if (mbox->irq_send_empty < 0)  in apple_mbox_probe()
356 	mbox->controller.dev = mbox->dev;  in apple_mbox_probe()
357 	mbox->controller.num_chans = 1;  in apple_mbox_probe()
358 	mbox->controller.chans = &mbox->chan;  in apple_mbox_probe()
359 	mbox->controller.ops = &apple_mbox_ops;  in apple_mbox_probe()
360 	mbox->controller.txdone_irq = true;  in apple_mbox_probe()
361 	mbox->controller.of_xlate = apple_mbox_of_xlate;  in apple_mbox_probe()
362 	mbox->chan.con_priv = mbox;  in apple_mbox_probe()
363 	spin_lock_init(&mbox->rx_lock);  in apple_mbox_probe()
369 	ret = devm_request_threaded_irq(dev, mbox->irq_recv_not_empty, NULL,  in apple_mbox_probe()
372 					mbox);  in apple_mbox_probe()
380 	ret = devm_request_irq(dev, mbox->irq_send_empty,  in apple_mbox_probe()
382 			       irqname, mbox);  in apple_mbox_probe()
386 	return devm_mbox_controller_register(dev, &mbox->controller);  in apple_mbox_probe()