drivers/mailbox/mailbox-sti.c

42  * @mbox:	Representation of a communication channel controller
55 	struct mbox_controller	*mbox;
97 struct mbox_chan *sti_mbox_to_channel(struct mbox_controller *mbox,
104 	for (i = 0; i < mbox->num_chans; i++) {
105 		chan_info = mbox->chans[i].con_priv;
109 			return &mbox->chans[i];
112 	dev_err(mbox->dev,
163 	struct mbox_controller *mbox = mdev->mbox;
179 		chan = sti_mbox_to_channel(mbox, instance, channel);
181 			dev_dbg(mbox->dev,
303 	struct mbox_controller *mbox = chan_info->mdev->mbox;
306 	for (i = 0; i < mbox->num_chans; i++)
307 		if (chan == &mbox->chans[i])
310 	if (mbox->num_chans == i) {
311 		dev_warn(mbox->dev, "Request to free non-existent channel\n");
321 static struct mbox_chan *sti_mbox_xlate(struct mbox_controller *mbox,
324 	struct sti_mbox_device *mdev = dev_get_drvdata(mbox->dev);
334 		dev_err(mbox->dev,
340 	for (i = 0; i < mbox->num_chans; i++) {
341 		chan_info = mbox->chans[i].con_priv;
345 		    mbox->dev == chan_info->mdev->dev &&
349 			dev_err(mbox->dev, "Channel in use\n");
358 			chan = &mbox->chans[i];
362 		dev_err(mbox->dev, "No free channels left\n");
366 	chan_info = devm_kzalloc(mbox->dev, sizeof(*chan_info), GFP_KERNEL);
376 	dev_info(mbox->dev,
406 	struct mbox_controller *mbox;
429 	ret = of_property_read_string(np, "mbox-name", &mdev->name);
433 	mbox = devm_kzalloc(&pdev->dev, sizeof(*mbox), GFP_KERNEL);
434 	if (!mbox)
443 	mdev->mbox		= mbox;
448 	mbox->txdone_irq	= false;
449 	mbox->txdone_poll	= true;
450 	mbox->txpoll_period	= 100;
451 	mbox->ops		= &sti_mbox_ops;
452 	mbox->dev		= mdev->dev;
453 	mbox->of_xlate		= sti_mbox_xlate;
454 	mbox->chans		= chans;
455 	mbox->num_chans		= STI_MBOX_CHAN_MAX;
457 	ret = devm_mbox_controller_register(&pdev->dev, mbox);