1 // SPDX-License-Identifier: GPL-2.0
3  * Copyright 2020-2021 NXP
25 static int vpu_mbox_request_channel(struct device *dev, struct vpu_mbox *mbox)  in vpu_mbox_request_channel()  argument
30 	if (!dev || !mbox)  in vpu_mbox_request_channel()
31 		return -EINVAL;  in vpu_mbox_request_channel()
32 	if (mbox->ch)  in vpu_mbox_request_channel()
35 	cl = &mbox->cl;  in vpu_mbox_request_channel()
36 	cl->dev = dev;  in vpu_mbox_request_channel()
37 	if (mbox->block) {  in vpu_mbox_request_channel()
38 		cl->tx_block = true;  in vpu_mbox_request_channel()
39 		cl->tx_tout = 1000;  in vpu_mbox_request_channel()
41 		cl->tx_block = false;  in vpu_mbox_request_channel()
43 	cl->knows_txdone = false;  in vpu_mbox_request_channel()
44 	cl->rx_callback = vpu_mbox_rx_callback;  in vpu_mbox_request_channel()
46 	ch = mbox_request_channel_byname(cl, mbox->name);  in vpu_mbox_request_channel()
49 				     "Failed to request mbox chan %s\n",  in vpu_mbox_request_channel()
50 				     mbox->name);  in vpu_mbox_request_channel()
52 	mbox->ch = ch;  in vpu_mbox_request_channel()
58 	scnprintf(core->tx_type.name, sizeof(core->tx_type.name) - 1, "tx0");  in vpu_mbox_init()
59 	core->tx_type.block = true;  in vpu_mbox_init()
61 	scnprintf(core->tx_data.name, sizeof(core->tx_data.name) - 1, "tx1");  in vpu_mbox_init()
62 	core->tx_data.block = false;  in vpu_mbox_init()
64 	scnprintf(core->rx.name, sizeof(core->rx.name) - 1, "rx");  in vpu_mbox_init()
65 	core->rx.block = true;  in vpu_mbox_init()
74 	ret = vpu_mbox_request_channel(core->dev, &core->tx_type);  in vpu_mbox_request()
77 	ret = vpu_mbox_request_channel(core->dev, &core->tx_data);  in vpu_mbox_request()
80 	ret = vpu_mbox_request_channel(core->dev, &core->rx);  in vpu_mbox_request()
84 	dev_dbg(core->dev, "%s request mbox\n", vpu_core_type_desc(core->type));  in vpu_mbox_request()
93 	mbox_free_channel(core->tx_type.ch);  in vpu_mbox_free()
94 	mbox_free_channel(core->tx_data.ch);  in vpu_mbox_free()
95 	mbox_free_channel(core->rx.ch);  in vpu_mbox_free()
96 	core->tx_type.ch = NULL;  in vpu_mbox_free()
97 	core->tx_data.ch = NULL;  in vpu_mbox_free()
98 	core->rx.ch = NULL;  in vpu_mbox_free()
99 	dev_dbg(core->dev, "%s free mbox\n", vpu_core_type_desc(core->type));  in vpu_mbox_free()
104 	mbox_send_message(core->tx_type.ch, &type);  in vpu_mbox_send_type()
109 	mbox_send_message(core->tx_data.ch, &data);  in vpu_mbox_send_msg()
110 	mbox_send_message(core->tx_type.ch, &type);  in vpu_mbox_send_msg()