1 // SPDX-License-Identifier: GPL-2.0
3 * Texas Instruments' Message Manager Driver
5 * Copyright (C) 2015-2017 Texas Instruments Incorporated - https://www.ti.com/
9 #define pr_fmt(fmt) "%s: " fmt, __func__
11 #include <linux/device.h>
12 #include <linux/interrupt.h>
14 #include <linux/kernel.h>
15 #include <linux/mailbox_controller.h>
16 #include <linux/module.h>
17 #include <linux/of_device.h>
19 #include <linux/of_irq.h>
20 #include <linux/platform_device.h>
21 #include <linux/soc/ti/ti-msgmgr.h>
23 #define Q_DATA_OFFSET(proxy, queue, reg) \
24 ((0x10000 * (proxy)) + (0x80 * (queue)) + ((reg) * 4))
25 #define Q_STATE_OFFSET(queue) ((queue) * 0x4)
26 #define Q_STATE_ENTRY_COUNT_MASK (0xFFF000)
28 #define SPROXY_THREAD_OFFSET(tid) (0x1000 * (tid))
29 #define SPROXY_THREAD_DATA_OFFSET(tid, reg) \
30 (SPROXY_THREAD_OFFSET(tid) + ((reg) * 0x4) + 0x4)
32 #define SPROXY_THREAD_STATUS_OFFSET(tid) (SPROXY_THREAD_OFFSET(tid))
34 #define SPROXY_THREAD_STATUS_COUNT_MASK (0xFF)
36 #define SPROXY_THREAD_CTRL_OFFSET(tid) (0x1000 + SPROXY_THREAD_OFFSET(tid))
37 #define SPROXY_THREAD_CTRL_DIR_MASK (0x1 << 31)
40 * struct ti_msgmgr_valid_queue_desc - SoC valid queues meant for this processor
41 * @queue_id: Queue Number for this path
42 * @proxy_id: Proxy ID representing the processor in SoC
43 * @is_tx: Is this a receive path?
45 struct ti_msgmgr_valid_queue_desc {
52 * struct ti_msgmgr_desc - Description of message manager integration
53 * @queue_count: Number of Queues
54 * @max_message_size: Message size in bytes
55 * @max_messages: Number of messages
56 * @data_first_reg: First data register for proxy data region
57 * @data_last_reg: Last data register for proxy data region
58 * @status_cnt_mask: Mask for getting the status value
59 * @status_err_mask: Mask for getting the error value, if applicable
60 * @tx_polled: Do I need to use polled mechanism for tx
61 * @tx_poll_timeout_ms: Timeout in ms if polled
62 * @valid_queues: List of Valid queues that the processor can access
63 * @data_region_name: Name of the proxy data region
64 * @status_region_name: Name of the proxy status region
65 * @ctrl_region_name: Name of the proxy control region
66 * @num_valid_queues: Number of valid queues
67 * @is_sproxy: Is this an Secure Proxy instance?
69 * This structure is used in of match data to describe how integration
70 * for a specific compatible SoC is done.
72 struct ti_msgmgr_desc {
81 int tx_poll_timeout_ms;
82 const struct ti_msgmgr_valid_queue_desc *valid_queues;
83 const char *data_region_name;
84 const char *status_region_name;
85 const char *ctrl_region_name;
91 * struct ti_queue_inst - Description of a queue instance
93 * @queue_id: Queue Identifier as mapped on SoC
94 * @proxy_id: Proxy Identifier as mapped on SoC
95 * @irq: IRQ for Rx Queue
96 * @is_tx: 'true' if transmit queue, else, 'false'
97 * @queue_buff_start: First register of Data Buffer
98 * @queue_buff_end: Last (or confirmation) register of Data buffer
99 * @queue_state: Queue status register
100 * @queue_ctrl: Queue Control register
101 * @chan: Mailbox channel
102 * @rx_buff: Receive buffer pointer allocated at probe, max_message_size
104 struct ti_queue_inst {
110 void __iomem *queue_buff_start;
111 void __iomem *queue_buff_end;
112 void __iomem *queue_state;
113 void __iomem *queue_ctrl;
114 struct mbox_chan *chan;
119 * struct ti_msgmgr_inst - Description of a Message Manager Instance
120 * @dev: device pointer corresponding to the Message Manager instance
121 * @desc: Description of the SoC integration
122 * @queue_proxy_region: Queue proxy region where queue buffers are located
123 * @queue_state_debug_region: Queue status register regions
124 * @queue_ctrl_region: Queue Control register regions
125 * @num_valid_queues: Number of valid queues defined for the processor
126 * Note: other queues are probably reserved for other processors
128 * @qinsts: Array of valid Queue Instances for the Processor
129 * @mbox: Mailbox Controller
130 * @chans: Array for channels corresponding to the Queue Instances.
132 struct ti_msgmgr_inst {
134 const struct ti_msgmgr_desc *desc;
135 void __iomem *queue_proxy_region;
136 void __iomem *queue_state_debug_region;
137 void __iomem *queue_ctrl_region;
139 struct ti_queue_inst *qinsts;
140 struct mbox_controller mbox;
141 struct mbox_chan *chans;
145 * ti_msgmgr_queue_get_num_messages() - Get the number of pending messages
146 * @d: Description of message manager
147 * @qinst: Queue instance for which we check the number of pending messages
149 * Return: number of messages pending in the queue (0 == no pending messages)
152 ti_msgmgr_queue_get_num_messages(const struct ti_msgmgr_desc *d,
153 struct ti_queue_inst *qinst)
156 u32 status_cnt_mask = d->status_cnt_mask;
159 * We cannot use relaxed operation here - update may happen
162 val = readl(qinst->queue_state) & status_cnt_mask;
163 val >>= __ffs(status_cnt_mask);
169 * ti_msgmgr_queue_is_error() - Check to see if there is queue error
170 * @d: Description of message manager
171 * @qinst: Queue instance for which we check the number of pending messages
173 * Return: true if error, else false
175 static inline bool ti_msgmgr_queue_is_error(const struct ti_msgmgr_desc *d,
176 struct ti_queue_inst *qinst)
180 /* Msgmgr has no error detection */
185 * We cannot use relaxed operation here - update may happen
188 val = readl(qinst->queue_state) & d->status_err_mask;
190 return val ? true : false;
194 * ti_msgmgr_queue_rx_interrupt() - Interrupt handler for receive Queue
195 * @irq: Interrupt number
196 * @p: Channel Pointer
198 * Return: -EINVAL if there is no instance
199 * IRQ_NONE if the interrupt is not ours.
200 * IRQ_HANDLED if the rx interrupt was successfully handled.
202 static irqreturn_t ti_msgmgr_queue_rx_interrupt(int irq, void *p)
204 struct mbox_chan *chan = p;
205 struct device *dev = chan->mbox->dev;
206 struct ti_msgmgr_inst *inst = dev_get_drvdata(dev);
207 struct ti_queue_inst *qinst = chan->con_priv;
208 const struct ti_msgmgr_desc *desc;
209 int msg_count, num_words;
210 struct ti_msgmgr_message message;
211 void __iomem *data_reg;
214 if (WARN_ON(!inst)) {
215 dev_err(dev, "no platform drv data??\n");
219 /* Do I have an invalid interrupt source? */
221 dev_err(dev, "Cannot handle rx interrupt on tx channel %s\n",
227 if (ti_msgmgr_queue_is_error(desc, qinst)) {
228 dev_err(dev, "Error on Rx channel %s\n", qinst->name);
232 /* Do I actually have messages to read? */
233 msg_count = ti_msgmgr_queue_get_num_messages(desc, qinst);
236 dev_dbg(dev, "Spurious event - 0 pending data!\n");
241 * I have no idea about the protocol being used to communicate with the
242 * remote producer - 0 could be valid data, so I wont make a judgement
243 * of how many bytes I should be reading. Let the client figure this
244 * out.. I just read the full message and pass it on..
246 message.len = desc->max_message_size;
247 message.buf = (u8 *)qinst->rx_buff;
250 * NOTE about register access involved here:
251 * the hardware block is implemented with 32bit access operations and no
252 * support for data splitting. We don't want the hardware to misbehave
253 * with sub 32bit access - For example: if the last register read is
254 * split into byte wise access, it can result in the queue getting
255 * stuck or indeterminate behavior. An out of order read operation may
256 * result in weird data results as well.
257 * Hence, we do not use memcpy_fromio or __ioread32_copy here, instead
258 * we depend on readl for the purpose.
260 * Also note that the final register read automatically marks the
261 * queue message as read.
263 for (data_reg = qinst->queue_buff_start, word_data = qinst->rx_buff,
264 num_words = (desc->max_message_size / sizeof(u32));
265 num_words; num_words--, data_reg += sizeof(u32), word_data++)
266 *word_data = readl(data_reg);
269 * Last register read automatically clears the IRQ if only 1 message
270 * is pending - so send the data up the stack..
271 * NOTE: Client is expected to be as optimal as possible, since
272 * we invoke the handler in IRQ context.
274 mbox_chan_received_data(chan, (void *)&message);
280 * ti_msgmgr_queue_peek_data() - Peek to see if there are any rx messages.
281 * @chan: Channel Pointer
283 * Return: 'true' if there is pending rx data, 'false' if there is none.
285 static bool ti_msgmgr_queue_peek_data(struct mbox_chan *chan)
287 struct ti_queue_inst *qinst = chan->con_priv;
288 struct device *dev = chan->mbox->dev;
289 struct ti_msgmgr_inst *inst = dev_get_drvdata(dev);
290 const struct ti_msgmgr_desc *desc = inst->desc;
296 if (ti_msgmgr_queue_is_error(desc, qinst)) {
297 dev_err(dev, "Error on channel %s\n", qinst->name);
301 msg_count = ti_msgmgr_queue_get_num_messages(desc, qinst);
303 return msg_count ? true : false;
307 * ti_msgmgr_last_tx_done() - See if all the tx messages are sent
308 * @chan: Channel pointer
310 * Return: 'true' is no pending tx data, 'false' if there are any.
312 static bool ti_msgmgr_last_tx_done(struct mbox_chan *chan)
314 struct ti_queue_inst *qinst = chan->con_priv;
315 struct device *dev = chan->mbox->dev;
316 struct ti_msgmgr_inst *inst = dev_get_drvdata(dev);
317 const struct ti_msgmgr_desc *desc = inst->desc;
323 if (ti_msgmgr_queue_is_error(desc, qinst)) {
324 dev_err(dev, "Error on channel %s\n", qinst->name);
328 msg_count = ti_msgmgr_queue_get_num_messages(desc, qinst);
330 if (desc->is_sproxy) {
331 /* In secure proxy, msg_count indicates how many we can send */
332 return msg_count ? true : false;
335 /* if we have any messages pending.. */
336 return msg_count ? false : true;
340 * ti_msgmgr_send_data() - Send data
341 * @chan: Channel Pointer
342 * @data: ti_msgmgr_message * Message Pointer
344 * Return: 0 if all goes good, else appropriate error messages.
346 static int ti_msgmgr_send_data(struct mbox_chan *chan, void *data)
348 struct device *dev = chan->mbox->dev;
349 struct ti_msgmgr_inst *inst = dev_get_drvdata(dev);
350 const struct ti_msgmgr_desc *desc;
351 struct ti_queue_inst *qinst = chan->con_priv;
352 int num_words, trail_bytes;
353 struct ti_msgmgr_message *message = data;
354 void __iomem *data_reg;
357 if (WARN_ON(!inst)) {
358 dev_err(dev, "no platform drv data??\n");
363 if (ti_msgmgr_queue_is_error(desc, qinst)) {
364 dev_err(dev, "Error on channel %s\n", qinst->name);
368 if (desc->max_message_size < message->len) {
369 dev_err(dev, "Queue %s message length %zu > max %d\n",
370 qinst->name, message->len, desc->max_message_size);
374 /* NOTE: Constraints similar to rx path exists here as well */
375 for (data_reg = qinst->queue_buff_start,
376 num_words = message->len / sizeof(u32),
377 word_data = (u32 *)message->buf;
378 num_words; num_words--, data_reg += sizeof(u32), word_data++)
379 writel(*word_data, data_reg);
381 trail_bytes = message->len % sizeof(u32);
383 u32 data_trail = *word_data;
385 /* Ensure all unused data is 0 */
386 data_trail &= 0xFFFFFFFF >> (8 * (sizeof(u32) - trail_bytes));
387 writel(data_trail, data_reg);
391 * 'data_reg' indicates next register to write. If we did not already
392 * write on tx complete reg(last reg), we must do so for transmit
394 if (data_reg <= qinst->queue_buff_end)
395 writel(0, qinst->queue_buff_end);
401 * ti_msgmgr_queue_rx_irq_req() - RX IRQ request
402 * @dev: device pointer
403 * @d: descriptor for ti_msgmgr
404 * @qinst: Queue instance
405 * @chan: Channel pointer
407 static int ti_msgmgr_queue_rx_irq_req(struct device *dev,
408 const struct ti_msgmgr_desc *d,
409 struct ti_queue_inst *qinst,
410 struct mbox_chan *chan)
413 char of_rx_irq_name[7];
414 struct device_node *np;
416 snprintf(of_rx_irq_name, sizeof(of_rx_irq_name),
417 "rx_%03d", d->is_sproxy ? qinst->proxy_id : qinst->queue_id);
419 /* Get the IRQ if not found */
420 if (qinst->irq < 0) {
421 np = of_node_get(dev->of_node);
424 qinst->irq = of_irq_get_byname(np, of_rx_irq_name);
427 if (qinst->irq < 0) {
429 "QID %d PID %d:No IRQ[%s]: %d\n",
430 qinst->queue_id, qinst->proxy_id,
431 of_rx_irq_name, qinst->irq);
436 /* With the expectation that the IRQ might be shared in SoC */
437 ret = request_irq(qinst->irq, ti_msgmgr_queue_rx_interrupt,
438 IRQF_SHARED, qinst->name, chan);
440 dev_err(dev, "Unable to get IRQ %d on %s(res=%d)\n",
441 qinst->irq, qinst->name, ret);
448 * ti_msgmgr_queue_startup() - Startup queue
449 * @chan: Channel pointer
451 * Return: 0 if all goes good, else return corresponding error message
453 static int ti_msgmgr_queue_startup(struct mbox_chan *chan)
455 struct device *dev = chan->mbox->dev;
456 struct ti_msgmgr_inst *inst = dev_get_drvdata(dev);
457 struct ti_queue_inst *qinst = chan->con_priv;
458 const struct ti_msgmgr_desc *d = inst->desc;
463 * If sproxy is starting and can send messages, we are a Tx thread,
467 qinst->is_tx = (readl(qinst->queue_ctrl) &
468 SPROXY_THREAD_CTRL_DIR_MASK) ? false : true;
470 msg_count = ti_msgmgr_queue_get_num_messages(d, qinst);
472 if (!msg_count && qinst->is_tx) {
473 dev_err(dev, "%s: Cannot transmit with 0 credits!\n",
480 /* Allocate usage buffer for rx */
481 qinst->rx_buff = kzalloc(d->max_message_size, GFP_KERNEL);
485 ret = ti_msgmgr_queue_rx_irq_req(dev, d, qinst, chan);
487 kfree(qinst->rx_buff);
496 * ti_msgmgr_queue_shutdown() - Shutdown the queue
497 * @chan: Channel pointer
499 static void ti_msgmgr_queue_shutdown(struct mbox_chan *chan)
501 struct ti_queue_inst *qinst = chan->con_priv;
504 free_irq(qinst->irq, chan);
505 kfree(qinst->rx_buff);
510 * ti_msgmgr_of_xlate() - Translation of phandle to queue
511 * @mbox: Mailbox controller
512 * @p: phandle pointer
514 * Return: Mailbox channel corresponding to the queue, else return error
517 static struct mbox_chan *ti_msgmgr_of_xlate(struct mbox_controller *mbox,
518 const struct of_phandle_args *p)
520 struct ti_msgmgr_inst *inst;
521 int req_qid, req_pid;
522 struct ti_queue_inst *qinst;
523 const struct ti_msgmgr_desc *d;
526 inst = container_of(mbox, struct ti_msgmgr_inst, mbox);
528 return ERR_PTR(-EINVAL);
536 if (p->args_count != ncells) {
537 dev_err(inst->dev, "Invalid arguments in dt[%d]. Must be %d\n",
538 p->args_count, ncells);
539 return ERR_PTR(-EINVAL);
543 req_pid = p->args[0];
545 req_qid = p->args[0];
546 req_pid = p->args[1];
550 if (req_pid >= d->num_valid_queues)
552 qinst = &inst->qinsts[req_pid];
556 for (qinst = inst->qinsts, i = 0; i < inst->num_valid_queues;
558 if (req_qid == qinst->queue_id && req_pid == qinst->proxy_id)
563 dev_err(inst->dev, "Queue ID %d, Proxy ID %d is wrong on %pOFn\n",
564 req_qid, req_pid, p->np);
565 return ERR_PTR(-ENOENT);
569 * ti_msgmgr_queue_setup() - Setup data structures for each queue instance
570 * @idx: index of the queue
571 * @dev: pointer to the message manager device
572 * @np: pointer to the of node
573 * @inst: Queue instance pointer
574 * @d: Message Manager instance description data
575 * @qd: Queue description data
576 * @qinst: Queue instance pointer
577 * @chan: pointer to mailbox channel
579 * Return: 0 if all went well, else return corresponding error
581 static int ti_msgmgr_queue_setup(int idx, struct device *dev,
582 struct device_node *np,
583 struct ti_msgmgr_inst *inst,
584 const struct ti_msgmgr_desc *d,
585 const struct ti_msgmgr_valid_queue_desc *qd,
586 struct ti_queue_inst *qinst,
587 struct mbox_chan *chan)
591 qinst->proxy_id = qd->proxy_id;
592 qinst->queue_id = qd->queue_id;
594 if (qinst->queue_id > d->queue_count) {
595 dev_err(dev, "Queue Data [idx=%d] queuid %d > %d\n",
596 idx, qinst->queue_id, d->queue_count);
601 qinst->queue_buff_start = inst->queue_proxy_region +
602 SPROXY_THREAD_DATA_OFFSET(qinst->proxy_id,
604 qinst->queue_buff_end = inst->queue_proxy_region +
605 SPROXY_THREAD_DATA_OFFSET(qinst->proxy_id,
607 qinst->queue_state = inst->queue_state_debug_region +
608 SPROXY_THREAD_STATUS_OFFSET(qinst->proxy_id);
609 qinst->queue_ctrl = inst->queue_ctrl_region +
610 SPROXY_THREAD_CTRL_OFFSET(qinst->proxy_id);
612 /* XXX: DONOT read registers here!.. Some may be unusable */
614 snprintf(qinst->name, sizeof(qinst->name), "%s %s_%03d",
615 dev_name(dev), dir, qinst->proxy_id);
617 qinst->queue_buff_start = inst->queue_proxy_region +
618 Q_DATA_OFFSET(qinst->proxy_id, qinst->queue_id,
620 qinst->queue_buff_end = inst->queue_proxy_region +
621 Q_DATA_OFFSET(qinst->proxy_id, qinst->queue_id,
624 inst->queue_state_debug_region +
625 Q_STATE_OFFSET(qinst->queue_id);
626 qinst->is_tx = qd->is_tx;
627 dir = qinst->is_tx ? "tx" : "rx";
628 snprintf(qinst->name, sizeof(qinst->name), "%s %s_%03d_%03d",
629 dev_name(dev), dir, qinst->queue_id, qinst->proxy_id);
634 /* Setup an error value for IRQ - Lazy allocation */
635 qinst->irq = -EINVAL;
637 chan->con_priv = qinst;
639 dev_dbg(dev, "[%d] qidx=%d pidx=%d irq=%d q_s=%p q_e = %p\n",
640 idx, qinst->queue_id, qinst->proxy_id, qinst->irq,
641 qinst->queue_buff_start, qinst->queue_buff_end);
645 /* Queue operations */
646 static const struct mbox_chan_ops ti_msgmgr_chan_ops = {
647 .startup = ti_msgmgr_queue_startup,
648 .shutdown = ti_msgmgr_queue_shutdown,
649 .peek_data = ti_msgmgr_queue_peek_data,
650 .last_tx_done = ti_msgmgr_last_tx_done,
651 .send_data = ti_msgmgr_send_data,
654 /* Keystone K2G SoC integration details */
655 static const struct ti_msgmgr_valid_queue_desc k2g_valid_queues[] = {
656 {.queue_id = 0, .proxy_id = 0, .is_tx = true,},
657 {.queue_id = 1, .proxy_id = 0, .is_tx = true,},
658 {.queue_id = 2, .proxy_id = 0, .is_tx = true,},
659 {.queue_id = 3, .proxy_id = 0, .is_tx = true,},
660 {.queue_id = 5, .proxy_id = 2, .is_tx = false,},
661 {.queue_id = 56, .proxy_id = 1, .is_tx = true,},
662 {.queue_id = 57, .proxy_id = 2, .is_tx = false,},
663 {.queue_id = 58, .proxy_id = 3, .is_tx = true,},
664 {.queue_id = 59, .proxy_id = 4, .is_tx = true,},
665 {.queue_id = 60, .proxy_id = 5, .is_tx = true,},
666 {.queue_id = 61, .proxy_id = 6, .is_tx = true,},
669 static const struct ti_msgmgr_desc k2g_desc = {
671 .max_message_size = 64,
673 .data_region_name = "queue_proxy_region",
674 .status_region_name = "queue_state_debug_region",
675 .data_first_reg = 16,
677 .status_cnt_mask = Q_STATE_ENTRY_COUNT_MASK,
679 .valid_queues = k2g_valid_queues,
680 .num_valid_queues = ARRAY_SIZE(k2g_valid_queues),
684 static const struct ti_msgmgr_desc am654_desc = {
686 .num_valid_queues = 190,
687 .max_message_size = 60,
688 .data_region_name = "target_data",
689 .status_region_name = "rt",
690 .ctrl_region_name = "scfg",
693 .status_cnt_mask = SPROXY_THREAD_STATUS_COUNT_MASK,
698 static const struct of_device_id ti_msgmgr_of_match[] = {
699 {.compatible = "ti,k2g-message-manager", .data = &k2g_desc},
700 {.compatible = "ti,am654-secure-proxy", .data = &am654_desc},
704 MODULE_DEVICE_TABLE(of, ti_msgmgr_of_match);
706 static int ti_msgmgr_probe(struct platform_device *pdev)
708 struct device *dev = &pdev->dev;
709 const struct of_device_id *of_id;
710 struct device_node *np;
711 struct resource *res;
712 const struct ti_msgmgr_desc *desc;
713 struct ti_msgmgr_inst *inst;
714 struct ti_queue_inst *qinst;
715 struct mbox_controller *mbox;
716 struct mbox_chan *chans;
720 const struct ti_msgmgr_valid_queue_desc *queue_desc;
723 dev_err(dev, "no OF information\n");
728 of_id = of_match_device(ti_msgmgr_of_match, dev);
730 dev_err(dev, "OF data missing\n");
735 inst = devm_kzalloc(dev, sizeof(*inst), GFP_KERNEL);
742 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
743 desc->data_region_name);
744 inst->queue_proxy_region = devm_ioremap_resource(dev, res);
745 if (IS_ERR(inst->queue_proxy_region))
746 return PTR_ERR(inst->queue_proxy_region);
748 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
749 desc->status_region_name);
750 inst->queue_state_debug_region = devm_ioremap_resource(dev, res);
751 if (IS_ERR(inst->queue_state_debug_region))
752 return PTR_ERR(inst->queue_state_debug_region);
754 if (desc->is_sproxy) {
755 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
756 desc->ctrl_region_name);
757 inst->queue_ctrl_region = devm_ioremap_resource(dev, res);
758 if (IS_ERR(inst->queue_ctrl_region))
759 return PTR_ERR(inst->queue_ctrl_region);
762 dev_dbg(dev, "proxy region=%p, queue_state=%p\n",
763 inst->queue_proxy_region, inst->queue_state_debug_region);
765 queue_count = desc->num_valid_queues;
766 if (!queue_count || queue_count > desc->queue_count) {
767 dev_crit(dev, "Invalid Number of queues %d. Max %d\n",
768 queue_count, desc->queue_count);
771 inst->num_valid_queues = queue_count;
773 qinst = devm_kcalloc(dev, queue_count, sizeof(*qinst), GFP_KERNEL);
776 inst->qinsts = qinst;
778 chans = devm_kcalloc(dev, queue_count, sizeof(*chans), GFP_KERNEL);
783 if (desc->is_sproxy) {
784 struct ti_msgmgr_valid_queue_desc sproxy_desc;
786 /* All proxies may be valid in Secure Proxy instance */
787 for (i = 0; i < queue_count; i++, qinst++, chans++) {
788 sproxy_desc.queue_id = 0;
789 sproxy_desc.proxy_id = i;
790 ret = ti_msgmgr_queue_setup(i, dev, np, inst,
791 desc, &sproxy_desc, qinst,
797 /* Only Some proxies are valid in Message Manager */
798 for (i = 0, queue_desc = desc->valid_queues;
799 i < queue_count; i++, qinst++, chans++, queue_desc++) {
800 ret = ti_msgmgr_queue_setup(i, dev, np, inst,
801 desc, queue_desc, qinst,
810 mbox->ops = &ti_msgmgr_chan_ops;
811 mbox->chans = inst->chans;
812 mbox->num_chans = inst->num_valid_queues;
813 mbox->txdone_irq = false;
814 mbox->txdone_poll = desc->tx_polled;
816 mbox->txpoll_period = desc->tx_poll_timeout_ms;
817 mbox->of_xlate = ti_msgmgr_of_xlate;
819 platform_set_drvdata(pdev, inst);
820 ret = devm_mbox_controller_register(dev, mbox);
822 dev_err(dev, "Failed to register mbox_controller(%d)\n", ret);
827 static struct platform_driver ti_msgmgr_driver = {
828 .probe = ti_msgmgr_probe,
831 .of_match_table = of_match_ptr(ti_msgmgr_of_match),
834 module_platform_driver(ti_msgmgr_driver);
836 MODULE_LICENSE("GPL v2");
837 MODULE_DESCRIPTION("TI message manager driver");
838 MODULE_AUTHOR("Nishanth Menon");
839 MODULE_ALIAS("platform:ti-msgmgr");