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);
388 data_reg += sizeof(u32);
392 * 'data_reg' indicates next register to write. If we did not already
393 * write on tx complete reg(last reg), we must do so for transmit
394 * In addition, we also need to make sure all intermediate data
395 * registers(if any required), are reset to 0 for TISCI backward
396 * compatibility to be maintained.
398 while (data_reg <= qinst->queue_buff_end) {
400 data_reg += sizeof(u32);
407 * ti_msgmgr_queue_rx_irq_req() - RX IRQ request
408 * @dev: device pointer
409 * @d: descriptor for ti_msgmgr
410 * @qinst: Queue instance
411 * @chan: Channel pointer
413 static int ti_msgmgr_queue_rx_irq_req(struct device *dev,
414 const struct ti_msgmgr_desc *d,
415 struct ti_queue_inst *qinst,
416 struct mbox_chan *chan)
419 char of_rx_irq_name[7];
420 struct device_node *np;
422 snprintf(of_rx_irq_name, sizeof(of_rx_irq_name),
423 "rx_%03d", d->is_sproxy ? qinst->proxy_id : qinst->queue_id);
425 /* Get the IRQ if not found */
426 if (qinst->irq < 0) {
427 np = of_node_get(dev->of_node);
430 qinst->irq = of_irq_get_byname(np, of_rx_irq_name);
433 if (qinst->irq < 0) {
435 "QID %d PID %d:No IRQ[%s]: %d\n",
436 qinst->queue_id, qinst->proxy_id,
437 of_rx_irq_name, qinst->irq);
442 /* With the expectation that the IRQ might be shared in SoC */
443 ret = request_irq(qinst->irq, ti_msgmgr_queue_rx_interrupt,
444 IRQF_SHARED, qinst->name, chan);
446 dev_err(dev, "Unable to get IRQ %d on %s(res=%d)\n",
447 qinst->irq, qinst->name, ret);
454 * ti_msgmgr_queue_startup() - Startup queue
455 * @chan: Channel pointer
457 * Return: 0 if all goes good, else return corresponding error message
459 static int ti_msgmgr_queue_startup(struct mbox_chan *chan)
461 struct device *dev = chan->mbox->dev;
462 struct ti_msgmgr_inst *inst = dev_get_drvdata(dev);
463 struct ti_queue_inst *qinst = chan->con_priv;
464 const struct ti_msgmgr_desc *d = inst->desc;
469 * If sproxy is starting and can send messages, we are a Tx thread,
473 qinst->is_tx = (readl(qinst->queue_ctrl) &
474 SPROXY_THREAD_CTRL_DIR_MASK) ? false : true;
476 msg_count = ti_msgmgr_queue_get_num_messages(d, qinst);
478 if (!msg_count && qinst->is_tx) {
479 dev_err(dev, "%s: Cannot transmit with 0 credits!\n",
486 /* Allocate usage buffer for rx */
487 qinst->rx_buff = kzalloc(d->max_message_size, GFP_KERNEL);
491 ret = ti_msgmgr_queue_rx_irq_req(dev, d, qinst, chan);
493 kfree(qinst->rx_buff);
502 * ti_msgmgr_queue_shutdown() - Shutdown the queue
503 * @chan: Channel pointer
505 static void ti_msgmgr_queue_shutdown(struct mbox_chan *chan)
507 struct ti_queue_inst *qinst = chan->con_priv;
510 free_irq(qinst->irq, chan);
511 kfree(qinst->rx_buff);
516 * ti_msgmgr_of_xlate() - Translation of phandle to queue
517 * @mbox: Mailbox controller
518 * @p: phandle pointer
520 * Return: Mailbox channel corresponding to the queue, else return error
523 static struct mbox_chan *ti_msgmgr_of_xlate(struct mbox_controller *mbox,
524 const struct of_phandle_args *p)
526 struct ti_msgmgr_inst *inst;
527 int req_qid, req_pid;
528 struct ti_queue_inst *qinst;
529 const struct ti_msgmgr_desc *d;
532 inst = container_of(mbox, struct ti_msgmgr_inst, mbox);
534 return ERR_PTR(-EINVAL);
542 if (p->args_count != ncells) {
543 dev_err(inst->dev, "Invalid arguments in dt[%d]. Must be %d\n",
544 p->args_count, ncells);
545 return ERR_PTR(-EINVAL);
549 req_pid = p->args[0];
551 req_qid = p->args[0];
552 req_pid = p->args[1];
556 if (req_pid >= d->num_valid_queues)
558 qinst = &inst->qinsts[req_pid];
562 for (qinst = inst->qinsts, i = 0; i < inst->num_valid_queues;
564 if (req_qid == qinst->queue_id && req_pid == qinst->proxy_id)
569 dev_err(inst->dev, "Queue ID %d, Proxy ID %d is wrong on %pOFn\n",
570 req_qid, req_pid, p->np);
571 return ERR_PTR(-ENOENT);
575 * ti_msgmgr_queue_setup() - Setup data structures for each queue instance
576 * @idx: index of the queue
577 * @dev: pointer to the message manager device
578 * @np: pointer to the of node
579 * @inst: Queue instance pointer
580 * @d: Message Manager instance description data
581 * @qd: Queue description data
582 * @qinst: Queue instance pointer
583 * @chan: pointer to mailbox channel
585 * Return: 0 if all went well, else return corresponding error
587 static int ti_msgmgr_queue_setup(int idx, struct device *dev,
588 struct device_node *np,
589 struct ti_msgmgr_inst *inst,
590 const struct ti_msgmgr_desc *d,
591 const struct ti_msgmgr_valid_queue_desc *qd,
592 struct ti_queue_inst *qinst,
593 struct mbox_chan *chan)
597 qinst->proxy_id = qd->proxy_id;
598 qinst->queue_id = qd->queue_id;
600 if (qinst->queue_id > d->queue_count) {
601 dev_err(dev, "Queue Data [idx=%d] queuid %d > %d\n",
602 idx, qinst->queue_id, d->queue_count);
607 qinst->queue_buff_start = inst->queue_proxy_region +
608 SPROXY_THREAD_DATA_OFFSET(qinst->proxy_id,
610 qinst->queue_buff_end = inst->queue_proxy_region +
611 SPROXY_THREAD_DATA_OFFSET(qinst->proxy_id,
613 qinst->queue_state = inst->queue_state_debug_region +
614 SPROXY_THREAD_STATUS_OFFSET(qinst->proxy_id);
615 qinst->queue_ctrl = inst->queue_ctrl_region +
616 SPROXY_THREAD_CTRL_OFFSET(qinst->proxy_id);
618 /* XXX: DONOT read registers here!.. Some may be unusable */
620 snprintf(qinst->name, sizeof(qinst->name), "%s %s_%03d",
621 dev_name(dev), dir, qinst->proxy_id);
623 qinst->queue_buff_start = inst->queue_proxy_region +
624 Q_DATA_OFFSET(qinst->proxy_id, qinst->queue_id,
626 qinst->queue_buff_end = inst->queue_proxy_region +
627 Q_DATA_OFFSET(qinst->proxy_id, qinst->queue_id,
630 inst->queue_state_debug_region +
631 Q_STATE_OFFSET(qinst->queue_id);
632 qinst->is_tx = qd->is_tx;
633 dir = qinst->is_tx ? "tx" : "rx";
634 snprintf(qinst->name, sizeof(qinst->name), "%s %s_%03d_%03d",
635 dev_name(dev), dir, qinst->queue_id, qinst->proxy_id);
640 /* Setup an error value for IRQ - Lazy allocation */
641 qinst->irq = -EINVAL;
643 chan->con_priv = qinst;
645 dev_dbg(dev, "[%d] qidx=%d pidx=%d irq=%d q_s=%p q_e = %p\n",
646 idx, qinst->queue_id, qinst->proxy_id, qinst->irq,
647 qinst->queue_buff_start, qinst->queue_buff_end);
651 /* Queue operations */
652 static const struct mbox_chan_ops ti_msgmgr_chan_ops = {
653 .startup = ti_msgmgr_queue_startup,
654 .shutdown = ti_msgmgr_queue_shutdown,
655 .peek_data = ti_msgmgr_queue_peek_data,
656 .last_tx_done = ti_msgmgr_last_tx_done,
657 .send_data = ti_msgmgr_send_data,
660 /* Keystone K2G SoC integration details */
661 static const struct ti_msgmgr_valid_queue_desc k2g_valid_queues[] = {
662 {.queue_id = 0, .proxy_id = 0, .is_tx = true,},
663 {.queue_id = 1, .proxy_id = 0, .is_tx = true,},
664 {.queue_id = 2, .proxy_id = 0, .is_tx = true,},
665 {.queue_id = 3, .proxy_id = 0, .is_tx = true,},
666 {.queue_id = 5, .proxy_id = 2, .is_tx = false,},
667 {.queue_id = 56, .proxy_id = 1, .is_tx = true,},
668 {.queue_id = 57, .proxy_id = 2, .is_tx = false,},
669 {.queue_id = 58, .proxy_id = 3, .is_tx = true,},
670 {.queue_id = 59, .proxy_id = 4, .is_tx = true,},
671 {.queue_id = 60, .proxy_id = 5, .is_tx = true,},
672 {.queue_id = 61, .proxy_id = 6, .is_tx = true,},
675 static const struct ti_msgmgr_desc k2g_desc = {
677 .max_message_size = 64,
679 .data_region_name = "queue_proxy_region",
680 .status_region_name = "queue_state_debug_region",
681 .data_first_reg = 16,
683 .status_cnt_mask = Q_STATE_ENTRY_COUNT_MASK,
685 .valid_queues = k2g_valid_queues,
686 .num_valid_queues = ARRAY_SIZE(k2g_valid_queues),
690 static const struct ti_msgmgr_desc am654_desc = {
692 .num_valid_queues = 190,
693 .max_message_size = 60,
694 .data_region_name = "target_data",
695 .status_region_name = "rt",
696 .ctrl_region_name = "scfg",
699 .status_cnt_mask = SPROXY_THREAD_STATUS_COUNT_MASK,
704 static const struct of_device_id ti_msgmgr_of_match[] = {
705 {.compatible = "ti,k2g-message-manager", .data = &k2g_desc},
706 {.compatible = "ti,am654-secure-proxy", .data = &am654_desc},
710 MODULE_DEVICE_TABLE(of, ti_msgmgr_of_match);
712 static int ti_msgmgr_probe(struct platform_device *pdev)
714 struct device *dev = &pdev->dev;
715 const struct of_device_id *of_id;
716 struct device_node *np;
717 struct resource *res;
718 const struct ti_msgmgr_desc *desc;
719 struct ti_msgmgr_inst *inst;
720 struct ti_queue_inst *qinst;
721 struct mbox_controller *mbox;
722 struct mbox_chan *chans;
726 const struct ti_msgmgr_valid_queue_desc *queue_desc;
729 dev_err(dev, "no OF information\n");
734 of_id = of_match_device(ti_msgmgr_of_match, dev);
736 dev_err(dev, "OF data missing\n");
741 inst = devm_kzalloc(dev, sizeof(*inst), GFP_KERNEL);
748 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
749 desc->data_region_name);
750 inst->queue_proxy_region = devm_ioremap_resource(dev, res);
751 if (IS_ERR(inst->queue_proxy_region))
752 return PTR_ERR(inst->queue_proxy_region);
754 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
755 desc->status_region_name);
756 inst->queue_state_debug_region = devm_ioremap_resource(dev, res);
757 if (IS_ERR(inst->queue_state_debug_region))
758 return PTR_ERR(inst->queue_state_debug_region);
760 if (desc->is_sproxy) {
761 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
762 desc->ctrl_region_name);
763 inst->queue_ctrl_region = devm_ioremap_resource(dev, res);
764 if (IS_ERR(inst->queue_ctrl_region))
765 return PTR_ERR(inst->queue_ctrl_region);
768 dev_dbg(dev, "proxy region=%p, queue_state=%p\n",
769 inst->queue_proxy_region, inst->queue_state_debug_region);
771 queue_count = desc->num_valid_queues;
772 if (!queue_count || queue_count > desc->queue_count) {
773 dev_crit(dev, "Invalid Number of queues %d. Max %d\n",
774 queue_count, desc->queue_count);
777 inst->num_valid_queues = queue_count;
779 qinst = devm_kcalloc(dev, queue_count, sizeof(*qinst), GFP_KERNEL);
782 inst->qinsts = qinst;
784 chans = devm_kcalloc(dev, queue_count, sizeof(*chans), GFP_KERNEL);
789 if (desc->is_sproxy) {
790 struct ti_msgmgr_valid_queue_desc sproxy_desc;
792 /* All proxies may be valid in Secure Proxy instance */
793 for (i = 0; i < queue_count; i++, qinst++, chans++) {
794 sproxy_desc.queue_id = 0;
795 sproxy_desc.proxy_id = i;
796 ret = ti_msgmgr_queue_setup(i, dev, np, inst,
797 desc, &sproxy_desc, qinst,
803 /* Only Some proxies are valid in Message Manager */
804 for (i = 0, queue_desc = desc->valid_queues;
805 i < queue_count; i++, qinst++, chans++, queue_desc++) {
806 ret = ti_msgmgr_queue_setup(i, dev, np, inst,
807 desc, queue_desc, qinst,
816 mbox->ops = &ti_msgmgr_chan_ops;
817 mbox->chans = inst->chans;
818 mbox->num_chans = inst->num_valid_queues;
819 mbox->txdone_irq = false;
820 mbox->txdone_poll = desc->tx_polled;
822 mbox->txpoll_period = desc->tx_poll_timeout_ms;
823 mbox->of_xlate = ti_msgmgr_of_xlate;
825 platform_set_drvdata(pdev, inst);
826 ret = devm_mbox_controller_register(dev, mbox);
828 dev_err(dev, "Failed to register mbox_controller(%d)\n", ret);
833 static struct platform_driver ti_msgmgr_driver = {
834 .probe = ti_msgmgr_probe,
837 .of_match_table = of_match_ptr(ti_msgmgr_of_match),
840 module_platform_driver(ti_msgmgr_driver);
842 MODULE_LICENSE("GPL v2");
843 MODULE_DESCRIPTION("TI message manager driver");
844 MODULE_AUTHOR("Nishanth Menon");
845 MODULE_ALIAS("platform:ti-msgmgr");