3  * Silvaco dual-role I3C master driver
14 #include <linux/i3c/master.h>
22 /* Master Mode Registers */
146  * struct svc_i3c_master - Silvaco I3C Master structure
147  * @base: I3C master controller
199  * @index: Index in the master tables corresponding to this device
200  * @ibi: IBI slot index in the master structure
209 static bool svc_i3c_master_error(struct svc_i3c_master *master)  in svc_i3c_master_error()  argument
213 	mstatus = readl(master->regs + SVC_I3C_MSTATUS);  in svc_i3c_master_error()
215 		merrwarn = readl(master->regs + SVC_I3C_MERRWARN);  in svc_i3c_master_error()
216 		writel(merrwarn, master->regs + SVC_I3C_MERRWARN);  in svc_i3c_master_error()
217 		dev_err(master->dev,  in svc_i3c_master_error()
227 static void svc_i3c_master_enable_interrupts(struct svc_i3c_master *master, u32 mask)  in svc_i3c_master_enable_interrupts()  argument
229 	writel(mask, master->regs + SVC_I3C_MINTSET);  in svc_i3c_master_enable_interrupts()
232 static void svc_i3c_master_disable_interrupts(struct svc_i3c_master *master)  in svc_i3c_master_disable_interrupts()  argument
234 	u32 mask = readl(master->regs + SVC_I3C_MINTSET);  in svc_i3c_master_disable_interrupts()
236 	writel(mask, master->regs + SVC_I3C_MINTCLR);  in svc_i3c_master_disable_interrupts()
240 to_svc_i3c_master(struct i3c_master_controller *master)  in to_svc_i3c_master()  argument
242 	return container_of(master, struct svc_i3c_master, base);  in to_svc_i3c_master()
247 	struct svc_i3c_master *master;  in svc_i3c_master_hj_work()  local
249 	master = container_of(work, struct svc_i3c_master, hj_work);  in svc_i3c_master_hj_work()
250 	i3c_master_do_daa(&master->base);  in svc_i3c_master_hj_work()
254 svc_i3c_master_dev_from_addr(struct svc_i3c_master *master,  in svc_i3c_master_dev_from_addr()  argument
260 		if (master->addrs[i] == ibiaddr)  in svc_i3c_master_dev_from_addr()
266 	return master->descs[i];  in svc_i3c_master_dev_from_addr()
269 static void svc_i3c_master_emit_stop(struct svc_i3c_master *master)  in svc_i3c_master_emit_stop()  argument
271 	writel(SVC_I3C_MCTRL_REQUEST_STOP, master->regs + SVC_I3C_MCTRL);  in svc_i3c_master_emit_stop()
282 static void svc_i3c_master_clear_merrwarn(struct svc_i3c_master *master)  in svc_i3c_master_clear_merrwarn()  argument
284 	writel(readl(master->regs + SVC_I3C_MERRWARN),  in svc_i3c_master_clear_merrwarn()
285 	       master->regs + SVC_I3C_MERRWARN);  in svc_i3c_master_clear_merrwarn()
288 static int svc_i3c_master_handle_ibi(struct svc_i3c_master *master,  in svc_i3c_master_handle_ibi()  argument
304 	while (SVC_I3C_MSTATUS_RXPEND(readl(master->regs + SVC_I3C_MSTATUS))  &&  in svc_i3c_master_handle_ibi()
306 		mdatactrl = readl(master->regs + SVC_I3C_MDATACTRL);  in svc_i3c_master_handle_ibi()
308 		readsl(master->regs + SVC_I3C_MRDATAB, buf, count);  in svc_i3c_master_handle_ibi()
313 	master->ibi.tbq_slot = slot;  in svc_i3c_master_handle_ibi()
318 static void svc_i3c_master_ack_ibi(struct svc_i3c_master *master,  in svc_i3c_master_ack_ibi()  argument
329 	writel(ibi_ack_nack, master->regs + SVC_I3C_MCTRL);  in svc_i3c_master_ack_ibi()
332 static void svc_i3c_master_nack_ibi(struct svc_i3c_master *master)  in svc_i3c_master_nack_ibi()  argument
336 	       master->regs + SVC_I3C_MCTRL);  in svc_i3c_master_nack_ibi()
341 	struct svc_i3c_master *master = container_of(work, struct svc_i3c_master, ibi_work);  in svc_i3c_master_ibi_work()  local
351 	       master->regs + SVC_I3C_MCTRL);  in svc_i3c_master_ibi_work()
354 	ret = readl_relaxed_poll_timeout(master->regs + SVC_I3C_MSTATUS, val,  in svc_i3c_master_ibi_work()
357 		dev_err(master->dev, "Timeout when polling for IBIWON\n");  in svc_i3c_master_ibi_work()
362 	writel(SVC_I3C_MINT_IBIWON, master->regs + SVC_I3C_MSTATUS);  in svc_i3c_master_ibi_work()
364 	status = readl(master->regs + SVC_I3C_MSTATUS);  in svc_i3c_master_ibi_work()
371 		dev = svc_i3c_master_dev_from_addr(master, ibiaddr);  in svc_i3c_master_ibi_work()
373 			svc_i3c_master_nack_ibi(master);  in svc_i3c_master_ibi_work()
375 			svc_i3c_master_handle_ibi(master, dev);  in svc_i3c_master_ibi_work()
378 		svc_i3c_master_ack_ibi(master, false);  in svc_i3c_master_ibi_work()
381 		svc_i3c_master_nack_ibi(master);  in svc_i3c_master_ibi_work()
392 	if (svc_i3c_master_error(master)) {  in svc_i3c_master_ibi_work()
393 		if (master->ibi.tbq_slot) {  in svc_i3c_master_ibi_work()
396 						     master->ibi.tbq_slot);  in svc_i3c_master_ibi_work()
397 			master->ibi.tbq_slot = NULL;  in svc_i3c_master_ibi_work()
400 		svc_i3c_master_emit_stop(master);  in svc_i3c_master_ibi_work()
409 			i3c_master_queue_ibi(dev, master->ibi.tbq_slot);  in svc_i3c_master_ibi_work()
410 			master->ibi.tbq_slot = NULL;  in svc_i3c_master_ibi_work()
412 		svc_i3c_master_emit_stop(master);  in svc_i3c_master_ibi_work()
415 		queue_work(master->base.wq, &master->hj_work);  in svc_i3c_master_ibi_work()
423 	svc_i3c_master_enable_interrupts(master, SVC_I3C_MINT_SLVSTART);  in svc_i3c_master_ibi_work()
428 	struct svc_i3c_master *master = (struct svc_i3c_master *)dev_id;  in svc_i3c_master_irq_handler()  local
429 	u32 active = readl(master->regs + SVC_I3C_MINTMASKED);  in svc_i3c_master_irq_handler()
435 	writel(SVC_I3C_MINT_SLVSTART, master->regs + SVC_I3C_MSTATUS);  in svc_i3c_master_irq_handler()
437 	svc_i3c_master_disable_interrupts(master);  in svc_i3c_master_irq_handler()
440 	queue_work(master->base.wq, &master->ibi_work);  in svc_i3c_master_irq_handler()
447 	struct svc_i3c_master *master = to_svc_i3c_master(m);  in svc_i3c_master_bus_init()  local
456 	fclk_rate = clk_get_rate(master->fclk);  in svc_i3c_master_bus_init()
512 	writel(reg, master->regs + SVC_I3C_MCONFIG);  in svc_i3c_master_bus_init()
514 	/* Master core's registration */  in svc_i3c_master_bus_init()
522 	       master->regs + SVC_I3C_MDYNADDR);  in svc_i3c_master_bus_init()
524 	ret = i3c_master_set_info(&master->base, &info);  in svc_i3c_master_bus_init()
528 	svc_i3c_master_enable_interrupts(master, SVC_I3C_MINT_SLVSTART);  in svc_i3c_master_bus_init()
535 	struct svc_i3c_master *master = to_svc_i3c_master(m);  in svc_i3c_master_bus_cleanup()  local
537 	svc_i3c_master_disable_interrupts(master);  in svc_i3c_master_bus_cleanup()
539 	/* Disable master */  in svc_i3c_master_bus_cleanup()
540 	writel(0, master->regs + SVC_I3C_MCONFIG);  in svc_i3c_master_bus_cleanup()
543 static int svc_i3c_master_reserve_slot(struct svc_i3c_master *master)  in svc_i3c_master_reserve_slot()  argument
547 	if (!(master->free_slots & GENMASK(SVC_I3C_MAX_DEVS - 1, 0)))  in svc_i3c_master_reserve_slot()
550 	slot = ffs(master->free_slots) - 1;  in svc_i3c_master_reserve_slot()
552 	master->free_slots &= ~BIT(slot);  in svc_i3c_master_reserve_slot()
557 static void svc_i3c_master_release_slot(struct svc_i3c_master *master,  in svc_i3c_master_release_slot()  argument
560 	master->free_slots |= BIT(slot);  in svc_i3c_master_release_slot()
566 	struct svc_i3c_master *master = to_svc_i3c_master(m);  in svc_i3c_master_attach_i3c_dev()  local
570 	slot = svc_i3c_master_reserve_slot(master);  in svc_i3c_master_attach_i3c_dev()
576 		svc_i3c_master_release_slot(master, slot);  in svc_i3c_master_attach_i3c_dev()
582 	master->addrs[slot] = dev->info.dyn_addr ? dev->info.dyn_addr :  in svc_i3c_master_attach_i3c_dev()
584 	master->descs[slot] = dev;  in svc_i3c_master_attach_i3c_dev()
595 	struct svc_i3c_master *master = to_svc_i3c_master(m);  in svc_i3c_master_reattach_i3c_dev()  local
598 	master->addrs[data->index] = dev->info.dyn_addr ? dev->info.dyn_addr :  in svc_i3c_master_reattach_i3c_dev()
608 	struct svc_i3c_master *master = to_svc_i3c_master(m);  in svc_i3c_master_detach_i3c_dev()  local
610 	master->addrs[data->index] = 0;  in svc_i3c_master_detach_i3c_dev()
611 	svc_i3c_master_release_slot(master, data->index);  in svc_i3c_master_detach_i3c_dev()
619 	struct svc_i3c_master *master = to_svc_i3c_master(m);  in svc_i3c_master_attach_i2c_dev()  local
623 	slot = svc_i3c_master_reserve_slot(master);  in svc_i3c_master_attach_i2c_dev()
629 		svc_i3c_master_release_slot(master, slot);  in svc_i3c_master_attach_i2c_dev()
634 	master->addrs[slot] = dev->addr;  in svc_i3c_master_attach_i2c_dev()
645 	struct svc_i3c_master *master = to_svc_i3c_master(m);  in svc_i3c_master_detach_i2c_dev()  local
647 	svc_i3c_master_release_slot(master, data->index);  in svc_i3c_master_detach_i2c_dev()
652 static int svc_i3c_master_readb(struct svc_i3c_master *master, u8 *dst,  in svc_i3c_master_readb()  argument
659 		ret = readl_poll_timeout(master->regs + SVC_I3C_MSTATUS, reg,  in svc_i3c_master_readb()
664 		dst[i] = readl(master->regs + SVC_I3C_MRDATAB);  in svc_i3c_master_readb()
670 static int svc_i3c_master_do_daa_locked(struct svc_i3c_master *master,  in svc_i3c_master_do_daa_locked()  argument
684 		       master->regs + SVC_I3C_MCTRL);  in svc_i3c_master_do_daa_locked()
690 		ret = readl_poll_timeout(master->regs + SVC_I3C_MSTATUS, reg,  in svc_i3c_master_do_daa_locked()
705 			ret = svc_i3c_master_readb(master, data, 6);  in svc_i3c_master_do_daa_locked()
713 			ret = svc_i3c_master_readb(master, data, 2);  in svc_i3c_master_do_daa_locked()
738 				svc_i3c_master_emit_stop(master);  in svc_i3c_master_do_daa_locked()
747 		ret = readl_poll_timeout(master->regs + SVC_I3C_MSTATUS, reg,  in svc_i3c_master_do_daa_locked()
756 		ret = i3c_master_get_free_addr(&master->base, last_addr + 1);  in svc_i3c_master_do_daa_locked()
761 		dev_dbg(master->dev, "DAA: device %d assigned to 0x%02x\n",  in svc_i3c_master_do_daa_locked()
764 		writel(addrs[dev_nb], master->regs + SVC_I3C_MWDATAB);  in svc_i3c_master_do_daa_locked()
773 static int svc_i3c_update_ibirules(struct svc_i3c_master *master)  in svc_i3c_update_ibirules()  argument
782 	i3c_bus_for_each_i3cdev(&master->base.bus, dev) {  in svc_i3c_update_ibirules()
820 		writel(reg_mbyte, master->regs + SVC_I3C_IBIRULES);  in svc_i3c_update_ibirules()
822 		writel(reg_nobyte, master->regs + SVC_I3C_IBIRULES);  in svc_i3c_update_ibirules()
829 	struct svc_i3c_master *master = to_svc_i3c_master(m);  in svc_i3c_master_do_daa()  local
835 	spin_lock_irqsave(&master->xferqueue.lock, flags);  in svc_i3c_master_do_daa()
836 	ret = svc_i3c_master_do_daa_locked(master, addrs, &dev_nb);  in svc_i3c_master_do_daa()
837 	spin_unlock_irqrestore(&master->xferqueue.lock, flags);  in svc_i3c_master_do_daa()
849 	ret = svc_i3c_update_ibirules(master);  in svc_i3c_master_do_daa()
851 		dev_err(master->dev, "Cannot handle such a list of devices");  in svc_i3c_master_do_daa()
858 	svc_i3c_master_emit_stop(master);  in svc_i3c_master_do_daa()
859 	svc_i3c_master_clear_merrwarn(master);  in svc_i3c_master_do_daa()
864 static int svc_i3c_master_read(struct svc_i3c_master *master,  in svc_i3c_master_read()  argument
873 		ret = readl_poll_timeout(master->regs + SVC_I3C_MDATACTRL,  in svc_i3c_master_read()
882 			in[offset + i] = readl(master->regs + SVC_I3C_MRDATAB);  in svc_i3c_master_read()
890 static int svc_i3c_master_write(struct svc_i3c_master *master,  in svc_i3c_master_write()  argument
897 		ret = readl_poll_timeout(master->regs + SVC_I3C_MDATACTRL,  in svc_i3c_master_write()
909 			writel(out[offset++], master->regs + SVC_I3C_MWDATAB);  in svc_i3c_master_write()
911 			writel(out[offset++], master->regs + SVC_I3C_MWDATABE);  in svc_i3c_master_write()
917 static int svc_i3c_master_xfer(struct svc_i3c_master *master,  in svc_i3c_master_xfer()  argument
931 	       master->regs + SVC_I3C_MCTRL);  in svc_i3c_master_xfer()
933 	ret = readl_poll_timeout(master->regs + SVC_I3C_MSTATUS, reg,  in svc_i3c_master_xfer()
939 		ret = svc_i3c_master_read(master, in, xfer_len);  in svc_i3c_master_xfer()
941 		ret = svc_i3c_master_write(master, out, xfer_len);  in svc_i3c_master_xfer()
945 	ret = readl_poll_timeout(master->regs + SVC_I3C_MSTATUS, reg,  in svc_i3c_master_xfer()
951 		svc_i3c_master_emit_stop(master);  in svc_i3c_master_xfer()
956 	svc_i3c_master_emit_stop(master);  in svc_i3c_master_xfer()
957 	svc_i3c_master_clear_merrwarn(master);  in svc_i3c_master_xfer()
963 svc_i3c_master_alloc_xfer(struct svc_i3c_master *master, unsigned int ncmds)  in svc_i3c_master_alloc_xfer()  argument
983 static void svc_i3c_master_dequeue_xfer_locked(struct svc_i3c_master *master,  in svc_i3c_master_dequeue_xfer_locked()  argument
986 	if (master->xferqueue.cur == xfer)  in svc_i3c_master_dequeue_xfer_locked()
987 		master->xferqueue.cur = NULL;  in svc_i3c_master_dequeue_xfer_locked()
992 static void svc_i3c_master_dequeue_xfer(struct svc_i3c_master *master,  in svc_i3c_master_dequeue_xfer()  argument
997 	spin_lock_irqsave(&master->xferqueue.lock, flags);  in svc_i3c_master_dequeue_xfer()
998 	svc_i3c_master_dequeue_xfer_locked(master, xfer);  in svc_i3c_master_dequeue_xfer()
999 	spin_unlock_irqrestore(&master->xferqueue.lock, flags);  in svc_i3c_master_dequeue_xfer()
1002 static void svc_i3c_master_start_xfer_locked(struct svc_i3c_master *master)  in svc_i3c_master_start_xfer_locked()  argument
1004 	struct svc_i3c_xfer *xfer = master->xferqueue.cur;  in svc_i3c_master_start_xfer_locked()
1013 		ret = svc_i3c_master_xfer(master, cmd->rnw, xfer->type,  in svc_i3c_master_start_xfer_locked()
1025 		svc_i3c_master_dequeue_xfer_locked(master, xfer);  in svc_i3c_master_start_xfer_locked()
1027 	xfer = list_first_entry_or_null(&master->xferqueue.list,  in svc_i3c_master_start_xfer_locked()
1033 	master->xferqueue.cur = xfer;  in svc_i3c_master_start_xfer_locked()
1034 	svc_i3c_master_start_xfer_locked(master);  in svc_i3c_master_start_xfer_locked()
1037 static void svc_i3c_master_enqueue_xfer(struct svc_i3c_master *master,  in svc_i3c_master_enqueue_xfer()  argument
1043 	spin_lock_irqsave(&master->xferqueue.lock, flags);  in svc_i3c_master_enqueue_xfer()
1044 	if (master->xferqueue.cur) {  in svc_i3c_master_enqueue_xfer()
1045 		list_add_tail(&xfer->node, &master->xferqueue.list);  in svc_i3c_master_enqueue_xfer()
1047 		master->xferqueue.cur = xfer;  in svc_i3c_master_enqueue_xfer()
1048 		svc_i3c_master_start_xfer_locked(master);  in svc_i3c_master_enqueue_xfer()
1050 	spin_unlock_irqrestore(&master->xferqueue.lock, flags);  in svc_i3c_master_enqueue_xfer()
1054 svc_i3c_master_supports_ccc_cmd(struct i3c_master_controller *master,  in svc_i3c_master_supports_ccc_cmd()  argument
1061 static int svc_i3c_master_send_bdcast_ccc_cmd(struct svc_i3c_master *master,  in svc_i3c_master_send_bdcast_ccc_cmd()  argument
1070 	xfer = svc_i3c_master_alloc_xfer(master, 1);  in svc_i3c_master_send_bdcast_ccc_cmd()
1094 	svc_i3c_master_enqueue_xfer(master, xfer);  in svc_i3c_master_send_bdcast_ccc_cmd()
1096 		svc_i3c_master_dequeue_xfer(master, xfer);  in svc_i3c_master_send_bdcast_ccc_cmd()
1105 static int svc_i3c_master_send_direct_ccc_cmd(struct svc_i3c_master *master,  in svc_i3c_master_send_direct_ccc_cmd()  argument
1114 	xfer = svc_i3c_master_alloc_xfer(master, 2);  in svc_i3c_master_send_direct_ccc_cmd()
1140 	svc_i3c_master_enqueue_xfer(master, xfer);  in svc_i3c_master_send_direct_ccc_cmd()
1142 		svc_i3c_master_dequeue_xfer(master, xfer);  in svc_i3c_master_send_direct_ccc_cmd()
1153 	struct svc_i3c_master *master = to_svc_i3c_master(m);  in svc_i3c_master_send_ccc_cmd()  local
1157 		return svc_i3c_master_send_bdcast_ccc_cmd(master, cmd);  in svc_i3c_master_send_ccc_cmd()
1159 		return svc_i3c_master_send_direct_ccc_cmd(master, cmd);  in svc_i3c_master_send_ccc_cmd()
1167 	struct svc_i3c_master *master = to_svc_i3c_master(m);  in svc_i3c_master_priv_xfers()  local
1172 	xfer = svc_i3c_master_alloc_xfer(master, nxfers);  in svc_i3c_master_priv_xfers()
1181 		cmd->addr = master->addrs[data->index];  in svc_i3c_master_priv_xfers()
1190 	svc_i3c_master_enqueue_xfer(master, xfer);  in svc_i3c_master_priv_xfers()
1192 		svc_i3c_master_dequeue_xfer(master, xfer);  in svc_i3c_master_priv_xfers()
1205 	struct svc_i3c_master *master = to_svc_i3c_master(m);  in svc_i3c_master_i2c_xfers()  local
1210 	xfer = svc_i3c_master_alloc_xfer(master, nxfers);  in svc_i3c_master_i2c_xfers()
1219 		cmd->addr = master->addrs[data->index];  in svc_i3c_master_i2c_xfers()
1228 	svc_i3c_master_enqueue_xfer(master, xfer);  in svc_i3c_master_i2c_xfers()
1230 		svc_i3c_master_dequeue_xfer(master, xfer);  in svc_i3c_master_i2c_xfers()
1242 	struct svc_i3c_master *master = to_svc_i3c_master(m);  in svc_i3c_master_request_ibi()  local
1248 		dev_err(master->dev, "IBI max payload %d should be < %d\n",  in svc_i3c_master_request_ibi()
1257 	spin_lock_irqsave(&master->ibi.lock, flags);  in svc_i3c_master_request_ibi()
1258 	for (i = 0; i < master->ibi.num_slots; i++) {  in svc_i3c_master_request_ibi()
1259 		if (!master->ibi.slots[i]) {  in svc_i3c_master_request_ibi()
1261 			master->ibi.slots[i] = dev;  in svc_i3c_master_request_ibi()
1265 	spin_unlock_irqrestore(&master->ibi.lock, flags);  in svc_i3c_master_request_ibi()
1267 	if (i < master->ibi.num_slots)  in svc_i3c_master_request_ibi()
1279 	struct svc_i3c_master *master = to_svc_i3c_master(m);  in svc_i3c_master_free_ibi()  local
1283 	spin_lock_irqsave(&master->ibi.lock, flags);  in svc_i3c_master_free_ibi()
1284 	master->ibi.slots[data->ibi] = NULL;  in svc_i3c_master_free_ibi()
1286 	spin_unlock_irqrestore(&master->ibi.lock, flags);  in svc_i3c_master_free_ibi()
1333 static void svc_i3c_master_reset(struct svc_i3c_master *master)  in svc_i3c_master_reset()  argument
1338 	writel(readl(master->regs + SVC_I3C_MERRWARN),  in svc_i3c_master_reset()
1339 	       master->regs + SVC_I3C_MERRWARN);  in svc_i3c_master_reset()
1347 	writel(reg, master->regs + SVC_I3C_MDATACTRL);  in svc_i3c_master_reset()
1349 	svc_i3c_master_disable_interrupts(master);  in svc_i3c_master_reset()
1355 	struct svc_i3c_master *master;  in svc_i3c_master_probe()  local
1358 	master = devm_kzalloc(dev, sizeof(*master), GFP_KERNEL);  in svc_i3c_master_probe()
1359 	if (!master)  in svc_i3c_master_probe()
1362 	master->regs = devm_platform_ioremap_resource(pdev, 0);  in svc_i3c_master_probe()
1363 	if (IS_ERR(master->regs))  in svc_i3c_master_probe()
1364 		return PTR_ERR(master->regs);  in svc_i3c_master_probe()
1366 	master->pclk = devm_clk_get(dev, "pclk");  in svc_i3c_master_probe()
1367 	if (IS_ERR(master->pclk))  in svc_i3c_master_probe()
1368 		return PTR_ERR(master->pclk);  in svc_i3c_master_probe()
1370 	master->fclk = devm_clk_get(dev, "fast_clk");  in svc_i3c_master_probe()
1371 	if (IS_ERR(master->fclk))  in svc_i3c_master_probe()
1372 		return PTR_ERR(master->fclk);  in svc_i3c_master_probe()
1374 	master->sclk = devm_clk_get(dev, "slow_clk");  in svc_i3c_master_probe()
1375 	if (IS_ERR(master->sclk))  in svc_i3c_master_probe()
1376 		return PTR_ERR(master->sclk);  in svc_i3c_master_probe()
1378 	master->irq = platform_get_irq(pdev, 0);  in svc_i3c_master_probe()
1379 	if (master->irq <= 0)  in svc_i3c_master_probe()
1382 	master->dev = dev;  in svc_i3c_master_probe()
1384 	svc_i3c_master_reset(master);  in svc_i3c_master_probe()
1386 	ret = clk_prepare_enable(master->pclk);  in svc_i3c_master_probe()
1390 	ret = clk_prepare_enable(master->fclk);  in svc_i3c_master_probe()
1394 	ret = clk_prepare_enable(master->sclk);  in svc_i3c_master_probe()
1398 	INIT_WORK(&master->hj_work, svc_i3c_master_hj_work);  in svc_i3c_master_probe()
1399 	INIT_WORK(&master->ibi_work, svc_i3c_master_ibi_work);  in svc_i3c_master_probe()
1400 	ret = devm_request_irq(dev, master->irq, svc_i3c_master_irq_handler,  in svc_i3c_master_probe()
1401 			       IRQF_NO_SUSPEND, "svc-i3c-irq", master);  in svc_i3c_master_probe()
1405 	master->free_slots = GENMASK(SVC_I3C_MAX_DEVS - 1, 0);  in svc_i3c_master_probe()
1407 	spin_lock_init(&master->xferqueue.lock);  in svc_i3c_master_probe()
1408 	INIT_LIST_HEAD(&master->xferqueue.list);  in svc_i3c_master_probe()
1410 	spin_lock_init(&master->ibi.lock);  in svc_i3c_master_probe()
1411 	master->ibi.num_slots = SVC_I3C_MAX_DEVS;  in svc_i3c_master_probe()
1412 	master->ibi.slots = devm_kcalloc(&pdev->dev, master->ibi.num_slots,  in svc_i3c_master_probe()
1413 					 sizeof(*master->ibi.slots),  in svc_i3c_master_probe()
1415 	if (!master->ibi.slots) {  in svc_i3c_master_probe()
1420 	platform_set_drvdata(pdev, master);  in svc_i3c_master_probe()
1422 	/* Register the master */  in svc_i3c_master_probe()
1423 	ret = i3c_master_register(&master->base, &pdev->dev,  in svc_i3c_master_probe()
1431 	clk_disable_unprepare(master->sclk);  in svc_i3c_master_probe()
1434 	clk_disable_unprepare(master->fclk);  in svc_i3c_master_probe()
1437 	clk_disable_unprepare(master->pclk);  in svc_i3c_master_probe()
1444 	struct svc_i3c_master *master = platform_get_drvdata(pdev);  in svc_i3c_master_remove()  local
1447 	ret = i3c_master_unregister(&master->base);  in svc_i3c_master_remove()
1451 	clk_disable_unprepare(master->pclk);  in svc_i3c_master_remove()
1452 	clk_disable_unprepare(master->fclk);  in svc_i3c_master_remove()
1453 	clk_disable_unprepare(master->sclk);  in svc_i3c_master_remove()
1459 	{ .compatible = "silvaco,i3c-master" },
1467 		.name = "silvaco-i3c-master",
1475 MODULE_DESCRIPTION("Silvaco dual-role I3C master driver");