198 static inline u32 cdns_readl(struct sdw_cdns *cdns, int offset)  in cdns_readl()  argument
200 	return readl(cdns->registers + offset);  in cdns_readl()
203 static inline void cdns_writel(struct sdw_cdns *cdns, int offset, u32 value)  in cdns_writel()  argument
205 	writel(value, cdns->registers + offset);  in cdns_writel()
208 static inline void cdns_updatel(struct sdw_cdns *cdns,  in cdns_updatel()  argument
213 	tmp = cdns_readl(cdns, offset);  in cdns_updatel()
215 	cdns_writel(cdns, offset, tmp);  in cdns_updatel()
218 static int cdns_set_wait(struct sdw_cdns *cdns, int offset, u32 mask, u32 value)  in cdns_set_wait()  argument
225 		reg_read = readl(cdns->registers + offset);  in cdns_set_wait()
236 static int cdns_clear_bit(struct sdw_cdns *cdns, int offset, u32 value)  in cdns_clear_bit()  argument
238 	writel(value, cdns->registers + offset);  in cdns_clear_bit()
241 	return cdns_set_wait(cdns, offset, value, 0);  in cdns_clear_bit()
248 static int cdns_config_update(struct sdw_cdns *cdns)  in cdns_config_update()  argument
252 	if (sdw_cdns_is_clock_stop(cdns)) {  in cdns_config_update()
253 		dev_err(cdns->dev, "Cannot program MCP_CONFIG_UPDATE in ClockStopMode\n");  in cdns_config_update()
257 	ret = cdns_clear_bit(cdns, CDNS_MCP_CONFIG_UPDATE,  in cdns_config_update()
260 		dev_err(cdns->dev, "Config update timedout\n");  in cdns_config_update()
272 static ssize_t cdns_sprintf(struct sdw_cdns *cdns,  in cdns_sprintf()  argument
276 			 "%4x\t%8x\n", reg, cdns_readl(cdns, reg));  in cdns_sprintf()
281 	struct sdw_cdns *cdns = s->private;  in cdns_reg_show()  local
295 		ret += cdns_sprintf(cdns, buf, ret, i);  in cdns_reg_show()
301 		ret += cdns_sprintf(cdns, buf, ret, i);  in cdns_reg_show()
305 	ret += cdns_sprintf(cdns, buf, ret, CDNS_MCP_SSP_CTRL0);  in cdns_reg_show()
306 	ret += cdns_sprintf(cdns, buf, ret, CDNS_MCP_SSP_CTRL1);  in cdns_reg_show()
307 	ret += cdns_sprintf(cdns, buf, ret, CDNS_MCP_CLK_CTRL0);  in cdns_reg_show()
308 	ret += cdns_sprintf(cdns, buf, ret, CDNS_MCP_CLK_CTRL1);  in cdns_reg_show()
313 	num_ports = cdns->num_ports;  in cdns_reg_show()
320 			ret += cdns_sprintf(cdns, buf, ret, j);  in cdns_reg_show()
331 			ret += cdns_sprintf(cdns, buf, ret, j);  in cdns_reg_show()
337 		ret += cdns_sprintf(cdns, buf, ret,  in cdns_reg_show()
345 		ret += cdns_sprintf(cdns, buf, ret, CDNS_PDI_CONFIG(i));  in cdns_reg_show()
356 	struct sdw_cdns *cdns = data;  in cdns_hw_reset()  local
365 	ret = sdw_cdns_exit_reset(cdns);  in cdns_hw_reset()
367 	dev_dbg(cdns->dev, "link hw_reset done: %d\n", ret);  in cdns_hw_reset()
376 	struct sdw_cdns *cdns = data;  in cdns_parity_error_injection()  local
383 	bus = &cdns->bus;  in cdns_parity_error_injection()
391 		dev_err_ratelimited(cdns->dev,  in cdns_parity_error_injection()
411 	cdns_updatel(cdns, CDNS_MCP_CMDCTRL,  in cdns_parity_error_injection()
416 	cdns_updatel(cdns, CDNS_MCP_CONFIG_UPDATE,  in cdns_parity_error_injection()
421 	ret = sdw_bread_no_pm_unlocked(&cdns->bus, 0xf, SDW_SCP_DEVID_0);  in cdns_parity_error_injection()
422 	dev_info(cdns->dev, "parity error injection, read: %d\n", ret);  in cdns_parity_error_injection()
425 	cdns_updatel(cdns, CDNS_MCP_CMDCTRL,  in cdns_parity_error_injection()
430 	cdns_updatel(cdns, CDNS_MCP_CONFIG_UPDATE,  in cdns_parity_error_injection()
455  * @cdns: Cadence instance
458 void sdw_cdns_debugfs_init(struct sdw_cdns *cdns, struct dentry *root)  in sdw_cdns_debugfs_init()  argument
460 	debugfs_create_file("cdns-registers", 0400, root, cdns, &cdns_reg_fops);  in sdw_cdns_debugfs_init()
462 	debugfs_create_file("cdns-hw-reset", 0200, root, cdns,  in sdw_cdns_debugfs_init()
465 	debugfs_create_file("cdns-parity-error-injection", 0200, root, cdns,  in sdw_cdns_debugfs_init()
476 cdns_fill_msg_resp(struct sdw_cdns *cdns,  in cdns_fill_msg_resp()  argument
484 		if (!(cdns->response_buf[i] & CDNS_MCP_RESP_ACK)) {  in cdns_fill_msg_resp()
486 			dev_dbg_ratelimited(cdns->dev, "Msg Ack not received\n");  in cdns_fill_msg_resp()
488 		if (cdns->response_buf[i] & CDNS_MCP_RESP_NACK) {  in cdns_fill_msg_resp()
490 			dev_err_ratelimited(cdns->dev, "Msg NACK received\n");  in cdns_fill_msg_resp()
495 		dev_err_ratelimited(cdns->dev, "Msg NACKed for Slave %d\n", msg->dev_num);  in cdns_fill_msg_resp()
500 		dev_dbg_ratelimited(cdns->dev, "Msg ignored for Slave %d\n", msg->dev_num);  in cdns_fill_msg_resp()
508 							 cdns->response_buf[i]);  in cdns_fill_msg_resp()
515 _cdns_xfer_msg(struct sdw_cdns *cdns, struct sdw_msg *msg, int cmd,  in _cdns_xfer_msg()  argument
523 	if (cdns->msg_count != count) {  in _cdns_xfer_msg()
524 		cdns_writel(cdns, CDNS_MCP_FIFOLEVEL, count);  in _cdns_xfer_msg()
525 		cdns->msg_count = count;  in _cdns_xfer_msg()
541 		cdns_writel(cdns, base, data);  in _cdns_xfer_msg()
549 	time = wait_for_completion_timeout(&cdns->tx_complete,  in _cdns_xfer_msg()
552 		dev_err(cdns->dev, "IO transfer timed out, cmd %d device %d addr %x len %d\n",  in _cdns_xfer_msg()
558 	return cdns_fill_msg_resp(cdns, msg, count, offset);  in _cdns_xfer_msg()
562 cdns_program_scp_addr(struct sdw_cdns *cdns, struct sdw_msg *msg)  in cdns_program_scp_addr()  argument
570 	if (cdns->msg_count != CDNS_SCP_RX_FIFOLEVEL) {  in cdns_program_scp_addr()
571 		cdns_writel(cdns, CDNS_MCP_FIFOLEVEL, CDNS_SCP_RX_FIFOLEVEL);  in cdns_program_scp_addr()
572 		cdns->msg_count = CDNS_SCP_RX_FIFOLEVEL;  in cdns_program_scp_addr()
586 	cdns_writel(cdns, base, data[0]);  in cdns_program_scp_addr()
588 	cdns_writel(cdns, base, data[1]);  in cdns_program_scp_addr()
590 	time = wait_for_completion_timeout(&cdns->tx_complete,  in cdns_program_scp_addr()
593 		dev_err(cdns->dev, "SCP Msg trf timed out\n");  in cdns_program_scp_addr()
600 		if (!(cdns->response_buf[i] & CDNS_MCP_RESP_ACK)) {  in cdns_program_scp_addr()
602 			dev_err(cdns->dev, "Program SCP Ack not received\n");  in cdns_program_scp_addr()
603 			if (cdns->response_buf[i] & CDNS_MCP_RESP_NACK) {  in cdns_program_scp_addr()
605 				dev_err(cdns->dev, "Program SCP NACK received\n");  in cdns_program_scp_addr()
612 		dev_err_ratelimited(cdns->dev,  in cdns_program_scp_addr()
618 		dev_dbg_ratelimited(cdns->dev,  in cdns_program_scp_addr()
626 static int cdns_prep_msg(struct sdw_cdns *cdns, struct sdw_msg *msg, int *cmd)  in cdns_prep_msg()  argument
631 		ret = cdns_program_scp_addr(cdns, msg);  in cdns_prep_msg()
648 		dev_err(cdns->dev, "Invalid msg cmd: %d\n", msg->flags);  in cdns_prep_msg()
658 	struct sdw_cdns *cdns = bus_to_cdns(bus);  in cdns_xfer_msg()  local
661 	ret = cdns_prep_msg(cdns, msg, &cmd);  in cdns_xfer_msg()
666 		ret = _cdns_xfer_msg(cdns, msg, cmd, i * CDNS_MCP_CMD_LEN,  in cdns_xfer_msg()
675 	ret = _cdns_xfer_msg(cdns, msg, cmd, i * CDNS_MCP_CMD_LEN,  in cdns_xfer_msg()
687 	struct sdw_cdns *cdns = bus_to_cdns(bus);  in cdns_xfer_msg_defer()  local
694 	ret = cdns_prep_msg(cdns, msg, &cmd);  in cdns_xfer_msg_defer()
698 	cdns->defer = defer;  in cdns_xfer_msg_defer()
699 	cdns->defer->length = msg->len;  in cdns_xfer_msg_defer()
701 	return _cdns_xfer_msg(cdns, msg, cmd, 0, msg->len, true);  in cdns_xfer_msg_defer()
708 	struct sdw_cdns *cdns = bus_to_cdns(bus);  in cdns_reset_page_addr()  local
715 	return cdns_program_scp_addr(cdns, &msg);  in cdns_reset_page_addr()
723 static void cdns_read_response(struct sdw_cdns *cdns)  in cdns_read_response()  argument
728 	num_resp = cdns_readl(cdns, CDNS_MCP_FIFOSTAT);  in cdns_read_response()
734 		cdns->response_buf[i] = cdns_readl(cdns, cmd_base);  in cdns_read_response()
739 static int cdns_update_slave_status(struct sdw_cdns *cdns,  in cdns_update_slave_status()  argument
785 			dev_warn_ratelimited(cdns->dev,  in cdns_update_slave_status()
790 			val = cdns_readl(cdns, CDNS_MCP_SLAVE_STAT);  in cdns_update_slave_status()
809 			dev_warn_ratelimited(cdns->dev,  in cdns_update_slave_status()
817 		return sdw_handle_slave_status(&cdns->bus, status);  in cdns_update_slave_status()
829 	struct sdw_cdns *cdns = dev_id;  in sdw_cdns_irq()  local
834 	if (!cdns->link_up)  in sdw_cdns_irq()
837 	int_status = cdns_readl(cdns, CDNS_MCP_INTSTAT);  in sdw_cdns_irq()
847 		cdns_read_response(cdns);  in sdw_cdns_irq()
849 		if (cdns->defer) {  in sdw_cdns_irq()
850 			cdns_fill_msg_resp(cdns, cdns->defer->msg,  in sdw_cdns_irq()
851 					   cdns->defer->length, 0);  in sdw_cdns_irq()
852 			complete(&cdns->defer->complete);  in sdw_cdns_irq()
853 			cdns->defer = NULL;  in sdw_cdns_irq()
855 			complete(&cdns->tx_complete);  in sdw_cdns_irq()
861 		dev_err_ratelimited(cdns->dev, "Parity error\n");  in sdw_cdns_irq()
866 		dev_err_ratelimited(cdns->dev, "Bus clash for control word\n");  in sdw_cdns_irq()
874 		dev_err_ratelimited(cdns->dev, "Bus clash for data word\n");  in sdw_cdns_irq()
877 	if (cdns->bus.params.m_data_mode != SDW_PORT_DATA_MODE_NORMAL &&  in sdw_cdns_irq()
882 		port_intstat = cdns_readl(cdns, CDNS_MCP_PORT_INTSTAT);  in sdw_cdns_irq()
883 		dev_err_ratelimited(cdns->dev, "DP interrupt: PortIntStat %8x\n",  in sdw_cdns_irq()
887 		cdns_writel(cdns, CDNS_MCP_PORT_INTSTAT, port_intstat);  in sdw_cdns_irq()
892 		cdns_updatel(cdns, CDNS_MCP_INTMASK,  in sdw_cdns_irq()
904 		if (cdns->interrupt_enabled)  in sdw_cdns_irq()
905 			schedule_work(&cdns->work);  in sdw_cdns_irq()
908 	cdns_writel(cdns, CDNS_MCP_INTSTAT, int_status);  in sdw_cdns_irq()
917  * @work: cdns worker thread
921 	struct sdw_cdns *cdns =  in cdns_update_slave_status_work()  local
925 	dev_dbg_ratelimited(cdns->dev, "Slave status change\n");  in cdns_update_slave_status_work()
927 	slave0 = cdns_readl(cdns, CDNS_MCP_SLAVE_INTSTAT0);  in cdns_update_slave_status_work()
928 	slave1 = cdns_readl(cdns, CDNS_MCP_SLAVE_INTSTAT1);  in cdns_update_slave_status_work()
930 	cdns_update_slave_status(cdns, slave0, slave1);  in cdns_update_slave_status_work()
931 	cdns_writel(cdns, CDNS_MCP_SLAVE_INTSTAT0, slave0);  in cdns_update_slave_status_work()
932 	cdns_writel(cdns, CDNS_MCP_SLAVE_INTSTAT1, slave1);  in cdns_update_slave_status_work()
935 	cdns_writel(cdns, CDNS_MCP_INTSTAT, CDNS_MCP_INT_SLAVE_MASK);  in cdns_update_slave_status_work()
936 	cdns_updatel(cdns, CDNS_MCP_INTMASK,  in cdns_update_slave_status_work()
947  * @cdns: Cadence instance
949 int sdw_cdns_exit_reset(struct sdw_cdns *cdns)  in sdw_cdns_exit_reset()  argument
952 	cdns_updatel(cdns, CDNS_MCP_CONTROL,  in sdw_cdns_exit_reset()
957 	cdns_updatel(cdns, CDNS_MCP_CONTROL,  in sdw_cdns_exit_reset()
962 	cdns_updatel(cdns, CDNS_MCP_CONFIG_UPDATE,  in sdw_cdns_exit_reset()
974  * @cdns: Cadence instance
977 static void cdns_enable_slave_interrupts(struct sdw_cdns *cdns, bool state)  in cdns_enable_slave_interrupts()  argument
981 	mask = cdns_readl(cdns, CDNS_MCP_INTMASK);  in cdns_enable_slave_interrupts()
987 	cdns_writel(cdns, CDNS_MCP_INTMASK, mask);  in cdns_enable_slave_interrupts()
992  * @cdns: Cadence instance
995 int sdw_cdns_enable_interrupt(struct sdw_cdns *cdns, bool state)  in sdw_cdns_enable_interrupt()  argument
1015 	if (cdns->bus.params.m_data_mode != SDW_PORT_DATA_MODE_NORMAL)  in sdw_cdns_enable_interrupt()
1035 		slave_state = cdns_readl(cdns, CDNS_MCP_SLAVE_INTSTAT0);  in sdw_cdns_enable_interrupt()
1036 		cdns_writel(cdns, CDNS_MCP_SLAVE_INTSTAT0, slave_state);  in sdw_cdns_enable_interrupt()
1037 		slave_state = cdns_readl(cdns, CDNS_MCP_SLAVE_INTSTAT1);  in sdw_cdns_enable_interrupt()
1038 		cdns_writel(cdns, CDNS_MCP_SLAVE_INTSTAT1, slave_state);  in sdw_cdns_enable_interrupt()
1040 	cdns->interrupt_enabled = state;  in sdw_cdns_enable_interrupt()
1052 		cancel_work_sync(&cdns->work);  in sdw_cdns_enable_interrupt()
1054 	cdns_writel(cdns, CDNS_MCP_SLAVE_INTMASK0, slave_intmask0);  in sdw_cdns_enable_interrupt()
1055 	cdns_writel(cdns, CDNS_MCP_SLAVE_INTMASK1, slave_intmask1);  in sdw_cdns_enable_interrupt()
1056 	cdns_writel(cdns, CDNS_MCP_INTMASK, mask);  in sdw_cdns_enable_interrupt()
1062 static int cdns_allocate_pdi(struct sdw_cdns *cdns,  in cdns_allocate_pdi()  argument
1072 	pdi = devm_kcalloc(cdns->dev, num, sizeof(*pdi), GFP_KERNEL);  in cdns_allocate_pdi()
1087  * @cdns: Cadence instance
1090 int sdw_cdns_pdi_init(struct sdw_cdns *cdns,  in sdw_cdns_pdi_init()  argument
1097 	cdns->pcm.num_bd = config.pcm_bd;  in sdw_cdns_pdi_init()
1098 	cdns->pcm.num_in = config.pcm_in;  in sdw_cdns_pdi_init()
1099 	cdns->pcm.num_out = config.pcm_out;  in sdw_cdns_pdi_init()
1100 	cdns->pdm.num_bd = config.pdm_bd;  in sdw_cdns_pdi_init()
1101 	cdns->pdm.num_in = config.pdm_in;  in sdw_cdns_pdi_init()
1102 	cdns->pdm.num_out = config.pdm_out;  in sdw_cdns_pdi_init()
1105 	stream = &cdns->pcm;  in sdw_cdns_pdi_init()
1110 	ret = cdns_allocate_pdi(cdns, &stream->bd,  in sdw_cdns_pdi_init()
1117 	ret = cdns_allocate_pdi(cdns, &stream->in,  in sdw_cdns_pdi_init()
1124 	ret = cdns_allocate_pdi(cdns, &stream->out,  in sdw_cdns_pdi_init()
1131 	cdns->num_ports = stream->num_pdi;  in sdw_cdns_pdi_init()
1134 	stream = &cdns->pdm;  in sdw_cdns_pdi_init()
1135 	ret = cdns_allocate_pdi(cdns, &stream->bd,  in sdw_cdns_pdi_init()
1142 	ret = cdns_allocate_pdi(cdns, &stream->in,  in sdw_cdns_pdi_init()
1149 	ret = cdns_allocate_pdi(cdns, &stream->out,  in sdw_cdns_pdi_init()
1157 	cdns->num_ports += stream->num_pdi;  in sdw_cdns_pdi_init()
1178 static void cdns_init_clock_ctrl(struct sdw_cdns *cdns)  in cdns_init_clock_ctrl()  argument
1180 	struct sdw_bus *bus = &cdns->bus;  in cdns_init_clock_ctrl()
1189 	cdns_updatel(cdns, CDNS_MCP_CLK_CTRL0,  in cdns_init_clock_ctrl()
1191 	cdns_updatel(cdns, CDNS_MCP_CLK_CTRL1,  in cdns_init_clock_ctrl()
1200 	cdns_writel(cdns, CDNS_MCP_FRAME_SHAPE_INIT, val);  in cdns_init_clock_ctrl()
1204 	cdns_writel(cdns, CDNS_MCP_SSP_CTRL0, ssp_interval);  in cdns_init_clock_ctrl()
1205 	cdns_writel(cdns, CDNS_MCP_SSP_CTRL1, ssp_interval);  in cdns_init_clock_ctrl()
1210  * @cdns: Cadence instance
1212 int sdw_cdns_init(struct sdw_cdns *cdns)  in sdw_cdns_init()  argument
1216 	cdns_init_clock_ctrl(cdns);  in sdw_cdns_init()
1219 	cdns->msg_count = cdns_readl(cdns, CDNS_MCP_FIFOLEVEL);  in sdw_cdns_init()
1222 	cdns_updatel(cdns, CDNS_MCP_CONTROL, CDNS_MCP_CONTROL_CMD_RST,  in sdw_cdns_init()
1226 	cdns_updatel(cdns, CDNS_MCP_CONTROL, CDNS_MCP_CONTROL_CMD_ACCEPT,  in sdw_cdns_init()
1230 	val = cdns_readl(cdns, CDNS_MCP_CONFIG);  in sdw_cdns_init()
1245 	if (cdns->bus.multi_link)  in sdw_cdns_init()
1253 	cdns_writel(cdns, CDNS_MCP_CONFIG, val);  in sdw_cdns_init()
1263 	struct sdw_cdns *cdns = bus_to_cdns(bus);  in cdns_bus_conf()  local
1268 		dev_err(cdns->dev, "NULL curr_dr_freq\n");  in cdns_bus_conf()
1281 	cdns_updatel(cdns, mcp_clkctrl_off, CDNS_MCP_CLK_MCLKD_MASK, divider);  in cdns_bus_conf()
1290 	struct sdw_cdns *cdns = bus_to_cdns(bus);  in cdns_port_params()  local
1298 	dpn_config = cdns_readl(cdns, dpn_config_off);  in cdns_port_params()
1304 	cdns_writel(cdns, dpn_config_off, dpn_config);  in cdns_port_params()
1313 	struct sdw_cdns *cdns = bus_to_cdns(bus);  in cdns_transport_params()  local
1337 	dpn_config = cdns_readl(cdns, dpn_config_off);  in cdns_transport_params()
1340 	cdns_writel(cdns, dpn_config_off, dpn_config);  in cdns_transport_params()
1344 	cdns_writel(cdns, dpn_offsetctrl_off,  dpn_offsetctrl);  in cdns_transport_params()
1350 	cdns_writel(cdns, dpn_hctrl_off, dpn_hctrl);  in cdns_transport_params()
1351 	cdns_writel(cdns, dpn_samplectrl_off, (t_params->sample_interval - 1));  in cdns_transport_params()
1359 	struct sdw_cdns *cdns = bus_to_cdns(bus);  in cdns_port_enable()  local
1368 	cdns_writel(cdns, dpn_chnen_off, ch_mask);  in cdns_port_enable()
1382  * @cdns: Cadence instance
1384 bool sdw_cdns_is_clock_stop(struct sdw_cdns *cdns)  in sdw_cdns_is_clock_stop()  argument
1386 	return !!(cdns_readl(cdns, CDNS_MCP_STAT) & CDNS_MCP_STAT_CLK_STOP);  in sdw_cdns_is_clock_stop()
1393  * @cdns: Cadence instance
1396 int sdw_cdns_clock_stop(struct sdw_cdns *cdns, bool block_wake)  in sdw_cdns_clock_stop()  argument
1403 	if (sdw_cdns_is_clock_stop(cdns)) {  in sdw_cdns_clock_stop()
1404 		dev_dbg(cdns->dev, "Clock is already stopped\n");  in sdw_cdns_clock_stop()
1413 	cdns_enable_slave_interrupts(cdns, false);  in sdw_cdns_clock_stop()
1421 		cdns_updatel(cdns, CDNS_MCP_CONTROL,  in sdw_cdns_clock_stop()
1425 	list_for_each_entry(slave, &cdns->bus.slaves, node) {  in sdw_cdns_clock_stop()
1440 		cdns_updatel(cdns, CDNS_MCP_CONTROL,  in sdw_cdns_clock_stop()
1444 		cdns_updatel(cdns, CDNS_MCP_CONTROL,  in sdw_cdns_clock_stop()
1448 	ret = cdns_config_update(cdns);  in sdw_cdns_clock_stop()
1450 		dev_err(cdns->dev, "%s: config_update failed\n", __func__);  in sdw_cdns_clock_stop()
1456 		ret = sdw_bus_prep_clk_stop(&cdns->bus);  in sdw_cdns_clock_stop()
1458 			dev_err(cdns->dev, "prepare clock stop failed %d\n", ret);  in sdw_cdns_clock_stop()
1467 	ret = sdw_bus_clk_stop(&cdns->bus);  in sdw_cdns_clock_stop()
1469 		dev_err(cdns->dev, "bus clock stop failed %d", ret);  in sdw_cdns_clock_stop()
1473 	ret = cdns_set_wait(cdns, CDNS_MCP_STAT,  in sdw_cdns_clock_stop()
1477 		dev_err(cdns->dev, "Clock stop failed %d\n", ret);  in sdw_cdns_clock_stop()
1486  * @cdns: Cadence instance
1490 int sdw_cdns_clock_restart(struct sdw_cdns *cdns, bool bus_reset)  in sdw_cdns_clock_restart()  argument
1495 	cdns_enable_slave_interrupts(cdns, true);  in sdw_cdns_clock_restart()
1497 	ret = cdns_clear_bit(cdns, CDNS_MCP_CONTROL,  in sdw_cdns_clock_restart()
1500 		dev_err(cdns->dev, "Couldn't exit from clock stop\n");  in sdw_cdns_clock_restart()
1504 	ret = cdns_set_wait(cdns, CDNS_MCP_STAT, CDNS_MCP_STAT_CLK_STOP, 0);  in sdw_cdns_clock_restart()
1506 		dev_err(cdns->dev, "clock stop exit failed %d\n", ret);  in sdw_cdns_clock_restart()
1510 	cdns_updatel(cdns, CDNS_MCP_CONTROL,  in sdw_cdns_clock_restart()
1517 	cdns_updatel(cdns, CDNS_MCP_CONTROL, CDNS_MCP_CONTROL_CMD_ACCEPT, 0);  in sdw_cdns_clock_restart()
1522 		cdns_updatel(cdns, CDNS_MCP_CONFIG,  in sdw_cdns_clock_restart()
1526 		ret = cdns_config_update(cdns);  in sdw_cdns_clock_restart()
1528 			dev_err(cdns->dev, "%s: config_update failed\n", __func__);  in sdw_cdns_clock_restart()
1532 		ret = sdw_bus_exit_clk_stop(&cdns->bus);  in sdw_cdns_clock_restart()
1534 			dev_err(cdns->dev, "bus failed to exit clock stop %d\n", ret);  in sdw_cdns_clock_restart()
1543  * @cdns: Cadence instance
1545 int sdw_cdns_probe(struct sdw_cdns *cdns)  in sdw_cdns_probe()  argument
1547 	init_completion(&cdns->tx_complete);  in sdw_cdns_probe()
1548 	cdns->bus.port_ops = &cdns_port_ops;  in sdw_cdns_probe()
1550 	INIT_WORK(&cdns->work, cdns_update_slave_status_work);  in sdw_cdns_probe()
1558 	struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);  in cdns_set_sdw_stream()  local
1585 		dma->bus = &cdns->bus;  in cdns_set_sdw_stream()
1586 		dma->link_id = cdns->instance;  in cdns_set_sdw_stream()
1611  * @cdns: Cadence instance
1620 static struct sdw_cdns_pdi *cdns_find_pdi(struct sdw_cdns *cdns,  in cdns_find_pdi()  argument
1638  * @cdns: Cadence instance
1643 void sdw_cdns_config_stream(struct sdw_cdns *cdns,  in sdw_cdns_config_stream()  argument
1651 		if (cdns->bus.params.m_data_mode != SDW_PORT_DATA_MODE_NORMAL)  in sdw_cdns_config_stream()
1655 	cdns_updatel(cdns, offset,  in sdw_cdns_config_stream()
1662 	cdns_writel(cdns, CDNS_PDI_CONFIG(pdi->num), val);  in sdw_cdns_config_stream()
1669  * @cdns: Cadence instance
1675 struct sdw_cdns_pdi *sdw_cdns_alloc_pdi(struct sdw_cdns *cdns,  in sdw_cdns_alloc_pdi()  argument
1682 		pdi = cdns_find_pdi(cdns, 0, stream->num_in, stream->in,  in sdw_cdns_alloc_pdi()
1685 		pdi = cdns_find_pdi(cdns, 0, stream->num_out, stream->out,  in sdw_cdns_alloc_pdi()
1690 		pdi = cdns_find_pdi(cdns, 2, stream->num_bd, stream->bd,  in sdw_cdns_alloc_pdi()