1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2019, Linaro Limited
5 #include <linux/completion.h>
6 #include <linux/interrupt.h>
8 #include <linux/kernel.h>
9 #include <linux/module.h>
11 #include <linux/of_irq.h>
12 #include <linux/of_device.h>
13 #include <linux/regmap.h>
14 #include <linux/slab.h>
15 #include <linux/slimbus.h>
16 #include <linux/soundwire/sdw.h>
17 #include <linux/soundwire/sdw_registers.h>
18 #include <sound/pcm_params.h>
19 #include <sound/soc.h>
22 #define SWRM_COMP_HW_VERSION 0x00
23 #define SWRM_COMP_CFG_ADDR 0x04
24 #define SWRM_COMP_CFG_IRQ_LEVEL_OR_PULSE_MSK BIT(1)
25 #define SWRM_COMP_CFG_ENABLE_MSK BIT(0)
26 #define SWRM_COMP_PARAMS 0x100
27 #define SWRM_COMP_PARAMS_WR_FIFO_DEPTH GENMASK(14, 10)
28 #define SWRM_COMP_PARAMS_RD_FIFO_DEPTH GENMASK(19, 15)
29 #define SWRM_COMP_PARAMS_DOUT_PORTS_MASK GENMASK(4, 0)
30 #define SWRM_COMP_PARAMS_DIN_PORTS_MASK GENMASK(9, 5)
31 #define SWRM_INTERRUPT_STATUS 0x200
32 #define SWRM_INTERRUPT_STATUS_RMSK GENMASK(16, 0)
33 #define SWRM_INTERRUPT_STATUS_SLAVE_PEND_IRQ BIT(0)
34 #define SWRM_INTERRUPT_STATUS_NEW_SLAVE_ATTACHED BIT(1)
35 #define SWRM_INTERRUPT_STATUS_CHANGE_ENUM_SLAVE_STATUS BIT(2)
36 #define SWRM_INTERRUPT_STATUS_MASTER_CLASH_DET BIT(3)
37 #define SWRM_INTERRUPT_STATUS_RD_FIFO_OVERFLOW BIT(4)
38 #define SWRM_INTERRUPT_STATUS_RD_FIFO_UNDERFLOW BIT(5)
39 #define SWRM_INTERRUPT_STATUS_WR_CMD_FIFO_OVERFLOW BIT(6)
40 #define SWRM_INTERRUPT_STATUS_CMD_ERROR BIT(7)
41 #define SWRM_INTERRUPT_STATUS_DOUT_PORT_COLLISION BIT(8)
42 #define SWRM_INTERRUPT_STATUS_READ_EN_RD_VALID_MISMATCH BIT(9)
43 #define SWRM_INTERRUPT_STATUS_SPECIAL_CMD_ID_FINISHED BIT(10)
44 #define SWRM_INTERRUPT_STATUS_BUS_RESET_FINISHED_V2 BIT(13)
45 #define SWRM_INTERRUPT_STATUS_CLK_STOP_FINISHED_V2 BIT(14)
46 #define SWRM_INTERRUPT_STATUS_EXT_CLK_STOP_WAKEUP BIT(16)
47 #define SWRM_INTERRUPT_MAX 17
48 #define SWRM_INTERRUPT_MASK_ADDR 0x204
49 #define SWRM_INTERRUPT_CLEAR 0x208
50 #define SWRM_INTERRUPT_CPU_EN 0x210
51 #define SWRM_CMD_FIFO_WR_CMD 0x300
52 #define SWRM_CMD_FIFO_RD_CMD 0x304
53 #define SWRM_CMD_FIFO_CMD 0x308
54 #define SWRM_CMD_FIFO_FLUSH 0x1
55 #define SWRM_CMD_FIFO_STATUS 0x30C
56 #define SWRM_RD_CMD_FIFO_CNT_MASK GENMASK(20, 16)
57 #define SWRM_WR_CMD_FIFO_CNT_MASK GENMASK(12, 8)
58 #define SWRM_CMD_FIFO_CFG_ADDR 0x314
59 #define SWRM_CONTINUE_EXEC_ON_CMD_IGNORE BIT(31)
60 #define SWRM_RD_WR_CMD_RETRIES 0x7
61 #define SWRM_CMD_FIFO_RD_FIFO_ADDR 0x318
62 #define SWRM_RD_FIFO_CMD_ID_MASK GENMASK(11, 8)
63 #define SWRM_ENUMERATOR_CFG_ADDR 0x500
64 #define SWRM_ENUMERATOR_SLAVE_DEV_ID_1(m) (0x530 + 0x8 * (m))
65 #define SWRM_ENUMERATOR_SLAVE_DEV_ID_2(m) (0x534 + 0x8 * (m))
66 #define SWRM_MCP_FRAME_CTRL_BANK_ADDR(m) (0x101C + 0x40 * (m))
67 #define SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_BMSK GENMASK(2, 0)
68 #define SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_BMSK GENMASK(7, 3)
69 #define SWRM_MCP_BUS_CTRL 0x1044
70 #define SWRM_MCP_BUS_CLK_START BIT(1)
71 #define SWRM_MCP_CFG_ADDR 0x1048
72 #define SWRM_MCP_CFG_MAX_NUM_OF_CMD_NO_PINGS_BMSK GENMASK(21, 17)
73 #define SWRM_DEF_CMD_NO_PINGS 0x1f
74 #define SWRM_MCP_STATUS 0x104C
75 #define SWRM_MCP_STATUS_BANK_NUM_MASK BIT(0)
76 #define SWRM_MCP_SLV_STATUS 0x1090
77 #define SWRM_MCP_SLV_STATUS_MASK GENMASK(1, 0)
78 #define SWRM_MCP_SLV_STATUS_SZ 2
79 #define SWRM_DP_PORT_CTRL_BANK(n, m) (0x1124 + 0x100 * (n - 1) + 0x40 * m)
80 #define SWRM_DP_PORT_CTRL_2_BANK(n, m) (0x1128 + 0x100 * (n - 1) + 0x40 * m)
81 #define SWRM_DP_BLOCK_CTRL_1(n) (0x112C + 0x100 * (n - 1))
82 #define SWRM_DP_BLOCK_CTRL2_BANK(n, m) (0x1130 + 0x100 * (n - 1) + 0x40 * m)
83 #define SWRM_DP_PORT_HCTRL_BANK(n, m) (0x1134 + 0x100 * (n - 1) + 0x40 * m)
84 #define SWRM_DP_BLOCK_CTRL3_BANK(n, m) (0x1138 + 0x100 * (n - 1) + 0x40 * m)
85 #define SWRM_DIN_DPn_PCM_PORT_CTRL(n) (0x1054 + 0x100 * (n - 1))
87 #define SWRM_DP_PORT_CTRL_EN_CHAN_SHFT 0x18
88 #define SWRM_DP_PORT_CTRL_OFFSET2_SHFT 0x10
89 #define SWRM_DP_PORT_CTRL_OFFSET1_SHFT 0x08
90 #define SWRM_AHB_BRIDGE_WR_DATA_0 0xc85
91 #define SWRM_AHB_BRIDGE_WR_ADDR_0 0xc89
92 #define SWRM_AHB_BRIDGE_RD_ADDR_0 0xc8d
93 #define SWRM_AHB_BRIDGE_RD_DATA_0 0xc91
95 #define SWRM_REG_VAL_PACK(data, dev, id, reg) \
96 ((reg) | ((id) << 16) | ((dev) << 20) | ((data) << 24))
98 #define SWRM_SPECIAL_CMD_ID 0xF
99 #define MAX_FREQ_NUM 1
100 #define TIMEOUT_MS (2 * HZ)
101 #define QCOM_SWRM_MAX_RD_LEN 0x1
102 #define QCOM_SDW_MAX_PORTS 14
103 #define DEFAULT_CLK_FREQ 9600000
104 #define SWRM_MAX_DAIS 0xF
105 #define SWR_INVALID_PARAM 0xFF
106 #define SWR_HSTOP_MAX_VAL 0xF
107 #define SWR_HSTART_MIN_VAL 0x0
108 #define SWR_BROADCAST_CMD_ID 0x0F
109 #define SWR_MAX_CMD_ID 14
110 #define MAX_FIFO_RD_RETRY 3
111 #define SWR_OVERFLOW_RETRY_COUNT 30
113 struct qcom_swrm_port_config {
125 struct qcom_swrm_ctrl {
128 struct regmap *regmap;
130 struct completion broadcast;
131 struct completion enumeration;
132 struct work_struct slave_work;
133 /* Port alloc/free lock */
134 struct mutex port_lock;
139 unsigned int version;
144 unsigned long dout_port_mask;
145 unsigned long din_port_mask;
149 struct qcom_swrm_port_config pconfig[QCOM_SDW_MAX_PORTS];
150 struct sdw_stream_runtime *sruntime[SWRM_MAX_DAIS];
151 enum sdw_slave_status status[SDW_MAX_DEVICES];
152 int (*reg_read)(struct qcom_swrm_ctrl *ctrl, int reg, u32 *val);
153 int (*reg_write)(struct qcom_swrm_ctrl *ctrl, int reg, int val);
159 struct qcom_swrm_data {
164 static struct qcom_swrm_data swrm_v1_3_data = {
169 static struct qcom_swrm_data swrm_v1_5_data = {
174 #define to_qcom_sdw(b) container_of(b, struct qcom_swrm_ctrl, bus)
176 static int qcom_swrm_ahb_reg_read(struct qcom_swrm_ctrl *ctrl, int reg,
179 struct regmap *wcd_regmap = ctrl->regmap;
182 /* pg register + offset */
183 ret = regmap_bulk_write(wcd_regmap, SWRM_AHB_BRIDGE_RD_ADDR_0,
188 ret = regmap_bulk_read(wcd_regmap, SWRM_AHB_BRIDGE_RD_DATA_0,
196 static int qcom_swrm_ahb_reg_write(struct qcom_swrm_ctrl *ctrl,
199 struct regmap *wcd_regmap = ctrl->regmap;
201 /* pg register + offset */
202 ret = regmap_bulk_write(wcd_regmap, SWRM_AHB_BRIDGE_WR_DATA_0,
207 /* write address register */
208 ret = regmap_bulk_write(wcd_regmap, SWRM_AHB_BRIDGE_WR_ADDR_0,
216 static int qcom_swrm_cpu_reg_read(struct qcom_swrm_ctrl *ctrl, int reg,
219 *val = readl(ctrl->mmio + reg);
223 static int qcom_swrm_cpu_reg_write(struct qcom_swrm_ctrl *ctrl, int reg,
226 writel(val, ctrl->mmio + reg);
230 static u32 swrm_get_packed_reg_val(u8 *cmd_id, u8 cmd_data,
231 u8 dev_addr, u16 reg_addr)
236 if (id != SWR_BROADCAST_CMD_ID) {
237 if (id < SWR_MAX_CMD_ID)
243 val = SWRM_REG_VAL_PACK(cmd_data, dev_addr, id, reg_addr);
248 static int swrm_wait_for_rd_fifo_avail(struct qcom_swrm_ctrl *swrm)
250 u32 fifo_outstanding_data, value;
251 int fifo_retry_count = SWR_OVERFLOW_RETRY_COUNT;
254 /* Check for fifo underflow during read */
255 swrm->reg_read(swrm, SWRM_CMD_FIFO_STATUS, &value);
256 fifo_outstanding_data = FIELD_GET(SWRM_RD_CMD_FIFO_CNT_MASK, value);
258 /* Check if read data is available in read fifo */
259 if (fifo_outstanding_data > 0)
262 usleep_range(500, 510);
263 } while (fifo_retry_count--);
265 if (fifo_outstanding_data == 0) {
266 dev_err_ratelimited(swrm->dev, "%s err read underflow\n", __func__);
273 static int swrm_wait_for_wr_fifo_avail(struct qcom_swrm_ctrl *swrm)
275 u32 fifo_outstanding_cmds, value;
276 int fifo_retry_count = SWR_OVERFLOW_RETRY_COUNT;
279 /* Check for fifo overflow during write */
280 swrm->reg_read(swrm, SWRM_CMD_FIFO_STATUS, &value);
281 fifo_outstanding_cmds = FIELD_GET(SWRM_WR_CMD_FIFO_CNT_MASK, value);
283 /* Check for space in write fifo before writing */
284 if (fifo_outstanding_cmds < swrm->wr_fifo_depth)
287 usleep_range(500, 510);
288 } while (fifo_retry_count--);
290 if (fifo_outstanding_cmds == swrm->wr_fifo_depth) {
291 dev_err_ratelimited(swrm->dev, "%s err write overflow\n", __func__);
298 static int qcom_swrm_cmd_fifo_wr_cmd(struct qcom_swrm_ctrl *swrm, u8 cmd_data,
299 u8 dev_addr, u16 reg_addr)
306 if (dev_addr == SDW_BROADCAST_DEV_NUM) {
307 cmd_id = SWR_BROADCAST_CMD_ID;
308 val = swrm_get_packed_reg_val(&cmd_id, cmd_data,
311 val = swrm_get_packed_reg_val(&swrm->wcmd_id, cmd_data,
315 if (swrm_wait_for_wr_fifo_avail(swrm))
316 return SDW_CMD_FAIL_OTHER;
318 /* Its assumed that write is okay as we do not get any status back */
319 swrm->reg_write(swrm, SWRM_CMD_FIFO_WR_CMD, val);
321 /* version 1.3 or less */
322 if (swrm->version <= 0x01030000)
323 usleep_range(150, 155);
325 if (cmd_id == SWR_BROADCAST_CMD_ID) {
327 * sleep for 10ms for MSM soundwire variant to allow broadcast
328 * command to complete.
330 ret = wait_for_completion_timeout(&swrm->broadcast,
331 msecs_to_jiffies(TIMEOUT_MS));
333 ret = SDW_CMD_IGNORED;
343 static int qcom_swrm_cmd_fifo_rd_cmd(struct qcom_swrm_ctrl *swrm,
344 u8 dev_addr, u16 reg_addr,
347 u32 cmd_data, cmd_id, val, retry_attempt = 0;
349 val = swrm_get_packed_reg_val(&swrm->rcmd_id, len, dev_addr, reg_addr);
351 /* wait for FIFO RD to complete to avoid overflow */
352 usleep_range(100, 105);
353 swrm->reg_write(swrm, SWRM_CMD_FIFO_RD_CMD, val);
354 /* wait for FIFO RD CMD complete to avoid overflow */
355 usleep_range(250, 255);
357 if (swrm_wait_for_rd_fifo_avail(swrm))
358 return SDW_CMD_FAIL_OTHER;
361 swrm->reg_read(swrm, SWRM_CMD_FIFO_RD_FIFO_ADDR, &cmd_data);
362 rval[0] = cmd_data & 0xFF;
363 cmd_id = FIELD_GET(SWRM_RD_FIFO_CMD_ID_MASK, cmd_data);
365 if (cmd_id != swrm->rcmd_id) {
366 if (retry_attempt < (MAX_FIFO_RD_RETRY - 1)) {
367 /* wait 500 us before retry on fifo read failure */
368 usleep_range(500, 505);
369 swrm->reg_write(swrm, SWRM_CMD_FIFO_CMD,
370 SWRM_CMD_FIFO_FLUSH);
371 swrm->reg_write(swrm, SWRM_CMD_FIFO_RD_CMD, val);
378 } while (retry_attempt < MAX_FIFO_RD_RETRY);
380 dev_err(swrm->dev, "failed to read fifo: reg: 0x%x, rcmd_id: 0x%x,\
381 dev_num: 0x%x, cmd_data: 0x%x\n",
382 reg_addr, swrm->rcmd_id, dev_addr, cmd_data);
384 return SDW_CMD_IGNORED;
387 static int qcom_swrm_get_alert_slave_dev_num(struct qcom_swrm_ctrl *ctrl)
392 ctrl->reg_read(ctrl, SWRM_MCP_SLV_STATUS, &val);
394 for (dev_num = 0; dev_num < SDW_MAX_DEVICES; dev_num++) {
395 status = (val >> (dev_num * SWRM_MCP_SLV_STATUS_SZ));
397 if ((status & SWRM_MCP_SLV_STATUS_MASK) == SDW_SLAVE_ALERT) {
398 ctrl->status[dev_num] = status;
406 static void qcom_swrm_get_device_status(struct qcom_swrm_ctrl *ctrl)
411 ctrl->reg_read(ctrl, SWRM_MCP_SLV_STATUS, &val);
412 ctrl->slave_status = val;
414 for (i = 0; i < SDW_MAX_DEVICES; i++) {
417 s = (val >> (i * 2));
418 s &= SWRM_MCP_SLV_STATUS_MASK;
423 static void qcom_swrm_set_slave_dev_num(struct sdw_bus *bus,
424 struct sdw_slave *slave, int devnum)
426 struct qcom_swrm_ctrl *ctrl = to_qcom_sdw(bus);
429 ctrl->reg_read(ctrl, SWRM_MCP_SLV_STATUS, &status);
430 status = (status >> (devnum * SWRM_MCP_SLV_STATUS_SZ));
431 status &= SWRM_MCP_SLV_STATUS_MASK;
433 if (status == SDW_SLAVE_ATTACHED) {
435 slave->dev_num = devnum;
436 mutex_lock(&bus->bus_lock);
437 set_bit(devnum, bus->assigned);
438 mutex_unlock(&bus->bus_lock);
442 static int qcom_swrm_enumerate(struct sdw_bus *bus)
444 struct qcom_swrm_ctrl *ctrl = to_qcom_sdw(bus);
445 struct sdw_slave *slave, *_s;
446 struct sdw_slave_id id;
451 char *buf1 = (char *)&val1, *buf2 = (char *)&val2;
453 for (i = 1; i <= SDW_MAX_DEVICES; i++) {
454 /*SCP_Devid5 - Devid 4*/
455 ctrl->reg_read(ctrl, SWRM_ENUMERATOR_SLAVE_DEV_ID_1(i), &val1);
457 /*SCP_Devid3 - DevId 2 Devid 1 Devid 0*/
458 ctrl->reg_read(ctrl, SWRM_ENUMERATOR_SLAVE_DEV_ID_2(i), &val2);
463 addr = buf2[1] | (buf2[0] << 8) | (buf1[3] << 16) |
464 ((u64)buf1[2] << 24) | ((u64)buf1[1] << 32) |
465 ((u64)buf1[0] << 40);
467 sdw_extract_slave_id(bus, addr, &id);
469 /* Now compare with entries */
470 list_for_each_entry_safe(slave, _s, &bus->slaves, node) {
471 if (sdw_compare_devid(slave, id) == 0) {
472 qcom_swrm_set_slave_dev_num(bus, slave, i);
479 qcom_swrm_set_slave_dev_num(bus, NULL, i);
480 sdw_slave_add(bus, &id, NULL);
484 complete(&ctrl->enumeration);
488 static irqreturn_t qcom_swrm_irq_handler(int irq, void *dev_id)
490 struct qcom_swrm_ctrl *swrm = dev_id;
491 u32 value, intr_sts, intr_sts_masked, slave_status;
494 int ret = IRQ_HANDLED;
496 swrm->reg_read(swrm, SWRM_INTERRUPT_STATUS, &intr_sts);
497 intr_sts_masked = intr_sts & swrm->intr_mask;
500 for (i = 0; i < SWRM_INTERRUPT_MAX; i++) {
501 value = intr_sts_masked & BIT(i);
506 case SWRM_INTERRUPT_STATUS_SLAVE_PEND_IRQ:
507 devnum = qcom_swrm_get_alert_slave_dev_num(swrm);
509 dev_err_ratelimited(swrm->dev,
510 "no slave alert found.spurious interrupt\n");
512 sdw_handle_slave_status(&swrm->bus, swrm->status);
516 case SWRM_INTERRUPT_STATUS_NEW_SLAVE_ATTACHED:
517 case SWRM_INTERRUPT_STATUS_CHANGE_ENUM_SLAVE_STATUS:
518 dev_err_ratelimited(swrm->dev, "%s: SWR new slave attached\n",
520 swrm->reg_read(swrm, SWRM_MCP_SLV_STATUS, &slave_status);
521 if (swrm->slave_status == slave_status) {
522 dev_err(swrm->dev, "Slave status not changed %x\n",
525 qcom_swrm_get_device_status(swrm);
526 qcom_swrm_enumerate(&swrm->bus);
527 sdw_handle_slave_status(&swrm->bus, swrm->status);
530 case SWRM_INTERRUPT_STATUS_MASTER_CLASH_DET:
531 dev_err_ratelimited(swrm->dev,
532 "%s: SWR bus clsh detected\n",
534 swrm->intr_mask &= ~SWRM_INTERRUPT_STATUS_MASTER_CLASH_DET;
535 swrm->reg_write(swrm, SWRM_INTERRUPT_CPU_EN, swrm->intr_mask);
537 case SWRM_INTERRUPT_STATUS_RD_FIFO_OVERFLOW:
538 swrm->reg_read(swrm, SWRM_CMD_FIFO_STATUS, &value);
539 dev_err_ratelimited(swrm->dev,
540 "%s: SWR read FIFO overflow fifo status 0x%x\n",
543 case SWRM_INTERRUPT_STATUS_RD_FIFO_UNDERFLOW:
544 swrm->reg_read(swrm, SWRM_CMD_FIFO_STATUS, &value);
545 dev_err_ratelimited(swrm->dev,
546 "%s: SWR read FIFO underflow fifo status 0x%x\n",
549 case SWRM_INTERRUPT_STATUS_WR_CMD_FIFO_OVERFLOW:
550 swrm->reg_read(swrm, SWRM_CMD_FIFO_STATUS, &value);
552 "%s: SWR write FIFO overflow fifo status %x\n",
554 swrm->reg_write(swrm, SWRM_CMD_FIFO_CMD, 0x1);
556 case SWRM_INTERRUPT_STATUS_CMD_ERROR:
557 swrm->reg_read(swrm, SWRM_CMD_FIFO_STATUS, &value);
558 dev_err_ratelimited(swrm->dev,
559 "%s: SWR CMD error, fifo status 0x%x, flushing fifo\n",
561 swrm->reg_write(swrm, SWRM_CMD_FIFO_CMD, 0x1);
563 case SWRM_INTERRUPT_STATUS_DOUT_PORT_COLLISION:
564 dev_err_ratelimited(swrm->dev,
565 "%s: SWR Port collision detected\n",
567 swrm->intr_mask &= ~SWRM_INTERRUPT_STATUS_DOUT_PORT_COLLISION;
568 swrm->reg_write(swrm,
569 SWRM_INTERRUPT_CPU_EN, swrm->intr_mask);
571 case SWRM_INTERRUPT_STATUS_READ_EN_RD_VALID_MISMATCH:
572 dev_err_ratelimited(swrm->dev,
573 "%s: SWR read enable valid mismatch\n",
576 ~SWRM_INTERRUPT_STATUS_READ_EN_RD_VALID_MISMATCH;
577 swrm->reg_write(swrm,
578 SWRM_INTERRUPT_CPU_EN, swrm->intr_mask);
580 case SWRM_INTERRUPT_STATUS_SPECIAL_CMD_ID_FINISHED:
581 complete(&swrm->broadcast);
583 case SWRM_INTERRUPT_STATUS_BUS_RESET_FINISHED_V2:
585 case SWRM_INTERRUPT_STATUS_CLK_STOP_FINISHED_V2:
587 case SWRM_INTERRUPT_STATUS_EXT_CLK_STOP_WAKEUP:
590 dev_err_ratelimited(swrm->dev,
591 "%s: SWR unknown interrupt value: %d\n",
597 swrm->reg_write(swrm, SWRM_INTERRUPT_CLEAR, intr_sts);
598 swrm->reg_read(swrm, SWRM_INTERRUPT_STATUS, &intr_sts);
599 intr_sts_masked = intr_sts & swrm->intr_mask;
600 } while (intr_sts_masked);
605 static int qcom_swrm_init(struct qcom_swrm_ctrl *ctrl)
609 /* Clear Rows and Cols */
610 val = FIELD_PREP(SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_BMSK, ctrl->rows_index);
611 val |= FIELD_PREP(SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_BMSK, ctrl->cols_index);
613 ctrl->reg_write(ctrl, SWRM_MCP_FRAME_CTRL_BANK_ADDR(0), val);
615 /* Enable Auto enumeration */
616 ctrl->reg_write(ctrl, SWRM_ENUMERATOR_CFG_ADDR, 1);
618 ctrl->intr_mask = SWRM_INTERRUPT_STATUS_RMSK;
619 /* Mask soundwire interrupts */
620 ctrl->reg_write(ctrl, SWRM_INTERRUPT_MASK_ADDR,
621 SWRM_INTERRUPT_STATUS_RMSK);
623 /* Configure No pings */
624 ctrl->reg_read(ctrl, SWRM_MCP_CFG_ADDR, &val);
625 u32p_replace_bits(&val, SWRM_DEF_CMD_NO_PINGS, SWRM_MCP_CFG_MAX_NUM_OF_CMD_NO_PINGS_BMSK);
626 ctrl->reg_write(ctrl, SWRM_MCP_CFG_ADDR, val);
628 ctrl->reg_write(ctrl, SWRM_MCP_BUS_CTRL, SWRM_MCP_BUS_CLK_START);
629 /* Configure number of retries of a read/write cmd */
630 if (ctrl->version > 0x01050001) {
631 /* Only for versions >= 1.5.1 */
632 ctrl->reg_write(ctrl, SWRM_CMD_FIFO_CFG_ADDR,
633 SWRM_RD_WR_CMD_RETRIES |
634 SWRM_CONTINUE_EXEC_ON_CMD_IGNORE);
636 ctrl->reg_write(ctrl, SWRM_CMD_FIFO_CFG_ADDR,
637 SWRM_RD_WR_CMD_RETRIES);
640 /* Set IRQ to PULSE */
641 ctrl->reg_write(ctrl, SWRM_COMP_CFG_ADDR,
642 SWRM_COMP_CFG_IRQ_LEVEL_OR_PULSE_MSK |
643 SWRM_COMP_CFG_ENABLE_MSK);
645 /* enable CPU IRQs */
647 ctrl->reg_write(ctrl, SWRM_INTERRUPT_CPU_EN,
648 SWRM_INTERRUPT_STATUS_RMSK);
650 ctrl->slave_status = 0;
651 ctrl->reg_read(ctrl, SWRM_COMP_PARAMS, &val);
652 ctrl->rd_fifo_depth = FIELD_GET(SWRM_COMP_PARAMS_RD_FIFO_DEPTH, val);
653 ctrl->wr_fifo_depth = FIELD_GET(SWRM_COMP_PARAMS_WR_FIFO_DEPTH, val);
658 static enum sdw_command_response qcom_swrm_xfer_msg(struct sdw_bus *bus,
661 struct qcom_swrm_ctrl *ctrl = to_qcom_sdw(bus);
664 if (msg->flags == SDW_MSG_FLAG_READ) {
665 for (i = 0; i < msg->len;) {
666 if ((msg->len - i) < QCOM_SWRM_MAX_RD_LEN)
669 len = QCOM_SWRM_MAX_RD_LEN;
671 ret = qcom_swrm_cmd_fifo_rd_cmd(ctrl, msg->dev_num,
679 } else if (msg->flags == SDW_MSG_FLAG_WRITE) {
680 for (i = 0; i < msg->len; i++) {
681 ret = qcom_swrm_cmd_fifo_wr_cmd(ctrl, msg->buf[i],
685 return SDW_CMD_IGNORED;
692 static int qcom_swrm_pre_bank_switch(struct sdw_bus *bus)
694 u32 reg = SWRM_MCP_FRAME_CTRL_BANK_ADDR(bus->params.next_bank);
695 struct qcom_swrm_ctrl *ctrl = to_qcom_sdw(bus);
698 ctrl->reg_read(ctrl, reg, &val);
700 u32p_replace_bits(&val, ctrl->cols_index, SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_BMSK);
701 u32p_replace_bits(&val, ctrl->rows_index, SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_BMSK);
703 return ctrl->reg_write(ctrl, reg, val);
706 static int qcom_swrm_port_params(struct sdw_bus *bus,
707 struct sdw_port_params *p_params,
710 struct qcom_swrm_ctrl *ctrl = to_qcom_sdw(bus);
712 return ctrl->reg_write(ctrl, SWRM_DP_BLOCK_CTRL_1(p_params->num),
717 static int qcom_swrm_transport_params(struct sdw_bus *bus,
718 struct sdw_transport_params *params,
719 enum sdw_reg_bank bank)
721 struct qcom_swrm_ctrl *ctrl = to_qcom_sdw(bus);
722 struct qcom_swrm_port_config *pcfg;
724 int reg = SWRM_DP_PORT_CTRL_BANK((params->port_num), bank);
727 pcfg = &ctrl->pconfig[params->port_num];
729 value = pcfg->off1 << SWRM_DP_PORT_CTRL_OFFSET1_SHFT;
730 value |= pcfg->off2 << SWRM_DP_PORT_CTRL_OFFSET2_SHFT;
733 ret = ctrl->reg_write(ctrl, reg, value);
737 if (pcfg->lane_control != SWR_INVALID_PARAM) {
738 reg = SWRM_DP_PORT_CTRL_2_BANK(params->port_num, bank);
739 value = pcfg->lane_control;
740 ret = ctrl->reg_write(ctrl, reg, value);
745 if (pcfg->blk_group_count != SWR_INVALID_PARAM) {
746 reg = SWRM_DP_BLOCK_CTRL2_BANK(params->port_num, bank);
747 value = pcfg->blk_group_count;
748 ret = ctrl->reg_write(ctrl, reg, value);
753 if (pcfg->hstart != SWR_INVALID_PARAM
754 && pcfg->hstop != SWR_INVALID_PARAM) {
755 reg = SWRM_DP_PORT_HCTRL_BANK(params->port_num, bank);
756 value = (pcfg->hstop << 4) | pcfg->hstart;
757 ret = ctrl->reg_write(ctrl, reg, value);
759 reg = SWRM_DP_PORT_HCTRL_BANK(params->port_num, bank);
760 value = (SWR_HSTOP_MAX_VAL << 4) | SWR_HSTART_MIN_VAL;
761 ret = ctrl->reg_write(ctrl, reg, value);
767 if (pcfg->bp_mode != SWR_INVALID_PARAM) {
768 reg = SWRM_DP_BLOCK_CTRL3_BANK(params->port_num, bank);
769 ret = ctrl->reg_write(ctrl, reg, pcfg->bp_mode);
776 static int qcom_swrm_port_enable(struct sdw_bus *bus,
777 struct sdw_enable_ch *enable_ch,
780 u32 reg = SWRM_DP_PORT_CTRL_BANK(enable_ch->port_num, bank);
781 struct qcom_swrm_ctrl *ctrl = to_qcom_sdw(bus);
784 ctrl->reg_read(ctrl, reg, &val);
786 if (enable_ch->enable)
787 val |= (enable_ch->ch_mask << SWRM_DP_PORT_CTRL_EN_CHAN_SHFT);
789 val &= ~(0xff << SWRM_DP_PORT_CTRL_EN_CHAN_SHFT);
791 return ctrl->reg_write(ctrl, reg, val);
794 static const struct sdw_master_port_ops qcom_swrm_port_ops = {
795 .dpn_set_port_params = qcom_swrm_port_params,
796 .dpn_set_port_transport_params = qcom_swrm_transport_params,
797 .dpn_port_enable_ch = qcom_swrm_port_enable,
800 static const struct sdw_master_ops qcom_swrm_ops = {
801 .xfer_msg = qcom_swrm_xfer_msg,
802 .pre_bank_switch = qcom_swrm_pre_bank_switch,
805 static int qcom_swrm_compute_params(struct sdw_bus *bus)
807 struct qcom_swrm_ctrl *ctrl = to_qcom_sdw(bus);
808 struct sdw_master_runtime *m_rt;
809 struct sdw_slave_runtime *s_rt;
810 struct sdw_port_runtime *p_rt;
811 struct qcom_swrm_port_config *pcfg;
812 struct sdw_slave *slave;
816 list_for_each_entry(m_rt, &bus->m_rt_list, bus_node) {
817 list_for_each_entry(p_rt, &m_rt->port_list, port_node) {
818 pcfg = &ctrl->pconfig[p_rt->num];
819 p_rt->transport_params.port_num = p_rt->num;
820 if (pcfg->word_length != SWR_INVALID_PARAM) {
821 sdw_fill_port_params(&p_rt->port_params,
822 p_rt->num, pcfg->word_length + 1,
823 SDW_PORT_FLOW_MODE_ISOCH,
824 SDW_PORT_DATA_MODE_NORMAL);
829 list_for_each_entry(s_rt, &m_rt->slave_rt_list, m_rt_node) {
831 list_for_each_entry(p_rt, &s_rt->port_list, port_node) {
832 m_port = slave->m_port_map[p_rt->num];
833 /* port config starts at offset 0 so -1 from actual port number */
835 pcfg = &ctrl->pconfig[m_port];
837 pcfg = &ctrl->pconfig[i];
838 p_rt->transport_params.port_num = p_rt->num;
839 p_rt->transport_params.sample_interval =
841 p_rt->transport_params.offset1 = pcfg->off1;
842 p_rt->transport_params.offset2 = pcfg->off2;
843 p_rt->transport_params.blk_pkg_mode = pcfg->bp_mode;
844 p_rt->transport_params.blk_grp_ctrl = pcfg->blk_group_count;
846 p_rt->transport_params.hstart = pcfg->hstart;
847 p_rt->transport_params.hstop = pcfg->hstop;
848 p_rt->transport_params.lane_ctrl = pcfg->lane_control;
849 if (pcfg->word_length != SWR_INVALID_PARAM) {
850 sdw_fill_port_params(&p_rt->port_params,
852 pcfg->word_length + 1,
853 SDW_PORT_FLOW_MODE_ISOCH,
854 SDW_PORT_DATA_MODE_NORMAL);
864 static u32 qcom_swrm_freq_tbl[MAX_FREQ_NUM] = {
868 static void qcom_swrm_stream_free_ports(struct qcom_swrm_ctrl *ctrl,
869 struct sdw_stream_runtime *stream)
871 struct sdw_master_runtime *m_rt;
872 struct sdw_port_runtime *p_rt;
873 unsigned long *port_mask;
875 mutex_lock(&ctrl->port_lock);
877 list_for_each_entry(m_rt, &stream->master_list, stream_node) {
878 if (m_rt->direction == SDW_DATA_DIR_RX)
879 port_mask = &ctrl->dout_port_mask;
881 port_mask = &ctrl->din_port_mask;
883 list_for_each_entry(p_rt, &m_rt->port_list, port_node)
884 clear_bit(p_rt->num, port_mask);
887 mutex_unlock(&ctrl->port_lock);
890 static int qcom_swrm_stream_alloc_ports(struct qcom_swrm_ctrl *ctrl,
891 struct sdw_stream_runtime *stream,
892 struct snd_pcm_hw_params *params,
895 struct sdw_port_config pconfig[QCOM_SDW_MAX_PORTS];
896 struct sdw_stream_config sconfig;
897 struct sdw_master_runtime *m_rt;
898 struct sdw_slave_runtime *s_rt;
899 struct sdw_port_runtime *p_rt;
900 struct sdw_slave *slave;
901 unsigned long *port_mask;
902 int i, maxport, pn, nports = 0, ret = 0;
905 mutex_lock(&ctrl->port_lock);
906 list_for_each_entry(m_rt, &stream->master_list, stream_node) {
907 if (m_rt->direction == SDW_DATA_DIR_RX) {
908 maxport = ctrl->num_dout_ports;
909 port_mask = &ctrl->dout_port_mask;
911 maxport = ctrl->num_din_ports;
912 port_mask = &ctrl->din_port_mask;
915 list_for_each_entry(s_rt, &m_rt->slave_rt_list, m_rt_node) {
917 list_for_each_entry(p_rt, &s_rt->port_list, port_node) {
918 m_port = slave->m_port_map[p_rt->num];
919 /* Port numbers start from 1 - 14*/
923 pn = find_first_zero_bit(port_mask, maxport);
926 dev_err(ctrl->dev, "All ports busy\n");
930 set_bit(pn, port_mask);
931 pconfig[nports].num = pn;
932 pconfig[nports].ch_mask = p_rt->ch_mask;
938 if (direction == SNDRV_PCM_STREAM_CAPTURE)
939 sconfig.direction = SDW_DATA_DIR_TX;
941 sconfig.direction = SDW_DATA_DIR_RX;
943 /* hw parameters wil be ignored as we only support PDM */
944 sconfig.ch_count = 1;
945 sconfig.frame_rate = params_rate(params);
946 sconfig.type = stream->type;
948 sdw_stream_add_master(&ctrl->bus, &sconfig, pconfig,
952 for (i = 0; i < nports; i++)
953 clear_bit(pconfig[i].num, port_mask);
956 mutex_unlock(&ctrl->port_lock);
961 static int qcom_swrm_hw_params(struct snd_pcm_substream *substream,
962 struct snd_pcm_hw_params *params,
963 struct snd_soc_dai *dai)
965 struct qcom_swrm_ctrl *ctrl = dev_get_drvdata(dai->dev);
966 struct sdw_stream_runtime *sruntime = ctrl->sruntime[dai->id];
969 ret = qcom_swrm_stream_alloc_ports(ctrl, sruntime, params,
972 qcom_swrm_stream_free_ports(ctrl, sruntime);
977 static int qcom_swrm_hw_free(struct snd_pcm_substream *substream,
978 struct snd_soc_dai *dai)
980 struct qcom_swrm_ctrl *ctrl = dev_get_drvdata(dai->dev);
981 struct sdw_stream_runtime *sruntime = ctrl->sruntime[dai->id];
983 qcom_swrm_stream_free_ports(ctrl, sruntime);
984 sdw_stream_remove_master(&ctrl->bus, sruntime);
989 static int qcom_swrm_set_sdw_stream(struct snd_soc_dai *dai,
990 void *stream, int direction)
992 struct qcom_swrm_ctrl *ctrl = dev_get_drvdata(dai->dev);
994 ctrl->sruntime[dai->id] = stream;
999 static void *qcom_swrm_get_sdw_stream(struct snd_soc_dai *dai, int direction)
1001 struct qcom_swrm_ctrl *ctrl = dev_get_drvdata(dai->dev);
1003 return ctrl->sruntime[dai->id];
1006 static int qcom_swrm_startup(struct snd_pcm_substream *substream,
1007 struct snd_soc_dai *dai)
1009 struct qcom_swrm_ctrl *ctrl = dev_get_drvdata(dai->dev);
1010 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1011 struct sdw_stream_runtime *sruntime;
1012 struct snd_soc_dai *codec_dai;
1015 sruntime = sdw_alloc_stream(dai->name);
1019 ctrl->sruntime[dai->id] = sruntime;
1021 for_each_rtd_codec_dais(rtd, i, codec_dai) {
1022 ret = snd_soc_dai_set_sdw_stream(codec_dai, sruntime,
1024 if (ret < 0 && ret != -ENOTSUPP) {
1025 dev_err(dai->dev, "Failed to set sdw stream on %s\n",
1027 sdw_release_stream(sruntime);
1035 static void qcom_swrm_shutdown(struct snd_pcm_substream *substream,
1036 struct snd_soc_dai *dai)
1038 struct qcom_swrm_ctrl *ctrl = dev_get_drvdata(dai->dev);
1040 sdw_release_stream(ctrl->sruntime[dai->id]);
1041 ctrl->sruntime[dai->id] = NULL;
1044 static const struct snd_soc_dai_ops qcom_swrm_pdm_dai_ops = {
1045 .hw_params = qcom_swrm_hw_params,
1046 .hw_free = qcom_swrm_hw_free,
1047 .startup = qcom_swrm_startup,
1048 .shutdown = qcom_swrm_shutdown,
1049 .set_sdw_stream = qcom_swrm_set_sdw_stream,
1050 .get_sdw_stream = qcom_swrm_get_sdw_stream,
1053 static const struct snd_soc_component_driver qcom_swrm_dai_component = {
1054 .name = "soundwire",
1057 static int qcom_swrm_register_dais(struct qcom_swrm_ctrl *ctrl)
1059 int num_dais = ctrl->num_dout_ports + ctrl->num_din_ports;
1060 struct snd_soc_dai_driver *dais;
1061 struct snd_soc_pcm_stream *stream;
1062 struct device *dev = ctrl->dev;
1065 /* PDM dais are only tested for now */
1066 dais = devm_kcalloc(dev, num_dais, sizeof(*dais), GFP_KERNEL);
1070 for (i = 0; i < num_dais; i++) {
1071 dais[i].name = devm_kasprintf(dev, GFP_KERNEL, "SDW Pin%d", i);
1075 if (i < ctrl->num_dout_ports)
1076 stream = &dais[i].playback;
1078 stream = &dais[i].capture;
1080 stream->channels_min = 1;
1081 stream->channels_max = 1;
1082 stream->rates = SNDRV_PCM_RATE_48000;
1083 stream->formats = SNDRV_PCM_FMTBIT_S16_LE;
1085 dais[i].ops = &qcom_swrm_pdm_dai_ops;
1089 return devm_snd_soc_register_component(ctrl->dev,
1090 &qcom_swrm_dai_component,
1094 static int qcom_swrm_get_port_config(struct qcom_swrm_ctrl *ctrl)
1096 struct device_node *np = ctrl->dev->of_node;
1097 u8 off1[QCOM_SDW_MAX_PORTS];
1098 u8 off2[QCOM_SDW_MAX_PORTS];
1099 u8 si[QCOM_SDW_MAX_PORTS];
1100 u8 bp_mode[QCOM_SDW_MAX_PORTS] = { 0, };
1101 u8 hstart[QCOM_SDW_MAX_PORTS];
1102 u8 hstop[QCOM_SDW_MAX_PORTS];
1103 u8 word_length[QCOM_SDW_MAX_PORTS];
1104 u8 blk_group_count[QCOM_SDW_MAX_PORTS];
1105 u8 lane_control[QCOM_SDW_MAX_PORTS];
1106 int i, ret, nports, val;
1108 ctrl->reg_read(ctrl, SWRM_COMP_PARAMS, &val);
1110 ctrl->num_dout_ports = FIELD_GET(SWRM_COMP_PARAMS_DOUT_PORTS_MASK, val);
1111 ctrl->num_din_ports = FIELD_GET(SWRM_COMP_PARAMS_DIN_PORTS_MASK, val);
1113 ret = of_property_read_u32(np, "qcom,din-ports", &val);
1117 if (val > ctrl->num_din_ports)
1120 ctrl->num_din_ports = val;
1122 ret = of_property_read_u32(np, "qcom,dout-ports", &val);
1126 if (val > ctrl->num_dout_ports)
1129 ctrl->num_dout_ports = val;
1131 nports = ctrl->num_dout_ports + ctrl->num_din_ports;
1132 /* Valid port numbers are from 1-14, so mask out port 0 explicitly */
1133 set_bit(0, &ctrl->dout_port_mask);
1134 set_bit(0, &ctrl->din_port_mask);
1136 ret = of_property_read_u8_array(np, "qcom,ports-offset1",
1141 ret = of_property_read_u8_array(np, "qcom,ports-offset2",
1146 ret = of_property_read_u8_array(np, "qcom,ports-sinterval-low",
1151 ret = of_property_read_u8_array(np, "qcom,ports-block-pack-mode",
1156 ctrl->reg_read(ctrl, SWRM_COMP_HW_VERSION, &version);
1158 if (version <= 0x01030000)
1159 memset(bp_mode, SWR_INVALID_PARAM, QCOM_SDW_MAX_PORTS);
1164 memset(hstart, SWR_INVALID_PARAM, QCOM_SDW_MAX_PORTS);
1165 of_property_read_u8_array(np, "qcom,ports-hstart", hstart, nports);
1167 memset(hstop, SWR_INVALID_PARAM, QCOM_SDW_MAX_PORTS);
1168 of_property_read_u8_array(np, "qcom,ports-hstop", hstop, nports);
1170 memset(word_length, SWR_INVALID_PARAM, QCOM_SDW_MAX_PORTS);
1171 of_property_read_u8_array(np, "qcom,ports-word-length", word_length, nports);
1173 memset(blk_group_count, SWR_INVALID_PARAM, QCOM_SDW_MAX_PORTS);
1174 of_property_read_u8_array(np, "qcom,ports-block-group-count", blk_group_count, nports);
1176 memset(lane_control, SWR_INVALID_PARAM, QCOM_SDW_MAX_PORTS);
1177 of_property_read_u8_array(np, "qcom,ports-lane-control", lane_control, nports);
1179 for (i = 0; i < nports; i++) {
1180 /* Valid port number range is from 1-14 */
1181 ctrl->pconfig[i + 1].si = si[i];
1182 ctrl->pconfig[i + 1].off1 = off1[i];
1183 ctrl->pconfig[i + 1].off2 = off2[i];
1184 ctrl->pconfig[i + 1].bp_mode = bp_mode[i];
1185 ctrl->pconfig[i + 1].hstart = hstart[i];
1186 ctrl->pconfig[i + 1].hstop = hstop[i];
1187 ctrl->pconfig[i + 1].word_length = word_length[i];
1188 ctrl->pconfig[i + 1].blk_group_count = blk_group_count[i];
1189 ctrl->pconfig[i + 1].lane_control = lane_control[i];
1195 static int qcom_swrm_probe(struct platform_device *pdev)
1197 struct device *dev = &pdev->dev;
1198 struct sdw_master_prop *prop;
1199 struct sdw_bus_params *params;
1200 struct qcom_swrm_ctrl *ctrl;
1201 const struct qcom_swrm_data *data;
1205 ctrl = devm_kzalloc(dev, sizeof(*ctrl), GFP_KERNEL);
1209 data = of_device_get_match_data(dev);
1210 ctrl->rows_index = sdw_find_row_index(data->default_rows);
1211 ctrl->cols_index = sdw_find_col_index(data->default_cols);
1212 #if IS_REACHABLE(CONFIG_SLIMBUS)
1213 if (dev->parent->bus == &slimbus_bus) {
1217 ctrl->reg_read = qcom_swrm_ahb_reg_read;
1218 ctrl->reg_write = qcom_swrm_ahb_reg_write;
1219 ctrl->regmap = dev_get_regmap(dev->parent, NULL);
1223 ctrl->reg_read = qcom_swrm_cpu_reg_read;
1224 ctrl->reg_write = qcom_swrm_cpu_reg_write;
1225 ctrl->mmio = devm_platform_ioremap_resource(pdev, 0);
1226 if (IS_ERR(ctrl->mmio))
1227 return PTR_ERR(ctrl->mmio);
1230 ctrl->irq = of_irq_get(dev->of_node, 0);
1231 if (ctrl->irq < 0) {
1236 ctrl->hclk = devm_clk_get(dev, "iface");
1237 if (IS_ERR(ctrl->hclk)) {
1238 ret = PTR_ERR(ctrl->hclk);
1242 clk_prepare_enable(ctrl->hclk);
1245 dev_set_drvdata(&pdev->dev, ctrl);
1246 mutex_init(&ctrl->port_lock);
1247 init_completion(&ctrl->broadcast);
1248 init_completion(&ctrl->enumeration);
1250 ctrl->bus.ops = &qcom_swrm_ops;
1251 ctrl->bus.port_ops = &qcom_swrm_port_ops;
1252 ctrl->bus.compute_params = &qcom_swrm_compute_params;
1254 ret = qcom_swrm_get_port_config(ctrl);
1258 params = &ctrl->bus.params;
1259 params->max_dr_freq = DEFAULT_CLK_FREQ;
1260 params->curr_dr_freq = DEFAULT_CLK_FREQ;
1261 params->col = data->default_cols;
1262 params->row = data->default_rows;
1263 ctrl->reg_read(ctrl, SWRM_MCP_STATUS, &val);
1264 params->curr_bank = val & SWRM_MCP_STATUS_BANK_NUM_MASK;
1265 params->next_bank = !params->curr_bank;
1267 prop = &ctrl->bus.prop;
1268 prop->max_clk_freq = DEFAULT_CLK_FREQ;
1269 prop->num_clk_gears = 0;
1270 prop->num_clk_freq = MAX_FREQ_NUM;
1271 prop->clk_freq = &qcom_swrm_freq_tbl[0];
1272 prop->default_col = data->default_cols;
1273 prop->default_row = data->default_rows;
1275 ctrl->reg_read(ctrl, SWRM_COMP_HW_VERSION, &ctrl->version);
1277 ret = devm_request_threaded_irq(dev, ctrl->irq, NULL,
1278 qcom_swrm_irq_handler,
1279 IRQF_TRIGGER_RISING |
1283 dev_err(dev, "Failed to request soundwire irq\n");
1287 ret = sdw_bus_master_add(&ctrl->bus, dev, dev->fwnode);
1289 dev_err(dev, "Failed to register Soundwire controller (%d)\n",
1294 qcom_swrm_init(ctrl);
1295 wait_for_completion_timeout(&ctrl->enumeration,
1296 msecs_to_jiffies(TIMEOUT_MS));
1297 ret = qcom_swrm_register_dais(ctrl);
1299 goto err_master_add;
1301 dev_info(dev, "Qualcomm Soundwire controller v%x.%x.%x Registered\n",
1302 (ctrl->version >> 24) & 0xff, (ctrl->version >> 16) & 0xff,
1303 ctrl->version & 0xffff);
1308 sdw_bus_master_delete(&ctrl->bus);
1310 clk_disable_unprepare(ctrl->hclk);
1315 static int qcom_swrm_remove(struct platform_device *pdev)
1317 struct qcom_swrm_ctrl *ctrl = dev_get_drvdata(&pdev->dev);
1319 sdw_bus_master_delete(&ctrl->bus);
1320 clk_disable_unprepare(ctrl->hclk);
1325 static const struct of_device_id qcom_swrm_of_match[] = {
1326 { .compatible = "qcom,soundwire-v1.3.0", .data = &swrm_v1_3_data },
1327 { .compatible = "qcom,soundwire-v1.5.1", .data = &swrm_v1_5_data },
1331 MODULE_DEVICE_TABLE(of, qcom_swrm_of_match);
1333 static struct platform_driver qcom_swrm_driver = {
1334 .probe = &qcom_swrm_probe,
1335 .remove = &qcom_swrm_remove,
1337 .name = "qcom-soundwire",
1338 .of_match_table = qcom_swrm_of_match,
1341 module_platform_driver(qcom_swrm_driver);
1343 MODULE_DESCRIPTION("Qualcomm soundwire driver");
1344 MODULE_LICENSE("GPL v2");