1
2
3
4
5
6
7
8
9#include <linux/acpi.h>
10#include <linux/module.h>
11#include <linux/platform_device.h>
12#include <linux/property.h>
13#include <linux/usb/pd.h>
14#include <linux/usb/role.h>
15#include <linux/usb/typec_mux.h>
16#include <linux/usb/typec_dp.h>
17#include <linux/usb/typec_tbt.h>
18
19#include <asm/intel_scu_ipc.h>
20
21#define PMC_USBC_CMD 0xa7
22
23
24#define PMC_USB_RESP_STATUS_FAILURE BIT(0)
25#define PMC_USB_RESP_STATUS_FATAL BIT(1)
26
27
28enum {
29 PMC_USB_CONNECT,
30 PMC_USB_DISCONNECT,
31 PMC_USB_SAFE_MODE,
32 PMC_USB_ALT_MODE,
33 PMC_USB_DP_HPD,
34};
35
36#define PMC_USB_MSG_USB2_PORT_SHIFT 0
37#define PMC_USB_MSG_USB3_PORT_SHIFT 4
38#define PMC_USB_MSG_UFP_SHIFT 4
39#define PMC_USB_MSG_ORI_HSL_SHIFT 5
40#define PMC_USB_MSG_ORI_AUX_SHIFT 6
41
42
43struct altmode_req {
44 u8 usage;
45 u8 mode_type;
46 u8 mode_id;
47 u8 reserved;
48 u32 mode_data;
49} __packed;
50
51#define PMC_USB_MODE_TYPE_SHIFT 4
52
53enum {
54 PMC_USB_MODE_TYPE_USB,
55 PMC_USB_MODE_TYPE_DP,
56 PMC_USB_MODE_TYPE_TBT,
57};
58
59
60#define PMC_USB_ALTMODE_ACTIVE_CABLE BIT(2)
61
62#define PMC_USB_ALTMODE_ORI_SHIFT 1
63#define PMC_USB_ALTMODE_UFP_SHIFT 3
64
65
66#define PMC_USB_ALTMODE_DP_MODE_SHIFT 8
67
68
69#define PMC_USB_ALTMODE_TBT_TYPE BIT(17)
70#define PMC_USB_ALTMODE_CABLE_TYPE BIT(18)
71#define PMC_USB_ALTMODE_ACTIVE_LINK BIT(20)
72#define PMC_USB_ALTMODE_FORCE_LSR BIT(23)
73#define PMC_USB_ALTMODE_CABLE_SPD(_s_) (((_s_) & GENMASK(2, 0)) << 25)
74#define PMC_USB_ALTMODE_CABLE_USB31 1
75#define PMC_USB_ALTMODE_CABLE_10GPS 2
76#define PMC_USB_ALTMODE_CABLE_20GPS 3
77#define PMC_USB_ALTMODE_TBT_GEN(_g_) (((_g_) & GENMASK(1, 0)) << 28)
78
79
80#define PMC_USB_DP_HPD_LVL BIT(4)
81#define PMC_USB_DP_HPD_IRQ BIT(5)
82
83
84
85
86#define IOM_PORT_STATUS_ACTIVITY_TYPE_MASK GENMASK(9, 6)
87#define IOM_PORT_STATUS_ACTIVITY_TYPE_SHIFT 6
88#define IOM_PORT_STATUS_ACTIVITY_TYPE_USB 0x03
89
90#define IOM_PORT_STATUS_ACTIVITY_TYPE_SAFE_MODE 0x04
91
92#define IOM_PORT_STATUS_ACTIVITY_TYPE_DP 0x05
93
94#define IOM_PORT_STATUS_ACTIVITY_TYPE_DP_MFD 0x06
95
96#define IOM_PORT_STATUS_ACTIVITY_TYPE_TBT 0x07
97#define IOM_PORT_STATUS_ACTIVITY_TYPE_ALT_MODE_USB 0x0c
98#define IOM_PORT_STATUS_ACTIVITY_TYPE_ALT_MODE_TBT_USB 0x0d
99
100#define IOM_PORT_STATUS_UFP BIT(10)
101
102#define IOM_PORT_STATUS_DHPD_HPD_STATUS_MASK GENMASK(13, 12)
103#define IOM_PORT_STATUS_DHPD_HPD_STATUS_SHIFT 12
104#define IOM_PORT_STATUS_DHPD_HPD_STATUS_ASSERT 0x01
105#define IOM_PORT_STATUS_DHPD_HPD_SOURCE_TBT BIT(14)
106#define IOM_PORT_STATUS_CONNECTED BIT(31)
107
108#define IOM_PORT_ACTIVITY_IS(_status_, _type_) \
109 ((((_status_) & IOM_PORT_STATUS_ACTIVITY_TYPE_MASK) >> \
110 IOM_PORT_STATUS_ACTIVITY_TYPE_SHIFT) == \
111 (IOM_PORT_STATUS_ACTIVITY_TYPE_##_type_))
112
113#define IOM_PORT_HPD_ASSERTED(_status_) \
114 ((((_status_) & IOM_PORT_STATUS_DHPD_HPD_STATUS_MASK) >> \
115 IOM_PORT_STATUS_DHPD_HPD_STATUS_SHIFT) & \
116 IOM_PORT_STATUS_DHPD_HPD_STATUS_ASSERT)
117
118struct pmc_usb;
119
120struct pmc_usb_port {
121 int num;
122 u32 iom_status;
123 struct pmc_usb *pmc;
124 struct typec_mux *typec_mux;
125 struct typec_switch *typec_sw;
126 struct usb_role_switch *usb_sw;
127
128 enum typec_orientation orientation;
129 enum usb_role role;
130
131 u8 usb2_port;
132 u8 usb3_port;
133
134 enum typec_orientation sbu_orientation;
135 enum typec_orientation hsl_orientation;
136};
137
138struct pmc_usb {
139 u8 num_ports;
140 struct device *dev;
141 struct intel_scu_ipc_dev *ipc;
142 struct pmc_usb_port *port;
143 struct acpi_device *iom_adev;
144 void __iomem *iom_base;
145 u32 iom_port_status_offset;
146};
147
148static void update_port_status(struct pmc_usb_port *port)
149{
150 u8 port_num;
151
152
153 port_num = port->usb3_port - 1;
154
155 port->iom_status = readl(port->pmc->iom_base +
156 port->pmc->iom_port_status_offset +
157 port_num * sizeof(u32));
158}
159
160static int sbu_orientation(struct pmc_usb_port *port)
161{
162 if (port->sbu_orientation)
163 return port->sbu_orientation - 1;
164
165 return port->orientation - 1;
166}
167
168static int hsl_orientation(struct pmc_usb_port *port)
169{
170 if (port->hsl_orientation)
171 return port->hsl_orientation - 1;
172
173 return port->orientation - 1;
174}
175
176static int pmc_usb_command(struct pmc_usb_port *port, u8 *msg, u32 len)
177{
178 u8 response[4];
179 u8 status_res;
180 int ret;
181
182
183
184
185
186
187 ret = intel_scu_ipc_dev_command(port->pmc->ipc, PMC_USBC_CMD, 0, msg,
188 len, response, sizeof(response));
189
190 if (ret)
191 return ret;
192
193 status_res = (msg[0] & 0xf) < PMC_USB_SAFE_MODE ?
194 response[2] : response[1];
195
196 if (status_res & PMC_USB_RESP_STATUS_FAILURE) {
197 if (status_res & PMC_USB_RESP_STATUS_FATAL)
198 return -EIO;
199
200 return -EBUSY;
201 }
202
203 return 0;
204}
205
206static int
207pmc_usb_mux_dp_hpd(struct pmc_usb_port *port, struct typec_displayport_data *dp)
208{
209 u8 msg[2] = { };
210 int ret;
211
212 msg[0] = PMC_USB_DP_HPD;
213 msg[0] |= port->usb3_port << PMC_USB_MSG_USB3_PORT_SHIFT;
214
215
216 if (!IOM_PORT_HPD_ASSERTED(port->iom_status) &&
217 dp->status & DP_STATUS_IRQ_HPD &&
218 dp->status & DP_STATUS_HPD_STATE) {
219 msg[1] = PMC_USB_DP_HPD_LVL;
220 ret = pmc_usb_command(port, msg, sizeof(msg));
221 if (ret)
222 return ret;
223 }
224
225 if (dp->status & DP_STATUS_IRQ_HPD)
226 msg[1] = PMC_USB_DP_HPD_IRQ;
227
228 if (dp->status & DP_STATUS_HPD_STATE)
229 msg[1] |= PMC_USB_DP_HPD_LVL;
230
231 return pmc_usb_command(port, msg, sizeof(msg));
232}
233
234static int
235pmc_usb_mux_dp(struct pmc_usb_port *port, struct typec_mux_state *state)
236{
237 struct typec_displayport_data *data = state->data;
238 struct altmode_req req = { };
239 int ret;
240
241 if (IOM_PORT_ACTIVITY_IS(port->iom_status, DP) ||
242 IOM_PORT_ACTIVITY_IS(port->iom_status, DP_MFD)) {
243 if (IOM_PORT_HPD_ASSERTED(port->iom_status) &&
244 (!(data->status & DP_STATUS_IRQ_HPD) &&
245 data->status & DP_STATUS_HPD_STATE))
246 return 0;
247
248 return pmc_usb_mux_dp_hpd(port, state->data);
249 }
250
251 req.usage = PMC_USB_ALT_MODE;
252 req.usage |= port->usb3_port << PMC_USB_MSG_USB3_PORT_SHIFT;
253 req.mode_type = PMC_USB_MODE_TYPE_DP << PMC_USB_MODE_TYPE_SHIFT;
254
255 req.mode_data = (port->orientation - 1) << PMC_USB_ALTMODE_ORI_SHIFT;
256 req.mode_data |= (port->role - 1) << PMC_USB_ALTMODE_UFP_SHIFT;
257
258 req.mode_data |= (state->mode - TYPEC_STATE_MODAL) <<
259 PMC_USB_ALTMODE_DP_MODE_SHIFT;
260
261 ret = pmc_usb_command(port, (void *)&req, sizeof(req));
262 if (ret)
263 return ret;
264
265 if (data->status & (DP_STATUS_IRQ_HPD | DP_STATUS_HPD_STATE))
266 return pmc_usb_mux_dp_hpd(port, state->data);
267
268 return 0;
269}
270
271static int
272pmc_usb_mux_tbt(struct pmc_usb_port *port, struct typec_mux_state *state)
273{
274 struct typec_thunderbolt_data *data = state->data;
275 u8 cable_rounded = TBT_CABLE_ROUNDED_SUPPORT(data->cable_mode);
276 u8 cable_speed = TBT_CABLE_SPEED(data->cable_mode);
277 struct altmode_req req = { };
278
279 if (IOM_PORT_ACTIVITY_IS(port->iom_status, TBT) ||
280 IOM_PORT_ACTIVITY_IS(port->iom_status, ALT_MODE_TBT_USB))
281 return 0;
282
283 req.usage = PMC_USB_ALT_MODE;
284 req.usage |= port->usb3_port << PMC_USB_MSG_USB3_PORT_SHIFT;
285 req.mode_type = PMC_USB_MODE_TYPE_TBT << PMC_USB_MODE_TYPE_SHIFT;
286
287 req.mode_data = (port->orientation - 1) << PMC_USB_ALTMODE_ORI_SHIFT;
288 req.mode_data |= (port->role - 1) << PMC_USB_ALTMODE_UFP_SHIFT;
289
290 if (TBT_ADAPTER(data->device_mode) == TBT_ADAPTER_TBT3)
291 req.mode_data |= PMC_USB_ALTMODE_TBT_TYPE;
292
293 if (data->cable_mode & TBT_CABLE_OPTICAL)
294 req.mode_data |= PMC_USB_ALTMODE_CABLE_TYPE;
295
296 if (data->cable_mode & TBT_CABLE_LINK_TRAINING)
297 req.mode_data |= PMC_USB_ALTMODE_ACTIVE_LINK;
298
299 if (data->enter_vdo & TBT_ENTER_MODE_ACTIVE_CABLE)
300 req.mode_data |= PMC_USB_ALTMODE_ACTIVE_CABLE;
301
302 req.mode_data |= PMC_USB_ALTMODE_CABLE_SPD(cable_speed);
303
304 req.mode_data |= PMC_USB_ALTMODE_TBT_GEN(cable_rounded);
305
306 return pmc_usb_command(port, (void *)&req, sizeof(req));
307}
308
309static int
310pmc_usb_mux_usb4(struct pmc_usb_port *port, struct typec_mux_state *state)
311{
312 struct enter_usb_data *data = state->data;
313 struct altmode_req req = { };
314 u8 cable_speed;
315
316 if (IOM_PORT_ACTIVITY_IS(port->iom_status, TBT) ||
317 IOM_PORT_ACTIVITY_IS(port->iom_status, ALT_MODE_TBT_USB))
318 return 0;
319
320 req.usage = PMC_USB_ALT_MODE;
321 req.usage |= port->usb3_port << PMC_USB_MSG_USB3_PORT_SHIFT;
322 req.mode_type = PMC_USB_MODE_TYPE_TBT << PMC_USB_MODE_TYPE_SHIFT;
323
324
325 req.mode_data = PMC_USB_ALTMODE_FORCE_LSR;
326
327 if (data->active_link_training)
328 req.mode_data |= PMC_USB_ALTMODE_ACTIVE_LINK;
329
330 req.mode_data |= (port->orientation - 1) << PMC_USB_ALTMODE_ORI_SHIFT;
331 req.mode_data |= (port->role - 1) << PMC_USB_ALTMODE_UFP_SHIFT;
332
333 switch ((data->eudo & EUDO_CABLE_TYPE_MASK) >> EUDO_CABLE_TYPE_SHIFT) {
334 case EUDO_CABLE_TYPE_PASSIVE:
335 break;
336 case EUDO_CABLE_TYPE_OPTICAL:
337 req.mode_data |= PMC_USB_ALTMODE_CABLE_TYPE;
338 fallthrough;
339 default:
340 req.mode_data |= PMC_USB_ALTMODE_ACTIVE_CABLE;
341
342
343
344
345 req.mode_data |= PMC_USB_ALTMODE_TBT_GEN(1);
346 break;
347 }
348
349 cable_speed = (data->eudo & EUDO_CABLE_SPEED_MASK) >> EUDO_CABLE_SPEED_SHIFT;
350 req.mode_data |= PMC_USB_ALTMODE_CABLE_SPD(cable_speed);
351
352 return pmc_usb_command(port, (void *)&req, sizeof(req));
353}
354
355static int pmc_usb_mux_safe_state(struct pmc_usb_port *port)
356{
357 u8 msg;
358
359 if (IOM_PORT_ACTIVITY_IS(port->iom_status, SAFE_MODE))
360 return 0;
361
362 msg = PMC_USB_SAFE_MODE;
363 msg |= port->usb3_port << PMC_USB_MSG_USB3_PORT_SHIFT;
364
365 return pmc_usb_command(port, &msg, sizeof(msg));
366}
367
368static int pmc_usb_disconnect(struct pmc_usb_port *port)
369{
370 struct typec_displayport_data data = { };
371 u8 msg[2];
372
373 if (!(port->iom_status & IOM_PORT_STATUS_CONNECTED))
374 return 0;
375
376
377 if (IOM_PORT_HPD_ASSERTED(port->iom_status))
378 pmc_usb_mux_dp_hpd(port, &data);
379
380 msg[0] = PMC_USB_DISCONNECT;
381 msg[0] |= port->usb3_port << PMC_USB_MSG_USB3_PORT_SHIFT;
382
383 msg[1] = port->usb2_port << PMC_USB_MSG_USB2_PORT_SHIFT;
384
385 return pmc_usb_command(port, msg, sizeof(msg));
386}
387
388static int pmc_usb_connect(struct pmc_usb_port *port, enum usb_role role)
389{
390 u8 ufp = role == USB_ROLE_DEVICE ? 1 : 0;
391 u8 msg[2];
392 int ret;
393
394 if (port->orientation == TYPEC_ORIENTATION_NONE)
395 return -EINVAL;
396
397 if (port->iom_status & IOM_PORT_STATUS_CONNECTED) {
398 if (port->role == role || port->role == USB_ROLE_NONE)
399 return 0;
400
401
402 ret = pmc_usb_disconnect(port);
403 if (ret)
404 return ret;
405 }
406
407 msg[0] = PMC_USB_CONNECT;
408 msg[0] |= port->usb3_port << PMC_USB_MSG_USB3_PORT_SHIFT;
409
410 msg[1] = port->usb2_port << PMC_USB_MSG_USB2_PORT_SHIFT;
411 msg[1] |= ufp << PMC_USB_MSG_UFP_SHIFT;
412 msg[1] |= hsl_orientation(port) << PMC_USB_MSG_ORI_HSL_SHIFT;
413 msg[1] |= sbu_orientation(port) << PMC_USB_MSG_ORI_AUX_SHIFT;
414
415 return pmc_usb_command(port, msg, sizeof(msg));
416}
417
418static int
419pmc_usb_mux_set(struct typec_mux *mux, struct typec_mux_state *state)
420{
421 struct pmc_usb_port *port = typec_mux_get_drvdata(mux);
422
423 update_port_status(port);
424
425 if (port->orientation == TYPEC_ORIENTATION_NONE || port->role == USB_ROLE_NONE)
426 return 0;
427
428 if (state->mode == TYPEC_STATE_SAFE)
429 return pmc_usb_mux_safe_state(port);
430 if (state->mode == TYPEC_STATE_USB)
431 return pmc_usb_connect(port, port->role);
432
433 if (state->alt) {
434 switch (state->alt->svid) {
435 case USB_TYPEC_TBT_SID:
436 return pmc_usb_mux_tbt(port, state);
437 case USB_TYPEC_DP_SID:
438 return pmc_usb_mux_dp(port, state);
439 }
440 } else {
441 switch (state->mode) {
442 case TYPEC_MODE_USB2:
443
444 break;
445 case TYPEC_MODE_USB3:
446 return pmc_usb_connect(port, port->role);
447 case TYPEC_MODE_USB4:
448 return pmc_usb_mux_usb4(port, state);
449 }
450 }
451
452 return -EOPNOTSUPP;
453}
454
455static int pmc_usb_set_orientation(struct typec_switch *sw,
456 enum typec_orientation orientation)
457{
458 struct pmc_usb_port *port = typec_switch_get_drvdata(sw);
459
460 update_port_status(port);
461
462 port->orientation = orientation;
463
464 return 0;
465}
466
467static int pmc_usb_set_role(struct usb_role_switch *sw, enum usb_role role)
468{
469 struct pmc_usb_port *port = usb_role_switch_get_drvdata(sw);
470 int ret;
471
472 update_port_status(port);
473
474 if (role == USB_ROLE_NONE)
475 ret = pmc_usb_disconnect(port);
476 else
477 ret = pmc_usb_connect(port, role);
478
479 port->role = role;
480
481 return ret;
482}
483
484static int pmc_usb_register_port(struct pmc_usb *pmc, int index,
485 struct fwnode_handle *fwnode)
486{
487 struct pmc_usb_port *port = &pmc->port[index];
488 struct usb_role_switch_desc desc = { };
489 struct typec_switch_desc sw_desc = { };
490 struct typec_mux_desc mux_desc = { };
491 const char *str;
492 int ret;
493
494 ret = fwnode_property_read_u8(fwnode, "usb2-port-number", &port->usb2_port);
495 if (ret)
496 return ret;
497
498 ret = fwnode_property_read_u8(fwnode, "usb3-port-number", &port->usb3_port);
499 if (ret)
500 return ret;
501
502 ret = fwnode_property_read_string(fwnode, "sbu-orientation", &str);
503 if (!ret)
504 port->sbu_orientation = typec_find_orientation(str);
505
506 ret = fwnode_property_read_string(fwnode, "hsl-orientation", &str);
507 if (!ret)
508 port->hsl_orientation = typec_find_orientation(str);
509
510 port->num = index;
511 port->pmc = pmc;
512
513 sw_desc.fwnode = fwnode;
514 sw_desc.drvdata = port;
515 sw_desc.name = fwnode_get_name(fwnode);
516 sw_desc.set = pmc_usb_set_orientation;
517
518 port->typec_sw = typec_switch_register(pmc->dev, &sw_desc);
519 if (IS_ERR(port->typec_sw))
520 return PTR_ERR(port->typec_sw);
521
522 mux_desc.fwnode = fwnode;
523 mux_desc.drvdata = port;
524 mux_desc.name = fwnode_get_name(fwnode);
525 mux_desc.set = pmc_usb_mux_set;
526
527 port->typec_mux = typec_mux_register(pmc->dev, &mux_desc);
528 if (IS_ERR(port->typec_mux)) {
529 ret = PTR_ERR(port->typec_mux);
530 goto err_unregister_switch;
531 }
532
533 desc.fwnode = fwnode;
534 desc.driver_data = port;
535 desc.name = fwnode_get_name(fwnode);
536 desc.set = pmc_usb_set_role;
537
538 port->usb_sw = usb_role_switch_register(pmc->dev, &desc);
539 if (IS_ERR(port->usb_sw)) {
540 ret = PTR_ERR(port->usb_sw);
541 goto err_unregister_mux;
542 }
543
544 return 0;
545
546err_unregister_mux:
547 typec_mux_unregister(port->typec_mux);
548
549err_unregister_switch:
550 typec_switch_unregister(port->typec_sw);
551
552 return ret;
553}
554
555static int is_memory(struct acpi_resource *res, void *data)
556{
557 struct resource r;
558
559 return !acpi_dev_resource_memory(res, &r);
560}
561
562
563static const struct acpi_device_id iom_acpi_ids[] = {
564
565 { "INTC1072", 0x560, },
566
567
568 { "INTC1079", 0x160, },
569 {}
570};
571
572static int pmc_usb_probe_iom(struct pmc_usb *pmc)
573{
574 struct list_head resource_list;
575 struct resource_entry *rentry;
576 static const struct acpi_device_id *dev_id;
577 struct acpi_device *adev = NULL;
578 int ret;
579
580 for (dev_id = &iom_acpi_ids[0]; dev_id->id[0]; dev_id++) {
581 if (acpi_dev_present(dev_id->id, NULL, -1)) {
582 pmc->iom_port_status_offset = (u32)dev_id->driver_data;
583 adev = acpi_dev_get_first_match_dev(dev_id->id, NULL, -1);
584 break;
585 }
586 }
587
588 if (!adev)
589 return -ENODEV;
590
591 INIT_LIST_HEAD(&resource_list);
592 ret = acpi_dev_get_resources(adev, &resource_list, is_memory, NULL);
593 if (ret < 0)
594 return ret;
595
596 rentry = list_first_entry_or_null(&resource_list, struct resource_entry, node);
597 if (rentry)
598 pmc->iom_base = devm_ioremap_resource(pmc->dev, rentry->res);
599
600 acpi_dev_free_resource_list(&resource_list);
601
602 if (!pmc->iom_base) {
603 acpi_dev_put(adev);
604 return -ENOMEM;
605 }
606
607 if (IS_ERR(pmc->iom_base)) {
608 acpi_dev_put(adev);
609 return PTR_ERR(pmc->iom_base);
610 }
611
612 pmc->iom_adev = adev;
613
614 return 0;
615}
616
617static int pmc_usb_probe(struct platform_device *pdev)
618{
619 struct fwnode_handle *fwnode = NULL;
620 struct pmc_usb *pmc;
621 int i = 0;
622 int ret;
623
624 pmc = devm_kzalloc(&pdev->dev, sizeof(*pmc), GFP_KERNEL);
625 if (!pmc)
626 return -ENOMEM;
627
628 device_for_each_child_node(&pdev->dev, fwnode)
629 pmc->num_ports++;
630
631
632 if (pmc->num_ports > 4) {
633 dev_err(&pdev->dev, "driver limited to 4 ports\n");
634 return -ERANGE;
635 }
636
637 pmc->port = devm_kcalloc(&pdev->dev, pmc->num_ports,
638 sizeof(struct pmc_usb_port), GFP_KERNEL);
639 if (!pmc->port)
640 return -ENOMEM;
641
642 pmc->ipc = devm_intel_scu_ipc_dev_get(&pdev->dev);
643 if (!pmc->ipc)
644 return -ENODEV;
645
646 pmc->dev = &pdev->dev;
647
648 ret = pmc_usb_probe_iom(pmc);
649 if (ret)
650 return ret;
651
652
653
654
655
656 for (i = 0; i < pmc->num_ports; i++) {
657 fwnode = device_get_next_child_node(pmc->dev, fwnode);
658 if (!fwnode)
659 break;
660
661 ret = pmc_usb_register_port(pmc, i, fwnode);
662 if (ret) {
663 fwnode_handle_put(fwnode);
664 goto err_remove_ports;
665 }
666 }
667
668 platform_set_drvdata(pdev, pmc);
669
670 return 0;
671
672err_remove_ports:
673 for (i = 0; i < pmc->num_ports; i++) {
674 typec_switch_unregister(pmc->port[i].typec_sw);
675 typec_mux_unregister(pmc->port[i].typec_mux);
676 usb_role_switch_unregister(pmc->port[i].usb_sw);
677 }
678
679 acpi_dev_put(pmc->iom_adev);
680
681 return ret;
682}
683
684static int pmc_usb_remove(struct platform_device *pdev)
685{
686 struct pmc_usb *pmc = platform_get_drvdata(pdev);
687 int i;
688
689 for (i = 0; i < pmc->num_ports; i++) {
690 typec_switch_unregister(pmc->port[i].typec_sw);
691 typec_mux_unregister(pmc->port[i].typec_mux);
692 usb_role_switch_unregister(pmc->port[i].usb_sw);
693 }
694
695 acpi_dev_put(pmc->iom_adev);
696
697 return 0;
698}
699
700static const struct acpi_device_id pmc_usb_acpi_ids[] = {
701 { "INTC105C", },
702 { }
703};
704MODULE_DEVICE_TABLE(acpi, pmc_usb_acpi_ids);
705
706static struct platform_driver pmc_usb_driver = {
707 .driver = {
708 .name = "intel_pmc_usb",
709 .acpi_match_table = ACPI_PTR(pmc_usb_acpi_ids),
710 },
711 .probe = pmc_usb_probe,
712 .remove = pmc_usb_remove,
713};
714
715module_platform_driver(pmc_usb_driver);
716
717MODULE_AUTHOR("Heikki Krogerus <heikki.krogerus@linux.intel.com>");
718MODULE_LICENSE("GPL v2");
719MODULE_DESCRIPTION("Intel PMC USB mux control");
720
