1// SPDX-License-Identifier: GPL-2.0
2/*
3 * * extcon-rtk-type-c.c - Realtek Extcon Type C driver
4 *
5 * Copyright (C) 2023 Realtek Semiconductor Corporation
6 *
7 */
8
9#include <linux/module.h>
10#include <linux/kernel.h>
11#include <linux/slab.h>
12#include <linux/platform_device.h>
13#include <linux/of.h>
14#include <linux/of_address.h>
15#include <linux/of_irq.h>
16#include <linux/io.h>
17#include <linux/interrupt.h>
18#include <linux/syscalls.h>
19#include <linux/suspend.h>
20#include <linux/debugfs.h>
21#include <linux/extcon.h>
22#include <linux/extcon-provider.h>
23#include <linux/sys_soc.h>
24#include <linux/nvmem-consumer.h>
25#include <linux/gpio/consumer.h>
26#include <linux/usb/otg.h>
27#include <linux/usb/typec.h>
28
29struct cc_param {
30 u32 rp_4p7k_code;
31 u32 rp_36k_code;
32 u32 rp_12k_code;
33 u32 rd_code;
34 u32 ra_code;
35 u32 vref_2p6v;
36 u32 vref_1p23v;
37 u32 vref_0p8v;
38 u32 vref_0p66v;
39 u32 vref_0p4v;
40 u32 vref_0p2v;
41 u32 vref_1_1p6v;
42 u32 vref_0_1p6v;
43};
44
45struct type_c_cfg {
46 int parameter_ver; /* Parameter version */
47 int cc_dfp_mode;
48 struct cc_param cc1_param;
49 struct cc_param cc2_param;
50
51 u32 debounce_val;
52 bool use_defalut_parameter;
53};
54
55struct type_c_data {
56 void __iomem *reg_base;
57 struct device *dev;
58 struct extcon_dev *edev;
59
60 u32 irq;
61
62 /* rd control GPIO only for rtd1295 */
63 struct gpio_desc *rd_ctrl_gpio_desc;
64
65 /* Parameters */
66 struct type_c_cfg *type_c_cfg;
67 u32 dfp_mode_rp_en;
68 u32 ufp_mode_rd_en;
69 u32 cc1_code;
70 u32 cc2_code;
71 u32 cc1_vref;
72 u32 cc2_vref;
73 u32 debounce; /* 1b,1us 7f,4.7us */
74
75 /* type_c state */
76 int connect_change;
77#define CONNECT_CHANGE 1
78#define CONNECT_NO_CHANGE 0
79 int cc_mode; /* cc is host or device */
80#define IN_HOST_MODE 0x10
81#define IN_DEVICE_MODE 0x20
82 int is_attach;
83#define IN_ATTACH 1
84#define TO_ATTACH 1
85#define IN_DETACH 0
86#define TO_DETACH 0
87 int at_cc1;
88#define AT_CC1 1
89#define AT_CC2 0
90
91 u32 int_status;
92 u32 cc_status;
93 /* protect the data member */
94 spinlock_t lock;
95 struct delayed_work delayed_work;
96
97 bool rd_en_at_first;
98
99 struct dentry *debug_dir;
100
101 struct typec_port *port;
102};
103
104/* Type C register offset */
105#define USB_TYPEC_CTRL_CC1_0 0x0
106#define USB_TYPEC_CTRL_CC1_1 0x4
107#define USB_TYPEC_CTRL_CC2_0 0x8
108#define USB_TYPEC_CTRL_CC2_1 0xC
109#define USB_TYPEC_STS 0x10
110#define USB_TYPEC_CTRL 0x14
111#define USB_DBUS_PWR_CTRL 0x18
112
113#define ENABLE_CC1 0x1
114#define ENABLE_CC2 0x2
115#define DISABLE_CC 0x0
116
117/* Bit mapping USB_TYPEC_CTRL_CC1_0 and USB_TYPEC_CTRL_CC2_0 */
118#define PLR_EN BIT(29)
119#define CC_SWITCH_MASK (BIT(29) | BIT(28) | BIT(27))
120#define CC_CODE_MASK (0xfffff << 7)
121#define rp4pk_code(val) ((0x1f & (val)) << 22)
122#define code_rp4pk(val) (((val) >> 22) & 0x1f)
123#define rp36k_code(val) ((0x1f & (val)) << 17)
124#define code_rp36k(val) (((val) >> 17) & 0x1f)
125#define rp12k_code(val) ((0x1f & (val)) << 12)
126#define code_rp12k(val) (((val) >> 12) & 0x1f)
127#define rd_code(val) ((0x1f & (val)) << 7)
128#define code_rd(val) (((val) >> 7) & 0x1f)
129#define dfp_mode(val) ((0x3 & (val)) << 5)
130#define EN_RP4P7K BIT(4)
131#define EN_RP36K BIT(3)
132#define EN_RP12K BIT(2)
133#define EN_RD BIT(1)
134#define EN_CC_DET BIT(0)
135
136#define CC_MODE_UFP 0x0
137#define CC_MODE_DFP_USB 0x1
138#define CC_MODE_DFP_1_5 0x2
139#define CC_MODE_DFP_3_0 0x3
140
141/*
142 * PARAMETER_V0:
143 * Realtek Kylin rtd1295
144 * Realtek Hercules rtd1395
145 * Realtek Thor rtd1619
146 * Realtek Hank rtd1319
147 * Realtek Groot rtd1312c
148 * PARAMETER_V1:
149 * Realtek Stark rtd1619b
150 * Realtek Parker rtd1319d
151 * Realtek Danvers rtd1315e
152 */
153enum parameter_version {
154 PARAMETER_V0 = 0,
155 PARAMETER_V1 = 1,
156};
157
158/* Bit mapping USB_TYPEC_CTRL_CC1_1 and USB_TYPEC_CTRL_CC2_1 */
159#define V0_vref_2p6v(val) ((0xf & (val)) << 26) /* Bit 29 for groot */
160#define V0_vref_1p23v(val) ((0xf & (val)) << 22)
161#define V0_vref_0p8v(val) ((0xf & (val)) << 18)
162#define V0_vref_0p66v(val) ((0xf & (val)) << 14)
163#define V0_vref_0p4v(val) ((0x7 & (val)) << 11)
164#define V0_vref_0p2v(val) ((0x7 & (val)) << 8)
165#define V0_vref_1_1p6v(val) ((0xf & (val)) << 4)
166#define V0_vref_0_1p6v(val) ((0xf & (val)) << 0)
167
168#define V0_decode_2p6v(val) (((val) >> 26) & 0xf) /* Bit 29 for groot */
169#define V0_decode_1p23v(val) (((val) >> 22) & 0xf)
170#define V0_decode_0p8v(val) (((val) >> 18) & 0xf)
171#define V0_decode_0p66v(val) (((val) >> 14) & 0xf)
172#define V0_decode_0p4v(val) (((val) >> 11) & 0x7)
173#define V0_decode_0p2v(val) (((val) >> 8) & 0x7)
174#define V0_decode_1_1p6v(val) (((val) >> 4) & 0xf)
175#define V0_decode_0_1p6v(val) (((val) >> 0) & 0xf)
176
177/* new Bit mapping USB_TYPEC_CTRL_CC1_1 and USB_TYPEC_CTRL_CC2_1 */
178#define V1_vref_2p6v(val) ((0xf & (val)) << 28)
179#define V1_vref_1p23v(val) ((0xf & (val)) << 24)
180#define V1_vref_0p8v(val) ((0xf & (val)) << 20)
181#define V1_vref_0p66v(val) ((0xf & (val)) << 16)
182#define V1_vref_0p4v(val) ((0xf & (val)) << 12)
183#define V1_vref_0p2v(val) ((0xf & (val)) << 8)
184#define V1_vref_1_1p6v(val) ((0xf & (val)) << 4)
185#define V1_vref_0_1p6v(val) ((0xf & (val)) << 0)
186
187#define V1_decode_2p6v(val) (((val) >> 28) & 0xf)
188#define V1_decode_1p23v(val) (((val) >> 24) & 0xf)
189#define V1_decode_0p8v(val) (((val) >> 20) & 0xf)
190#define V1_decode_0p66v(val) (((val) >> 16) & 0xf)
191#define V1_decode_0p4v(val) (((val) >> 12) & 0xf)
192#define V1_decode_0p2v(val) (((val) >> 8) & 0xf)
193#define V1_decode_1_1p6v(val) (((val) >> 4) & 0xf)
194#define V1_decode_0_1p6v(val) (((val) >> 0) & 0xf)
195
196/* Bit mapping USB_TYPEC_STS */
197#define DET_STS 0x7
198#define CC1_DET_STS (DET_STS)
199#define CC2_DET_STS (DET_STS << 3)
200#define DET_STS_RA 0x1
201#define DET_STS_RD 0x3
202#define DET_STS_RP 0x1
203#define CC1_DET_STS_RA (DET_STS_RA)
204#define CC1_DET_STS_RD (DET_STS_RD)
205#define CC1_DET_STS_RP (DET_STS_RP)
206#define CC2_DET_STS_RA (DET_STS_RA << 3)
207#define CC2_DET_STS_RD (DET_STS_RD << 3)
208#define CC2_DET_STS_RP (DET_STS_RP << 3)
209
210/* Bit mapping USB_TYPEC_CTRL */
211#define CC2_INT_EN BIT(11)
212#define CC1_INT_EN BIT(10)
213#define CC2_INT_STS BIT(9)
214#define CC1_INT_STS BIT(8)
215#define DEBOUNCE_TIME_MASK 0xff
216#define DEBOUNCE_EN BIT(0)
217#define ENABLE_TYPE_C_DETECT (CC1_INT_EN | CC2_INT_EN)
218#define ALL_CC_INT_STS (CC1_INT_STS | CC2_INT_STS)
219
220/* Parameter */
221#define DETECT_TIME 50 /* ms */
222
223static const unsigned int usb_type_c_cable[] = {
224 EXTCON_USB,
225 EXTCON_USB_HOST,
226 EXTCON_NONE,
227};
228
229enum usb_data_roles {
230 DR_NONE,
231 DR_HOST,
232 DR_DEVICE,
233};
234
235static const struct soc_device_attribute rtk_soc_kylin[] = {
236 { .family = "Realtek Kylin", },
237 { /* empty */ }
238};
239
240static int rtd129x_switch_type_c_plug_config(struct type_c_data *type_c,
241 int dr_mode, int cc)
242{
243 void __iomem *reg = type_c->reg_base + USB_TYPEC_CTRL_CC1_0;
244 int val_cc;
245
246#define TYPE_C_EN_SWITCH BIT(29)
247#define TYPE_C_TXRX_SEL (BIT(28) | BIT(27))
248#define TYPE_C_SWITCH_MASK (TYPE_C_EN_SWITCH | TYPE_C_TXRX_SEL)
249#define TYPE_C_ENABLE_CC1 TYPE_C_EN_SWITCH
250#define TYPE_C_ENABLE_CC2 (TYPE_C_EN_SWITCH | TYPE_C_TXRX_SEL)
251#define TYPE_C_DISABLE_CC ~TYPE_C_SWITCH_MASK
252
253 val_cc = readl(addr: reg);
254 val_cc &= ~TYPE_C_SWITCH_MASK;
255
256 if (cc == DISABLE_CC) {
257 val_cc &= TYPE_C_DISABLE_CC;
258 } else if (cc == ENABLE_CC1) {
259 val_cc |= TYPE_C_ENABLE_CC1;
260 } else if (cc == ENABLE_CC2) {
261 val_cc |= TYPE_C_ENABLE_CC2;
262 } else {
263 dev_err(type_c->dev, "%s: Error cc setting cc=0x%x\n", __func__, cc);
264 return -EINVAL;
265 }
266 writel(val: val_cc, addr: reg);
267
268 /* waiting cc stable for enable/disable */
269 mdelay(1);
270
271 dev_dbg(type_c->dev, "%s: cc=0x%x val_cc=0x%x usb_typec_ctrl_cc1_0=0x%x\n",
272 __func__, cc, val_cc, readl(reg));
273
274 return 0;
275}
276
277static inline void switch_type_c_plug_config(struct type_c_data *type_c,
278 int dr_mode, int cc)
279{
280 int ret = 0;
281
282 if (soc_device_match(matches: rtk_soc_kylin))
283 ret = rtd129x_switch_type_c_plug_config(type_c, dr_mode, cc);
284
285 if (ret < 0)
286 dev_err(type_c->dev, "%s: Error set type c plug config\n",
287 __func__);
288}
289
290static void switch_type_c_dr_mode(struct type_c_data *type_c, int dr_mode, int cc)
291{
292 bool is_host = false;
293 bool is_device = false;
294 bool polarity = false;
295 bool vbus = false;
296 bool ss = true;
297
298 switch_type_c_plug_config(type_c, dr_mode, cc);
299 if (cc == ENABLE_CC2)
300 polarity = true;
301
302 switch (dr_mode) {
303 case USB_DR_MODE_HOST:
304 is_host = true;
305 break;
306 case USB_DR_MODE_PERIPHERAL:
307 is_device = true;
308 vbus = true;
309 break;
310 default:
311 dev_dbg(type_c->dev, "%s dr_mode=%d ==> no host or device\n",
312 __func__, dr_mode);
313 break;
314 }
315
316 dev_dbg(type_c->dev, "%s is_host=%d is_device=%d vbus=%d polarity=%d\n",
317 __func__, is_host, is_device, vbus, polarity);
318
319 /* for EXTCON_USB device mode */
320 extcon_set_state(edev: type_c->edev, EXTCON_USB, state: is_device);
321 extcon_set_property(edev: type_c->edev, EXTCON_USB,
322 EXTCON_PROP_USB_VBUS,
323 prop_val: (union extcon_property_value)(int)vbus);
324 extcon_set_property(edev: type_c->edev, EXTCON_USB,
325 EXTCON_PROP_USB_TYPEC_POLARITY,
326 prop_val: (union extcon_property_value)(int)polarity);
327 extcon_set_property(edev: type_c->edev, EXTCON_USB,
328 EXTCON_PROP_USB_SS,
329 prop_val: (union extcon_property_value)(int)ss);
330
331 /* for EXTCON_USB_HOST host mode */
332 extcon_set_state(edev: type_c->edev, EXTCON_USB_HOST, state: is_host);
333 extcon_set_property(edev: type_c->edev, EXTCON_USB_HOST,
334 EXTCON_PROP_USB_VBUS,
335 prop_val: (union extcon_property_value)(int)vbus);
336 extcon_set_property(edev: type_c->edev, EXTCON_USB_HOST,
337 EXTCON_PROP_USB_TYPEC_POLARITY,
338 prop_val: (union extcon_property_value)(int)polarity);
339 extcon_set_property(edev: type_c->edev, EXTCON_USB_HOST,
340 EXTCON_PROP_USB_SS,
341 prop_val: (union extcon_property_value)(int)ss);
342
343 /* sync EXTCON_USB and EXTCON_USB_HOST */
344 extcon_sync(edev: type_c->edev, EXTCON_USB);
345 extcon_sync(edev: type_c->edev, EXTCON_USB_HOST);
346
347 if (type_c->port) {
348 switch (dr_mode) {
349 case USB_DR_MODE_HOST:
350 typec_set_data_role(port: type_c->port, role: TYPEC_HOST);
351 typec_set_pwr_role(port: type_c->port, role: TYPEC_SOURCE);
352 break;
353 case USB_DR_MODE_PERIPHERAL:
354 typec_set_data_role(port: type_c->port, role: TYPEC_DEVICE);
355 typec_set_pwr_role(port: type_c->port, role: TYPEC_SINK);
356 break;
357 default:
358 dev_dbg(type_c->dev, "%s unknown dr_mode=%d\n",
359 __func__, dr_mode);
360 break;
361 }
362 }
363}
364
365/* connector attached/detached */
366static int connector_attached(struct type_c_data *type_c, u32 cc, int dr_mode)
367{
368 void __iomem *reg = type_c->reg_base + USB_TYPEC_CTRL;
369
370 cancel_delayed_work(dwork: &type_c->delayed_work);
371
372 switch_type_c_dr_mode(type_c, dr_mode, cc);
373
374 writel(ENABLE_TYPE_C_DETECT | readl(addr: reg), addr: reg);
375
376 return 0;
377}
378
379static int connector_detached(struct type_c_data *type_c, u32 cc, int dr_mode)
380{
381 void __iomem *reg = type_c->reg_base + USB_TYPEC_CTRL;
382
383 writel(val: ~ENABLE_TYPE_C_DETECT & readl(addr: reg), addr: reg);
384
385 switch_type_c_dr_mode(type_c, dr_mode: 0, cc);
386
387 schedule_delayed_work(dwork: &type_c->delayed_work, delay: msecs_to_jiffies(DETECT_TIME));
388
389 return 0;
390}
391
392/* detect host device switch */
393static int __detect_host_device(struct type_c_data *type_c, u32 rp_or_rd_en)
394{
395 struct device *dev = type_c->dev;
396 void __iomem *reg_base = type_c->reg_base;
397 u32 cc1_config, cc2_config, default_ctrl;
398 u32 cc1_switch = 0;
399
400 default_ctrl = readl(addr: reg_base + USB_TYPEC_CTRL) & DEBOUNCE_TIME_MASK;
401 writel(val: default_ctrl, addr: reg_base + USB_TYPEC_CTRL);
402
403 cc1_config = readl(addr: reg_base + USB_TYPEC_CTRL_CC1_0);
404 cc2_config = readl(addr: reg_base + USB_TYPEC_CTRL_CC2_0);
405
406 cc1_config &= ~EN_CC_DET;
407 cc2_config &= ~EN_CC_DET;
408 writel(val: cc1_config, addr: reg_base + USB_TYPEC_CTRL_CC1_0);
409 writel(val: cc2_config, addr: reg_base + USB_TYPEC_CTRL_CC2_0);
410
411 if (soc_device_match(matches: rtk_soc_kylin))
412 cc1_switch = cc1_config & CC_SWITCH_MASK;
413
414 cc1_config &= CC_CODE_MASK;
415 cc1_config |= rp_or_rd_en | cc1_switch;
416 cc2_config &= CC_CODE_MASK;
417 cc2_config |= rp_or_rd_en;
418 writel(val: cc2_config, addr: reg_base + USB_TYPEC_CTRL_CC2_0);
419 writel(val: cc1_config, addr: reg_base + USB_TYPEC_CTRL_CC1_0);
420
421 /* For kylin to disable external rd control gpio */
422 if (soc_device_match(matches: rtk_soc_kylin)) {
423 struct gpio_desc *gpio = type_c->rd_ctrl_gpio_desc;
424
425 if (gpio && gpiod_direction_output(desc: gpio, value: 1))
426 dev_err(dev, "%s ERROR set rd_ctrl_gpio_desc fail\n", __func__);
427 }
428
429 cc1_config |= EN_CC_DET;
430 cc2_config |= EN_CC_DET;
431 writel(val: cc1_config, addr: reg_base + USB_TYPEC_CTRL_CC1_0);
432 writel(val: cc2_config, addr: reg_base + USB_TYPEC_CTRL_CC2_0);
433
434 return 0;
435}
436
437static int detect_device(struct type_c_data *type_c)
438{
439 return __detect_host_device(type_c, rp_or_rd_en: type_c->dfp_mode_rp_en);
440}
441
442static int detect_host(struct type_c_data *type_c)
443{
444 return __detect_host_device(type_c, rp_or_rd_en: type_c->ufp_mode_rd_en);
445}
446
447static int host_device_switch_detection(struct type_c_data *type_c)
448{
449 if (type_c->cc_mode == IN_HOST_MODE) {
450 type_c->cc_mode = IN_DEVICE_MODE;
451 detect_host(type_c);
452 } else {
453 type_c->cc_mode = IN_HOST_MODE;
454 detect_device(type_c);
455 }
456
457 return 0;
458}
459
460static int detect_type_c_state(struct type_c_data *type_c)
461{
462 struct device *dev = type_c->dev;
463 void __iomem *reg_base = type_c->reg_base;
464 u32 int_status, cc_status, cc_status_check;
465 unsigned long flags;
466
467 spin_lock_irqsave(&type_c->lock, flags);
468
469 int_status = readl(addr: reg_base + USB_TYPEC_CTRL);
470 cc_status = readl(addr: reg_base + USB_TYPEC_STS);
471
472 type_c->connect_change = CONNECT_NO_CHANGE;
473
474 switch (type_c->cc_mode | type_c->is_attach) {
475 case IN_HOST_MODE | IN_ATTACH:
476 if (((cc_status & CC1_DET_STS) == CC1_DET_STS) && type_c->at_cc1 == AT_CC1) {
477 dev_dbg(dev, "IN host mode and cc1 device detach (cc_status=0x%x)",
478 cc_status);
479 type_c->is_attach = TO_DETACH;
480 type_c->connect_change = CONNECT_CHANGE;
481 } else if (((cc_status & CC2_DET_STS) == CC2_DET_STS) &&
482 type_c->at_cc1 == AT_CC2) {
483 dev_dbg(dev, "IN host mode and cc2 device detach (cc_status=0x%x)",
484 cc_status);
485 type_c->is_attach = TO_DETACH;
486 type_c->connect_change = CONNECT_CHANGE;
487 }
488 break;
489 case IN_HOST_MODE | IN_DETACH:
490 cc_status_check = readl(addr: reg_base + USB_TYPEC_STS);
491 if (cc_status_check != (CC1_DET_STS | CC2_DET_STS)) {
492 if (in_interrupt()) {
493 /* Add delay time to avoid capacitive effect of cable. */
494 mdelay(300);
495 } else {
496 spin_unlock_irqrestore(lock: &type_c->lock, flags);
497 /* Add delay time to avoid capacitive effect of cable. */
498 msleep(msecs: 300);
499 spin_lock_irqsave(&type_c->lock, flags);
500 }
501 cc_status_check = readl(addr: reg_base + USB_TYPEC_STS);
502 }
503 if (cc_status != cc_status_check) {
504 dev_warn(dev, "IN_HOST_MODE: cc_status (0x%x) != cc_status_check (0x%x)\n",
505 cc_status, cc_status_check);
506 cc_status = readl(addr: reg_base + USB_TYPEC_STS);
507 }
508
509 if ((cc_status & CC1_DET_STS) == CC1_DET_STS_RD) {
510 dev_dbg(dev, "IN host mode and cc1 device attach (cc_status=0x%x)",
511 cc_status);
512 type_c->is_attach = TO_ATTACH;
513 type_c->at_cc1 = AT_CC1;
514 type_c->connect_change = CONNECT_CHANGE;
515 } else if ((cc_status & CC2_DET_STS) == CC2_DET_STS_RD) {
516 dev_dbg(dev, "In host mode and cc2 device attach (cc_status=0x%x)",
517 cc_status);
518 type_c->is_attach = TO_ATTACH;
519 type_c->at_cc1 = AT_CC2;
520 type_c->connect_change = CONNECT_CHANGE;
521 }
522 break;
523 case IN_DEVICE_MODE | IN_ATTACH:
524 if ((cc_status & CC1_DET_STS) < CC1_DET_STS_RP ||
525 (cc_status & CC2_DET_STS) < CC2_DET_STS_RP) {
526 /* Add a sw debounce to filter cc signal sent from apple pd adapter */
527 mdelay(5);
528 cc_status_check = readl(addr: reg_base + USB_TYPEC_STS);
529
530 if (cc_status != cc_status_check) {
531 dev_dbg(dev, "IN_DEVICE_MODE: cc_status (0x%x) != cc_status_check (0x%x) maybe use a pd adapter\n",
532 cc_status, cc_status_check);
533 cc_status = cc_status_check;
534 }
535 }
536
537 if ((cc_status & CC1_DET_STS) < CC1_DET_STS_RP && type_c->at_cc1 == AT_CC1) {
538 dev_dbg(dev, "IN device mode and cc1 host disconnect (cc_status=0x%x)",
539 cc_status);
540 type_c->is_attach = TO_DETACH;
541 type_c->connect_change = CONNECT_CHANGE;
542 } else if ((cc_status & CC2_DET_STS) < CC2_DET_STS_RP &&
543 type_c->at_cc1 == AT_CC2) {
544 dev_dbg(dev, "IN device mode and cc2 host disconnect (cc_status=0x%x)",
545 cc_status);
546 type_c->is_attach = TO_DETACH;
547 type_c->connect_change = CONNECT_CHANGE;
548 }
549 break;
550 case IN_DEVICE_MODE | IN_DETACH:
551 cc_status_check = readl(addr: reg_base + USB_TYPEC_STS);
552 if (cc_status_check != 0x0) {
553 if (in_interrupt()) {
554 /* Add delay time to avoid capacitive effect of cable. */
555 mdelay(300);
556 } else {
557 spin_unlock_irqrestore(lock: &type_c->lock, flags);
558 /* Add delay time to avoid capacitive effect of cable. */
559 msleep(msecs: 300);
560 spin_lock_irqsave(&type_c->lock, flags);
561 }
562 cc_status_check = readl(addr: reg_base + USB_TYPEC_STS);
563 }
564
565 if (cc_status != cc_status_check) {
566 dev_warn(dev, "IN_DEVICE_MODE: cc_status (0x%x) != cc_status_check (0x%x)\n",
567 cc_status, cc_status_check);
568 cc_status = readl(addr: reg_base + USB_TYPEC_STS);
569 }
570
571 if ((cc_status & CC1_DET_STS) >= CC1_DET_STS_RP) {
572 dev_dbg(dev, "IN device mode and cc1 host connect (cc_status=0x%x)",
573 cc_status);
574 type_c->at_cc1 = AT_CC1;
575 type_c->is_attach = TO_ATTACH;
576 type_c->connect_change = CONNECT_CHANGE;
577 } else if ((cc_status & CC2_DET_STS) >= CC2_DET_STS_RP) {
578 dev_dbg(dev, "IN device mode and cc2 host connect (cc_status=0x%x)",
579 cc_status);
580 type_c->at_cc1 = AT_CC2;
581 type_c->is_attach = TO_ATTACH;
582 type_c->connect_change = CONNECT_CHANGE;
583 }
584 break;
585 default:
586 dev_err(dev, "error host or device mode (cc_mode=%d, is_attach=%d) ",
587 type_c->cc_mode, type_c->is_attach);
588 }
589
590 type_c->int_status = int_status;
591 type_c->cc_status = cc_status;
592
593 spin_unlock_irqrestore(lock: &type_c->lock, flags);
594 return 0;
595}
596
597static void host_device_switch(struct work_struct *work)
598{
599 struct type_c_data *type_c = container_of(work, struct type_c_data,
600 delayed_work.work);
601 struct device *dev = type_c->dev;
602 unsigned long flags;
603 int connect_change = 0;
604 int cc_mode = 0;
605 int is_attach = 0;
606 int at_cc1 = 0;
607
608 spin_lock_irqsave(&type_c->lock, flags);
609 if (type_c->connect_change)
610 connect_change = type_c->connect_change;
611 spin_unlock_irqrestore(lock: &type_c->lock, flags);
612
613 if (!connect_change)
614 detect_type_c_state(type_c);
615
616 spin_lock_irqsave(&type_c->lock, flags);
617 if (type_c->connect_change) {
618 connect_change = type_c->connect_change;
619 cc_mode = type_c->cc_mode;
620 is_attach = type_c->is_attach;
621 at_cc1 = type_c->at_cc1;
622 type_c->connect_change = CONNECT_NO_CHANGE;
623 } else {
624 host_device_switch_detection(type_c);
625
626 schedule_delayed_work(dwork: &type_c->delayed_work, delay: msecs_to_jiffies(DETECT_TIME));
627 }
628 spin_unlock_irqrestore(lock: &type_c->lock, flags);
629
630 if (!connect_change)
631 return;
632
633 dev_dbg(dev, "%s: usb cable connection change\n", __func__);
634 if (cc_mode == IN_HOST_MODE) {
635 if (is_attach && at_cc1)
636 connector_attached(type_c, ENABLE_CC1, dr_mode: USB_DR_MODE_HOST);
637 else if (is_attach && !at_cc1)
638 connector_attached(type_c, ENABLE_CC2, dr_mode: USB_DR_MODE_HOST);
639 else
640 connector_detached(type_c, DISABLE_CC, dr_mode: USB_DR_MODE_HOST);
641 } else if (cc_mode == IN_DEVICE_MODE) {
642 if (is_attach && at_cc1)
643 connector_attached(type_c, ENABLE_CC1, dr_mode: USB_DR_MODE_PERIPHERAL);
644 else if (is_attach && !at_cc1)
645 connector_attached(type_c, ENABLE_CC2, dr_mode: USB_DR_MODE_PERIPHERAL);
646 else
647 connector_detached(type_c, DISABLE_CC, dr_mode: USB_DR_MODE_PERIPHERAL);
648 } else {
649 dev_err(dev, "Error: IN unknown mode %d to %s at %s (cc_status=0x%x)\n",
650 cc_mode, is_attach ? "attach" : "detach",
651 at_cc1 ? "cc1" : "cc2", type_c->cc_status);
652 }
653 dev_info(dev, "Connection change OK: IN %s mode to %s at %s (cc_status=0x%x)\n",
654 cc_mode == IN_HOST_MODE ? "host" : "device",
655 is_attach ? "attach" : "detach",
656 at_cc1 ? "cc1" : "cc2", type_c->cc_status);
657}
658
659static irqreturn_t type_c_detect_irq(int irq, void *__data)
660{
661 struct type_c_data *type_c = (struct type_c_data *)__data;
662 struct device *dev = type_c->dev;
663 void __iomem *reg = type_c->reg_base + USB_TYPEC_CTRL;
664 unsigned long flags;
665
666 detect_type_c_state(type_c);
667
668 spin_lock_irqsave(&type_c->lock, flags);
669
670 if (type_c->connect_change) {
671 dev_dbg(dev, "%s: IN %s mode to %s (at %s interrupt) int_status=0x%x, cc_status=0x%x",
672 __func__,
673 type_c->cc_mode == IN_HOST_MODE ? "host" : "device",
674 type_c->is_attach ? "attach" : "detach",
675 type_c->at_cc1 ? "cc1" : "cc2",
676 type_c->int_status, type_c->cc_status);
677
678 /* clear interrupt status */
679 writel(val: ~ALL_CC_INT_STS & readl(addr: reg), addr: reg);
680
681 cancel_delayed_work(dwork: &type_c->delayed_work);
682 schedule_delayed_work(dwork: &type_c->delayed_work, delay: msecs_to_jiffies(m: 0));
683 } else {
684 static int local_count;
685
686 /* if no connect_change, we keep the status to avoid status lose */
687 if (local_count++ > 10) {
688 /* clear interrupt status */
689 writel(val: ~ALL_CC_INT_STS & readl(addr: reg), addr: reg);
690 local_count = 0;
691 }
692 }
693
694 spin_unlock_irqrestore(lock: &type_c->lock, flags);
695
696 return IRQ_HANDLED;
697}
698
699static int type_c_port_dr_set(struct typec_port *port,
700 enum typec_data_role role)
701{
702 struct type_c_data *type_c = typec_get_drvdata(port);
703 u32 enable_cc;
704 unsigned long flags;
705
706 spin_lock_irqsave(&type_c->lock, flags);
707 enable_cc = type_c->at_cc1 ? ENABLE_CC1 : ENABLE_CC2;
708 spin_unlock_irqrestore(lock: &type_c->lock, flags);
709
710 if (role == TYPEC_HOST)
711 switch_type_c_dr_mode(type_c, dr_mode: USB_DR_MODE_HOST, cc: enable_cc);
712 else if (role == TYPEC_DEVICE)
713 switch_type_c_dr_mode(type_c, dr_mode: USB_DR_MODE_PERIPHERAL, cc: enable_cc);
714 else
715 switch_type_c_dr_mode(type_c, dr_mode: 0, DISABLE_CC);
716
717 return 0;
718}
719
720static const struct typec_operations type_c_port_ops = {
721 .dr_set = type_c_port_dr_set,
722};
723
724#ifdef CONFIG_DEBUG_FS
725static int type_c_parameter_show(struct seq_file *s, void *unused)
726{
727 struct type_c_data *type_c = s->private;
728 struct type_c_cfg *type_c_cfg = type_c->type_c_cfg;
729 struct cc_param *cc_param;
730 unsigned long flags;
731
732 spin_lock_irqsave(&type_c->lock, flags);
733
734 seq_printf(m: s, fmt: "cc_dfp_mode %s\n",
735 ({ char *tmp;
736 switch (type_c_cfg->cc_dfp_mode) {
737 case CC_MODE_DFP_USB:
738 tmp = "CC_MODE_DFP_USB"; break;
739 case CC_MODE_DFP_1_5:
740 tmp = "CC_MODE_DFP_1_5"; break;
741 case CC_MODE_DFP_3_0:
742 tmp = "CC_MODE_DFP_3_0"; break;
743 default:
744 tmp = "?"; break;
745 } tmp; }));
746
747 seq_printf(m: s, fmt: "dfp_mode_rp_en 0x%x\n", type_c->dfp_mode_rp_en);
748 seq_printf(m: s, fmt: "ufp_mode_rd_en 0x%x\n", type_c->ufp_mode_rd_en);
749 seq_printf(m: s, fmt: "cc1_code 0x%x\n", type_c->cc1_code);
750 seq_printf(m: s, fmt: "cc2_code 0x%x\n", type_c->cc2_code);
751 seq_printf(m: s, fmt: "cc1_vref 0x%x\n", type_c->cc1_vref);
752 seq_printf(m: s, fmt: "cc2_vref 0x%x\n", type_c->cc2_vref);
753 seq_printf(m: s, fmt: "debounce 0x%x\n", type_c->debounce);
754 seq_puts(m: s, s: "\n");
755
756 cc_param = &type_c_cfg->cc1_param;
757 seq_puts(m: s, s: "cc1_param:\n");
758 seq_printf(m: s, fmt: " rp_4p7k_code 0x%x\n", cc_param->rp_4p7k_code);
759 seq_printf(m: s, fmt: " rp_36k_code 0x%x\n", cc_param->rp_36k_code);
760 seq_printf(m: s, fmt: " rp_12k_code 0x%x\n", cc_param->rp_12k_code);
761 seq_printf(m: s, fmt: " rd_code 0x%x\n", cc_param->rd_code);
762 seq_printf(m: s, fmt: " vref_2p6v 0x%x\n", cc_param->vref_2p6v);
763 seq_printf(m: s, fmt: " vref_1p23v 0x%x\n", cc_param->vref_1p23v);
764 seq_printf(m: s, fmt: " vref_0p8v 0x%x\n", cc_param->vref_0p8v);
765 seq_printf(m: s, fmt: " vref_0p66v 0x%x\n", cc_param->vref_0p66v);
766 seq_printf(m: s, fmt: " vref_0p4v 0x%x\n", cc_param->vref_0p4v);
767 seq_printf(m: s, fmt: " vref_0p2v 0x%x\n", cc_param->vref_0p2v);
768 seq_printf(m: s, fmt: " vref_1_1p6v 0x%x\n", cc_param->vref_1_1p6v);
769 seq_printf(m: s, fmt: " vref_0_1p6v 0x%x\n", cc_param->vref_0_1p6v);
770
771 cc_param = &type_c_cfg->cc2_param;
772 seq_puts(m: s, s: "cc2_param:\n");
773 seq_printf(m: s, fmt: " rp_4p7k_code 0x%x\n", cc_param->rp_4p7k_code);
774 seq_printf(m: s, fmt: " rp_36k_code 0x%x\n", cc_param->rp_36k_code);
775 seq_printf(m: s, fmt: " rp_12k_code 0x%x\n", cc_param->rp_12k_code);
776 seq_printf(m: s, fmt: " rd_code 0x%x\n", cc_param->rd_code);
777 seq_printf(m: s, fmt: " vref_2p6v 0x%x\n", cc_param->vref_2p6v);
778 seq_printf(m: s, fmt: " vref_1p23v 0x%x\n", cc_param->vref_1p23v);
779 seq_printf(m: s, fmt: " vref_0p8v 0x%x\n", cc_param->vref_0p8v);
780 seq_printf(m: s, fmt: " vref_0p66v 0x%x\n", cc_param->vref_0p66v);
781 seq_printf(m: s, fmt: " vref_0p4v 0x%x\n", cc_param->vref_0p4v);
782 seq_printf(m: s, fmt: " vref_0p2v 0x%x\n", cc_param->vref_0p2v);
783 seq_printf(m: s, fmt: " vref_1_1p6v 0x%x\n", cc_param->vref_1_1p6v);
784 seq_printf(m: s, fmt: " vref_0_1p6v 0x%x\n", cc_param->vref_0_1p6v);
785
786 spin_unlock_irqrestore(lock: &type_c->lock, flags);
787
788 return 0;
789}
790
791static int type_c_parameter_open(struct inode *inode, struct file *file)
792{
793 return single_open(file, type_c_parameter_show, inode->i_private);
794}
795
796static const struct file_operations type_c_parameter_fops = {
797 .open = type_c_parameter_open,
798 .read = seq_read,
799 .llseek = seq_lseek,
800 .release = single_release,
801};
802
803static int type_c_status_show(struct seq_file *s, void *unused)
804{
805 struct type_c_data *type_c = s->private;
806 unsigned long flags;
807
808 spin_lock_irqsave(&type_c->lock, flags);
809
810 seq_printf(m: s, fmt: "In %s mode %s at %s (cc_status=0x%x)\n",
811 type_c->cc_mode == IN_HOST_MODE ? "host" : "device",
812 type_c->is_attach ? "attach" : "detach",
813 type_c->at_cc1 ? "cc1" : "cc2", type_c->cc_status);
814
815 seq_printf(m: s, fmt: "Read Register (type_c_ctrl_cc1_0=0x%x)\n",
816 readl(addr: type_c->reg_base + 0x0));
817 seq_printf(m: s, fmt: "Read Register (type_c_ctrl_cc1_1=0x%x)\n",
818 readl(addr: type_c->reg_base + 0x4));
819 seq_printf(m: s, fmt: "Read Register (type_c_ctrl_cc2_0=0x%x)\n",
820 readl(addr: type_c->reg_base + 0x8));
821 seq_printf(m: s, fmt: "Read Register (type_c_ctrl_cc2_1=0x%x)\n",
822 readl(addr: type_c->reg_base + 0xc));
823 seq_printf(m: s, fmt: "Read Register (type_c_status=0x%x)\n",
824 readl(addr: type_c->reg_base + 0x10));
825 seq_printf(m: s, fmt: "Read Register (type_c_ctrl=0x%x)\n",
826 readl(addr: type_c->reg_base + 0x14));
827
828 spin_unlock_irqrestore(lock: &type_c->lock, flags);
829
830 return 0;
831}
832
833static int type_c_status_open(struct inode *inode, struct file *file)
834{
835 return single_open(file, type_c_status_show, inode->i_private);
836}
837
838static const struct file_operations type_c_status_fops = {
839 .open = type_c_status_open,
840 .read = seq_read,
841 .llseek = seq_lseek,
842 .release = single_release,
843};
844
845static inline void create_debug_files(struct type_c_data *type_c)
846{
847 type_c->debug_dir = debugfs_create_dir(name: "type_c", parent: usb_debug_root);
848
849 debugfs_create_file("parameter", 0444, type_c->debug_dir, type_c,
850 &type_c_parameter_fops);
851
852 debugfs_create_file("status", 0444, type_c->debug_dir, type_c,
853 &type_c_status_fops);
854}
855
856static inline void remove_debug_files(struct type_c_data *type_c)
857{
858 debugfs_remove_recursive(dentry: type_c->debug_dir);
859}
860#else
861static inline void create_debug_files(struct type_c_data *type_c) { }
862static inline void remove_debug_files(struct type_c_data *type_c) { }
863#endif /* CONFIG_DEBUG_FS */
864
865/* Init and probe */
866
867static inline s8 get_value(s8 value)
868{
869 return (((s8)value & 0x8) ? (-(s8)(0x7 & value)) : ((s8)(value)));
870}
871
872static int __updated_type_c_parameter_by_efuse(struct type_c_data *type_c)
873{
874 struct type_c_cfg *type_c_cfg = type_c->type_c_cfg;
875 struct cc_param *cc_param;
876 struct nvmem_cell *cell;
877 s8 cc1_4p7k = 0;
878 s8 cc1_12k = 0;
879 s8 cc1_0p2v = 0;
880 s8 cc1_0p8v = 0;
881 s8 cc1_2p6v = 0;
882 s8 cc1_0p66v = 0;
883 s8 cc1_1p23v = 0;
884 s8 cc2_4p7k = 0;
885 s8 cc2_12k = 0;
886 s8 cc2_0p2v = 0;
887 s8 cc2_0p8v = 0;
888 s8 cc2_2p6v = 0;
889 s8 cc2_0p66v = 0;
890 s8 cc2_1p23v = 0;
891
892 cell = nvmem_cell_get(dev: type_c->dev, id: "usb-cal");
893 if (IS_ERR(ptr: cell)) {
894 dev_warn(type_c->dev, "%s failed to get usb-cal: %ld\n",
895 __func__, PTR_ERR(cell));
896 } else {
897 unsigned char *buf;
898 size_t buf_size;
899 int value_size = 4;
900 int value_mask = (BIT(value_size) - 1);
901
902 buf = nvmem_cell_read(cell, len: &buf_size);
903 if (!IS_ERR(ptr: buf)) {
904 cc1_0p2v = get_value(value: (buf[0] >> value_size * 0) & value_mask);
905 cc1_0p8v = get_value(value: (buf[0] >> value_size * 1) & value_mask);
906 cc1_2p6v = get_value(value: (buf[1] >> value_size * 0) & value_mask);
907 cc1_0p66v = get_value(value: (buf[1] >> value_size * 1) & value_mask);
908 cc1_1p23v = get_value(value: (buf[2] >> value_size * 0) & value_mask);
909
910 cc2_0p2v = get_value(value: (buf[3] >> value_size * 0) & value_mask);
911 cc2_0p8v = get_value(value: (buf[3] >> value_size * 1) & value_mask);
912 cc2_2p6v = get_value(value: (buf[4] >> value_size * 0) & value_mask);
913 cc2_0p66v = get_value(value: (buf[4] >> value_size * 1) & value_mask);
914 cc2_1p23v = get_value(value: (buf[5] >> value_size * 0) & value_mask);
915
916 cc1_4p7k = get_value(value: (buf[6] >> value_size * 0) & value_mask);
917 cc1_12k = get_value(value: (buf[6] >> value_size * 1) & value_mask);
918 cc2_4p7k = get_value(value: (buf[7] >> value_size * 0) & value_mask);
919 cc2_12k = get_value(value: (buf[7] >> value_size * 1) & value_mask);
920
921 kfree(objp: buf);
922 }
923 nvmem_cell_put(cell);
924 }
925
926 dev_dbg(type_c->dev, "check efuse cc1_4p7k=%d cc1_12k=%d cc2_4p7k=%d cc2_12k=%d\n",
927 cc1_4p7k, cc1_12k, cc2_4p7k, cc2_12k);
928 dev_dbg(type_c->dev, "check efuse cc1_0p2v=%d cc1_0p8v=%d cc1_2p6v=%d cc1_0p66v=%d cc1_1p23v=%d\n",
929 cc1_0p2v, cc1_0p8v, cc1_2p6v, cc1_0p66v, cc1_1p23v);
930 dev_dbg(type_c->dev, "check efuse cc2_0p2v=%d cc2_0p8v=%d cc2_2p6v=%d cc2_0p66v=%d cc2_1p23v=%d\n",
931 cc2_0p2v, cc2_0p8v, cc2_2p6v, cc2_0p66v, cc2_1p23v);
932
933 cc_param = &type_c_cfg->cc1_param;
934 cc_param->rp_4p7k_code = cc_param->rp_4p7k_code + cc1_4p7k;
935 cc_param->rp_12k_code = cc_param->rp_12k_code + cc1_12k;
936
937 cc_param->vref_1p23v = cc_param->vref_1p23v + cc1_1p23v;
938 cc_param->vref_0p66v = cc_param->vref_0p66v + cc1_0p66v;
939 cc_param->vref_2p6v = cc_param->vref_2p6v + cc1_2p6v;
940 cc_param->vref_0p8v = cc_param->vref_0p8v + cc1_0p8v;
941 cc_param->vref_0p2v = cc_param->vref_0p2v + cc1_0p2v;
942
943 cc_param = &type_c_cfg->cc2_param;
944 cc_param->rp_4p7k_code = cc_param->rp_4p7k_code + cc2_4p7k;
945 cc_param->rp_12k_code = cc_param->rp_12k_code + cc2_12k;
946
947 cc_param->vref_1p23v = cc_param->vref_1p23v + cc2_1p23v;
948 cc_param->vref_0p66v = cc_param->vref_0p66v + cc2_0p66v;
949 cc_param->vref_2p6v = cc_param->vref_2p6v + cc2_2p6v;
950 cc_param->vref_0p8v = cc_param->vref_0p8v + cc2_0p8v;
951 cc_param->vref_0p2v = cc_param->vref_0p2v + cc2_0p2v;
952
953 return 0;
954}
955
956static int __updated_type_c_parameter_by_efuse_v2(struct type_c_data *type_c)
957{
958 struct type_c_cfg *type_c_cfg = type_c->type_c_cfg;
959 struct cc_param *cc_param;
960 struct nvmem_cell *cell;
961 s8 cc1_4p7k = 0;
962 s8 cc1_12k = 0;
963 s8 cc1_0p2v = 0;
964 s8 cc1_0p8v = 0;
965 s8 cc1_2p6v = 0;
966 s8 cc1_0p66v = 0;
967 s8 cc1_1p23v = 0;
968 s8 cc2_4p7k = 0;
969 s8 cc2_12k = 0;
970 s8 cc2_0p2v = 0;
971 s8 cc2_0p8v = 0;
972 s8 cc2_2p6v = 0;
973 s8 cc2_0p66v = 0;
974 s8 cc2_1p23v = 0;
975
976 cell = nvmem_cell_get(dev: type_c->dev, id: "usb-type-c-cal");
977 if (IS_ERR(ptr: cell)) {
978 dev_warn(type_c->dev, "%s failed to get usb-type-c-cal: %ld\n",
979 __func__, PTR_ERR(cell));
980 } else {
981 unsigned char *buf;
982 size_t buf_size;
983 int value_size = 0;
984 int value_mask = (BIT(value_size) - 1);
985
986 buf = nvmem_cell_read(cell, len: &buf_size);
987 if (!IS_ERR(ptr: buf)) {
988 value_size = 5;
989 value_mask = (BIT(value_size) - 1);
990 cc1_4p7k = buf[0] & value_mask;
991 cc1_12k = buf[1] & value_mask;
992 cc2_4p7k = buf[2] & value_mask;
993 cc2_12k = buf[3] & value_mask;
994
995 value_size = 4;
996 value_mask = (BIT(value_size) - 1);
997 cc1_0p2v = (buf[4] >> value_size * 0) & value_mask;
998 cc1_0p66v = (buf[4] >> value_size * 1) & value_mask;
999 cc1_0p8v = (buf[5] >> value_size * 0) & value_mask;
1000 cc1_1p23v = (buf[5] >> value_size * 1) & value_mask;
1001 cc1_2p6v = (buf[6] >> value_size * 0) & value_mask;
1002
1003 cc2_0p2v = (buf[6] >> value_size * 1) & value_mask;
1004 cc2_0p66v = (buf[7] >> value_size * 0) & value_mask;
1005 cc2_0p8v = (buf[7] >> value_size * 1) & value_mask;
1006 cc2_1p23v = (buf[8] >> value_size * 0) & value_mask;
1007 cc2_2p6v = (buf[8] >> value_size * 1) & value_mask;
1008
1009 kfree(objp: buf);
1010 }
1011 nvmem_cell_put(cell);
1012 }
1013
1014 dev_dbg(type_c->dev, "check efuse v2 cc1_4p7k=%d cc1_12k=%d cc2_4p7k=%d cc2_12k=%d\n",
1015 cc1_4p7k, cc1_12k, cc2_4p7k, cc2_12k);
1016 dev_dbg(type_c->dev, "check efuse v2 cc1_0p2v=%d cc1_0p8v=%d cc1_2p6v=%d cc1_0p66v=%d cc1_1p23v=%d\n",
1017 cc1_0p2v, cc1_0p8v, cc1_2p6v, cc1_0p66v, cc1_1p23v);
1018 dev_dbg(type_c->dev, "check efuse v2 cc2_0p2v=%d cc2_0p8v=%d cc2_2p6v=%d cc2_0p66v=%d cc2_1p23v=%d\n",
1019 cc2_0p2v, cc2_0p8v, cc2_2p6v, cc2_0p66v, cc2_1p23v);
1020
1021 cc_param = &type_c_cfg->cc1_param;
1022 if (cc1_4p7k)
1023 cc_param->rp_4p7k_code = cc1_4p7k;
1024 if (cc1_12k)
1025 cc_param->rp_12k_code = cc1_12k;
1026
1027 if (cc1_1p23v)
1028 cc_param->vref_1p23v = cc1_1p23v;
1029 if (cc1_0p66v)
1030 cc_param->vref_0p66v = cc1_0p66v;
1031 if (cc1_2p6v)
1032 cc_param->vref_2p6v = cc1_2p6v;
1033 if (cc1_0p8v)
1034 cc_param->vref_0p8v = cc1_0p8v;
1035 if (cc1_0p2v)
1036 cc_param->vref_0p2v = cc1_0p2v;
1037
1038 cc_param = &type_c_cfg->cc2_param;
1039 if (cc2_4p7k)
1040 cc_param->rp_4p7k_code = cc2_4p7k;
1041 if (cc2_12k)
1042 cc_param->rp_12k_code = cc2_12k;
1043
1044 if (cc2_1p23v)
1045 cc_param->vref_1p23v = cc2_1p23v;
1046 if (cc2_0p66v)
1047 cc_param->vref_0p66v = cc2_0p66v;
1048 if (cc2_2p6v)
1049 cc_param->vref_2p6v = cc2_2p6v;
1050 if (cc2_0p8v)
1051 cc_param->vref_0p8v = cc2_0p8v;
1052 if (cc2_0p2v)
1053 cc_param->vref_0p2v = cc2_0p2v;
1054
1055 return 0;
1056}
1057
1058static void get_default_type_c_parameter(struct type_c_data *type_c)
1059{
1060 void __iomem *reg;
1061 int val;
1062
1063 type_c->dfp_mode_rp_en = dfp_mode(CC_MODE_DFP_3_0) | EN_RP4P7K;
1064 type_c->ufp_mode_rd_en = EN_RD;
1065
1066 reg = type_c->reg_base + USB_TYPEC_CTRL_CC1_0;
1067 val = readl(addr: reg);
1068 type_c->cc1_code = CC_CODE_MASK & val;
1069
1070 reg = type_c->reg_base + USB_TYPEC_CTRL_CC2_0;
1071 val = readl(addr: reg);
1072 type_c->cc2_code = CC_CODE_MASK & val;
1073
1074 reg = type_c->reg_base + USB_TYPEC_CTRL_CC1_1;
1075 val = readl(addr: reg);
1076 type_c->cc1_vref = val;
1077
1078 reg = type_c->reg_base + USB_TYPEC_CTRL_CC2_1;
1079 val = readl(addr: reg);
1080 type_c->cc2_vref = val;
1081
1082 reg = type_c->reg_base + USB_TYPEC_CTRL;
1083 val = readl(addr: reg);
1084 type_c->debounce = DEBOUNCE_TIME_MASK & val;
1085}
1086
1087static int setup_type_c_parameter(struct type_c_data *type_c)
1088{
1089 struct type_c_cfg *type_c_cfg = type_c->type_c_cfg;
1090 struct cc_param *cc_param;
1091 struct soc_device_attribute rtk_soc_efuse_v1[] = {
1092 { .family = "Realtek Phoenix",},
1093 { .family = "Realtek Kylin",},
1094 { .family = "Realtek Hercules",},
1095 { .family = "Realtek Thor",},
1096 { .family = "Realtek Hank",},
1097 { .family = "Realtek Groot",},
1098 { .family = "Realtek Stark",},
1099 { .family = "Realtek Parker",},
1100 { /* empty */ }
1101 };
1102
1103 if (type_c_cfg->use_defalut_parameter) {
1104 get_default_type_c_parameter(type_c);
1105 return 0;
1106 }
1107
1108 if (soc_device_match(matches: rtk_soc_efuse_v1))
1109 __updated_type_c_parameter_by_efuse(type_c);
1110 else
1111 __updated_type_c_parameter_by_efuse_v2(type_c);
1112
1113 /*
1114 * UFP rd vref_ufp : 1p23v, 0p66v, 0p2v
1115 * DFP_USB rp36k vref_dfp_usb: 0_1p6v, 0p2v, unused
1116 * DFP_1.5 rp12k vref_dfp_1_5: 1_1p6v, 0p4v, 0p2v
1117 * DFP_3.0 rp4p7k vref_dfp_3_0: 2p6v, 0p8v, 0p2v
1118 */
1119
1120 switch (type_c_cfg->cc_dfp_mode) {
1121 case CC_MODE_DFP_USB:
1122 type_c->dfp_mode_rp_en = dfp_mode(CC_MODE_DFP_USB) | EN_RP36K;
1123 break;
1124 case CC_MODE_DFP_1_5:
1125 type_c->dfp_mode_rp_en = dfp_mode(CC_MODE_DFP_1_5) | EN_RP12K;
1126 break;
1127 case CC_MODE_DFP_3_0:
1128 type_c->dfp_mode_rp_en = dfp_mode(CC_MODE_DFP_3_0) | EN_RP4P7K;
1129 break;
1130 default:
1131 dev_err(type_c->dev, "%s: unknown cc_dfp_mode %d\n",
1132 __func__, type_c_cfg->cc_dfp_mode);
1133 }
1134
1135 type_c->ufp_mode_rd_en = EN_RD;
1136
1137 cc_param = &type_c_cfg->cc1_param;
1138 type_c->cc1_code = rp4pk_code(cc_param->rp_4p7k_code) |
1139 rp36k_code(cc_param->rp_36k_code) |
1140 rp12k_code(cc_param->rp_12k_code) |
1141 rd_code(cc_param->rd_code);
1142
1143 if (type_c_cfg->parameter_ver == PARAMETER_V0)
1144 type_c->cc1_vref = V0_vref_2p6v(cc_param->vref_2p6v) |
1145 V0_vref_1p23v(cc_param->vref_1p23v) |
1146 V0_vref_0p8v(cc_param->vref_0p8v) |
1147 V0_vref_0p66v(cc_param->vref_0p66v) |
1148 V0_vref_0p4v(cc_param->vref_0p4v) |
1149 V0_vref_0p2v(cc_param->vref_0p2v) |
1150 V0_vref_1_1p6v(cc_param->vref_1_1p6v) |
1151 V0_vref_0_1p6v(cc_param->vref_0_1p6v);
1152 else if (type_c_cfg->parameter_ver == PARAMETER_V1)
1153 type_c->cc1_vref = V1_vref_2p6v(cc_param->vref_2p6v) |
1154 V1_vref_1p23v(cc_param->vref_1p23v) |
1155 V1_vref_0p8v(cc_param->vref_0p8v) |
1156 V1_vref_0p66v(cc_param->vref_0p66v) |
1157 V1_vref_0p4v(cc_param->vref_0p4v) |
1158 V1_vref_0p2v(cc_param->vref_0p2v) |
1159 V1_vref_1_1p6v(cc_param->vref_1_1p6v) |
1160 V1_vref_0_1p6v(cc_param->vref_0_1p6v);
1161 else
1162 dev_err(type_c->dev, "%s: unknown parameter_ver %d\n",
1163 __func__, type_c_cfg->parameter_ver);
1164
1165 cc_param = &type_c_cfg->cc2_param;
1166 type_c->cc2_code = rp4pk_code(cc_param->rp_4p7k_code)
1167 | rp36k_code(cc_param->rp_36k_code)
1168 | rp12k_code(cc_param->rp_12k_code)
1169 | rd_code(cc_param->rd_code);
1170
1171 if (type_c_cfg->parameter_ver == PARAMETER_V0)
1172 type_c->cc2_vref = V0_vref_2p6v(cc_param->vref_2p6v) |
1173 V0_vref_1p23v(cc_param->vref_1p23v) |
1174 V0_vref_0p8v(cc_param->vref_0p8v) |
1175 V0_vref_0p66v(cc_param->vref_0p66v) |
1176 V0_vref_0p4v(cc_param->vref_0p4v) |
1177 V0_vref_0p2v(cc_param->vref_0p2v) |
1178 V0_vref_1_1p6v(cc_param->vref_1_1p6v) |
1179 V0_vref_0_1p6v(cc_param->vref_0_1p6v);
1180 else if (type_c_cfg->parameter_ver == PARAMETER_V1)
1181 type_c->cc2_vref = V1_vref_2p6v(cc_param->vref_2p6v) |
1182 V1_vref_1p23v(cc_param->vref_1p23v) |
1183 V1_vref_0p8v(cc_param->vref_0p8v) |
1184 V1_vref_0p66v(cc_param->vref_0p66v) |
1185 V1_vref_0p4v(cc_param->vref_0p4v) |
1186 V1_vref_0p2v(cc_param->vref_0p2v) |
1187 V1_vref_1_1p6v(cc_param->vref_1_1p6v) |
1188 V1_vref_0_1p6v(cc_param->vref_0_1p6v);
1189 else
1190 dev_err(type_c->dev, "%s: unknown parameter_ver %d\n",
1191 __func__, type_c_cfg->parameter_ver);
1192
1193 type_c->debounce = (type_c_cfg->debounce_val << 1) | DEBOUNCE_EN;
1194
1195 return 0;
1196}
1197
1198static int extcon_rtk_type_c_init(struct type_c_data *type_c)
1199{
1200 struct device *dev = type_c->dev;
1201 unsigned long flags;
1202 void __iomem *reg;
1203 int val;
1204
1205 spin_lock_irqsave(&type_c->lock, flags);
1206
1207 /* set parameter */
1208 reg = type_c->reg_base + USB_TYPEC_CTRL_CC1_0;
1209 val = readl(addr: reg);
1210 val = (~CC_CODE_MASK & val) | (type_c->cc1_code & CC_CODE_MASK);
1211 writel(val, addr: reg);
1212
1213 reg = type_c->reg_base + USB_TYPEC_CTRL_CC2_0;
1214 val = readl(addr: reg);
1215 val = (~CC_CODE_MASK & val) | (type_c->cc2_code & CC_CODE_MASK);
1216
1217 reg = type_c->reg_base + USB_TYPEC_CTRL_CC1_1;
1218 writel(val: type_c->cc1_vref, addr: reg);
1219
1220 reg = type_c->reg_base + USB_TYPEC_CTRL_CC2_1;
1221 writel(val: type_c->cc2_vref, addr: reg);
1222
1223 reg = type_c->reg_base + USB_TYPEC_CTRL;
1224 val = readl(addr: reg);
1225 val = (~DEBOUNCE_TIME_MASK & val) | (type_c->debounce & DEBOUNCE_TIME_MASK);
1226
1227 dev_info(dev, "First check USB_DR_MODE_PERIPHERAL");
1228 type_c->cc_mode = IN_DEVICE_MODE;
1229 type_c->is_attach = IN_DETACH;
1230 type_c->connect_change = CONNECT_NO_CHANGE;
1231
1232 detect_host(type_c);
1233
1234 spin_unlock_irqrestore(lock: &type_c->lock, flags);
1235
1236 schedule_delayed_work(dwork: &type_c->delayed_work, delay: msecs_to_jiffies(m: 0));
1237
1238 if (!type_c->port) {
1239 struct typec_capability typec_cap = { };
1240 struct fwnode_handle *fwnode;
1241 const char *buf;
1242 int ret;
1243
1244 typec_cap.revision = USB_TYPEC_REV_1_0;
1245 typec_cap.prefer_role = TYPEC_NO_PREFERRED_ROLE;
1246 typec_cap.driver_data = type_c;
1247 typec_cap.ops = &type_c_port_ops;
1248
1249 fwnode = device_get_named_child_node(dev, childname: "connector");
1250 if (!fwnode)
1251 return -EINVAL;
1252
1253 ret = fwnode_property_read_string(fwnode, propname: "power-role", val: &buf);
1254 if (ret) {
1255 dev_err(dev, "power-role not found: %d\n", ret);
1256 return ret;
1257 }
1258
1259 ret = typec_find_port_power_role(name: buf);
1260 if (ret < 0)
1261 return ret;
1262 typec_cap.type = ret;
1263
1264 ret = fwnode_property_read_string(fwnode, propname: "data-role", val: &buf);
1265 if (ret) {
1266 dev_err(dev, "data-role not found: %d\n", ret);
1267 return ret;
1268 }
1269
1270 ret = typec_find_port_data_role(name: buf);
1271 if (ret < 0)
1272 return ret;
1273 typec_cap.data = ret;
1274
1275 type_c->port = typec_register_port(parent: type_c->dev, cap: &typec_cap);
1276 if (IS_ERR(ptr: type_c->port))
1277 return PTR_ERR(ptr: type_c->port);
1278 }
1279
1280 return 0;
1281}
1282
1283static int extcon_rtk_type_c_edev_register(struct type_c_data *type_c)
1284{
1285 struct device *dev = type_c->dev;
1286 int ret = 0;
1287
1288 type_c->edev = devm_extcon_dev_allocate(dev, cable: usb_type_c_cable);
1289 if (IS_ERR(ptr: type_c->edev)) {
1290 dev_err(dev, "failed to allocate extcon device\n");
1291 return -ENOMEM;
1292 }
1293
1294 ret = devm_extcon_dev_register(dev, edev: type_c->edev);
1295 if (ret < 0) {
1296 dev_err(dev, "failed to register extcon device\n");
1297 return ret;
1298 }
1299
1300 extcon_set_property_capability(edev: type_c->edev, EXTCON_USB,
1301 EXTCON_PROP_USB_VBUS);
1302 extcon_set_property_capability(edev: type_c->edev, EXTCON_USB,
1303 EXTCON_PROP_USB_TYPEC_POLARITY);
1304 extcon_set_property_capability(edev: type_c->edev, EXTCON_USB,
1305 EXTCON_PROP_USB_SS);
1306
1307 extcon_set_property_capability(edev: type_c->edev, EXTCON_USB_HOST,
1308 EXTCON_PROP_USB_VBUS);
1309 extcon_set_property_capability(edev: type_c->edev, EXTCON_USB_HOST,
1310 EXTCON_PROP_USB_TYPEC_POLARITY);
1311 extcon_set_property_capability(edev: type_c->edev, EXTCON_USB_HOST,
1312 EXTCON_PROP_USB_SS);
1313
1314 return ret;
1315}
1316
1317static int extcon_rtk_type_c_probe(struct platform_device *pdev)
1318{
1319 struct device *dev = &pdev->dev;
1320 struct type_c_data *type_c;
1321 const struct type_c_cfg *type_c_cfg;
1322 int ret = 0;
1323
1324 type_c = devm_kzalloc(dev, size: sizeof(*type_c), GFP_KERNEL);
1325 if (!type_c)
1326 return -ENOMEM;
1327
1328 type_c->reg_base = devm_platform_ioremap_resource(pdev, index: 0);
1329 if (IS_ERR(ptr: type_c->reg_base))
1330 return PTR_ERR(ptr: type_c->reg_base);
1331
1332 type_c->dev = dev;
1333
1334 type_c->irq = irq_of_parse_and_map(node: pdev->dev.of_node, index: 0);
1335 if (type_c->irq <= 0) {
1336 dev_err(&pdev->dev, "Type C driver with no IRQ. Check %s setup!\n",
1337 dev_name(&pdev->dev));
1338 ret = -ENODEV;
1339 goto err;
1340 }
1341
1342 ret = devm_request_irq(dev, irq: type_c->irq, handler: type_c_detect_irq,
1343 IRQF_SHARED, devname: "type_c_detect", dev_id: type_c);
1344
1345 spin_lock_init(&type_c->lock);
1346
1347 type_c->rd_ctrl_gpio_desc = NULL;
1348 if (soc_device_match(matches: rtk_soc_kylin)) {
1349 struct gpio_desc *gpio;
1350
1351 gpio = fwnode_gpiod_get_index(of_fwnode_handle(dev->of_node),
1352 con_id: "realtek,rd-ctrl-gpios",
1353 index: 0, flags: GPIOD_OUT_HIGH, label: "rd-ctrl-gpio");
1354 if (IS_ERR(ptr: gpio)) {
1355 dev_err(dev, "Error rd_ctrl-gpios no found (err=%d)\n",
1356 (int)PTR_ERR(gpio));
1357 } else {
1358 type_c->rd_ctrl_gpio_desc = gpio;
1359 dev_dbg(dev, "%s get rd-ctrl-gpios (id=%d) OK\n",
1360 __func__, desc_to_gpio(gpio));
1361 }
1362 }
1363
1364 type_c_cfg = of_device_get_match_data(dev);
1365 if (!type_c_cfg) {
1366 dev_err(dev, "type_c config are not assigned!\n");
1367 ret = -EINVAL;
1368 goto err;
1369 }
1370
1371 type_c->type_c_cfg = devm_kzalloc(dev, size: sizeof(*type_c_cfg), GFP_KERNEL);
1372 if (!type_c->type_c_cfg)
1373 return -ENOMEM;
1374
1375 memcpy(type_c->type_c_cfg, type_c_cfg, sizeof(*type_c_cfg));
1376
1377 if (setup_type_c_parameter(type_c)) {
1378 dev_err(dev, "ERROR: %s to setup type c parameter!!", __func__);
1379 ret = -EINVAL;
1380 goto err;
1381 }
1382
1383 INIT_DELAYED_WORK(&type_c->delayed_work, host_device_switch);
1384
1385 ret = extcon_rtk_type_c_init(type_c);
1386 if (ret) {
1387 dev_err(dev, "%s failed to init type_c\n", __func__);
1388 goto err;
1389 }
1390
1391 platform_set_drvdata(pdev, data: type_c);
1392
1393 ret = extcon_rtk_type_c_edev_register(type_c);
1394
1395 create_debug_files(type_c);
1396
1397 return 0;
1398
1399err:
1400 dev_err(&pdev->dev, "%s: Probe fail, %d\n", __func__, ret);
1401
1402 return ret;
1403}
1404
1405static void extcon_rtk_type_c_remove(struct platform_device *pdev)
1406{
1407 struct device *dev = &pdev->dev;
1408 struct type_c_data *type_c = dev_get_drvdata(dev);
1409 u32 default_ctrl;
1410 unsigned long flags;
1411
1412 remove_debug_files(type_c);
1413
1414 if (type_c->port) {
1415 typec_unregister_port(port: type_c->port);
1416 type_c->port = NULL;
1417 }
1418
1419 cancel_delayed_work_sync(dwork: &type_c->delayed_work);
1420 flush_delayed_work(dwork: &type_c->delayed_work);
1421 WARN_ON_ONCE(delayed_work_pending(&type_c->delayed_work));
1422
1423 spin_lock_irqsave(&type_c->lock, flags);
1424 /* disable interrupt */
1425 default_ctrl = readl(addr: type_c->reg_base + USB_TYPEC_CTRL) &
1426 DEBOUNCE_TIME_MASK;
1427 writel(val: default_ctrl, addr: type_c->reg_base + USB_TYPEC_CTRL);
1428
1429 /* disable cc detect, rp, rd */
1430 writel(PLR_EN, addr: type_c->reg_base + USB_TYPEC_CTRL_CC1_0);
1431 writel(val: 0, addr: type_c->reg_base + USB_TYPEC_CTRL_CC2_0);
1432
1433 spin_unlock_irqrestore(lock: &type_c->lock, flags);
1434
1435 if (type_c->rd_ctrl_gpio_desc)
1436 gpiod_put(desc: type_c->rd_ctrl_gpio_desc);
1437 type_c->rd_ctrl_gpio_desc = NULL;
1438
1439 free_irq(type_c->irq, type_c);
1440}
1441
1442static const struct type_c_cfg rtd1295_type_c_cfg = {
1443 .parameter_ver = PARAMETER_V0,
1444 .cc_dfp_mode = CC_MODE_DFP_3_0,
1445 .cc1_param = { .rp_4p7k_code = 0xb,
1446 .rp_36k_code = 0x17,
1447 .rp_12k_code = 0x10,
1448 .rd_code = 0,
1449 .ra_code = 0,
1450 .vref_2p6v = 0x0,
1451 .vref_1p23v = 0x0,
1452 .vref_0p8v = 0x3,
1453 .vref_0p66v = 0x0,
1454 .vref_0p4v = 0x0,
1455 .vref_0p2v = 0x4,
1456 .vref_1_1p6v = 0,
1457 .vref_0_1p6v = 0 },
1458 .cc2_param = { .rp_4p7k_code = 0xc,
1459 .rp_36k_code = 0x17,
1460 .rp_12k_code = 0x12,
1461 .rd_code = 0,
1462 .ra_code = 0,
1463 .vref_2p6v = 0x2,
1464 .vref_1p23v = 0x0,
1465 .vref_0p8v = 0x3,
1466 .vref_0p66v = 0x0,
1467 .vref_0p4v = 0x0,
1468 .vref_0p2v = 0x5,
1469 .vref_1_1p6v = 0,
1470 .vref_0_1p6v = 0 },
1471 .debounce_val = 0x7f, /* 1b,1us 7f,4.7us */
1472 .use_defalut_parameter = false,
1473};
1474
1475static const struct type_c_cfg rtd1395_type_c_cfg = {
1476 .parameter_ver = PARAMETER_V0,
1477 .cc_dfp_mode = CC_MODE_DFP_3_0,
1478 .cc1_param = { .rp_4p7k_code = 0xc,
1479 .rp_36k_code = 0xb,
1480 .rp_12k_code = 0xe,
1481 .rd_code = 0x10,
1482 .ra_code = 0x0,
1483 .vref_2p6v = 0x0,
1484 .vref_1p23v = 0x1,
1485 .vref_0p8v = 0x0,
1486 .vref_0p66v = 0x0,
1487 .vref_0p4v = 0x3,
1488 .vref_0p2v = 0x0,
1489 .vref_1_1p6v = 0x7,
1490 .vref_0_1p6v = 0x7 },
1491 .cc2_param = { .rp_4p7k_code = 0xb,
1492 .rp_36k_code = 0x9,
1493 .rp_12k_code = 0xe,
1494 .rd_code = 0xf,
1495 .ra_code = 0x0,
1496 .vref_2p6v = 0x1,
1497 .vref_1p23v = 0x3,
1498 .vref_0p8v = 0x3,
1499 .vref_0p66v = 0x2,
1500 .vref_0p4v = 0x3,
1501 .vref_0p2v = 0x2,
1502 .vref_1_1p6v = 0x7,
1503 .vref_0_1p6v = 0x7 },
1504 .debounce_val = 0x7f, /* 1b,1us 7f,4.7us */
1505 .use_defalut_parameter = false,
1506};
1507
1508static const struct type_c_cfg rtd1619_type_c_cfg = {
1509 .parameter_ver = PARAMETER_V0,
1510 .cc_dfp_mode = CC_MODE_DFP_3_0,
1511 .cc1_param = { .rp_4p7k_code = 0xc,
1512 .rp_36k_code = 0xf,
1513 .rp_12k_code = 0xe,
1514 .rd_code = 0x11,
1515 .ra_code = 0x0,
1516 .vref_2p6v = 0x5,
1517 .vref_1p23v = 0x7,
1518 .vref_0p8v = 0xa,
1519 .vref_0p66v = 0xa,
1520 .vref_0p4v = 0x3,
1521 .vref_0p2v = 0x2,
1522 .vref_1_1p6v = 0x7,
1523 .vref_0_1p6v = 0x7 },
1524 .cc2_param = { .rp_4p7k_code = 0xc,
1525 .rp_36k_code = 0xf,
1526 .rp_12k_code = 0xe,
1527 .rd_code = 0xf,
1528 .ra_code = 0x0,
1529 .vref_2p6v = 0x5,
1530 .vref_1p23v = 0x8,
1531 .vref_0p8v = 0xa,
1532 .vref_0p66v = 0xa,
1533 .vref_0p4v = 0x3,
1534 .vref_0p2v = 0x2,
1535 .vref_1_1p6v = 0x7,
1536 .vref_0_1p6v = 0x7 },
1537 .debounce_val = 0x7f, /* 1b,1us 7f,4.7us */
1538 .use_defalut_parameter = false,
1539};
1540
1541static const struct type_c_cfg rtd1319_type_c_cfg = {
1542 .parameter_ver = PARAMETER_V0,
1543 .cc_dfp_mode = CC_MODE_DFP_1_5,
1544 .cc1_param = { .rp_4p7k_code = 0x9,
1545 .rp_36k_code = 0xe,
1546 .rp_12k_code = 0x9,
1547 .rd_code = 0x9,
1548 .ra_code = 0x7,
1549 .vref_2p6v = 0x3,
1550 .vref_1p23v = 0x7,
1551 .vref_0p8v = 0x7,
1552 .vref_0p66v = 0x6,
1553 .vref_0p4v = 0x2,
1554 .vref_0p2v = 0x3,
1555 .vref_1_1p6v = 0x4,
1556 .vref_0_1p6v = 0x7 },
1557 .cc2_param = { .rp_4p7k_code = 0x8,
1558 .rp_36k_code = 0xe,
1559 .rp_12k_code = 0x9,
1560 .rd_code = 0x9,
1561 .ra_code = 0x7,
1562 .vref_2p6v = 0x3,
1563 .vref_1p23v = 0x7,
1564 .vref_0p8v = 0x7,
1565 .vref_0p66v = 0x6,
1566 .vref_0p4v = 0x3,
1567 .vref_0p2v = 0x3,
1568 .vref_1_1p6v = 0x6,
1569 .vref_0_1p6v = 0x7 },
1570 .debounce_val = 0x7f, /* 1b,1us 7f,4.7us */
1571 .use_defalut_parameter = false,
1572};
1573
1574static const struct type_c_cfg rtd1312c_type_c_cfg = {
1575 .parameter_ver = PARAMETER_V0,
1576 .cc_dfp_mode = CC_MODE_DFP_1_5,
1577 .cc1_param = { .rp_4p7k_code = 0xe,
1578 .rp_36k_code = 0xc,
1579 .rp_12k_code = 0xc,
1580 .rd_code = 0xa,
1581 .ra_code = 0x3,
1582 .vref_2p6v = 0xa,
1583 .vref_1p23v = 0x7,
1584 .vref_0p8v = 0x7,
1585 .vref_0p66v = 0x7,
1586 .vref_0p4v = 0x4,
1587 .vref_0p2v = 0x4,
1588 .vref_1_1p6v = 0x7,
1589 .vref_0_1p6v = 0x7 },
1590 .cc2_param = { .rp_4p7k_code = 0xe,
1591 .rp_36k_code = 0xc,
1592 .rp_12k_code = 0xc,
1593 .rd_code = 0xa,
1594 .ra_code = 0x3,
1595 .vref_2p6v = 0xa,
1596 .vref_1p23v = 0x7,
1597 .vref_0p8v = 0x7,
1598 .vref_0p66v = 0x7,
1599 .vref_0p4v = 0x4,
1600 .vref_0p2v = 0x4,
1601 .vref_1_1p6v = 0x7,
1602 .vref_0_1p6v = 0x7 },
1603 .debounce_val = 0x7f, /* 1b,1us 7f,4.7us */
1604 .use_defalut_parameter = false,
1605};
1606
1607static const struct type_c_cfg rtd1619b_type_c_cfg = {
1608 .parameter_ver = PARAMETER_V1,
1609 .cc_dfp_mode = CC_MODE_DFP_1_5,
1610 .cc1_param = { .rp_4p7k_code = 0xf,
1611 .rp_36k_code = 0xf,
1612 .rp_12k_code = 0xf,
1613 .rd_code = 0xf,
1614 .ra_code = 0x7,
1615 .vref_2p6v = 0x9,
1616 .vref_1p23v = 0x7,
1617 .vref_0p8v = 0x9,
1618 .vref_0p66v = 0x8,
1619 .vref_0p4v = 0x7,
1620 .vref_0p2v = 0x9,
1621 .vref_1_1p6v = 0x7,
1622 .vref_0_1p6v = 0x7 },
1623 .cc2_param = { .rp_4p7k_code = 0xf,
1624 .rp_36k_code = 0xf,
1625 .rp_12k_code = 0xf,
1626 .rd_code = 0xf,
1627 .ra_code = 0x7,
1628 .vref_1p23v = 0x7,
1629 .vref_0p8v = 0x9,
1630 .vref_0p66v = 0x8,
1631 .vref_0p4v = 0x7,
1632 .vref_0p2v = 0x8,
1633 .vref_1_1p6v = 0x7,
1634 .vref_0_1p6v = 0x7 },
1635 .debounce_val = 0x7f, /* 1b,1us 7f,4.7us */
1636 .use_defalut_parameter = false,
1637};
1638
1639static const struct type_c_cfg rtd1319d_type_c_cfg = {
1640 .parameter_ver = PARAMETER_V1,
1641 .cc_dfp_mode = CC_MODE_DFP_1_5,
1642 .cc1_param = { .rp_4p7k_code = 0xe,
1643 .rp_36k_code = 0x3,
1644 .rp_12k_code = 0xe,
1645 .rd_code = 0xf,
1646 .ra_code = 0x6,
1647 .vref_2p6v = 0x7,
1648 .vref_1p23v = 0x7,
1649 .vref_0p8v = 0x8,
1650 .vref_0p66v = 0x7,
1651 .vref_0p4v = 0x7,
1652 .vref_0p2v = 0x7,
1653 .vref_1_1p6v = 0x7,
1654 .vref_0_1p6v = 0x7 },
1655 .cc2_param = { .rp_4p7k_code = 0xe,
1656 .rp_36k_code = 0x3,
1657 .rp_12k_code = 0xe,
1658 .rd_code = 0xf,
1659 .ra_code = 0x6,
1660 .vref_2p6v = 0x7,
1661 .vref_1p23v = 0x7,
1662 .vref_0p8v = 0x8,
1663 .vref_0p66v = 0x7,
1664 .vref_0p4v = 0x7,
1665 .vref_0p2v = 0x8,
1666 .vref_1_1p6v = 0x7,
1667 .vref_0_1p6v = 0x7 },
1668 .debounce_val = 0x7f, /* 1b,1us 7f,4.7us */
1669 .use_defalut_parameter = false,
1670};
1671
1672static const struct type_c_cfg rtd1315e_type_c_cfg = {
1673 .parameter_ver = PARAMETER_V1,
1674 .cc_dfp_mode = CC_MODE_DFP_1_5,
1675 .cc1_param = { .rp_4p7k_code = 0xe,
1676 .rp_36k_code = 0x3,
1677 .rp_12k_code = 0xe,
1678 .rd_code = 0xf,
1679 .ra_code = 0x6,
1680 .vref_2p6v = 0x7,
1681 .vref_1p23v = 0x7,
1682 .vref_0p8v = 0x8,
1683 .vref_0p66v = 0x7,
1684 .vref_0p4v = 0x7,
1685 .vref_0p2v = 0x7,
1686 .vref_1_1p6v = 0x7,
1687 .vref_0_1p6v = 0x7 },
1688 .cc2_param = { .rp_4p7k_code = 0xe,
1689 .rp_36k_code = 0x3,
1690 .rp_12k_code = 0xe,
1691 .rd_code = 0xf,
1692 .ra_code = 0x6,
1693 .vref_2p6v = 0x7,
1694 .vref_1p23v = 0x7,
1695 .vref_0p8v = 0x8,
1696 .vref_0p66v = 0x7,
1697 .vref_0p4v = 0x7,
1698 .vref_0p2v = 0x8,
1699 .vref_1_1p6v = 0x7,
1700 .vref_0_1p6v = 0x7 },
1701 .debounce_val = 0x7f, /* 1b,1us 7f,4.7us */
1702 .use_defalut_parameter = false,
1703};
1704
1705static const struct of_device_id extcon_rtk_type_c_match[] = {
1706 { .compatible = "realtek,rtd1295-type-c", .data = &rtd1295_type_c_cfg },
1707 { .compatible = "realtek,rtd1312c-type-c", .data = &rtd1312c_type_c_cfg },
1708 { .compatible = "realtek,rtd1315e-type-c", .data = &rtd1315e_type_c_cfg },
1709 { .compatible = "realtek,rtd1319-type-c", .data = &rtd1319_type_c_cfg },
1710 { .compatible = "realtek,rtd1319d-type-c", .data = &rtd1319d_type_c_cfg },
1711 { .compatible = "realtek,rtd1395-type-c", .data = &rtd1395_type_c_cfg },
1712 { .compatible = "realtek,rtd1619-type-c", .data = &rtd1619_type_c_cfg },
1713 { .compatible = "realtek,rtd1619b-type-c", .data = &rtd1619b_type_c_cfg },
1714 {},
1715};
1716MODULE_DEVICE_TABLE(of, extcon_rtk_type_c_match);
1717
1718#ifdef CONFIG_PM_SLEEP
1719static int extcon_rtk_type_c_prepare(struct device *dev)
1720{
1721 struct type_c_data *type_c = dev_get_drvdata(dev);
1722 u32 default_ctrl;
1723 unsigned long flags;
1724
1725 cancel_delayed_work_sync(dwork: &type_c->delayed_work);
1726 flush_delayed_work(dwork: &type_c->delayed_work);
1727 WARN_ON_ONCE(delayed_work_pending(&type_c->delayed_work));
1728
1729 spin_lock_irqsave(&type_c->lock, flags);
1730 /* disable interrupt */
1731 default_ctrl = readl(addr: type_c->reg_base + USB_TYPEC_CTRL) &
1732 DEBOUNCE_TIME_MASK;
1733 writel(val: default_ctrl, addr: type_c->reg_base + USB_TYPEC_CTRL);
1734
1735 /* disable cc detect, rp, rd */
1736 writel(PLR_EN, addr: type_c->reg_base + USB_TYPEC_CTRL_CC1_0);
1737 writel(val: 0, addr: type_c->reg_base + USB_TYPEC_CTRL_CC2_0);
1738
1739 spin_unlock_irqrestore(lock: &type_c->lock, flags);
1740
1741 return 0;
1742}
1743
1744static void extcon_rtk_type_c_complete(struct device *dev)
1745{
1746 /* nothing */
1747}
1748
1749static int extcon_rtk_type_c_suspend(struct device *dev)
1750{
1751 /* nothing */
1752
1753 return 0;
1754}
1755
1756static int extcon_rtk_type_c_resume(struct device *dev)
1757{
1758 struct type_c_data *type_c = dev_get_drvdata(dev);
1759 int ret;
1760
1761 ret = extcon_rtk_type_c_init(type_c);
1762 if (ret) {
1763 dev_err(dev, "%s failed to init type_c\n", __func__);
1764 return ret;
1765 }
1766
1767 return 0;
1768}
1769
1770static const struct dev_pm_ops extcon_rtk_type_c_pm_ops = {
1771 SET_LATE_SYSTEM_SLEEP_PM_OPS(extcon_rtk_type_c_suspend, extcon_rtk_type_c_resume)
1772 .prepare = extcon_rtk_type_c_prepare,
1773 .complete = extcon_rtk_type_c_complete,
1774};
1775
1776#define DEV_PM_OPS (&extcon_rtk_type_c_pm_ops)
1777#else
1778#define DEV_PM_OPS NULL
1779#endif /* CONFIG_PM_SLEEP */
1780
1781static struct platform_driver extcon_rtk_type_c_driver = {
1782 .probe = extcon_rtk_type_c_probe,
1783 .remove = extcon_rtk_type_c_remove,
1784 .driver = {
1785 .name = "extcon-rtk-type_c",
1786 .of_match_table = extcon_rtk_type_c_match,
1787 .pm = DEV_PM_OPS,
1788 },
1789};
1790
1791module_platform_driver(extcon_rtk_type_c_driver);
1792
1793MODULE_DESCRIPTION("Realtek Extcon Type C driver");
1794MODULE_AUTHOR("Stanley Chang <stanley_chang@realtek.com>");
1795MODULE_LICENSE("GPL");
1796

source code of linux/drivers/extcon/extcon-rtk-type-c.c