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