drivers/extcon/extcon-rtk-type-c.c

   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
  30 struct 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
  46 struct 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
  56 struct 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  */
 154 enum 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
 224 static const unsigned int usb_type_c_cable[] = {
 225         EXTCON_USB,
 226         EXTCON_USB_HOST,
 227         EXTCON_NONE,
 228 };
 229
 230 enum usb_data_roles {
 231         DR_NONE,
 232         DR_HOST,
 233         DR_DEVICE,
 234 };
 235
 236 static const struct soc_device_attribute rtk_soc_kylin[] = {
 237         { .family = "Realtek Kylin", },
 238         { /* empty */ }
 239 };
 240
 241 static 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
 278 static 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
 291 static 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 */
 367 static 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
 380 static 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 */
 394 static 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
 438 static 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
 443 static 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
 448 static 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
 461 static 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
 598 static 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
 660 static 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
 700 static 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
 721 static const struct typec_operations type_c_port_ops = {
 722         .dr_set = type_c_port_dr_set,
 723 };
 724
 725 #ifdef CONFIG_DEBUG_FS
 726 static 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
 792 static 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
 797 static 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
 804 static 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
 834 static 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
 839 static 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
 846 static 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
 857 static inline void remove_debug_files(struct type_c_data *type_c)
 858 {
 859         debugfs_remove_recursive(type_c->debug_dir);
 860 }
 861 #else
 862 static inline void create_debug_files(struct type_c_data *type_c) { }
 863 static inline void remove_debug_files(struct type_c_data *type_c) { }
 864 #endif /* CONFIG_DEBUG_FS */
 865
 866 /* Init and probe */
 867
 868 static inline s8 get_value(s8 value)
 869 {
 870         return (((s8)value & 0x8) ? (-(s8)(0x7 & value)) : ((s8)(value)));
 871 }
 872
 873 static 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
 957 static 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
1059 static 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
1088 static 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
1199 static 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
1284 static 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
1318 static 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
1398 err:
1399         dev_err(&pdev->dev, "%s: Probe fail, %d\n", __func__, ret);
1400
1401         return ret;
1402 }
1403
1404 static 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
1441 static 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
1474 static 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
1507 static 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
1540 static 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
1573 static 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
1606 static 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
1638 static 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
1671 static 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
1704 static 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 };
1715 MODULE_DEVICE_TABLE(of, extcon_rtk_type_c_match);
1716
1717 #ifdef CONFIG_PM_SLEEP
1718 static 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
1743 static void extcon_rtk_type_c_complete(struct device *dev)
1744 {
1745         /* nothing */
1746 }
1747
1748 static int extcon_rtk_type_c_suspend(struct device *dev)
1749 {
1750         /* nothing */
1751
1752         return 0;
1753 }
1754
1755 static 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
1769 static 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
1780 static 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
1790 module_platform_driver(extcon_rtk_type_c_driver);
1791
1792 MODULE_DESCRIPTION("Realtek Extcon Type C driver");
1793 MODULE_AUTHOR("Stanley Chang <stanley_chang@realtek.com>");
1794 MODULE_LICENSE("GPL");