kernel/drivers/phy/phy-ti-pipe3.c

   1 /*
   2  * phy-ti-pipe3 - PIPE3 PHY driver.
   3  *
   4  * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * Author: Kishon Vijay Abraham I <kishon@ti.com>
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  */
  18
  19 #include <linux/module.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/slab.h>
  22 #include <linux/phy/phy.h>
  23 #include <linux/of.h>
  24 #include <linux/clk.h>
  25 #include <linux/err.h>
  26 #include <linux/io.h>
  27 #include <linux/pm_runtime.h>
  28 #include <linux/delay.h>
  29 #include <linux/phy/omap_control_phy.h>
  30 #include <linux/of_platform.h>
  31 #include <linux/spinlock.h>
  32
  33 #define PLL_STATUS              0x00000004
  34 #define PLL_GO                  0x00000008
  35 #define PLL_CONFIGURATION1      0x0000000C
  36 #define PLL_CONFIGURATION2      0x00000010
  37 #define PLL_CONFIGURATION3      0x00000014
  38 #define PLL_CONFIGURATION4      0x00000020
  39
  40 #define PLL_REGM_MASK           0x001FFE00
  41 #define PLL_REGM_SHIFT          0x9
  42 #define PLL_REGM_F_MASK         0x0003FFFF
  43 #define PLL_REGM_F_SHIFT        0x0
  44 #define PLL_REGN_MASK           0x000001FE
  45 #define PLL_REGN_SHIFT          0x1
  46 #define PLL_SELFREQDCO_MASK     0x0000000E
  47 #define PLL_SELFREQDCO_SHIFT    0x1
  48 #define PLL_SD_MASK             0x0003FC00
  49 #define PLL_SD_SHIFT            10
  50 #define SET_PLL_GO              0x1
  51 #define PLL_LDOPWDN             BIT(15)
  52 #define PLL_TICOPWDN            BIT(16)
  53 #define PLL_LOCK                0x2
  54 #define PLL_IDLE                0x1
  55
  56 /*
  57  * This is an Empirical value that works, need to confirm the actual
  58  * value required for the PIPE3PHY_PLL_CONFIGURATION2.PLL_IDLE status
  59  * to be correctly reflected in the PIPE3PHY_PLL_STATUS register.
  60  */
  61 #define PLL_IDLE_TIME   100     /* in milliseconds */
  62 #define PLL_LOCK_TIME   100     /* in milliseconds */
  63
  64 struct pipe3_dpll_params {
  65         u16     m;
  66         u8      n;
  67         u8      freq:3;
  68         u8      sd;
  69         u32     mf;
  70 };
  71
  72 struct pipe3_dpll_map {
  73         unsigned long rate;
  74         struct pipe3_dpll_params params;
  75 };
  76
  77 struct ti_pipe3 {
  78         void __iomem            *pll_ctrl_base;
  79         struct device           *dev;
  80         struct device           *control_dev;
  81         struct clk              *wkupclk;
  82         struct clk              *sys_clk;
  83         struct clk              *refclk;
  84         struct clk              *div_clk;
  85         struct pipe3_dpll_map   *dpll_map;
  86         bool                    enabled;
  87         spinlock_t              lock;   /* serialize clock enable/disable */
  88         /* the below flag is needed specifically for SATA */
  89         bool                    refclk_enabled;
  90 };
  91
  92 static struct pipe3_dpll_map dpll_map_usb[] = {
  93         {12000000, {1250, 5, 4, 20, 0} },       /* 12 MHz */
  94         {16800000, {3125, 20, 4, 20, 0} },      /* 16.8 MHz */
  95         {19200000, {1172, 8, 4, 20, 65537} },   /* 19.2 MHz */
  96         {20000000, {1000, 7, 4, 10, 0} },       /* 20 MHz */
  97         {26000000, {1250, 12, 4, 20, 0} },      /* 26 MHz */
  98         {38400000, {3125, 47, 4, 20, 92843} },  /* 38.4 MHz */
  99         { },                                    /* Terminator */
 100 };
 101
 102 static struct pipe3_dpll_map dpll_map_sata[] = {
 103         {12000000, {1000, 7, 4, 6, 0} },        /* 12 MHz */
 104         {16800000, {714, 7, 4, 6, 0} },         /* 16.8 MHz */
 105         {19200000, {625, 7, 4, 6, 0} },         /* 19.2 MHz */
 106         {20000000, {600, 7, 4, 6, 0} },         /* 20 MHz */
 107         {26000000, {461, 7, 4, 6, 0} },         /* 26 MHz */
 108         {38400000, {312, 7, 4, 6, 0} },         /* 38.4 MHz */
 109         { },                                    /* Terminator */
 110 };
 111
 112 static inline u32 ti_pipe3_readl(void __iomem *addr, unsigned offset)
 113 {
 114         return __raw_readl(addr + offset);
 115 }
 116
 117 static inline void ti_pipe3_writel(void __iomem *addr, unsigned offset,
 118         u32 data)
 119 {
 120         __raw_writel(data, addr + offset);
 121 }
 122
 123 static struct pipe3_dpll_params *ti_pipe3_get_dpll_params(struct ti_pipe3 *phy)
 124 {
 125         unsigned long rate;
 126         struct pipe3_dpll_map *dpll_map = phy->dpll_map;
 127
 128         rate = clk_get_rate(phy->sys_clk);
 129
 130         for (; dpll_map->rate; dpll_map++) {
 131                 if (rate == dpll_map->rate)
 132                         return &dpll_map->params;
 133         }
 134
 135         dev_err(phy->dev, "No DPLL configuration for %lu Hz SYS CLK\n", rate);
 136
 137         return NULL;
 138 }
 139
 140 static int ti_pipe3_power_off(struct phy *x)
 141 {
 142         struct ti_pipe3 *phy = phy_get_drvdata(x);
 143
 144         omap_control_phy_power(phy->control_dev, 0);
 145
 146         return 0;
 147 }
 148
 149 static int ti_pipe3_power_on(struct phy *x)
 150 {
 151         struct ti_pipe3 *phy = phy_get_drvdata(x);
 152
 153         omap_control_phy_power(phy->control_dev, 1);
 154
 155         return 0;
 156 }
 157
 158 static int ti_pipe3_dpll_wait_lock(struct ti_pipe3 *phy)
 159 {
 160         u32             val;
 161         unsigned long   timeout;
 162
 163         timeout = jiffies + msecs_to_jiffies(PLL_LOCK_TIME);
 164         do {
 165                 cpu_relax();
 166                 val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_STATUS);
 167                 if (val & PLL_LOCK)
 168                         return 0;
 169         } while (!time_after(jiffies, timeout));
 170
 171         dev_err(phy->dev, "DPLL failed to lock\n");
 172         return -EBUSY;
 173 }
 174
 175 static int ti_pipe3_dpll_program(struct ti_pipe3 *phy)
 176 {
 177         u32                     val;
 178         struct pipe3_dpll_params *dpll_params;
 179
 180         dpll_params = ti_pipe3_get_dpll_params(phy);
 181         if (!dpll_params)
 182                 return -EINVAL;
 183
 184         val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION1);
 185         val &= ~PLL_REGN_MASK;
 186         val |= dpll_params->n << PLL_REGN_SHIFT;
 187         ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION1, val);
 188
 189         val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
 190         val &= ~PLL_SELFREQDCO_MASK;
 191         val |= dpll_params->freq << PLL_SELFREQDCO_SHIFT;
 192         ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val);
 193
 194         val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION1);
 195         val &= ~PLL_REGM_MASK;
 196         val |= dpll_params->m << PLL_REGM_SHIFT;
 197         ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION1, val);
 198
 199         val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION4);
 200         val &= ~PLL_REGM_F_MASK;
 201         val |= dpll_params->mf << PLL_REGM_F_SHIFT;
 202         ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION4, val);
 203
 204         val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION3);
 205         val &= ~PLL_SD_MASK;
 206         val |= dpll_params->sd << PLL_SD_SHIFT;
 207         ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION3, val);
 208
 209         ti_pipe3_writel(phy->pll_ctrl_base, PLL_GO, SET_PLL_GO);
 210
 211         return ti_pipe3_dpll_wait_lock(phy);
 212 }
 213
 214 static int ti_pipe3_init(struct phy *x)
 215 {
 216         struct ti_pipe3 *phy = phy_get_drvdata(x);
 217         u32 val;
 218         int ret = 0;
 219
 220         /*
 221          * Set pcie_pcs register to 0x96 for proper functioning of phy
 222          * as recommended in AM572x TRM SPRUHZ6, section 18.5.2.2, table
 223          * 18-1804.
 224          */
 225         if (of_device_is_compatible(phy->dev->of_node, "ti,phy-pipe3-pcie")) {
 226                 omap_control_pcie_pcs(phy->control_dev, 0x96);
 227                 return 0;
 228         }
 229
 230         /* Bring it out of IDLE if it is IDLE */
 231         val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
 232         if (val & PLL_IDLE) {
 233                 val &= ~PLL_IDLE;
 234                 ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val);
 235                 ret = ti_pipe3_dpll_wait_lock(phy);
 236         }
 237
 238         /* Program the DPLL only if not locked */
 239         val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_STATUS);
 240         if (!(val & PLL_LOCK))
 241                 if (ti_pipe3_dpll_program(phy))
 242                         return -EINVAL;
 243
 244         return ret;
 245 }
 246
 247 static int ti_pipe3_exit(struct phy *x)
 248 {
 249         struct ti_pipe3 *phy = phy_get_drvdata(x);
 250         u32 val;
 251         unsigned long timeout;
 252
 253         /* SATA DPLL can't be powered down due to Errata i783 and PCIe
 254          * does not have internal DPLL
 255          */
 256         if (of_device_is_compatible(phy->dev->of_node, "ti,phy-pipe3-sata") ||
 257             of_device_is_compatible(phy->dev->of_node, "ti,phy-pipe3-pcie"))
 258                 return 0;
 259
 260         /* Put DPLL in IDLE mode */
 261         val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
 262         val |= PLL_IDLE;
 263         ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val);
 264
 265         /* wait for LDO and Oscillator to power down */
 266         timeout = jiffies + msecs_to_jiffies(PLL_IDLE_TIME);
 267         do {
 268                 cpu_relax();
 269                 val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_STATUS);
 270                 if ((val & PLL_TICOPWDN) && (val & PLL_LDOPWDN))
 271                         break;
 272         } while (!time_after(jiffies, timeout));
 273
 274         if (!(val & PLL_TICOPWDN) || !(val & PLL_LDOPWDN)) {
 275                 dev_err(phy->dev, "Failed to power down: PLL_STATUS 0x%x\n",
 276                         val);
 277                 return -EBUSY;
 278         }
 279
 280         return 0;
 281 }
 282 static struct phy_ops ops = {
 283         .init           = ti_pipe3_init,
 284         .exit           = ti_pipe3_exit,
 285         .power_on       = ti_pipe3_power_on,
 286         .power_off      = ti_pipe3_power_off,
 287         .owner          = THIS_MODULE,
 288 };
 289
 290 static const struct of_device_id ti_pipe3_id_table[];
 291
 292 static int ti_pipe3_probe(struct platform_device *pdev)
 293 {
 294         struct ti_pipe3 *phy;
 295         struct phy *generic_phy;
 296         struct phy_provider *phy_provider;
 297         struct resource *res;
 298         struct device_node *node = pdev->dev.of_node;
 299         struct device_node *control_node;
 300         struct platform_device *control_pdev;
 301         const struct of_device_id *match;
 302         struct clk *clk;
 303
 304         phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL);
 305         if (!phy)
 306                 return -ENOMEM;
 307
 308         phy->dev                = &pdev->dev;
 309         spin_lock_init(&phy->lock);
 310
 311         if (!of_device_is_compatible(node, "ti,phy-pipe3-pcie")) {
 312                 match = of_match_device(ti_pipe3_id_table, &pdev->dev);
 313                 if (!match)
 314                         return -EINVAL;
 315
 316                 phy->dpll_map = (struct pipe3_dpll_map *)match->data;
 317                 if (!phy->dpll_map) {
 318                         dev_err(&pdev->dev, "no DPLL data\n");
 319                         return -EINVAL;
 320                 }
 321
 322                 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
 323                                                    "pll_ctrl");
 324                 phy->pll_ctrl_base = devm_ioremap_resource(&pdev->dev, res);
 325                 if (IS_ERR(phy->pll_ctrl_base))
 326                         return PTR_ERR(phy->pll_ctrl_base);
 327
 328                 phy->sys_clk = devm_clk_get(phy->dev, "sysclk");
 329                 if (IS_ERR(phy->sys_clk)) {
 330                         dev_err(&pdev->dev, "unable to get sysclk\n");
 331                         return -EINVAL;
 332                 }
 333         }
 334
 335         phy->refclk = devm_clk_get(phy->dev, "refclk");
 336         if (IS_ERR(phy->refclk)) {
 337                 dev_err(&pdev->dev, "unable to get refclk\n");
 338                 /* older DTBs have missing refclk in SATA PHY
 339                  * so don't bail out in case of SATA PHY.
 340                  */
 341                 if (!of_device_is_compatible(node, "ti,phy-pipe3-sata"))
 342                         return PTR_ERR(phy->refclk);
 343         }
 344
 345         if (!of_device_is_compatible(node, "ti,phy-pipe3-sata")) {
 346                 phy->wkupclk = devm_clk_get(phy->dev, "wkupclk");
 347                 if (IS_ERR(phy->wkupclk)) {
 348                         dev_err(&pdev->dev, "unable to get wkupclk\n");
 349                         return PTR_ERR(phy->wkupclk);
 350                 }
 351         } else {
 352                 phy->wkupclk = ERR_PTR(-ENODEV);
 353         }
 354
 355         if (of_device_is_compatible(node, "ti,phy-pipe3-pcie")) {
 356
 357                 clk = devm_clk_get(phy->dev, "dpll_ref");
 358                 if (IS_ERR(clk)) {
 359                         dev_err(&pdev->dev, "unable to get dpll ref clk\n");
 360                         return PTR_ERR(clk);
 361                 }
 362                 clk_set_rate(clk, 1500000000);
 363
 364                 clk = devm_clk_get(phy->dev, "dpll_ref_m2");
 365                 if (IS_ERR(clk)) {
 366                         dev_err(&pdev->dev, "unable to get dpll ref m2 clk\n");
 367                         return PTR_ERR(clk);
 368                 }
 369                 clk_set_rate(clk, 100000000);
 370
 371                 clk = devm_clk_get(phy->dev, "phy-div");
 372                 if (IS_ERR(clk)) {
 373                         dev_err(&pdev->dev, "unable to get phy-div clk\n");
 374                         return PTR_ERR(clk);
 375                 }
 376                 clk_set_rate(clk, 100000000);
 377
 378                 phy->div_clk = devm_clk_get(phy->dev, "div-clk");
 379                 if (IS_ERR(phy->div_clk)) {
 380                         dev_err(&pdev->dev, "unable to get div-clk\n");
 381                         return PTR_ERR(phy->div_clk);
 382                 }
 383         } else {
 384                 phy->div_clk = ERR_PTR(-ENODEV);
 385         }
 386
 387         control_node = of_parse_phandle(node, "ctrl-module", 0);
 388         if (!control_node) {
 389                 dev_err(&pdev->dev, "Failed to get control device phandle\n");
 390                 return -EINVAL;
 391         }
 392
 393         control_pdev = of_find_device_by_node(control_node);
 394         if (!control_pdev) {
 395                 dev_err(&pdev->dev, "Failed to get control device\n");
 396                 return -EINVAL;
 397         }
 398
 399         phy->control_dev = &control_pdev->dev;
 400
 401         omap_control_phy_power(phy->control_dev, 0);
 402
 403         platform_set_drvdata(pdev, phy);
 404         pm_runtime_enable(phy->dev);
 405
 406         generic_phy = devm_phy_create(phy->dev, NULL, &ops);
 407         if (IS_ERR(generic_phy))
 408                 return PTR_ERR(generic_phy);
 409
 410         phy_set_drvdata(generic_phy, phy);
 411         phy_provider = devm_of_phy_provider_register(phy->dev,
 412                         of_phy_simple_xlate);
 413         if (IS_ERR(phy_provider))
 414                 return PTR_ERR(phy_provider);
 415
 416         pm_runtime_get(&pdev->dev);
 417
 418         return 0;
 419 }
 420
 421 static int ti_pipe3_remove(struct platform_device *pdev)
 422 {
 423         if (!pm_runtime_suspended(&pdev->dev))
 424                 pm_runtime_put(&pdev->dev);
 425         pm_runtime_disable(&pdev->dev);
 426
 427         return 0;
 428 }
 429
 430 #ifdef CONFIG_PM
 431 static int ti_pipe3_enable_refclk(struct ti_pipe3 *phy)
 432 {
 433         if (!IS_ERR(phy->refclk) && !phy->refclk_enabled) {
 434                 int ret;
 435
 436                 ret = clk_prepare_enable(phy->refclk);
 437                 if (ret) {
 438                         dev_err(phy->dev, "Failed to enable refclk %d\n", ret);
 439                         return ret;
 440                 }
 441                 phy->refclk_enabled = true;
 442         }
 443
 444         return 0;
 445 }
 446
 447 static void ti_pipe3_disable_refclk(struct ti_pipe3 *phy)
 448 {
 449         if (!IS_ERR(phy->refclk))
 450                 clk_disable_unprepare(phy->refclk);
 451
 452         phy->refclk_enabled = false;
 453 }
 454
 455 static int ti_pipe3_enable_clocks(struct ti_pipe3 *phy)
 456 {
 457         int ret = 0;
 458         unsigned long flags;
 459
 460         spin_lock_irqsave(&phy->lock, flags);
 461         if (phy->enabled)
 462                 goto err1;
 463
 464         ret = ti_pipe3_enable_refclk(phy);
 465         if (ret)
 466                 goto err1;
 467
 468         if (!IS_ERR(phy->wkupclk)) {
 469                 ret = clk_prepare_enable(phy->wkupclk);
 470                 if (ret) {
 471                         dev_err(phy->dev, "Failed to enable wkupclk %d\n", ret);
 472                         goto err2;
 473                 }
 474         }
 475
 476         if (!IS_ERR(phy->div_clk)) {
 477                 ret = clk_prepare_enable(phy->div_clk);
 478                 if (ret) {
 479                         dev_err(phy->dev, "Failed to enable div_clk %d\n", ret);
 480                         goto err3;
 481                 }
 482         }
 483
 484         phy->enabled = true;
 485         spin_unlock_irqrestore(&phy->lock, flags);
 486         return 0;
 487
 488 err3:
 489         if (!IS_ERR(phy->wkupclk))
 490                 clk_disable_unprepare(phy->wkupclk);
 491
 492 err2:
 493         if (!IS_ERR(phy->refclk))
 494                 clk_disable_unprepare(phy->refclk);
 495
 496         ti_pipe3_disable_refclk(phy);
 497 err1:
 498         spin_unlock_irqrestore(&phy->lock, flags);
 499         return ret;
 500 }
 501
 502 static void ti_pipe3_disable_clocks(struct ti_pipe3 *phy)
 503 {
 504         unsigned long flags;
 505
 506         spin_lock_irqsave(&phy->lock, flags);
 507         if (!phy->enabled) {
 508                 spin_unlock_irqrestore(&phy->lock, flags);
 509                 return;
 510         }
 511
 512         if (!IS_ERR(phy->wkupclk))
 513                 clk_disable_unprepare(phy->wkupclk);
 514         /* Don't disable refclk for SATA PHY due to Errata i783 */
 515         if (!of_device_is_compatible(phy->dev->of_node, "ti,phy-pipe3-sata"))
 516                 ti_pipe3_disable_refclk(phy);
 517         if (!IS_ERR(phy->div_clk))
 518                 clk_disable_unprepare(phy->div_clk);
 519         phy->enabled = false;
 520         spin_unlock_irqrestore(&phy->lock, flags);
 521 }
 522
 523 static int ti_pipe3_runtime_suspend(struct device *dev)
 524 {
 525         struct ti_pipe3 *phy = dev_get_drvdata(dev);
 526
 527         ti_pipe3_disable_clocks(phy);
 528         return 0;
 529 }
 530
 531 static int ti_pipe3_runtime_resume(struct device *dev)
 532 {
 533         struct ti_pipe3 *phy = dev_get_drvdata(dev);
 534         int ret = 0;
 535
 536         ret = ti_pipe3_enable_clocks(phy);
 537         return ret;
 538 }
 539
 540 static int ti_pipe3_suspend(struct device *dev)
 541 {
 542         struct ti_pipe3 *phy = dev_get_drvdata(dev);
 543
 544         ti_pipe3_disable_clocks(phy);
 545         return 0;
 546 }
 547
 548 static int ti_pipe3_resume(struct device *dev)
 549 {
 550         struct ti_pipe3 *phy = dev_get_drvdata(dev);
 551         int ret;
 552
 553         ret = ti_pipe3_enable_clocks(phy);
 554         if (ret)
 555                 return ret;
 556
 557         pm_runtime_disable(dev);
 558         pm_runtime_set_active(dev);
 559         pm_runtime_enable(dev);
 560         return 0;
 561 }
 562 #endif
 563
 564 static const struct dev_pm_ops ti_pipe3_pm_ops = {
 565         SET_RUNTIME_PM_OPS(ti_pipe3_runtime_suspend,
 566                            ti_pipe3_runtime_resume, NULL)
 567         SET_SYSTEM_SLEEP_PM_OPS(ti_pipe3_suspend, ti_pipe3_resume)
 568 };
 569
 570 static const struct of_device_id ti_pipe3_id_table[] = {
 571         {
 572                 .compatible = "ti,phy-usb3",
 573                 .data = dpll_map_usb,
 574         },
 575         {
 576                 .compatible = "ti,omap-usb3",
 577                 .data = dpll_map_usb,
 578         },
 579         {
 580                 .compatible = "ti,phy-pipe3-sata",
 581                 .data = dpll_map_sata,
 582         },
 583         {
 584                 .compatible = "ti,phy-pipe3-pcie",
 585         },
 586         {}
 587 };
 588 MODULE_DEVICE_TABLE(of, ti_pipe3_id_table);
 589
 590 static struct platform_driver ti_pipe3_driver = {
 591         .probe          = ti_pipe3_probe,
 592         .remove         = ti_pipe3_remove,
 593         .driver         = {
 594                 .name   = "ti-pipe3",
 595                 .pm     = &ti_pipe3_pm_ops,
 596                 .of_match_table = ti_pipe3_id_table,
 597         },
 598 };
 599
 600 module_platform_driver(ti_pipe3_driver);
 601
 602 MODULE_ALIAS("platform:ti_pipe3");
 603 MODULE_AUTHOR("Texas Instruments Inc.");
 604 MODULE_DESCRIPTION("TI PIPE3 phy driver");
 605 MODULE_LICENSE("GPL v2");