target/linux/s3c24xx/patches-2.6.24/1291-gta03-pca9632.patch.patch

   1 From f6b1f49300a24c329f5d1049031f711c6268be95 Mon Sep 17 00:00:00 2001
   2 From: Matt Hsu <matt_hsu@openmoko.org>
   3 Date: Thu, 18 Sep 2008 11:14:50 +0100
   4 Subject: [PATCH] gta03-pca9632.patch
   5
   6  - pca9632 is a LED driver which will be adopted in gta03.
   7
   8 Signed-off-by: Matt Hsu <matt_hsu@openmoko.org>
   9 ---
  10  drivers/i2c/chips/Kconfig   |    9 +
  11  drivers/i2c/chips/Makefile  |    1 +
  12  drivers/i2c/chips/pca9632.c |  551 +++++++++++++++++++++++++++++++++++++++++++
  13  drivers/i2c/chips/pca9632.h |   24 ++
  14  include/linux/i2c-id.h      |    1 +
  15  5 files changed, 586 insertions(+), 0 deletions(-)
  16  create mode 100644 drivers/i2c/chips/pca9632.c
  17  create mode 100644 drivers/i2c/chips/pca9632.h
  18
  19 diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
  20 index 1d6d36f..9af3c62 100644
  21 --- a/drivers/i2c/chips/Kconfig
  22 +++ b/drivers/i2c/chips/Kconfig
  23 @@ -193,4 +193,13 @@ config SENSORS_TSL256X
  24           This driver can also be built as a module.  If so, the module
  25           will be called tsl256x.
  26
  27 +config PCA9632
  28 +       tristate "Philips/NXP PCA9632 low power LED driver"
  29 +       depends on I2C
  30 +       help
  31 +         If you say yes here you get support for the Philips/NXP PCA9632
  32 +         LED driver.
  33 +
  34 +         This driver can also be built as a module.  If so, the module
  35 +         will be called pca9632.
  36  endmenu
  37 diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
  38 index 4b6ba04..67cd1e5 100644
  39 --- a/drivers/i2c/chips/Makefile
  40 +++ b/drivers/i2c/chips/Makefile
  41 @@ -18,6 +18,7 @@ obj-$(CONFIG_TPS65010)                += tps65010.o
  42  obj-$(CONFIG_MENELAUS)         += menelaus.o
  43  obj-$(CONFIG_SENSORS_TSL2550)  += tsl2550.o
  44  obj-$(CONFIG_SENSORS_TSL256X)  += tsl256x.o
  45 +obj-$(CONFIG_PCA9632)          += pca9632.o
  46
  47  ifeq ($(CONFIG_I2C_DEBUG_CHIP),y)
  48  EXTRA_CFLAGS += -DDEBUG
  49 diff --git a/drivers/i2c/chips/pca9632.c b/drivers/i2c/chips/pca9632.c
  50 new file mode 100644
  51 index 0000000..deda6a1
  52 --- /dev/null
  53 +++ b/drivers/i2c/chips/pca9632.c
  54 @@ -0,0 +1,551 @@
  55 +/*
  56 + *  Philips/NXP PCA9632 low power LED driver.
  57 + *  Copyright (C) 2008 Matt Hsu <matt_hsu@openmoko.org>
  58 + *
  59 + *  low_level implementation are based on pcf50606 driver
  60 + *
  61 + *  This program is free software; you can redistribute it and/or modify
  62 + *  it under the terms of the GNU General Public License as published by
  63 + *  the Free Software Foundation; version 2 of the License.
  64 + *
  65 + *  TODO:
  66 + *  - attach ledclass??
  67 + *  - add platform data
  68 + *
  69 + */
  70 +
  71 +#include <linux/module.h>
  72 +#include <linux/init.h>
  73 +#include <linux/i2c.h>
  74 +#include <linux/platform_device.h>
  75 +
  76 +#include "pca9632.h"
  77 +
  78 +/* Addresses to scan */
  79 +static unsigned short normal_i2c[] = { 0x62, I2C_CLIENT_END };
  80 +
  81 +/* Insmod parameters */
  82 +I2C_CLIENT_INSMOD_1(pca9632);
  83 +
  84 +enum pca9632_pwr_state {
  85 +       PCA9632_NORMAL,
  86 +       PCA9632_SLEEP,
  87 +};
  88 +
  89 +enum pca9632_led_output {
  90 +       PCA9632_OFF,
  91 +       PCA9632_ON,
  92 +       PCA9632_CTRL_BY_PWM,
  93 +       PCA9632_CTRL_BY_PWM_GRPPWM,
  94 +};
  95 +
  96 +static const char *led_output_name[] = {
  97 +       [PCA9632_OFF]                   = "off",
  98 +       [PCA9632_ON]                    = "fully-on",
  99 +       [PCA9632_CTRL_BY_PWM]           = "ctrl-by-pwm",
 100 +       [PCA9632_CTRL_BY_PWM_GRPPWM]    = "ctrl-by-pwm-grppwm",
 101 +};
 102 +
 103 +struct pca9632_data {
 104 +       struct i2c_client client;
 105 +       struct mutex lock;
 106 +};
 107 +
 108 +static struct i2c_driver pca9632_driver;
 109 +static struct platform_device *pca9632_pdev;
 110 +
 111 +static int pca9632_attach_adapter(struct i2c_adapter *adapter);
 112 +static int pca9632_detach_client(struct i2c_client *client);
 113 +
 114 +static int __reg_write(struct pca9632_data *pca, u_int8_t reg, u_int8_t val)
 115 +{
 116 +       return i2c_smbus_write_byte_data(&pca->client, reg, val);
 117 +}
 118 +
 119 +static int reg_write(struct pca9632_data *pca, u_int8_t reg, u_int8_t val)
 120 +{
 121 +       int ret;
 122 +
 123 +       mutex_lock(&pca->lock);
 124 +       ret = __reg_write(pca, reg, val);
 125 +       mutex_unlock(&pca->lock);
 126 +
 127 +       return ret;
 128 +}
 129 +
 130 +static int32_t __reg_read(struct pca9632_data *pca, u_int8_t reg)
 131 +{
 132 +       int32_t ret;
 133 +
 134 +       ret = i2c_smbus_read_byte_data(&pca->client, reg);
 135 +
 136 +       return ret;
 137 +}
 138 +
 139 +static u_int8_t reg_read(struct pca9632_data *pca, u_int8_t reg)
 140 +{
 141 +       int32_t ret;
 142 +
 143 +       mutex_lock(&pca->lock);
 144 +       ret = __reg_read(pca, reg);
 145 +       mutex_unlock(&pca->lock);
 146 +
 147 +       return ret & 0xff;
 148 +}
 149 +
 150 +static int reg_set_bit_mask(struct pca9632_data *pca,
 151 +                           u_int8_t reg, u_int8_t mask, u_int8_t val)
 152 +{
 153 +       int ret;
 154 +       u_int8_t tmp;
 155 +
 156 +       val &= mask;
 157 +
 158 +       mutex_lock(&pca->lock);
 159 +
 160 +       tmp = __reg_read(pca, reg);
 161 +       tmp &= ~mask;
 162 +       tmp |= val;
 163 +       ret = __reg_write(pca, reg, tmp);
 164 +
 165 +       mutex_unlock(&pca->lock);
 166 +
 167 +       return ret;
 168 +}
 169 +
 170 +static inline int calc_dc(uint8_t idc)
 171 +{
 172 +       return (idc * 100) / 256;
 173 +}
 174 +
 175 +/*
 176 + * Software reset
 177 + */
 178 +static int software_rst(struct i2c_adapter *adapter)
 179 +{
 180 +       u8 buf[] = { 0xa5, 0x5a };
 181 +
 182 +       struct i2c_msg msg[] = {
 183 +               {
 184 +                       .addr = 0x3,
 185 +                       .flags = 0,
 186 +                       .buf = &buf,
 187 +                       .len = sizeof(buf)
 188 +               }
 189 +       };
 190 +
 191 +       return i2c_transfer(adapter, msg, 1);
 192 +}
 193 +
 194 +/*
 195 + * Group dmblnk control
 196 + */
 197 +static void config_group_dmblnk(struct pca9632_data *pca, int group_dmblnk_mode)
 198 +{
 199 +       reg_set_bit_mask(pca, PCA9632_REG_MODE2, 0x20,
 200 +                       group_dmblnk_mode << PCA9632_DMBLNK_SHIFT);
 201 +}
 202 +
 203 +static int get_group_dmblnk(struct pca9632_data *pca)
 204 +{
 205 +       return reg_read(pca, PCA9632_REG_MODE2) >> PCA9632_DMBLNK_SHIFT;
 206 +}
 207 +
 208 +static ssize_t show_group_dmblnk(struct device *dev, struct device_attribute
 209 +                                       *attr, char *buf)
 210 +{
 211 +       struct i2c_client *client = to_i2c_client(dev);
 212 +       struct pca9632_data *pca = i2c_get_clientdata(client);
 213 +
 214 +       if (get_group_dmblnk(pca))
 215 +               return sprintf(buf, "blinking\n");
 216 +       else
 217 +               return sprintf(buf, "dimming\n");
 218 +}
 219 +
 220 +static ssize_t set_group_dmblnk(struct device *dev, struct device_attribute
 221 +                                       *attr, const char *buf, size_t count)
 222 +{
 223 +       struct i2c_client *client = to_i2c_client(dev);
 224 +       struct pca9632_data *pca = i2c_get_clientdata(client);
 225 +       unsigned int mode = simple_strtoul(buf, NULL, 10);
 226 +
 227 +       if (mode)
 228 +               dev_info(&pca->client.dev, "blinking\n");
 229 +       else
 230 +               dev_info(&pca->client.dev, "dimming\n");
 231 +
 232 +       config_group_dmblnk(pca, mode);
 233 +
 234 +       return count;
 235 +}
 236 +
 237 +static DEVICE_ATTR(group_dmblnk, S_IRUGO | S_IWUSR, show_group_dmblnk,
 238 +                                                       set_group_dmblnk);
 239 +
 240 +static int reg_id_by_name(const char *name)
 241 +{
 242 +       int reg_id = -1;
 243 +
 244 +       if (!strncmp(name, "led0", 4))
 245 +               reg_id = PCA9632_REG_PWM0;
 246 +       else if (!strncmp(name, "led1", 4))
 247 +               reg_id = PCA9632_REG_PWM1;
 248 +       else if (!strncmp(name, "led2", 4))
 249 +               reg_id = PCA9632_REG_PWM2;
 250 +       else if (!strncmp(name, "led3", 4))
 251 +               reg_id = PCA9632_REG_PWM3;
 252 +
 253 +       return reg_id;
 254 +}
 255 +
 256 +static int get_led_output(struct pca9632_data *pca, int ldrx)
 257 +{
 258 +       u_int8_t led_state;
 259 +
 260 +       ldrx = ldrx - 2;
 261 +       led_state = reg_read(pca, PCA9632_REG_LEDOUT);
 262 +       led_state = (led_state >> (2 * ldrx)) & 0x03;
 263 +
 264 +       return led_state;
 265 +}
 266 +
 267 +static void config_led_output(struct pca9632_data *pca, int ldrx,
 268 +                                       enum pca9632_led_output led_output)
 269 +{
 270 +       u_int8_t mask;
 271 +       int tmp;
 272 +
 273 +       ldrx = ldrx - 2;
 274 +       mask = 0x03 << (2 * ldrx);
 275 +       tmp = reg_set_bit_mask(pca, PCA9632_REG_LEDOUT,
 276 +                                       mask, led_output << (2 * ldrx));
 277 +}
 278 +
 279 +/*
 280 + * Individual brightness control
 281 + */
 282 +static ssize_t show_brightness(struct device *dev, struct device_attribute
 283 +                                       *attr, char *buf)
 284 +{
 285 +       struct i2c_client *client = to_i2c_client(dev);
 286 +       struct pca9632_data *pca = i2c_get_clientdata(client);
 287 +       int ldrx;
 288 +
 289 +       ldrx = reg_id_by_name(attr->attr.name);
 290 +
 291 +       switch (get_led_output(pca, ldrx)) {
 292 +
 293 +       case PCA9632_OFF:
 294 +       case PCA9632_ON:
 295 +               return sprintf(buf, "%s",
 296 +                       led_output_name[get_led_output(pca, ldrx)]);
 297 +
 298 +       case PCA9632_CTRL_BY_PWM:
 299 +               return sprintf(buf, "%d%% \n", calc_dc(reg_read(pca, ldrx)));
 300 +
 301 +       case PCA9632_CTRL_BY_PWM_GRPPWM:
 302 +               /* check group dmblnk */
 303 +               if (get_group_dmblnk(pca))
 304 +                       return sprintf(buf, "%d%% \n",
 305 +                               calc_dc(reg_read(pca, ldrx)));
 306 +               return sprintf(buf, "%d%% \n",
 307 +                                        calc_dc((reg_read(pca, ldrx) & 0xfc)));
 308 +       default:
 309 +               break;
 310 +       }
 311 +
 312 +       return sprintf(buf, "invalid argument\n");
 313 +}
 314 +
 315 +static ssize_t set_brightness(struct device *dev, struct device_attribute *attr,
 316 +                       const char *buf, size_t count)
 317 +{
 318 +       struct i2c_client *client = to_i2c_client(dev);
 319 +       struct pca9632_data *pca = i2c_get_clientdata(client);
 320 +       unsigned int pwm = simple_strtoul(buf, NULL, 10);
 321 +       int ldrx;
 322 +
 323 +       ldrx = reg_id_by_name(attr->attr.name);
 324 +       reg_set_bit_mask(pca, ldrx, 0xff, pwm);
 325 +
 326 +       return count;
 327 +}
 328 +
 329 +static
 330 +DEVICE_ATTR(led0_pwm, S_IRUGO | S_IWUSR, show_brightness, set_brightness);
 331 +static
 332 +DEVICE_ATTR(led1_pwm, S_IRUGO | S_IWUSR, show_brightness, set_brightness);
 333 +static
 334 +DEVICE_ATTR(led2_pwm, S_IRUGO | S_IWUSR, show_brightness, set_brightness);
 335 +static
 336 +DEVICE_ATTR(led3_pwm, S_IRUGO | S_IWUSR, show_brightness, set_brightness);
 337 +
 338 +/*
 339 + * Group frequency control
 340 + */
 341 +static ssize_t show_group_freq(struct device *dev, struct device_attribute
 342 +                               *attr, char *buf)
 343 +{
 344 +       uint32_t period;
 345 +       struct i2c_client *client = to_i2c_client(dev);
 346 +       struct pca9632_data *pca = i2c_get_clientdata(client);
 347 +
 348 +       period = ((reg_read(pca, PCA9632_REG_GRPFREQ) + 1) * 1000) / 24;
 349 +
 350 +       return sprintf(buf, "%d ms\n", period);
 351 +}
 352 +
 353 +static ssize_t set_group_freq(struct device *dev, struct device_attribute *attr,
 354 +                       const char *buf, size_t count)
 355 +{
 356 +       struct i2c_client *client = to_i2c_client(dev);
 357 +       struct pca9632_data *pca = i2c_get_clientdata(client);
 358 +
 359 +       unsigned int freq = simple_strtoul(buf, NULL, 10);
 360 +       reg_write(pca, PCA9632_REG_GRPFREQ, freq);
 361 +       return count;
 362 +}
 363 +
 364 +static
 365 +DEVICE_ATTR(group_freq, S_IRUGO | S_IWUSR, show_group_freq, set_group_freq);
 366 +
 367 +/*
 368 + * Group duty cycle tonrol*
 369 + */
 370 +static ssize_t show_group_dc(struct device *dev, struct device_attribute *attr,
 371 +                            char *buf)
 372 +{
 373 +       struct i2c_client *client = to_i2c_client(dev);
 374 +       struct pca9632_data *pca = i2c_get_clientdata(client);
 375 +
 376 +       if (get_group_dmblnk(pca)) {
 377 +
 378 +               if (reg_read(pca, PCA9632_REG_GRPFREQ) <= 0x03)
 379 +                       return sprintf(buf, "%d%% \n",
 380 +                            calc_dc(reg_read(pca, PCA9632_REG_GRPPWM) & 0xfc));
 381 +
 382 +               return sprintf(buf, "%d%% \n", calc_dc(reg_read(pca,
 383 +                                                         PCA9632_REG_GRPPWM)));
 384 +       }
 385 +
 386 +       return sprintf(buf, "%d%% \n", calc_dc(reg_read(pca,
 387 +                                                  PCA9632_REG_GRPPWM) & 0xf0));
 388 +}
 389 +
 390 +static ssize_t set_group_dc(struct device *dev, struct device_attribute *attr,
 391 +                       const char *buf, size_t count)
 392 +{
 393 +       struct i2c_client *client = to_i2c_client(dev);
 394 +       struct pca9632_data *pca = i2c_get_clientdata(client);
 395 +
 396 +       unsigned int dc = simple_strtoul(buf, NULL, 10);
 397 +
 398 +       reg_set_bit_mask(pca, PCA9632_REG_GRPPWM, 0xff, dc);
 399 +
 400 +       return count;
 401 +}
 402 +
 403 +static DEVICE_ATTR(group_dc, S_IRUGO | S_IWUSR, show_group_dc, set_group_dc);
 404 +
 405 +/*
 406 + * LED driver output
 407 + */
 408 +static ssize_t show_led_output(struct device *dev, struct device_attribute
 409 +                                       *attr, char *buf)
 410 +{
 411 +       struct i2c_client *client = to_i2c_client(dev);
 412 +       struct pca9632_data *pca = i2c_get_clientdata(client);
 413 +       int ldrx;
 414 +
 415 +       ldrx = reg_id_by_name(attr->attr.name);
 416 +
 417 +       return sprintf(buf, "%s \n",
 418 +                                   led_output_name[get_led_output(pca, ldrx)]);
 419 +
 420 +}
 421 +static ssize_t set_led_output(struct device *dev, struct device_attribute *attr,
 422 +                       const char *buf, size_t count)
 423 +{
 424 +       struct i2c_client *client = to_i2c_client(dev);
 425 +       struct pca9632_data *pca = i2c_get_clientdata(client);
 426 +       enum pca9632_led_output led_output;
 427 +       int ldrx;
 428 +
 429 +       led_output = simple_strtoul(buf, NULL, 10);
 430 +       ldrx = reg_id_by_name(attr->attr.name);
 431 +       config_led_output(pca, ldrx, led_output);
 432 +
 433 +       return count;
 434 +}
 435 +
 436 +static
 437 +DEVICE_ATTR(led0_output, S_IRUGO | S_IWUSR, show_led_output, set_led_output);
 438 +static
 439 +DEVICE_ATTR(led1_output, S_IRUGO | S_IWUSR, show_led_output, set_led_output);
 440 +static
 441 +DEVICE_ATTR(led2_output, S_IRUGO | S_IWUSR, show_led_output, set_led_output);
 442 +static
 443 +DEVICE_ATTR(led3_output, S_IRUGO | S_IWUSR, show_led_output, set_led_output);
 444 +
 445 +static struct attribute *pca_sysfs_entries[] = {
 446 +       &dev_attr_group_dmblnk.attr,
 447 +       &dev_attr_led0_pwm.attr,
 448 +       &dev_attr_led1_pwm.attr,
 449 +       &dev_attr_led2_pwm.attr,
 450 +       &dev_attr_led3_pwm.attr,
 451 +       &dev_attr_group_dc.attr,
 452 +       &dev_attr_group_freq.attr,
 453 +       &dev_attr_led0_output.attr,
 454 +       &dev_attr_led1_output.attr,
 455 +       &dev_attr_led2_output.attr,
 456 +       &dev_attr_led3_output.attr,
 457 +       NULL
 458 +};
 459 +
 460 +static struct attribute_group pca_attr_group = {
 461 +       .name   = NULL,                 /* put in device directory */
 462 +       .attrs  = pca_sysfs_entries,
 463 +};
 464 +
 465 +#ifdef CONFIG_PM
 466 +static int pca9632_suspend(struct device *dev, pm_message_t state)
 467 +{
 468 +       /* FIXME: Not implemented */
 469 +       return 0;
 470 +}
 471 +
 472 +static int pca9632_resume(struct device *dev)
 473 +{
 474 +       /* FIXME: Not implemented */
 475 +       return 0;
 476 +}
 477 +#else
 478 +#define pca9632_suspend NULL
 479 +#define pca9632_resume NULL
 480 +#endif
 481 +
 482 +static struct i2c_driver pca9632_driver = {
 483 +       .driver = {
 484 +               .name    = "pca9632",
 485 +               .suspend = pca9632_suspend,
 486 +               .resume  = pca9632_resume,
 487 +       },
 488 +       .id             = I2C_DRIVERID_PCA9632,
 489 +       .attach_adapter = pca9632_attach_adapter,
 490 +       .detach_client  = pca9632_detach_client,
 491 +};
 492 +
 493 +static int pca9632_detect(struct i2c_adapter *adapter, int address, int kind)
 494 +{
 495 +       struct i2c_client *new_client;
 496 +       struct pca9632_data *pca;
 497 +       int err;
 498 +
 499 +       pca = kzalloc(sizeof(struct pca9632_data), GFP_KERNEL);
 500 +       if (!pca)
 501 +               return -ENOMEM;
 502 +
 503 +       mutex_init(&pca->lock);
 504 +
 505 +       new_client = &pca->client;
 506 +       i2c_set_clientdata(new_client, pca);
 507 +       new_client->addr = address;
 508 +       new_client->adapter = adapter;
 509 +       new_client->driver = &pca9632_driver;
 510 +       new_client->flags = 0;
 511 +
 512 +       strlcpy(new_client->name, "pca9632", I2C_NAME_SIZE);
 513 +
 514 +       /* register with i2c core */
 515 +       err = i2c_attach_client(new_client);
 516 +       if (err)
 517 +               goto exit_kfree;
 518 +
 519 +       err = sysfs_create_group(&new_client->dev.kobj, &pca_attr_group);
 520 +       if (err)
 521 +               goto exit_detach;
 522 +
 523 +       /* software reset */
 524 +       if (!software_rst(adapter))
 525 +               dev_info(&pca->client.dev, "pca9632 sw-rst done\n");
 526 +
 527 +       /* enter normal mode */
 528 +       reg_set_bit_mask(pca, PCA9632_REG_MODE1, 0x10, PCA9632_NORMAL);
 529 +
 530 +       return 0;
 531 +
 532 +exit_detach:
 533 +       i2c_detach_client(new_client);
 534 +exit_kfree:
 535 +       kfree(pca);
 536 +
 537 +       return err;
 538 +}
 539 +
 540 +static int pca9632_attach_adapter(struct i2c_adapter *adapter)
 541 +{
 542 +       return i2c_probe(adapter, &addr_data, pca9632_detect);
 543 +}
 544 +
 545 +static int pca9632_detach_client(struct i2c_client *client)
 546 +{
 547 +       int err;
 548 +
 549 +       sysfs_remove_group(&client->dev.kobj, &pca_attr_group);
 550 +       err = i2c_detach_client(client);
 551 +
 552 +       if (err)
 553 +               return err;
 554 +
 555 +       kfree(i2c_get_clientdata(client));
 556 +
 557 +       return 0;
 558 +}
 559 +
 560 +static int __init pca9632_plat_probe(struct platform_device *pdev)
 561 +{
 562 +       /* FIXME: platform data should be attached here */
 563 +       pca9632_pdev = pdev;
 564 +
 565 +       return 0;
 566 +}
 567 +
 568 +static int pca9632_plat_remove(struct platform_device *pdev)
 569 +{
 570 +       return 0;
 571 +}
 572 +
 573 +static struct platform_driver pca9632_plat_driver = {
 574 +       .probe  = pca9632_plat_probe,
 575 +       .remove = pca9632_plat_remove,
 576 +       .driver = {
 577 +               .owner  = THIS_MODULE,
 578 +               .name   = "pca9632",
 579 +       },
 580 +};
 581 +
 582 +static int __init pca9632_init(void)
 583 +{
 584 +       int rc;
 585 +
 586 +       rc = platform_driver_register(&pca9632_plat_driver);
 587 +       if (!rc)
 588 +               i2c_add_driver(&pca9632_driver);
 589 +
 590 +       return rc;
 591 +}
 592 +
 593 +static void __exit pca9632_exit(void)
 594 +{
 595 +       i2c_del_driver(&pca9632_driver);
 596 +
 597 +       platform_driver_unregister(&pca9632_plat_driver);
 598 +}
 599 +
 600 +MODULE_AUTHOR("Matt Hsu <matt_hsu@openmoko.org>");
 601 +MODULE_DESCRIPTION("NXP PCA9632 driver");
 602 +MODULE_LICENSE("GPL");
 603 +
 604 +module_init(pca9632_init);
 605 +module_exit(pca9632_exit);
 606 diff --git a/drivers/i2c/chips/pca9632.h b/drivers/i2c/chips/pca9632.h
 607 new file mode 100644
 608 index 0000000..be2892e
 609 --- /dev/null
 610 +++ b/drivers/i2c/chips/pca9632.h
 611 @@ -0,0 +1,24 @@
 612 +#ifndef _PCA9632_H
 613 +#define _PCA9632_H
 614 +
 615 +
 616 +enum pca9632_regs{
 617 +
 618 +       PCA9632_REG_MODE1       = 0x00,
 619 +       PCA9632_REG_MODE2       = 0x01,
 620 +       PCA9632_REG_PWM0        = 0x02,
 621 +       PCA9632_REG_PWM1        = 0x03,
 622 +       PCA9632_REG_PWM2        = 0x04,
 623 +       PCA9632_REG_PWM3        = 0x05,
 624 +       PCA9632_REG_GRPPWM      = 0x06,
 625 +       PCA9632_REG_GRPFREQ     = 0x07,
 626 +       PCA9632_REG_LEDOUT      = 0x08,
 627 +       PCA9632_REG_SUBADDR1    = 0x09,
 628 +       PCA9632_REG_SUBADDR2    = 0x0a,
 629 +       PCA9632_REG_SUBADDR3    = 0x0b,
 630 +       PCA9632_REG_ALLCALLADR1 = 0x0c,
 631 +};
 632 +
 633 +#define PCA9632_DMBLNK_SHIFT   5
 634 +
 635 +#endif /* _PCA9632_H */
 636 diff --git a/include/linux/i2c-id.h b/include/linux/i2c-id.h
 637 index ee60156..d5a63fe 100644
 638 --- a/include/linux/i2c-id.h
 639 +++ b/include/linux/i2c-id.h
 640 @@ -170,6 +170,7 @@
 641  #define I2C_DRIVERID_PCF50606 1049
 642  #define I2C_DRIVERID_TSL256X 1050
 643  #define I2C_DRIVERID_PCF50633 1051
 644 +#define I2C_DRIVERID_PCA9632  1052
 645
 646  /*
 647   * ---- Adapter types ----------------------------------------------------
 648 --
 649 1.5.6.5
 650