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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 | // SPDX-License-Identifier: GPL-2.0 // TI LP50XX LED chip family driver // Copyright (C) 2018-20 Texas Instruments Incorporated - https://www.ti.com/ #include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/init.h> #include <linux/leds.h> #include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> #include <uapi/linux/uleds.h> #include <linux/led-class-multicolor.h> #include "leds.h" #define LP50XX_DEV_CFG0 0x00 #define LP50XX_DEV_CFG1 0x01 #define LP50XX_LED_CFG0 0x02 /* LP5009 and LP5012 registers */ #define LP5012_BNK_BRT 0x03 #define LP5012_BNKA_CLR 0x04 #define LP5012_BNKB_CLR 0x05 #define LP5012_BNKC_CLR 0x06 #define LP5012_LED0_BRT 0x07 #define LP5012_OUT0_CLR 0x0b #define LP5012_RESET 0x17 /* LP5018 and LP5024 registers */ #define LP5024_BNK_BRT 0x03 #define LP5024_BNKA_CLR 0x04 #define LP5024_BNKB_CLR 0x05 #define LP5024_BNKC_CLR 0x06 #define LP5024_LED0_BRT 0x07 #define LP5024_OUT0_CLR 0x0f #define LP5024_RESET 0x27 /* LP5030 and LP5036 registers */ #define LP5036_LED_CFG1 0x03 #define LP5036_BNK_BRT 0x04 #define LP5036_BNKA_CLR 0x05 #define LP5036_BNKB_CLR 0x06 #define LP5036_BNKC_CLR 0x07 #define LP5036_LED0_BRT 0x08 #define LP5036_OUT0_CLR 0x14 #define LP5036_RESET 0x38 #define LP50XX_SW_RESET 0xff #define LP50XX_CHIP_EN BIT(6) /* There are 3 LED outputs per bank */ #define LP50XX_LEDS_PER_MODULE 3 #define LP5009_MAX_LED_MODULES 2 #define LP5012_MAX_LED_MODULES 4 #define LP5018_MAX_LED_MODULES 6 #define LP5024_MAX_LED_MODULES 8 #define LP5030_MAX_LED_MODULES 10 #define LP5036_MAX_LED_MODULES 12 static const struct reg_default lp5012_reg_defs[] = { {LP50XX_DEV_CFG0, 0x0}, {LP50XX_DEV_CFG1, 0x3c}, {LP50XX_LED_CFG0, 0x0}, {LP5012_BNK_BRT, 0xff}, {LP5012_BNKA_CLR, 0x0f}, {LP5012_BNKB_CLR, 0x0f}, {LP5012_BNKC_CLR, 0x0f}, {LP5012_LED0_BRT, 0x0f}, /* LEDX_BRT registers are all 0xff for defaults */ {0x08, 0xff}, {0x09, 0xff}, {0x0a, 0xff}, {LP5012_OUT0_CLR, 0x0f}, /* OUTX_CLR registers are all 0x0 for defaults */ {0x0c, 0x00}, {0x0d, 0x00}, {0x0e, 0x00}, {0x0f, 0x00}, {0x10, 0x00}, {0x11, 0x00}, {0x12, 0x00}, {0x13, 0x00}, {0x14, 0x00}, {0x15, 0x00}, {0x16, 0x00}, {LP5012_RESET, 0x00} }; static const struct reg_default lp5024_reg_defs[] = { {LP50XX_DEV_CFG0, 0x0}, {LP50XX_DEV_CFG1, 0x3c}, {LP50XX_LED_CFG0, 0x0}, {LP5024_BNK_BRT, 0xff}, {LP5024_BNKA_CLR, 0x0f}, {LP5024_BNKB_CLR, 0x0f}, {LP5024_BNKC_CLR, 0x0f}, {LP5024_LED0_BRT, 0x0f}, /* LEDX_BRT registers are all 0xff for defaults */ {0x08, 0xff}, {0x09, 0xff}, {0x0a, 0xff}, {0x0b, 0xff}, {0x0c, 0xff}, {0x0d, 0xff}, {0x0e, 0xff}, {LP5024_OUT0_CLR, 0x0f}, /* OUTX_CLR registers are all 0x0 for defaults */ {0x10, 0x00}, {0x11, 0x00}, {0x12, 0x00}, {0x13, 0x00}, {0x14, 0x00}, {0x15, 0x00}, {0x16, 0x00}, {0x17, 0x00}, {0x18, 0x00}, {0x19, 0x00}, {0x1a, 0x00}, {0x1b, 0x00}, {0x1c, 0x00}, {0x1d, 0x00}, {0x1e, 0x00}, {0x1f, 0x00}, {0x20, 0x00}, {0x21, 0x00}, {0x22, 0x00}, {0x23, 0x00}, {0x24, 0x00}, {0x25, 0x00}, {0x26, 0x00}, {LP5024_RESET, 0x00} }; static const struct reg_default lp5036_reg_defs[] = { {LP50XX_DEV_CFG0, 0x0}, {LP50XX_DEV_CFG1, 0x3c}, {LP50XX_LED_CFG0, 0x0}, {LP5036_LED_CFG1, 0x0}, {LP5036_BNK_BRT, 0xff}, {LP5036_BNKA_CLR, 0x0f}, {LP5036_BNKB_CLR, 0x0f}, {LP5036_BNKC_CLR, 0x0f}, {LP5036_LED0_BRT, 0x0f}, /* LEDX_BRT registers are all 0xff for defaults */ {0x08, 0xff}, {0x09, 0xff}, {0x0a, 0xff}, {0x0b, 0xff}, {0x0c, 0xff}, {0x0d, 0xff}, {0x0e, 0xff}, {0x0f, 0xff}, {0x10, 0xff}, {0x11, 0xff}, {0x12, 0xff}, {0x13, 0xff}, {LP5036_OUT0_CLR, 0x0f}, /* OUTX_CLR registers are all 0x0 for defaults */ {0x15, 0x00}, {0x16, 0x00}, {0x17, 0x00}, {0x18, 0x00}, {0x19, 0x00}, {0x1a, 0x00}, {0x1b, 0x00}, {0x1c, 0x00}, {0x1d, 0x00}, {0x1e, 0x00}, {0x1f, 0x00}, {0x20, 0x00}, {0x21, 0x00}, {0x22, 0x00}, {0x23, 0x00}, {0x24, 0x00}, {0x25, 0x00}, {0x26, 0x00}, {0x27, 0x00}, {0x28, 0x00}, {0x29, 0x00}, {0x2a, 0x00}, {0x2b, 0x00}, {0x2c, 0x00}, {0x2d, 0x00}, {0x2e, 0x00}, {0x2f, 0x00}, {0x30, 0x00}, {0x31, 0x00}, {0x32, 0x00}, {0x33, 0x00}, {0x34, 0x00}, {0x35, 0x00}, {0x36, 0x00}, {0x37, 0x00}, {LP5036_RESET, 0x00} }; static const struct regmap_config lp5012_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = LP5012_RESET, .reg_defaults = lp5012_reg_defs, .num_reg_defaults = ARRAY_SIZE(lp5012_reg_defs), .cache_type = REGCACHE_FLAT, }; static const struct regmap_config lp5024_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = LP5024_RESET, .reg_defaults = lp5024_reg_defs, .num_reg_defaults = ARRAY_SIZE(lp5024_reg_defs), .cache_type = REGCACHE_FLAT, }; static const struct regmap_config lp5036_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = LP5036_RESET, .reg_defaults = lp5036_reg_defs, .num_reg_defaults = ARRAY_SIZE(lp5036_reg_defs), .cache_type = REGCACHE_FLAT, }; enum lp50xx_model { LP5009, LP5012, LP5018, LP5024, LP5030, LP5036, }; /** * struct lp50xx_chip_info - * @lp50xx_regmap_config: regmap register configuration * @model_id: LED device model * @max_modules: total number of supported LED modules * @num_leds: number of LED outputs available on the device * @led_brightness0_reg: first brightness register of the device * @mix_out0_reg: first color mix register of the device * @bank_brt_reg: bank brightness register * @bank_mix_reg: color mix register * @reset_reg: device reset register */ struct lp50xx_chip_info { const struct regmap_config *lp50xx_regmap_config; int model_id; u8 max_modules; u8 num_leds; u8 led_brightness0_reg; u8 mix_out0_reg; u8 bank_brt_reg; u8 bank_mix_reg; u8 reset_reg; }; static const struct lp50xx_chip_info lp50xx_chip_info_tbl[] = { [LP5009] = { .model_id = LP5009, .max_modules = LP5009_MAX_LED_MODULES, .num_leds = LP5009_MAX_LED_MODULES * LP50XX_LEDS_PER_MODULE, .led_brightness0_reg = LP5012_LED0_BRT, .mix_out0_reg = LP5012_OUT0_CLR, .bank_brt_reg = LP5012_BNK_BRT, .bank_mix_reg = LP5012_BNKA_CLR, .reset_reg = LP5012_RESET, .lp50xx_regmap_config = &lp5012_regmap_config, }, [LP5012] = { .model_id = LP5012, .max_modules = LP5012_MAX_LED_MODULES, .num_leds = LP5012_MAX_LED_MODULES * LP50XX_LEDS_PER_MODULE, .led_brightness0_reg = LP5012_LED0_BRT, .mix_out0_reg = LP5012_OUT0_CLR, .bank_brt_reg = LP5012_BNK_BRT, .bank_mix_reg = LP5012_BNKA_CLR, .reset_reg = LP5012_RESET, .lp50xx_regmap_config = &lp5012_regmap_config, }, [LP5018] = { .model_id = LP5018, .max_modules = LP5018_MAX_LED_MODULES, .num_leds = LP5018_MAX_LED_MODULES * LP50XX_LEDS_PER_MODULE, .led_brightness0_reg = LP5024_LED0_BRT, .mix_out0_reg = LP5024_OUT0_CLR, .bank_brt_reg = LP5024_BNK_BRT, .bank_mix_reg = LP5024_BNKA_CLR, .reset_reg = LP5024_RESET, .lp50xx_regmap_config = &lp5024_regmap_config, }, [LP5024] = { .model_id = LP5024, .max_modules = LP5024_MAX_LED_MODULES, .num_leds = LP5024_MAX_LED_MODULES * LP50XX_LEDS_PER_MODULE, .led_brightness0_reg = LP5024_LED0_BRT, .mix_out0_reg = LP5024_OUT0_CLR, .bank_brt_reg = LP5024_BNK_BRT, .bank_mix_reg = LP5024_BNKA_CLR, .reset_reg = LP5024_RESET, .lp50xx_regmap_config = &lp5024_regmap_config, }, [LP5030] = { .model_id = LP5030, .max_modules = LP5030_MAX_LED_MODULES, .num_leds = LP5030_MAX_LED_MODULES * LP50XX_LEDS_PER_MODULE, .led_brightness0_reg = LP5036_LED0_BRT, .mix_out0_reg = LP5036_OUT0_CLR, .bank_brt_reg = LP5036_BNK_BRT, .bank_mix_reg = LP5036_BNKA_CLR, .reset_reg = LP5036_RESET, .lp50xx_regmap_config = &lp5036_regmap_config, }, [LP5036] = { .model_id = LP5036, .max_modules = LP5036_MAX_LED_MODULES, .num_leds = LP5036_MAX_LED_MODULES * LP50XX_LEDS_PER_MODULE, .led_brightness0_reg = LP5036_LED0_BRT, .mix_out0_reg = LP5036_OUT0_CLR, .bank_brt_reg = LP5036_BNK_BRT, .bank_mix_reg = LP5036_BNKA_CLR, .reset_reg = LP5036_RESET, .lp50xx_regmap_config = &lp5036_regmap_config, }, }; struct lp50xx_led { struct led_classdev_mc mc_cdev; struct lp50xx *priv; unsigned long bank_modules; u8 ctrl_bank_enabled; int led_number; }; /** * struct lp50xx - * @enable_gpio: hardware enable gpio * @regulator: LED supply regulator pointer * @client: pointer to the I2C client * @regmap: device register map * @dev: pointer to the devices device struct * @lock: lock for reading/writing the device * @chip_info: chip specific information (ie num_leds) * @num_of_banked_leds: holds the number of banked LEDs * @leds: array of LED strings */ struct lp50xx { struct gpio_desc *enable_gpio; struct regulator *regulator; struct i2c_client *client; struct regmap *regmap; struct device *dev; struct mutex lock; const struct lp50xx_chip_info *chip_info; int num_of_banked_leds; /* This needs to be at the end of the struct */ struct lp50xx_led leds[]; }; static struct lp50xx_led *mcled_cdev_to_led(struct led_classdev_mc *mc_cdev) { return container_of(mc_cdev, struct lp50xx_led, mc_cdev); } static int lp50xx_brightness_set(struct led_classdev *cdev, enum led_brightness brightness) { struct led_classdev_mc *mc_dev = lcdev_to_mccdev(cdev); struct lp50xx_led *led = mcled_cdev_to_led(mc_dev); const struct lp50xx_chip_info *led_chip = led->priv->chip_info; u8 led_offset, reg_val; int ret = 0; int i; mutex_lock(&led->priv->lock); if (led->ctrl_bank_enabled) reg_val = led_chip->bank_brt_reg; else reg_val = led_chip->led_brightness0_reg + led->led_number; ret = regmap_write(led->priv->regmap, reg_val, brightness); if (ret) { dev_err(led->priv->dev, "Cannot write brightness value %d\n", ret); goto out; } for (i = 0; i < led->mc_cdev.num_colors; i++) { if (led->ctrl_bank_enabled) { reg_val = led_chip->bank_mix_reg + i; } else { led_offset = (led->led_number * 3) + i; reg_val = led_chip->mix_out0_reg + led_offset; } ret = regmap_write(led->priv->regmap, reg_val, mc_dev->subled_info[i].intensity); if (ret) { dev_err(led->priv->dev, "Cannot write intensity value %d\n", ret); goto out; } } out: mutex_unlock(&led->priv->lock); return ret; } static int lp50xx_set_banks(struct lp50xx *priv, u32 led_banks[]) { u8 led_config_lo, led_config_hi; u32 bank_enable_mask = 0; int ret; int i; for (i = 0; i < priv->chip_info->max_modules; i++) { if (led_banks[i]) bank_enable_mask |= (1 << led_banks[i]); } led_config_lo = bank_enable_mask; led_config_hi = bank_enable_mask >> 8; ret = regmap_write(priv->regmap, LP50XX_LED_CFG0, led_config_lo); if (ret) return ret; if (priv->chip_info->model_id >= LP5030) ret = regmap_write(priv->regmap, LP5036_LED_CFG1, led_config_hi); return ret; } static int lp50xx_reset(struct lp50xx *priv) { return regmap_write(priv->regmap, priv->chip_info->reset_reg, LP50XX_SW_RESET); } static int lp50xx_enable_disable(struct lp50xx *priv, int enable_disable) { int ret; ret = gpiod_direction_output(priv->enable_gpio, enable_disable); if (ret) return ret; if (enable_disable) return regmap_write(priv->regmap, LP50XX_DEV_CFG0, LP50XX_CHIP_EN); else return regmap_write(priv->regmap, LP50XX_DEV_CFG0, 0); } static int lp50xx_probe_leds(struct fwnode_handle *child, struct lp50xx *priv, struct lp50xx_led *led, int num_leds) { u32 led_banks[LP5036_MAX_LED_MODULES] = {0}; int led_number; int ret; if (num_leds > 1) { if (num_leds > priv->chip_info->max_modules) { dev_err(priv->dev, "reg property is invalid\n"); return -EINVAL; } priv->num_of_banked_leds = num_leds; ret = fwnode_property_read_u32_array(child, "reg", led_banks, num_leds); if (ret) { dev_err(priv->dev, "reg property is missing\n"); return ret; } ret = lp50xx_set_banks(priv, led_banks); if (ret) { dev_err(priv->dev, "Cannot setup banked LEDs\n"); return ret; } led->ctrl_bank_enabled = 1; } else { ret = fwnode_property_read_u32(child, "reg", &led_number); if (ret) { dev_err(priv->dev, "led reg property missing\n"); return ret; } if (led_number > priv->chip_info->num_leds) { dev_err(priv->dev, "led-sources property is invalid\n"); return -EINVAL; } led->led_number = led_number; } return 0; } static int lp50xx_probe_dt(struct lp50xx *priv) { struct fwnode_handle *child = NULL; struct fwnode_handle *led_node = NULL; struct led_init_data init_data = {}; struct led_classdev *led_cdev; struct mc_subled *mc_led_info; struct lp50xx_led *led; int ret = -EINVAL; int num_colors; u32 color_id; int i = 0; priv->enable_gpio = devm_gpiod_get_optional(priv->dev, "enable", GPIOD_OUT_LOW); if (IS_ERR(priv->enable_gpio)) return dev_err_probe(priv->dev, PTR_ERR(priv->enable_gpio), "Failed to get enable GPIO\n"); priv->regulator = devm_regulator_get(priv->dev, "vled"); if (IS_ERR(priv->regulator)) priv->regulator = NULL; device_for_each_child_node(priv->dev, child) { led = &priv->leds[i]; ret = fwnode_property_count_u32(child, "reg"); if (ret < 0) { dev_err(priv->dev, "reg property is invalid\n"); goto child_out; } ret = lp50xx_probe_leds(child, priv, led, ret); if (ret) goto child_out; init_data.fwnode = child; num_colors = 0; /* * There are only 3 LEDs per module otherwise they should be * banked which also is presented as 3 LEDs. */ mc_led_info = devm_kcalloc(priv->dev, LP50XX_LEDS_PER_MODULE, sizeof(*mc_led_info), GFP_KERNEL); if (!mc_led_info) { ret = -ENOMEM; goto child_out; } fwnode_for_each_child_node(child, led_node) { ret = fwnode_property_read_u32(led_node, "color", &color_id); if (ret) { fwnode_handle_put(led_node); dev_err(priv->dev, "Cannot read color\n"); goto child_out; } mc_led_info[num_colors].color_index = color_id; num_colors++; } led->priv = priv; led->mc_cdev.num_colors = num_colors; led->mc_cdev.subled_info = mc_led_info; led_cdev = &led->mc_cdev.led_cdev; led_cdev->brightness_set_blocking = lp50xx_brightness_set; ret = devm_led_classdev_multicolor_register_ext(priv->dev, &led->mc_cdev, &init_data); if (ret) { dev_err(priv->dev, "led register err: %d\n", ret); goto child_out; } i++; } return 0; child_out: fwnode_handle_put(child); return ret; } static int lp50xx_probe(struct i2c_client *client) { struct lp50xx *led; int count; int ret; count = device_get_child_node_count(&client->dev); if (!count) { dev_err(&client->dev, "LEDs are not defined in device tree!"); return -ENODEV; } led = devm_kzalloc(&client->dev, struct_size(led, leds, count), GFP_KERNEL); if (!led) return -ENOMEM; mutex_init(&led->lock); led->client = client; led->dev = &client->dev; led->chip_info = device_get_match_data(&client->dev); i2c_set_clientdata(client, led); led->regmap = devm_regmap_init_i2c(client, led->chip_info->lp50xx_regmap_config); if (IS_ERR(led->regmap)) { ret = PTR_ERR(led->regmap); dev_err(&client->dev, "Failed to allocate register map: %d\n", ret); return ret; } ret = lp50xx_reset(led); if (ret) return ret; ret = lp50xx_enable_disable(led, 1); if (ret) return ret; return lp50xx_probe_dt(led); } static void lp50xx_remove(struct i2c_client *client) { struct lp50xx *led = i2c_get_clientdata(client); int ret; ret = lp50xx_enable_disable(led, 0); if (ret) dev_err(led->dev, "Failed to disable chip\n"); if (led->regulator) { ret = regulator_disable(led->regulator); if (ret) dev_err(led->dev, "Failed to disable regulator\n"); } mutex_destroy(&led->lock); } static const struct i2c_device_id lp50xx_id[] = { { "lp5009", (kernel_ulong_t)&lp50xx_chip_info_tbl[LP5009] }, { "lp5012", (kernel_ulong_t)&lp50xx_chip_info_tbl[LP5012] }, { "lp5018", (kernel_ulong_t)&lp50xx_chip_info_tbl[LP5018] }, { "lp5024", (kernel_ulong_t)&lp50xx_chip_info_tbl[LP5024] }, { "lp5030", (kernel_ulong_t)&lp50xx_chip_info_tbl[LP5030] }, { "lp5036", (kernel_ulong_t)&lp50xx_chip_info_tbl[LP5036] }, { } }; MODULE_DEVICE_TABLE(i2c, lp50xx_id); static const struct of_device_id of_lp50xx_leds_match[] = { { .compatible = "ti,lp5009", .data = &lp50xx_chip_info_tbl[LP5009] }, { .compatible = "ti,lp5012", .data = &lp50xx_chip_info_tbl[LP5012] }, { .compatible = "ti,lp5018", .data = &lp50xx_chip_info_tbl[LP5018] }, { .compatible = "ti,lp5024", .data = &lp50xx_chip_info_tbl[LP5024] }, { .compatible = "ti,lp5030", .data = &lp50xx_chip_info_tbl[LP5030] }, { .compatible = "ti,lp5036", .data = &lp50xx_chip_info_tbl[LP5036] }, {} }; MODULE_DEVICE_TABLE(of, of_lp50xx_leds_match); static struct i2c_driver lp50xx_driver = { .driver = { .name = "lp50xx", .of_match_table = of_lp50xx_leds_match, }, .probe_new = lp50xx_probe, .remove = lp50xx_remove, .id_table = lp50xx_id, }; module_i2c_driver(lp50xx_driver); MODULE_DESCRIPTION("Texas Instruments LP50XX LED driver"); MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>"); MODULE_LICENSE("GPL v2"); |