1// SPDX-License-Identifier: GPL-2.0 2// TI LP50XX LED chip family driver 3// Copyright (C) 2018-20 Texas Instruments Incorporated - https://www.ti.com/ 4 5#include <linux/gpio/consumer.h> 6#include <linux/i2c.h> 7#include <linux/init.h> 8#include <linux/leds.h> 9#include <linux/module.h> 10#include <linux/mutex.h> 11#include <linux/of.h> 12#include <linux/of_gpio.h> 13#include <linux/regmap.h> 14#include <linux/regulator/consumer.h> 15#include <linux/slab.h> 16#include <uapi/linux/uleds.h> 17 18#include <linux/led-class-multicolor.h> 19 20#include "leds.h" 21 22#define LP50XX_DEV_CFG0 0x00 23#define LP50XX_DEV_CFG1 0x01 24#define LP50XX_LED_CFG0 0x02 25 26/* LP5009 and LP5012 registers */ 27#define LP5012_BNK_BRT 0x03 28#define LP5012_BNKA_CLR 0x04 29#define LP5012_BNKB_CLR 0x05 30#define LP5012_BNKC_CLR 0x06 31#define LP5012_LED0_BRT 0x07 32#define LP5012_OUT0_CLR 0x0b 33#define LP5012_RESET 0x17 34 35/* LP5018 and LP5024 registers */ 36#define LP5024_BNK_BRT 0x03 37#define LP5024_BNKA_CLR 0x04 38#define LP5024_BNKB_CLR 0x05 39#define LP5024_BNKC_CLR 0x06 40#define LP5024_LED0_BRT 0x07 41#define LP5024_OUT0_CLR 0x0f 42#define LP5024_RESET 0x27 43 44/* LP5030 and LP5036 registers */ 45#define LP5036_LED_CFG1 0x03 46#define LP5036_BNK_BRT 0x04 47#define LP5036_BNKA_CLR 0x05 48#define LP5036_BNKB_CLR 0x06 49#define LP5036_BNKC_CLR 0x07 50#define LP5036_LED0_BRT 0x08 51#define LP5036_OUT0_CLR 0x14 52#define LP5036_RESET 0x38 53 54#define LP50XX_SW_RESET 0xff 55#define LP50XX_CHIP_EN BIT(6) 56 57/* There are 3 LED outputs per bank */ 58#define LP50XX_LEDS_PER_MODULE 3 59 60#define LP5009_MAX_LED_MODULES 2 61#define LP5012_MAX_LED_MODULES 4 62#define LP5018_MAX_LED_MODULES 6 63#define LP5024_MAX_LED_MODULES 8 64#define LP5030_MAX_LED_MODULES 10 65#define LP5036_MAX_LED_MODULES 12 66 67static const struct reg_default lp5012_reg_defs[] = { 68 {LP50XX_DEV_CFG0, 0x0}, 69 {LP50XX_DEV_CFG1, 0x3c}, 70 {LP50XX_LED_CFG0, 0x0}, 71 {LP5012_BNK_BRT, 0xff}, 72 {LP5012_BNKA_CLR, 0x0f}, 73 {LP5012_BNKB_CLR, 0x0f}, 74 {LP5012_BNKC_CLR, 0x0f}, 75 {LP5012_LED0_BRT, 0x0f}, 76 /* LEDX_BRT registers are all 0xff for defaults */ 77 {0x08, 0xff}, {0x09, 0xff}, {0x0a, 0xff}, 78 {LP5012_OUT0_CLR, 0x0f}, 79 /* OUTX_CLR registers are all 0x0 for defaults */ 80 {0x0c, 0x00}, {0x0d, 0x00}, {0x0e, 0x00}, {0x0f, 0x00}, {0x10, 0x00}, 81 {0x11, 0x00}, {0x12, 0x00}, {0x13, 0x00}, {0x14, 0x00}, {0x15, 0x00}, 82 {0x16, 0x00}, 83 {LP5012_RESET, 0x00} 84}; 85 86static const struct reg_default lp5024_reg_defs[] = { 87 {LP50XX_DEV_CFG0, 0x0}, 88 {LP50XX_DEV_CFG1, 0x3c}, 89 {LP50XX_LED_CFG0, 0x0}, 90 {LP5024_BNK_BRT, 0xff}, 91 {LP5024_BNKA_CLR, 0x0f}, 92 {LP5024_BNKB_CLR, 0x0f}, 93 {LP5024_BNKC_CLR, 0x0f}, 94 {LP5024_LED0_BRT, 0x0f}, 95 /* LEDX_BRT registers are all 0xff for defaults */ 96 {0x08, 0xff}, {0x09, 0xff}, {0x0a, 0xff}, {0x0b, 0xff}, {0x0c, 0xff}, 97 {0x0d, 0xff}, {0x0e, 0xff}, 98 {LP5024_OUT0_CLR, 0x0f}, 99 /* OUTX_CLR registers are all 0x0 for defaults */ 100 {0x10, 0x00}, {0x11, 0x00}, {0x12, 0x00}, {0x13, 0x00}, {0x14, 0x00}, 101 {0x15, 0x00}, {0x16, 0x00}, {0x17, 0x00}, {0x18, 0x00}, {0x19, 0x00}, 102 {0x1a, 0x00}, {0x1b, 0x00}, {0x1c, 0x00}, {0x1d, 0x00}, {0x1e, 0x00}, 103 {0x1f, 0x00}, {0x20, 0x00}, {0x21, 0x00}, {0x22, 0x00}, {0x23, 0x00}, 104 {0x24, 0x00}, {0x25, 0x00}, {0x26, 0x00}, 105 {LP5024_RESET, 0x00} 106}; 107 108static const struct reg_default lp5036_reg_defs[] = { 109 {LP50XX_DEV_CFG0, 0x0}, 110 {LP50XX_DEV_CFG1, 0x3c}, 111 {LP50XX_LED_CFG0, 0x0}, 112 {LP5036_LED_CFG1, 0x0}, 113 {LP5036_BNK_BRT, 0xff}, 114 {LP5036_BNKA_CLR, 0x0f}, 115 {LP5036_BNKB_CLR, 0x0f}, 116 {LP5036_BNKC_CLR, 0x0f}, 117 {LP5036_LED0_BRT, 0x0f}, 118 /* LEDX_BRT registers are all 0xff for defaults */ 119 {0x08, 0xff}, {0x09, 0xff}, {0x0a, 0xff}, {0x0b, 0xff}, {0x0c, 0xff}, 120 {0x0d, 0xff}, {0x0e, 0xff}, {0x0f, 0xff}, {0x10, 0xff}, {0x11, 0xff}, 121 {0x12, 0xff}, {0x13, 0xff}, 122 {LP5036_OUT0_CLR, 0x0f}, 123 /* OUTX_CLR registers are all 0x0 for defaults */ 124 {0x15, 0x00}, {0x16, 0x00}, {0x17, 0x00}, {0x18, 0x00}, {0x19, 0x00}, 125 {0x1a, 0x00}, {0x1b, 0x00}, {0x1c, 0x00}, {0x1d, 0x00}, {0x1e, 0x00}, 126 {0x1f, 0x00}, {0x20, 0x00}, {0x21, 0x00}, {0x22, 0x00}, {0x23, 0x00}, 127 {0x24, 0x00}, {0x25, 0x00}, {0x26, 0x00}, {0x27, 0x00}, {0x28, 0x00}, 128 {0x29, 0x00}, {0x2a, 0x00}, {0x2b, 0x00}, {0x2c, 0x00}, {0x2d, 0x00}, 129 {0x2e, 0x00}, {0x2f, 0x00}, {0x30, 0x00}, {0x31, 0x00}, {0x32, 0x00}, 130 {0x33, 0x00}, {0x34, 0x00}, {0x35, 0x00}, {0x36, 0x00}, {0x37, 0x00}, 131 {LP5036_RESET, 0x00} 132}; 133 134static const struct regmap_config lp5012_regmap_config = { 135 .reg_bits = 8, 136 .val_bits = 8, 137 138 .max_register = LP5012_RESET, 139 .reg_defaults = lp5012_reg_defs, 140 .num_reg_defaults = ARRAY_SIZE(lp5012_reg_defs), 141 .cache_type = REGCACHE_FLAT, 142}; 143 144static const struct regmap_config lp5024_regmap_config = { 145 .reg_bits = 8, 146 .val_bits = 8, 147 148 .max_register = LP5024_RESET, 149 .reg_defaults = lp5024_reg_defs, 150 .num_reg_defaults = ARRAY_SIZE(lp5024_reg_defs), 151 .cache_type = REGCACHE_FLAT, 152}; 153 154static const struct regmap_config lp5036_regmap_config = { 155 .reg_bits = 8, 156 .val_bits = 8, 157 158 .max_register = LP5036_RESET, 159 .reg_defaults = lp5036_reg_defs, 160 .num_reg_defaults = ARRAY_SIZE(lp5036_reg_defs), 161 .cache_type = REGCACHE_FLAT, 162}; 163 164enum lp50xx_model { 165 LP5009, 166 LP5012, 167 LP5018, 168 LP5024, 169 LP5030, 170 LP5036, 171}; 172 173/** 174 * struct lp50xx_chip_info - 175 * @lp50xx_regmap_config: regmap register configuration 176 * @model_id: LED device model 177 * @max_modules: total number of supported LED modules 178 * @num_leds: number of LED outputs available on the device 179 * @led_brightness0_reg: first brightness register of the device 180 * @mix_out0_reg: first color mix register of the device 181 * @bank_brt_reg: bank brightness register 182 * @bank_mix_reg: color mix register 183 * @reset_reg: device reset register 184 */ 185struct lp50xx_chip_info { 186 const struct regmap_config *lp50xx_regmap_config; 187 int model_id; 188 u8 max_modules; 189 u8 num_leds; 190 u8 led_brightness0_reg; 191 u8 mix_out0_reg; 192 u8 bank_brt_reg; 193 u8 bank_mix_reg; 194 u8 reset_reg; 195}; 196 197static const struct lp50xx_chip_info lp50xx_chip_info_tbl[] = { 198 [LP5009] = { 199 .model_id = LP5009, 200 .max_modules = LP5009_MAX_LED_MODULES, 201 .num_leds = LP5009_MAX_LED_MODULES * LP50XX_LEDS_PER_MODULE, 202 .led_brightness0_reg = LP5012_LED0_BRT, 203 .mix_out0_reg = LP5012_OUT0_CLR, 204 .bank_brt_reg = LP5012_BNK_BRT, 205 .bank_mix_reg = LP5012_BNKA_CLR, 206 .reset_reg = LP5012_RESET, 207 .lp50xx_regmap_config = &lp5012_regmap_config, 208 }, 209 [LP5012] = { 210 .model_id = LP5012, 211 .max_modules = LP5012_MAX_LED_MODULES, 212 .num_leds = LP5012_MAX_LED_MODULES * LP50XX_LEDS_PER_MODULE, 213 .led_brightness0_reg = LP5012_LED0_BRT, 214 .mix_out0_reg = LP5012_OUT0_CLR, 215 .bank_brt_reg = LP5012_BNK_BRT, 216 .bank_mix_reg = LP5012_BNKA_CLR, 217 .reset_reg = LP5012_RESET, 218 .lp50xx_regmap_config = &lp5012_regmap_config, 219 }, 220 [LP5018] = { 221 .model_id = LP5018, 222 .max_modules = LP5018_MAX_LED_MODULES, 223 .num_leds = LP5018_MAX_LED_MODULES * LP50XX_LEDS_PER_MODULE, 224 .led_brightness0_reg = LP5024_LED0_BRT, 225 .mix_out0_reg = LP5024_OUT0_CLR, 226 .bank_brt_reg = LP5024_BNK_BRT, 227 .bank_mix_reg = LP5024_BNKA_CLR, 228 .reset_reg = LP5024_RESET, 229 .lp50xx_regmap_config = &lp5024_regmap_config, 230 }, 231 [LP5024] = { 232 .model_id = LP5024, 233 .max_modules = LP5024_MAX_LED_MODULES, 234 .num_leds = LP5024_MAX_LED_MODULES * LP50XX_LEDS_PER_MODULE, 235 .led_brightness0_reg = LP5024_LED0_BRT, 236 .mix_out0_reg = LP5024_OUT0_CLR, 237 .bank_brt_reg = LP5024_BNK_BRT, 238 .bank_mix_reg = LP5024_BNKA_CLR, 239 .reset_reg = LP5024_RESET, 240 .lp50xx_regmap_config = &lp5024_regmap_config, 241 }, 242 [LP5030] = { 243 .model_id = LP5030, 244 .max_modules = LP5030_MAX_LED_MODULES, 245 .num_leds = LP5030_MAX_LED_MODULES * LP50XX_LEDS_PER_MODULE, 246 .led_brightness0_reg = LP5036_LED0_BRT, 247 .mix_out0_reg = LP5036_OUT0_CLR, 248 .bank_brt_reg = LP5036_BNK_BRT, 249 .bank_mix_reg = LP5036_BNKA_CLR, 250 .reset_reg = LP5036_RESET, 251 .lp50xx_regmap_config = &lp5036_regmap_config, 252 }, 253 [LP5036] = { 254 .model_id = LP5036, 255 .max_modules = LP5036_MAX_LED_MODULES, 256 .num_leds = LP5036_MAX_LED_MODULES * LP50XX_LEDS_PER_MODULE, 257 .led_brightness0_reg = LP5036_LED0_BRT, 258 .mix_out0_reg = LP5036_OUT0_CLR, 259 .bank_brt_reg = LP5036_BNK_BRT, 260 .bank_mix_reg = LP5036_BNKA_CLR, 261 .reset_reg = LP5036_RESET, 262 .lp50xx_regmap_config = &lp5036_regmap_config, 263 }, 264}; 265 266struct lp50xx_led { 267 struct led_classdev_mc mc_cdev; 268 struct lp50xx *priv; 269 unsigned long bank_modules; 270 int led_intensity[LP50XX_LEDS_PER_MODULE]; 271 u8 ctrl_bank_enabled; 272 int led_number; 273}; 274 275/** 276 * struct lp50xx - 277 * @enable_gpio: hardware enable gpio 278 * @regulator: LED supply regulator pointer 279 * @client: pointer to the I2C client 280 * @regmap: device register map 281 * @dev: pointer to the devices device struct 282 * @lock: lock for reading/writing the device 283 * @chip_info: chip specific information (ie num_leds) 284 * @num_of_banked_leds: holds the number of banked LEDs 285 * @leds: array of LED strings 286 */ 287struct lp50xx { 288 struct gpio_desc *enable_gpio; 289 struct regulator *regulator; 290 struct i2c_client *client; 291 struct regmap *regmap; 292 struct device *dev; 293 struct mutex lock; 294 const struct lp50xx_chip_info *chip_info; 295 int num_of_banked_leds; 296 297 /* This needs to be at the end of the struct */ 298 struct lp50xx_led leds[]; 299}; 300 301static struct lp50xx_led *mcled_cdev_to_led(struct led_classdev_mc *mc_cdev) 302{ 303 return container_of(mc_cdev, struct lp50xx_led, mc_cdev); 304} 305 306static int lp50xx_brightness_set(struct led_classdev *cdev, 307 enum led_brightness brightness) 308{ 309 struct led_classdev_mc *mc_dev = lcdev_to_mccdev(cdev); 310 struct lp50xx_led *led = mcled_cdev_to_led(mc_dev); 311 const struct lp50xx_chip_info *led_chip = led->priv->chip_info; 312 u8 led_offset, reg_val; 313 int ret = 0; 314 int i; 315 316 mutex_lock(&led->priv->lock); 317 if (led->ctrl_bank_enabled) 318 reg_val = led_chip->bank_brt_reg; 319 else 320 reg_val = led_chip->led_brightness0_reg + 321 led->led_number; 322 323 ret = regmap_write(led->priv->regmap, reg_val, brightness); 324 if (ret) { 325 dev_err(&led->priv->client->dev, 326 "Cannot write brightness value %d\n", ret); 327 goto out; 328 } 329 330 for (i = 0; i < led->mc_cdev.num_colors; i++) { 331 if (led->ctrl_bank_enabled) { 332 reg_val = led_chip->bank_mix_reg + i; 333 } else { 334 led_offset = (led->led_number * 3) + i; 335 reg_val = led_chip->mix_out0_reg + led_offset; 336 } 337 338 ret = regmap_write(led->priv->regmap, reg_val, 339 mc_dev->subled_info[i].intensity); 340 if (ret) { 341 dev_err(&led->priv->client->dev, 342 "Cannot write intensity value %d\n", ret); 343 goto out; 344 } 345 } 346out: 347 mutex_unlock(&led->priv->lock); 348 return ret; 349} 350 351static int lp50xx_set_banks(struct lp50xx *priv, u32 led_banks[]) 352{ 353 u8 led_config_lo, led_config_hi; 354 u32 bank_enable_mask = 0; 355 int ret; 356 int i; 357 358 for (i = 0; i < priv->chip_info->max_modules; i++) { 359 if (led_banks[i]) 360 bank_enable_mask |= (1 << led_banks[i]); 361 } 362 363 led_config_lo = (u8)(bank_enable_mask & 0xff); 364 led_config_hi = (u8)(bank_enable_mask >> 8) & 0xff; 365 366 ret = regmap_write(priv->regmap, LP50XX_LED_CFG0, led_config_lo); 367 if (ret) 368 return ret; 369 370 if (priv->chip_info->model_id >= LP5030) 371 ret = regmap_write(priv->regmap, LP5036_LED_CFG1, led_config_hi); 372 373 return ret; 374} 375 376static int lp50xx_reset(struct lp50xx *priv) 377{ 378 return regmap_write(priv->regmap, priv->chip_info->reset_reg, LP50XX_SW_RESET); 379} 380 381static int lp50xx_enable_disable(struct lp50xx *priv, int enable_disable) 382{ 383 int ret; 384 385 if (priv->enable_gpio) { 386 ret = gpiod_direction_output(priv->enable_gpio, enable_disable); 387 if (ret) 388 return ret; 389 } 390 391 if (enable_disable) 392 return regmap_write(priv->regmap, LP50XX_DEV_CFG0, LP50XX_CHIP_EN); 393 else 394 return regmap_write(priv->regmap, LP50XX_DEV_CFG0, 0); 395 396} 397 398static int lp50xx_probe_leds(struct fwnode_handle *child, struct lp50xx *priv, 399 struct lp50xx_led *led, int num_leds) 400{ 401 u32 led_banks[LP5036_MAX_LED_MODULES] = {0}; 402 int led_number; 403 int ret; 404 405 if (num_leds > 1) { 406 if (num_leds > priv->chip_info->max_modules) { 407 dev_err(&priv->client->dev, "reg property is invalid\n"); 408 return -EINVAL; 409 } 410 411 priv->num_of_banked_leds = num_leds; 412 413 ret = fwnode_property_read_u32_array(child, "reg", led_banks, num_leds); 414 if (ret) { 415 dev_err(&priv->client->dev, "reg property is missing\n"); 416 return ret; 417 } 418 419 ret = lp50xx_set_banks(priv, led_banks); 420 if (ret) { 421 dev_err(&priv->client->dev, "Cannot setup banked LEDs\n"); 422 return ret; 423 } 424 425 led->ctrl_bank_enabled = 1; 426 } else { 427 ret = fwnode_property_read_u32(child, "reg", &led_number); 428 if (ret) { 429 dev_err(&priv->client->dev, "led reg property missing\n"); 430 return ret; 431 } 432 433 if (led_number > priv->chip_info->num_leds) { 434 dev_err(&priv->client->dev, "led-sources property is invalid\n"); 435 return -EINVAL; 436 } 437 438 led->led_number = led_number; 439 } 440 441 return 0; 442} 443 444static int lp50xx_probe_dt(struct lp50xx *priv) 445{ 446 struct fwnode_handle *child = NULL; 447 struct fwnode_handle *led_node = NULL; 448 struct led_init_data init_data = {}; 449 struct led_classdev *led_cdev; 450 struct mc_subled *mc_led_info; 451 struct lp50xx_led *led; 452 int ret = -EINVAL; 453 int num_colors; 454 u32 color_id; 455 int i = 0; 456 457 priv->enable_gpio = devm_gpiod_get_optional(priv->dev, "enable", GPIOD_OUT_LOW); 458 if (IS_ERR(priv->enable_gpio)) { 459 ret = PTR_ERR(priv->enable_gpio); 460 dev_err(&priv->client->dev, "Failed to get enable gpio: %d\n", 461 ret); 462 return ret; 463 } 464 465 priv->regulator = devm_regulator_get(priv->dev, "vled"); 466 if (IS_ERR(priv->regulator)) 467 priv->regulator = NULL; 468 469 device_for_each_child_node(priv->dev, child) { 470 led = &priv->leds[i]; 471 ret = fwnode_property_count_u32(child, "reg"); 472 if (ret < 0) { 473 dev_err(&priv->client->dev, "reg property is invalid\n"); 474 goto child_out; 475 } 476 477 ret = lp50xx_probe_leds(child, priv, led, ret); 478 if (ret) 479 goto child_out; 480 481 init_data.fwnode = child; 482 num_colors = 0; 483 484 /* 485 * There are only 3 LEDs per module otherwise they should be 486 * banked which also is presented as 3 LEDs. 487 */ 488 mc_led_info = devm_kcalloc(priv->dev, LP50XX_LEDS_PER_MODULE, 489 sizeof(*mc_led_info), GFP_KERNEL); 490 if (!mc_led_info) { 491 ret = -ENOMEM; 492 goto child_out; 493 } 494 495 fwnode_for_each_child_node(child, led_node) { 496 ret = fwnode_property_read_u32(led_node, "color", 497 &color_id); 498 if (ret) { 499 fwnode_handle_put(led_node); 500 dev_err(priv->dev, "Cannot read color\n"); 501 goto child_out; 502 } 503 504 mc_led_info[num_colors].color_index = color_id; 505 num_colors++; 506 } 507 508 led->priv = priv; 509 led->mc_cdev.num_colors = num_colors; 510 led->mc_cdev.subled_info = mc_led_info; 511 led_cdev = &led->mc_cdev.led_cdev; 512 led_cdev->brightness_set_blocking = lp50xx_brightness_set; 513 514 ret = devm_led_classdev_multicolor_register_ext(&priv->client->dev, 515 &led->mc_cdev, 516 &init_data); 517 if (ret) { 518 dev_err(&priv->client->dev, "led register err: %d\n", 519 ret); 520 goto child_out; 521 } 522 i++; 523 } 524 525 return 0; 526 527child_out: 528 fwnode_handle_put(child); 529 return ret; 530} 531 532static int lp50xx_probe(struct i2c_client *client, 533 const struct i2c_device_id *id) 534{ 535 struct lp50xx *led; 536 int count; 537 int ret; 538 539 count = device_get_child_node_count(&client->dev); 540 if (!count) { 541 dev_err(&client->dev, "LEDs are not defined in device tree!"); 542 return -ENODEV; 543 } 544 545 led = devm_kzalloc(&client->dev, struct_size(led, leds, count), 546 GFP_KERNEL); 547 if (!led) 548 return -ENOMEM; 549 550 mutex_init(&led->lock); 551 led->client = client; 552 led->dev = &client->dev; 553 led->chip_info = &lp50xx_chip_info_tbl[id->driver_data]; 554 i2c_set_clientdata(client, led); 555 led->regmap = devm_regmap_init_i2c(client, 556 led->chip_info->lp50xx_regmap_config); 557 if (IS_ERR(led->regmap)) { 558 ret = PTR_ERR(led->regmap); 559 dev_err(&client->dev, "Failed to allocate register map: %d\n", 560 ret); 561 return ret; 562 } 563 564 ret = lp50xx_reset(led); 565 if (ret) 566 return ret; 567 568 ret = lp50xx_enable_disable(led, 1); 569 if (ret) 570 return ret; 571 572 return lp50xx_probe_dt(led); 573} 574 575static int lp50xx_remove(struct i2c_client *client) 576{ 577 struct lp50xx *led = i2c_get_clientdata(client); 578 int ret; 579 580 ret = lp50xx_enable_disable(led, 0); 581 if (ret) { 582 dev_err(&led->client->dev, "Failed to disable chip\n"); 583 return ret; 584 } 585 586 if (led->regulator) { 587 ret = regulator_disable(led->regulator); 588 if (ret) 589 dev_err(&led->client->dev, 590 "Failed to disable regulator\n"); 591 } 592 593 mutex_destroy(&led->lock); 594 595 return 0; 596} 597 598static const struct i2c_device_id lp50xx_id[] = { 599 { "lp5009", LP5009 }, 600 { "lp5012", LP5012 }, 601 { "lp5018", LP5018 }, 602 { "lp5024", LP5024 }, 603 { "lp5030", LP5030 }, 604 { "lp5036", LP5036 }, 605 { } 606}; 607MODULE_DEVICE_TABLE(i2c, lp50xx_id); 608 609static const struct of_device_id of_lp50xx_leds_match[] = { 610 { .compatible = "ti,lp5009", .data = (void *)LP5009 }, 611 { .compatible = "ti,lp5012", .data = (void *)LP5012 }, 612 { .compatible = "ti,lp5018", .data = (void *)LP5018 }, 613 { .compatible = "ti,lp5024", .data = (void *)LP5024 }, 614 { .compatible = "ti,lp5030", .data = (void *)LP5030 }, 615 { .compatible = "ti,lp5036", .data = (void *)LP5036 }, 616 {}, 617}; 618MODULE_DEVICE_TABLE(of, of_lp50xx_leds_match); 619 620static struct i2c_driver lp50xx_driver = { 621 .driver = { 622 .name = "lp50xx", 623 .of_match_table = of_lp50xx_leds_match, 624 }, 625 .probe = lp50xx_probe, 626 .remove = lp50xx_remove, 627 .id_table = lp50xx_id, 628}; 629module_i2c_driver(lp50xx_driver); 630 631MODULE_DESCRIPTION("Texas Instruments LP50XX LED driver"); 632MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>"); 633MODULE_LICENSE("GPL v2"); 634