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