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