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 u8 ctrl_bank_enabled;
269 int led_number;
270 };
271
272 /**
273 * struct lp50xx -
274 * @enable_gpio: hardware enable gpio
275 * @regulator: LED supply regulator pointer
276 * @client: pointer to the I2C client
277 * @regmap: device register map
278 * @dev: pointer to the devices device struct
279 * @lock: lock for reading/writing the device
280 * @chip_info: chip specific information (ie num_leds)
281 * @leds: array of LED strings
282 */
283 struct lp50xx {
284 struct gpio_desc *enable_gpio;
285 struct regulator *regulator;
286 struct i2c_client *client;
287 struct regmap *regmap;
288 struct device *dev;
289 struct mutex lock;
290 const struct lp50xx_chip_info *chip_info;
291
292 /* This needs to be at the end of the struct */
293 struct lp50xx_led leds[];
294 };
295
mcled_cdev_to_led(struct led_classdev_mc * mc_cdev)296 static struct lp50xx_led *mcled_cdev_to_led(struct led_classdev_mc *mc_cdev)
297 {
298 return container_of(mc_cdev, struct lp50xx_led, mc_cdev);
299 }
300
lp50xx_brightness_set(struct led_classdev * cdev,enum led_brightness brightness)301 static int lp50xx_brightness_set(struct led_classdev *cdev,
302 enum led_brightness brightness)
303 {
304 struct led_classdev_mc *mc_dev = lcdev_to_mccdev(cdev);
305 struct lp50xx_led *led = mcled_cdev_to_led(mc_dev);
306 const struct lp50xx_chip_info *led_chip = led->priv->chip_info;
307 u8 led_offset, reg_val;
308 int ret = 0;
309 int i;
310
311 mutex_lock(&led->priv->lock);
312 if (led->ctrl_bank_enabled)
313 reg_val = led_chip->bank_brt_reg;
314 else
315 reg_val = led_chip->led_brightness0_reg +
316 led->led_number;
317
318 ret = regmap_write(led->priv->regmap, reg_val, brightness);
319 if (ret) {
320 dev_err(led->priv->dev,
321 "Cannot write brightness value %d\n", ret);
322 goto out;
323 }
324
325 for (i = 0; i < led->mc_cdev.num_colors; i++) {
326 if (led->ctrl_bank_enabled) {
327 reg_val = led_chip->bank_mix_reg + i;
328 } else {
329 led_offset = (led->led_number * 3) + i;
330 reg_val = led_chip->mix_out0_reg + led_offset;
331 }
332
333 ret = regmap_write(led->priv->regmap, reg_val,
334 mc_dev->subled_info[i].intensity);
335 if (ret) {
336 dev_err(led->priv->dev,
337 "Cannot write intensity value %d\n", ret);
338 goto out;
339 }
340 }
341 out:
342 mutex_unlock(&led->priv->lock);
343 return ret;
344 }
345
lp50xx_set_banks(struct lp50xx * priv,u32 led_banks[])346 static int lp50xx_set_banks(struct lp50xx *priv, u32 led_banks[])
347 {
348 u8 led_config_lo, led_config_hi;
349 u32 bank_enable_mask = 0;
350 int ret;
351 int i;
352
353 for (i = 0; i < priv->chip_info->max_modules; i++) {
354 if (led_banks[i])
355 bank_enable_mask |= (1 << led_banks[i]);
356 }
357
358 led_config_lo = bank_enable_mask;
359 led_config_hi = bank_enable_mask >> 8;
360
361 ret = regmap_write(priv->regmap, LP50XX_LED_CFG0, led_config_lo);
362 if (ret)
363 return ret;
364
365 if (priv->chip_info->model_id >= LP5030)
366 ret = regmap_write(priv->regmap, LP5036_LED_CFG1, led_config_hi);
367
368 return ret;
369 }
370
lp50xx_reset(struct lp50xx * priv)371 static int lp50xx_reset(struct lp50xx *priv)
372 {
373 return regmap_write(priv->regmap, priv->chip_info->reset_reg, LP50XX_SW_RESET);
374 }
375
lp50xx_enable_disable(struct lp50xx * priv,int enable_disable)376 static int lp50xx_enable_disable(struct lp50xx *priv, int enable_disable)
377 {
378 int ret;
379
380 ret = gpiod_direction_output(priv->enable_gpio, enable_disable);
381 if (ret)
382 return ret;
383
384 if (enable_disable)
385 return regmap_write(priv->regmap, LP50XX_DEV_CFG0, LP50XX_CHIP_EN);
386 else
387 return regmap_write(priv->regmap, LP50XX_DEV_CFG0, 0);
388
389 }
390
lp50xx_probe_leds(struct fwnode_handle * child,struct lp50xx * priv,struct lp50xx_led * led,int num_leds)391 static int lp50xx_probe_leds(struct fwnode_handle *child, struct lp50xx *priv,
392 struct lp50xx_led *led, int num_leds)
393 {
394 u32 led_banks[LP5036_MAX_LED_MODULES] = {0};
395 int led_number;
396 int ret;
397
398 if (num_leds > 1) {
399 if (num_leds > priv->chip_info->max_modules) {
400 dev_err(priv->dev, "reg property is invalid\n");
401 return -EINVAL;
402 }
403
404 ret = fwnode_property_read_u32_array(child, "reg", led_banks, num_leds);
405 if (ret) {
406 dev_err(priv->dev, "reg property is missing\n");
407 return ret;
408 }
409
410 ret = lp50xx_set_banks(priv, led_banks);
411 if (ret) {
412 dev_err(priv->dev, "Cannot setup banked LEDs\n");
413 return ret;
414 }
415
416 led->ctrl_bank_enabled = 1;
417 } else {
418 ret = fwnode_property_read_u32(child, "reg", &led_number);
419 if (ret) {
420 dev_err(priv->dev, "led reg property missing\n");
421 return ret;
422 }
423
424 if (led_number > priv->chip_info->num_leds) {
425 dev_err(priv->dev, "led-sources property is invalid\n");
426 return -EINVAL;
427 }
428
429 led->led_number = led_number;
430 }
431
432 return 0;
433 }
434
lp50xx_probe_dt(struct lp50xx * priv)435 static int lp50xx_probe_dt(struct lp50xx *priv)
436 {
437 struct fwnode_handle *child = NULL;
438 struct fwnode_handle *led_node = NULL;
439 struct led_init_data init_data = {};
440 struct led_classdev *led_cdev;
441 struct mc_subled *mc_led_info;
442 struct lp50xx_led *led;
443 int ret = -EINVAL;
444 int num_colors;
445 u32 color_id;
446 int i = 0;
447
448 priv->enable_gpio = devm_gpiod_get_optional(priv->dev, "enable", GPIOD_OUT_LOW);
449 if (IS_ERR(priv->enable_gpio))
450 return dev_err_probe(priv->dev, PTR_ERR(priv->enable_gpio),
451 "Failed to get enable GPIO\n");
452
453 priv->regulator = devm_regulator_get(priv->dev, "vled");
454 if (IS_ERR(priv->regulator))
455 priv->regulator = NULL;
456
457 device_for_each_child_node(priv->dev, child) {
458 led = &priv->leds[i];
459 ret = fwnode_property_count_u32(child, "reg");
460 if (ret < 0) {
461 dev_err(priv->dev, "reg property is invalid\n");
462 goto child_out;
463 }
464
465 ret = lp50xx_probe_leds(child, priv, led, ret);
466 if (ret)
467 goto child_out;
468
469 init_data.fwnode = child;
470 num_colors = 0;
471
472 /*
473 * There are only 3 LEDs per module otherwise they should be
474 * banked which also is presented as 3 LEDs.
475 */
476 mc_led_info = devm_kcalloc(priv->dev, LP50XX_LEDS_PER_MODULE,
477 sizeof(*mc_led_info), GFP_KERNEL);
478 if (!mc_led_info) {
479 ret = -ENOMEM;
480 goto child_out;
481 }
482
483 fwnode_for_each_child_node(child, led_node) {
484 ret = fwnode_property_read_u32(led_node, "color",
485 &color_id);
486 if (ret) {
487 fwnode_handle_put(led_node);
488 dev_err(priv->dev, "Cannot read color\n");
489 goto child_out;
490 }
491
492 mc_led_info[num_colors].color_index = color_id;
493 num_colors++;
494 }
495
496 led->priv = priv;
497 led->mc_cdev.num_colors = num_colors;
498 led->mc_cdev.subled_info = mc_led_info;
499 led_cdev = &led->mc_cdev.led_cdev;
500 led_cdev->brightness_set_blocking = lp50xx_brightness_set;
501
502 ret = devm_led_classdev_multicolor_register_ext(priv->dev,
503 &led->mc_cdev,
504 &init_data);
505 if (ret) {
506 dev_err(priv->dev, "led register err: %d\n", ret);
507 goto child_out;
508 }
509 i++;
510 }
511
512 return 0;
513
514 child_out:
515 fwnode_handle_put(child);
516 return ret;
517 }
518
lp50xx_probe(struct i2c_client * client)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
lp50xx_remove(struct i2c_client * client)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