blob: 66126d0666f5bfd3b5833cf9ab0f7aab7aa8695c [file] [log] [blame]
Dan Murphy43d20ff2018-07-02 13:12:13 -05001// SPDX-License-Identifier: GPL-2.0
2// TI LM3692x LED chip family driver
Alexander A. Klimovc5437332020-07-13 16:51:15 +02003// Copyright (C) 2017-18 Texas Instruments Incorporated - https://www.ti.com/
Dan Murphy9699cb62017-12-12 12:15:50 -06004
5#include <linux/gpio/consumer.h>
6#include <linux/i2c.h>
7#include <linux/init.h>
8#include <linux/leds.h>
Guido Güntherdf7083b2020-01-06 16:48:50 +01009#include <linux/log2.h>
Andy Shevchenko690e4f32021-05-29 14:19:30 +030010#include <linux/mod_devicetable.h>
Dan Murphy9699cb62017-12-12 12:15:50 -060011#include <linux/module.h>
12#include <linux/mutex.h>
Dan Murphy9699cb62017-12-12 12:15:50 -060013#include <linux/regmap.h>
14#include <linux/regulator/consumer.h>
15#include <linux/slab.h>
Dan Murphy9699cb62017-12-12 12:15:50 -060016
Dan Murphy07abd432018-07-02 13:12:16 -050017#define LM36922_MODEL 0
18#define LM36923_MODEL 1
19
Dan Murphy9699cb62017-12-12 12:15:50 -060020#define LM3692X_REV 0x0
21#define LM3692X_RESET 0x1
22#define LM3692X_EN 0x10
23#define LM3692X_BRT_CTRL 0x11
24#define LM3692X_PWM_CTRL 0x12
25#define LM3692X_BOOST_CTRL 0x13
26#define LM3692X_AUTO_FREQ_HI 0x15
27#define LM3692X_AUTO_FREQ_LO 0x16
28#define LM3692X_BL_ADJ_THRESH 0x17
29#define LM3692X_BRT_LSB 0x18
30#define LM3692X_BRT_MSB 0x19
31#define LM3692X_FAULT_CTRL 0x1e
32#define LM3692X_FAULT_FLAGS 0x1f
33
34#define LM3692X_SW_RESET BIT(0)
35#define LM3692X_DEVICE_EN BIT(0)
36#define LM3692X_LED1_EN BIT(1)
37#define LM3692X_LED2_EN BIT(2)
Dan Murphy07abd432018-07-02 13:12:16 -050038#define LM36923_LED3_EN BIT(3)
39#define LM3692X_ENABLE_MASK (LM3692X_DEVICE_EN | LM3692X_LED1_EN | \
40 LM3692X_LED2_EN | LM36923_LED3_EN)
Dan Murphy9699cb62017-12-12 12:15:50 -060041
42/* Brightness Control Bits */
43#define LM3692X_BL_ADJ_POL BIT(0)
44#define LM3692X_RAMP_RATE_125us 0x00
45#define LM3692X_RAMP_RATE_250us BIT(1)
46#define LM3692X_RAMP_RATE_500us BIT(2)
47#define LM3692X_RAMP_RATE_1ms (BIT(1) | BIT(2))
48#define LM3692X_RAMP_RATE_2ms BIT(3)
49#define LM3692X_RAMP_RATE_4ms (BIT(3) | BIT(1))
50#define LM3692X_RAMP_RATE_8ms (BIT(2) | BIT(3))
51#define LM3692X_RAMP_RATE_16ms (BIT(1) | BIT(2) | BIT(3))
52#define LM3692X_RAMP_EN BIT(4)
53#define LM3692X_BRHT_MODE_REG 0x00
54#define LM3692X_BRHT_MODE_PWM BIT(5)
55#define LM3692X_BRHT_MODE_MULTI_RAMP BIT(6)
56#define LM3692X_BRHT_MODE_RAMP_MULTI (BIT(5) | BIT(6))
57#define LM3692X_MAP_MODE_EXP BIT(7)
58
59/* PWM Register Bits */
60#define LM3692X_PWM_FILTER_100 BIT(0)
61#define LM3692X_PWM_FILTER_150 BIT(1)
62#define LM3692X_PWM_FILTER_200 (BIT(0) | BIT(1))
63#define LM3692X_PWM_HYSTER_1LSB BIT(2)
64#define LM3692X_PWM_HYSTER_2LSB BIT(3)
65#define LM3692X_PWM_HYSTER_3LSB (BIT(3) | BIT(2))
66#define LM3692X_PWM_HYSTER_4LSB BIT(4)
67#define LM3692X_PWM_HYSTER_5LSB (BIT(4) | BIT(2))
68#define LM3692X_PWM_HYSTER_6LSB (BIT(4) | BIT(3))
69#define LM3692X_PWM_POLARITY BIT(5)
70#define LM3692X_PWM_SAMP_4MHZ BIT(6)
71#define LM3692X_PWM_SAMP_24MHZ BIT(7)
72
73/* Boost Control Bits */
74#define LM3692X_OCP_PROT_1A BIT(0)
75#define LM3692X_OCP_PROT_1_25A BIT(1)
76#define LM3692X_OCP_PROT_1_5A (BIT(0) | BIT(1))
77#define LM3692X_OVP_21V BIT(2)
78#define LM3692X_OVP_25V BIT(3)
79#define LM3692X_OVP_29V (BIT(2) | BIT(3))
80#define LM3692X_MIN_IND_22UH BIT(4)
81#define LM3692X_BOOST_SW_1MHZ BIT(5)
82#define LM3692X_BOOST_SW_NO_SHIFT BIT(6)
83
84/* Fault Control Bits */
85#define LM3692X_FAULT_CTRL_OVP BIT(0)
86#define LM3692X_FAULT_CTRL_OCP BIT(1)
87#define LM3692X_FAULT_CTRL_TSD BIT(2)
88#define LM3692X_FAULT_CTRL_OPEN BIT(3)
89
90/* Fault Flag Bits */
91#define LM3692X_FAULT_FLAG_OVP BIT(0)
92#define LM3692X_FAULT_FLAG_OCP BIT(1)
93#define LM3692X_FAULT_FLAG_TSD BIT(2)
94#define LM3692X_FAULT_FLAG_SHRT BIT(3)
95#define LM3692X_FAULT_FLAG_OPEN BIT(4)
96
97/**
Lee Jones406a0c22021-05-28 10:06:24 +010098 * struct lm3692x_led
99 * @lock: Lock for reading/writing the device
100 * @client: Pointer to the I2C client
101 * @led_dev: LED class device pointer
102 * @regmap: Devices register map
103 * @enable_gpio: VDDIO/EN gpio to enable communication interface
104 * @regulator: LED supply regulator pointer
105 * @led_enable: LED sync to be enabled
106 * @model_id: Current device model ID enumerated
Dan Murphy9699cb62017-12-12 12:15:50 -0600107 */
108struct lm3692x_led {
109 struct mutex lock;
110 struct i2c_client *client;
111 struct led_classdev led_dev;
112 struct regmap *regmap;
113 struct gpio_desc *enable_gpio;
114 struct regulator *regulator;
Dan Murphy07abd432018-07-02 13:12:16 -0500115 int led_enable;
116 int model_id;
Guido Günthercffd61a2020-01-04 11:54:18 +0100117
Guido Günther260718b2020-01-06 16:48:53 +0100118 u8 boost_ctrl, brightness_ctrl;
119 bool enabled;
Dan Murphy9699cb62017-12-12 12:15:50 -0600120};
121
122static const struct reg_default lm3692x_reg_defs[] = {
123 {LM3692X_EN, 0xf},
124 {LM3692X_BRT_CTRL, 0x61},
125 {LM3692X_PWM_CTRL, 0x73},
126 {LM3692X_BOOST_CTRL, 0x6f},
127 {LM3692X_AUTO_FREQ_HI, 0x0},
128 {LM3692X_AUTO_FREQ_LO, 0x0},
129 {LM3692X_BL_ADJ_THRESH, 0x0},
130 {LM3692X_BRT_LSB, 0x7},
131 {LM3692X_BRT_MSB, 0xff},
132 {LM3692X_FAULT_CTRL, 0x7},
133};
134
135static const struct regmap_config lm3692x_regmap_config = {
136 .reg_bits = 8,
137 .val_bits = 8,
138
139 .max_register = LM3692X_FAULT_FLAGS,
140 .reg_defaults = lm3692x_reg_defs,
141 .num_reg_defaults = ARRAY_SIZE(lm3692x_reg_defs),
142 .cache_type = REGCACHE_RBTREE,
143};
144
145static int lm3692x_fault_check(struct lm3692x_led *led)
146{
147 int ret;
148 unsigned int read_buf;
149
150 ret = regmap_read(led->regmap, LM3692X_FAULT_FLAGS, &read_buf);
151 if (ret)
152 return ret;
153
154 if (read_buf)
155 dev_err(&led->client->dev, "Detected a fault 0x%X\n", read_buf);
156
157 /* The first read may clear the fault. Check again to see if the fault
158 * still exits and return that value.
159 */
160 regmap_read(led->regmap, LM3692X_FAULT_FLAGS, &read_buf);
161 if (read_buf)
162 dev_err(&led->client->dev, "Second read of fault flags 0x%X\n",
163 read_buf);
164
165 return read_buf;
166}
167
Guido Günther5e9d7b62020-01-06 16:48:51 +0100168static int lm3692x_leds_enable(struct lm3692x_led *led)
Dan Murphy9699cb62017-12-12 12:15:50 -0600169{
Dan Murphy07abd432018-07-02 13:12:16 -0500170 int enable_state;
Guido Güntherd0f9cc42019-09-21 14:12:09 -0700171 int ret, reg_ret;
Dan Murphy9699cb62017-12-12 12:15:50 -0600172
Guido Günther260718b2020-01-06 16:48:53 +0100173 if (led->enabled)
174 return 0;
175
Dan Murphy9699cb62017-12-12 12:15:50 -0600176 if (led->regulator) {
177 ret = regulator_enable(led->regulator);
178 if (ret) {
179 dev_err(&led->client->dev,
Guido Günther1051da22019-09-21 14:12:08 -0700180 "Failed to enable regulator: %d\n", ret);
Dan Murphy9699cb62017-12-12 12:15:50 -0600181 return ret;
182 }
183 }
184
185 if (led->enable_gpio)
186 gpiod_direction_output(led->enable_gpio, 1);
187
188 ret = lm3692x_fault_check(led);
189 if (ret) {
Guido Günther1051da22019-09-21 14:12:08 -0700190 dev_err(&led->client->dev, "Cannot read/clear faults: %d\n",
191 ret);
Dan Murphy9699cb62017-12-12 12:15:50 -0600192 goto out;
193 }
194
195 ret = regmap_write(led->regmap, LM3692X_BRT_CTRL, 0x00);
196 if (ret)
197 goto out;
198
199 /*
200 * For glitch free operation, the following data should
Dan Murphy07abd432018-07-02 13:12:16 -0500201 * only be written while LEDx enable bits are 0 and the device enable
202 * bit is set to 1.
Dan Murphy9699cb62017-12-12 12:15:50 -0600203 * per Section 7.5.14 of the data sheet
204 */
Dan Murphy07abd432018-07-02 13:12:16 -0500205 ret = regmap_write(led->regmap, LM3692X_EN, LM3692X_DEVICE_EN);
206 if (ret)
207 goto out;
208
209 /* Set the brightness to 0 so when enabled the LEDs do not come
210 * on with full brightness.
211 */
212 ret = regmap_write(led->regmap, LM3692X_BRT_MSB, 0);
213 if (ret)
214 goto out;
215
216 ret = regmap_write(led->regmap, LM3692X_BRT_LSB, 0);
217 if (ret)
218 goto out;
219
Dan Murphy9699cb62017-12-12 12:15:50 -0600220 ret = regmap_write(led->regmap, LM3692X_PWM_CTRL,
221 LM3692X_PWM_FILTER_100 | LM3692X_PWM_SAMP_24MHZ);
222 if (ret)
223 goto out;
224
Guido Günthercffd61a2020-01-04 11:54:18 +0100225 ret = regmap_write(led->regmap, LM3692X_BOOST_CTRL, led->boost_ctrl);
Dan Murphy9699cb62017-12-12 12:15:50 -0600226 if (ret)
227 goto out;
228
229 ret = regmap_write(led->regmap, LM3692X_AUTO_FREQ_HI, 0x00);
230 if (ret)
231 goto out;
232
233 ret = regmap_write(led->regmap, LM3692X_AUTO_FREQ_LO, 0x00);
234 if (ret)
235 goto out;
236
237 ret = regmap_write(led->regmap, LM3692X_BL_ADJ_THRESH, 0x00);
238 if (ret)
239 goto out;
240
241 ret = regmap_write(led->regmap, LM3692X_BRT_CTRL,
Guido Güntherda61a662019-09-21 14:12:12 -0700242 LM3692X_BL_ADJ_POL | LM3692X_RAMP_EN);
Dan Murphy9699cb62017-12-12 12:15:50 -0600243 if (ret)
244 goto out;
245
Dan Murphy07abd432018-07-02 13:12:16 -0500246 switch (led->led_enable) {
247 case 0:
248 default:
249 if (led->model_id == LM36923_MODEL)
250 enable_state = LM3692X_LED1_EN | LM3692X_LED2_EN |
251 LM36923_LED3_EN;
252 else
253 enable_state = LM3692X_LED1_EN | LM3692X_LED2_EN;
254
255 break;
256 case 1:
257 enable_state = LM3692X_LED1_EN;
258 break;
259 case 2:
260 enable_state = LM3692X_LED2_EN;
261 break;
262
263 case 3:
264 if (led->model_id == LM36923_MODEL) {
265 enable_state = LM36923_LED3_EN;
266 break;
267 }
268
269 ret = -EINVAL;
270 dev_err(&led->client->dev,
271 "LED3 sync not available on this device\n");
272 goto out;
273 }
274
275 ret = regmap_update_bits(led->regmap, LM3692X_EN, LM3692X_ENABLE_MASK,
276 enable_state | LM3692X_DEVICE_EN);
277
Guido Günther260718b2020-01-06 16:48:53 +0100278 led->enabled = true;
Dan Murphy9699cb62017-12-12 12:15:50 -0600279 return ret;
280out:
281 dev_err(&led->client->dev, "Fail writing initialization values\n");
282
283 if (led->enable_gpio)
284 gpiod_direction_output(led->enable_gpio, 0);
285
286 if (led->regulator) {
Guido Güntherd0f9cc42019-09-21 14:12:09 -0700287 reg_ret = regulator_disable(led->regulator);
288 if (reg_ret)
Dan Murphy9699cb62017-12-12 12:15:50 -0600289 dev_err(&led->client->dev,
Guido Güntherd0f9cc42019-09-21 14:12:09 -0700290 "Failed to disable regulator: %d\n", reg_ret);
Dan Murphy9699cb62017-12-12 12:15:50 -0600291 }
292
293 return ret;
294}
Guido Güntherd0f9cc42019-09-21 14:12:09 -0700295
Guido Günther4a8d2be2020-01-06 16:48:52 +0100296static int lm3692x_leds_disable(struct lm3692x_led *led)
297{
298 int ret;
299
Guido Günther260718b2020-01-06 16:48:53 +0100300 if (!led->enabled)
301 return 0;
302
Guido Günther4a8d2be2020-01-06 16:48:52 +0100303 ret = regmap_update_bits(led->regmap, LM3692X_EN, LM3692X_DEVICE_EN, 0);
304 if (ret) {
305 dev_err(&led->client->dev, "Failed to disable regulator: %d\n",
306 ret);
307 return ret;
308 }
309
310 if (led->enable_gpio)
311 gpiod_direction_output(led->enable_gpio, 0);
312
313 if (led->regulator) {
314 ret = regulator_disable(led->regulator);
315 if (ret)
316 dev_err(&led->client->dev,
317 "Failed to disable regulator: %d\n", ret);
318 }
319
Guido Günther260718b2020-01-06 16:48:53 +0100320 led->enabled = false;
Guido Günther4a8d2be2020-01-06 16:48:52 +0100321 return ret;
322}
323
Guido Günther5e9d7b62020-01-06 16:48:51 +0100324static int lm3692x_brightness_set(struct led_classdev *led_cdev,
325 enum led_brightness brt_val)
326{
327 struct lm3692x_led *led =
328 container_of(led_cdev, struct lm3692x_led, led_dev);
329 int ret;
330 int led_brightness_lsb = (brt_val >> 5);
331
332 mutex_lock(&led->lock);
333
Guido Günther260718b2020-01-06 16:48:53 +0100334 if (brt_val == 0) {
335 ret = lm3692x_leds_disable(led);
336 goto out;
337 } else {
338 lm3692x_leds_enable(led);
339 }
340
Guido Günther5e9d7b62020-01-06 16:48:51 +0100341 ret = lm3692x_fault_check(led);
342 if (ret) {
343 dev_err(&led->client->dev, "Cannot read/clear faults: %d\n",
344 ret);
345 goto out;
346 }
347
348 ret = regmap_write(led->regmap, LM3692X_BRT_MSB, brt_val);
349 if (ret) {
350 dev_err(&led->client->dev, "Cannot write MSB: %d\n", ret);
351 goto out;
352 }
353
354 ret = regmap_write(led->regmap, LM3692X_BRT_LSB, led_brightness_lsb);
355 if (ret) {
356 dev_err(&led->client->dev, "Cannot write LSB: %d\n", ret);
357 goto out;
358 }
359out:
360 mutex_unlock(&led->lock);
361 return ret;
362}
363
Guido Güntherdf7083b2020-01-06 16:48:50 +0100364static enum led_brightness lm3692x_max_brightness(struct lm3692x_led *led,
365 u32 max_cur)
366{
367 u32 max_code;
368
369 /* see p.12 of LM36922 data sheet for brightness formula */
370 max_code = ((max_cur * 1000) - 37806) / 12195;
371 if (max_code > 0x7FF)
372 max_code = 0x7FF;
373
374 return max_code >> 3;
375}
376
Dan Murphy07abd432018-07-02 13:12:16 -0500377static int lm3692x_probe_dt(struct lm3692x_led *led)
Dan Murphy9699cb62017-12-12 12:15:50 -0600378{
Dan Murphy9a5c1c62018-07-02 13:12:14 -0500379 struct fwnode_handle *child = NULL;
Jacek Anaszewskia50ff282019-06-09 20:19:04 +0200380 struct led_init_data init_data = {};
Guido Güntherdf7083b2020-01-06 16:48:50 +0100381 u32 ovp, max_cur;
Dan Murphy9a5c1c62018-07-02 13:12:14 -0500382 int ret;
Dan Murphy9699cb62017-12-12 12:15:50 -0600383
Dan Murphy07abd432018-07-02 13:12:16 -0500384 led->enable_gpio = devm_gpiod_get_optional(&led->client->dev,
Dan Murphy9699cb62017-12-12 12:15:50 -0600385 "enable", GPIOD_OUT_LOW);
386 if (IS_ERR(led->enable_gpio)) {
387 ret = PTR_ERR(led->enable_gpio);
Dan Murphy07abd432018-07-02 13:12:16 -0500388 dev_err(&led->client->dev, "Failed to get enable gpio: %d\n",
Dan Murphy9699cb62017-12-12 12:15:50 -0600389 ret);
390 return ret;
391 }
392
Guido Günther396128d2019-09-21 14:12:10 -0700393 led->regulator = devm_regulator_get_optional(&led->client->dev, "vled");
394 if (IS_ERR(led->regulator)) {
395 ret = PTR_ERR(led->regulator);
Krzysztof Kozlowski47eaa8b2020-08-26 16:50:10 +0200396 if (ret != -ENODEV)
397 return dev_err_probe(&led->client->dev, ret,
398 "Failed to get vled regulator\n");
399
Dan Murphy07abd432018-07-02 13:12:16 -0500400 led->regulator = NULL;
Guido Günther396128d2019-09-21 14:12:10 -0700401 }
Dan Murphy9699cb62017-12-12 12:15:50 -0600402
Guido Günthercffd61a2020-01-04 11:54:18 +0100403 led->boost_ctrl = LM3692X_BOOST_SW_1MHZ |
404 LM3692X_BOOST_SW_NO_SHIFT |
405 LM3692X_OCP_PROT_1_5A;
406 ret = device_property_read_u32(&led->client->dev,
407 "ti,ovp-microvolt", &ovp);
408 if (ret) {
409 led->boost_ctrl |= LM3692X_OVP_29V;
410 } else {
411 switch (ovp) {
412 case 17000000:
413 break;
414 case 21000000:
415 led->boost_ctrl |= LM3692X_OVP_21V;
416 break;
417 case 25000000:
418 led->boost_ctrl |= LM3692X_OVP_25V;
419 break;
420 case 29000000:
421 led->boost_ctrl |= LM3692X_OVP_29V;
422 break;
423 default:
424 dev_err(&led->client->dev, "Invalid OVP %d\n", ovp);
425 return -EINVAL;
426 }
427 }
428
Dan Murphy9a5c1c62018-07-02 13:12:14 -0500429 child = device_get_next_child_node(&led->client->dev, child);
430 if (!child) {
431 dev_err(&led->client->dev, "No LED Child node\n");
Dan Murphy07abd432018-07-02 13:12:16 -0500432 return -ENODEV;
Dan Murphy9a5c1c62018-07-02 13:12:14 -0500433 }
434
Dan Murphy07abd432018-07-02 13:12:16 -0500435 ret = fwnode_property_read_u32(child, "reg", &led->led_enable);
Dan Murphy9699cb62017-12-12 12:15:50 -0600436 if (ret) {
Andy Shevchenkof55db1c2021-05-10 12:50:35 +0300437 fwnode_handle_put(child);
Dan Murphy07abd432018-07-02 13:12:16 -0500438 dev_err(&led->client->dev, "reg DT property missing\n");
Dan Murphy9699cb62017-12-12 12:15:50 -0600439 return ret;
440 }
441
Guido Güntherdf7083b2020-01-06 16:48:50 +0100442 ret = fwnode_property_read_u32(child, "led-max-microamp", &max_cur);
443 led->led_dev.max_brightness = ret ? LED_FULL :
444 lm3692x_max_brightness(led, max_cur);
445
Jacek Anaszewskia50ff282019-06-09 20:19:04 +0200446 init_data.fwnode = child;
447 init_data.devicename = led->client->name;
448 init_data.default_label = ":";
Dan Murphy07abd432018-07-02 13:12:16 -0500449
Jacek Anaszewskia50ff282019-06-09 20:19:04 +0200450 ret = devm_led_classdev_register_ext(&led->client->dev, &led->led_dev,
451 &init_data);
Andy Shevchenkof55db1c2021-05-10 12:50:35 +0300452 if (ret)
Dan Murphy07abd432018-07-02 13:12:16 -0500453 dev_err(&led->client->dev, "led register err: %d\n", ret);
Dan Murphy07abd432018-07-02 13:12:16 -0500454
Andy Shevchenkof55db1c2021-05-10 12:50:35 +0300455 fwnode_handle_put(init_data.fwnode);
456 return ret;
Dan Murphy07abd432018-07-02 13:12:16 -0500457}
458
Uwe Kleine-König4d7b4de2022-11-18 23:40:09 +0100459static int lm3692x_probe(struct i2c_client *client)
Dan Murphy07abd432018-07-02 13:12:16 -0500460{
Uwe Kleine-König4d7b4de2022-11-18 23:40:09 +0100461 const struct i2c_device_id *id = i2c_client_get_device_id(client);
Dan Murphy07abd432018-07-02 13:12:16 -0500462 struct lm3692x_led *led;
463 int ret;
464
465 led = devm_kzalloc(&client->dev, sizeof(*led), GFP_KERNEL);
466 if (!led)
467 return -ENOMEM;
468
469 mutex_init(&led->lock);
470 led->client = client;
471 led->led_dev.brightness_set_blocking = lm3692x_brightness_set;
472 led->model_id = id->driver_data;
473 i2c_set_clientdata(client, led);
474
475 led->regmap = devm_regmap_init_i2c(client, &lm3692x_regmap_config);
476 if (IS_ERR(led->regmap)) {
477 ret = PTR_ERR(led->regmap);
478 dev_err(&client->dev, "Failed to allocate register map: %d\n",
479 ret);
480 return ret;
481 }
482
483 ret = lm3692x_probe_dt(led);
484 if (ret)
485 return ret;
486
Guido Günther5e9d7b62020-01-06 16:48:51 +0100487 ret = lm3692x_leds_enable(led);
Dan Murphy07abd432018-07-02 13:12:16 -0500488 if (ret)
489 return ret;
490
Dan Murphy9699cb62017-12-12 12:15:50 -0600491 return 0;
492}
493
Uwe Kleine-Königed5c2f52022-08-15 10:02:30 +0200494static void lm3692x_remove(struct i2c_client *client)
Dan Murphy9699cb62017-12-12 12:15:50 -0600495{
496 struct lm3692x_led *led = i2c_get_clientdata(client);
Dan Murphy9699cb62017-12-12 12:15:50 -0600497
Uwe Kleine-Königcf642fa2022-02-06 23:08:12 +0100498 lm3692x_leds_disable(led);
Dan Murphy9699cb62017-12-12 12:15:50 -0600499 mutex_destroy(&led->lock);
Dan Murphy9699cb62017-12-12 12:15:50 -0600500}
501
502static const struct i2c_device_id lm3692x_id[] = {
Dan Murphy07abd432018-07-02 13:12:16 -0500503 { "lm36922", LM36922_MODEL },
504 { "lm36923", LM36923_MODEL },
Dan Murphy9699cb62017-12-12 12:15:50 -0600505 { }
506};
507MODULE_DEVICE_TABLE(i2c, lm3692x_id);
508
509static const struct of_device_id of_lm3692x_leds_match[] = {
510 { .compatible = "ti,lm36922", },
511 { .compatible = "ti,lm36923", },
512 {},
513};
514MODULE_DEVICE_TABLE(of, of_lm3692x_leds_match);
515
516static struct i2c_driver lm3692x_driver = {
517 .driver = {
518 .name = "lm3692x",
519 .of_match_table = of_lm3692x_leds_match,
520 },
Uwe Kleine-König4d7b4de2022-11-18 23:40:09 +0100521 .probe_new = lm3692x_probe,
Dan Murphy9699cb62017-12-12 12:15:50 -0600522 .remove = lm3692x_remove,
523 .id_table = lm3692x_id,
524};
525module_i2c_driver(lm3692x_driver);
526
527MODULE_DESCRIPTION("Texas Instruments LM3692X LED driver");
528MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
529MODULE_LICENSE("GPL v2");