Back to home page

OSCL-LXR
 
 

     

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * LP5562 LED driver
0004  *
0005  * Copyright (C) 2013 Texas Instruments
0006  *
0007  * Author: Milo(Woogyom) Kim <milo.kim@ti.com>
0008  */
0009 
0010 #include <linux/delay.h>
0011 #include <linux/firmware.h>
0012 #include <linux/i2c.h>
0013 #include <linux/leds.h>
0014 #include <linux/module.h>
0015 #include <linux/mutex.h>
0016 #include <linux/of.h>
0017 #include <linux/platform_data/leds-lp55xx.h>
0018 #include <linux/slab.h>
0019 
0020 #include "leds-lp55xx-common.h"
0021 
0022 #define LP5562_PROGRAM_LENGTH       32
0023 #define LP5562_MAX_LEDS         4
0024 
0025 /* ENABLE Register 00h */
0026 #define LP5562_REG_ENABLE       0x00
0027 #define LP5562_EXEC_ENG1_M      0x30
0028 #define LP5562_EXEC_ENG2_M      0x0C
0029 #define LP5562_EXEC_ENG3_M      0x03
0030 #define LP5562_EXEC_M           0x3F
0031 #define LP5562_MASTER_ENABLE        0x40    /* Chip master enable */
0032 #define LP5562_LOGARITHMIC_PWM      0x80    /* Logarithmic PWM adjustment */
0033 #define LP5562_EXEC_RUN         0x2A
0034 #define LP5562_ENABLE_DEFAULT   \
0035     (LP5562_MASTER_ENABLE | LP5562_LOGARITHMIC_PWM)
0036 #define LP5562_ENABLE_RUN_PROGRAM   \
0037     (LP5562_ENABLE_DEFAULT | LP5562_EXEC_RUN)
0038 
0039 /* OPMODE Register 01h */
0040 #define LP5562_REG_OP_MODE      0x01
0041 #define LP5562_MODE_ENG1_M      0x30
0042 #define LP5562_MODE_ENG2_M      0x0C
0043 #define LP5562_MODE_ENG3_M      0x03
0044 #define LP5562_LOAD_ENG1        0x10
0045 #define LP5562_LOAD_ENG2        0x04
0046 #define LP5562_LOAD_ENG3        0x01
0047 #define LP5562_RUN_ENG1         0x20
0048 #define LP5562_RUN_ENG2         0x08
0049 #define LP5562_RUN_ENG3         0x02
0050 #define LP5562_ENG1_IS_LOADING(mode)    \
0051     ((mode & LP5562_MODE_ENG1_M) == LP5562_LOAD_ENG1)
0052 #define LP5562_ENG2_IS_LOADING(mode)    \
0053     ((mode & LP5562_MODE_ENG2_M) == LP5562_LOAD_ENG2)
0054 #define LP5562_ENG3_IS_LOADING(mode)    \
0055     ((mode & LP5562_MODE_ENG3_M) == LP5562_LOAD_ENG3)
0056 
0057 /* BRIGHTNESS Registers */
0058 #define LP5562_REG_R_PWM        0x04
0059 #define LP5562_REG_G_PWM        0x03
0060 #define LP5562_REG_B_PWM        0x02
0061 #define LP5562_REG_W_PWM        0x0E
0062 
0063 /* CURRENT Registers */
0064 #define LP5562_REG_R_CURRENT        0x07
0065 #define LP5562_REG_G_CURRENT        0x06
0066 #define LP5562_REG_B_CURRENT        0x05
0067 #define LP5562_REG_W_CURRENT        0x0F
0068 
0069 /* CONFIG Register 08h */
0070 #define LP5562_REG_CONFIG       0x08
0071 #define LP5562_PWM_HF           0x40
0072 #define LP5562_PWRSAVE_EN       0x20
0073 #define LP5562_CLK_INT          0x01    /* Internal clock */
0074 #define LP5562_DEFAULT_CFG      (LP5562_PWM_HF | LP5562_PWRSAVE_EN)
0075 
0076 /* RESET Register 0Dh */
0077 #define LP5562_REG_RESET        0x0D
0078 #define LP5562_RESET            0xFF
0079 
0080 /* PROGRAM ENGINE Registers */
0081 #define LP5562_REG_PROG_MEM_ENG1    0x10
0082 #define LP5562_REG_PROG_MEM_ENG2    0x30
0083 #define LP5562_REG_PROG_MEM_ENG3    0x50
0084 
0085 /* LEDMAP Register 70h */
0086 #define LP5562_REG_ENG_SEL      0x70
0087 #define LP5562_ENG_SEL_PWM      0
0088 #define LP5562_ENG_FOR_RGB_M        0x3F
0089 #define LP5562_ENG_SEL_RGB      0x1B    /* R:ENG1, G:ENG2, B:ENG3 */
0090 #define LP5562_ENG_FOR_W_M      0xC0
0091 #define LP5562_ENG1_FOR_W       0x40    /* W:ENG1 */
0092 #define LP5562_ENG2_FOR_W       0x80    /* W:ENG2 */
0093 #define LP5562_ENG3_FOR_W       0xC0    /* W:ENG3 */
0094 
0095 /* Program Commands */
0096 #define LP5562_CMD_DISABLE      0x00
0097 #define LP5562_CMD_LOAD         0x15
0098 #define LP5562_CMD_RUN          0x2A
0099 #define LP5562_CMD_DIRECT       0x3F
0100 #define LP5562_PATTERN_OFF      0
0101 
0102 static inline void lp5562_wait_opmode_done(void)
0103 {
0104     /* operation mode change needs to be longer than 153 us */
0105     usleep_range(200, 300);
0106 }
0107 
0108 static inline void lp5562_wait_enable_done(void)
0109 {
0110     /* it takes more 488 us to update ENABLE register */
0111     usleep_range(500, 600);
0112 }
0113 
0114 static void lp5562_set_led_current(struct lp55xx_led *led, u8 led_current)
0115 {
0116     static const u8 addr[] = {
0117         LP5562_REG_R_CURRENT,
0118         LP5562_REG_G_CURRENT,
0119         LP5562_REG_B_CURRENT,
0120         LP5562_REG_W_CURRENT,
0121     };
0122 
0123     led->led_current = led_current;
0124     lp55xx_write(led->chip, addr[led->chan_nr], led_current);
0125 }
0126 
0127 static void lp5562_load_engine(struct lp55xx_chip *chip)
0128 {
0129     enum lp55xx_engine_index idx = chip->engine_idx;
0130     static const u8 mask[] = {
0131         [LP55XX_ENGINE_1] = LP5562_MODE_ENG1_M,
0132         [LP55XX_ENGINE_2] = LP5562_MODE_ENG2_M,
0133         [LP55XX_ENGINE_3] = LP5562_MODE_ENG3_M,
0134     };
0135 
0136     static const u8 val[] = {
0137         [LP55XX_ENGINE_1] = LP5562_LOAD_ENG1,
0138         [LP55XX_ENGINE_2] = LP5562_LOAD_ENG2,
0139         [LP55XX_ENGINE_3] = LP5562_LOAD_ENG3,
0140     };
0141 
0142     lp55xx_update_bits(chip, LP5562_REG_OP_MODE, mask[idx], val[idx]);
0143 
0144     lp5562_wait_opmode_done();
0145 }
0146 
0147 static void lp5562_stop_engine(struct lp55xx_chip *chip)
0148 {
0149     lp55xx_write(chip, LP5562_REG_OP_MODE, LP5562_CMD_DISABLE);
0150     lp5562_wait_opmode_done();
0151 }
0152 
0153 static void lp5562_run_engine(struct lp55xx_chip *chip, bool start)
0154 {
0155     int ret;
0156     u8 mode;
0157     u8 exec;
0158 
0159     /* stop engine */
0160     if (!start) {
0161         lp55xx_write(chip, LP5562_REG_ENABLE, LP5562_ENABLE_DEFAULT);
0162         lp5562_wait_enable_done();
0163         lp5562_stop_engine(chip);
0164         lp55xx_write(chip, LP5562_REG_ENG_SEL, LP5562_ENG_SEL_PWM);
0165         lp55xx_write(chip, LP5562_REG_OP_MODE, LP5562_CMD_DIRECT);
0166         lp5562_wait_opmode_done();
0167         return;
0168     }
0169 
0170     /*
0171      * To run the engine,
0172      * operation mode and enable register should updated at the same time
0173      */
0174 
0175     ret = lp55xx_read(chip, LP5562_REG_OP_MODE, &mode);
0176     if (ret)
0177         return;
0178 
0179     ret = lp55xx_read(chip, LP5562_REG_ENABLE, &exec);
0180     if (ret)
0181         return;
0182 
0183     /* change operation mode to RUN only when each engine is loading */
0184     if (LP5562_ENG1_IS_LOADING(mode)) {
0185         mode = (mode & ~LP5562_MODE_ENG1_M) | LP5562_RUN_ENG1;
0186         exec = (exec & ~LP5562_EXEC_ENG1_M) | LP5562_RUN_ENG1;
0187     }
0188 
0189     if (LP5562_ENG2_IS_LOADING(mode)) {
0190         mode = (mode & ~LP5562_MODE_ENG2_M) | LP5562_RUN_ENG2;
0191         exec = (exec & ~LP5562_EXEC_ENG2_M) | LP5562_RUN_ENG2;
0192     }
0193 
0194     if (LP5562_ENG3_IS_LOADING(mode)) {
0195         mode = (mode & ~LP5562_MODE_ENG3_M) | LP5562_RUN_ENG3;
0196         exec = (exec & ~LP5562_EXEC_ENG3_M) | LP5562_RUN_ENG3;
0197     }
0198 
0199     lp55xx_write(chip, LP5562_REG_OP_MODE, mode);
0200     lp5562_wait_opmode_done();
0201 
0202     lp55xx_update_bits(chip, LP5562_REG_ENABLE, LP5562_EXEC_M, exec);
0203     lp5562_wait_enable_done();
0204 }
0205 
0206 static int lp5562_update_firmware(struct lp55xx_chip *chip,
0207                     const u8 *data, size_t size)
0208 {
0209     enum lp55xx_engine_index idx = chip->engine_idx;
0210     u8 pattern[LP5562_PROGRAM_LENGTH] = {0};
0211     static const u8 addr[] = {
0212         [LP55XX_ENGINE_1] = LP5562_REG_PROG_MEM_ENG1,
0213         [LP55XX_ENGINE_2] = LP5562_REG_PROG_MEM_ENG2,
0214         [LP55XX_ENGINE_3] = LP5562_REG_PROG_MEM_ENG3,
0215     };
0216     unsigned cmd;
0217     char c[3];
0218     int program_size;
0219     int nrchars;
0220     int offset = 0;
0221     int ret;
0222     int i;
0223 
0224     /* clear program memory before updating */
0225     for (i = 0; i < LP5562_PROGRAM_LENGTH; i++)
0226         lp55xx_write(chip, addr[idx] + i, 0);
0227 
0228     i = 0;
0229     while ((offset < size - 1) && (i < LP5562_PROGRAM_LENGTH)) {
0230         /* separate sscanfs because length is working only for %s */
0231         ret = sscanf(data + offset, "%2s%n ", c, &nrchars);
0232         if (ret != 1)
0233             goto err;
0234 
0235         ret = sscanf(c, "%2x", &cmd);
0236         if (ret != 1)
0237             goto err;
0238 
0239         pattern[i] = (u8)cmd;
0240         offset += nrchars;
0241         i++;
0242     }
0243 
0244     /* Each instruction is 16bit long. Check that length is even */
0245     if (i % 2)
0246         goto err;
0247 
0248     program_size = i;
0249     for (i = 0; i < program_size; i++)
0250         lp55xx_write(chip, addr[idx] + i, pattern[i]);
0251 
0252     return 0;
0253 
0254 err:
0255     dev_err(&chip->cl->dev, "wrong pattern format\n");
0256     return -EINVAL;
0257 }
0258 
0259 static void lp5562_firmware_loaded(struct lp55xx_chip *chip)
0260 {
0261     const struct firmware *fw = chip->fw;
0262 
0263     /*
0264      * the firmware is encoded in ascii hex character, with 2 chars
0265      * per byte
0266      */
0267     if (fw->size > (LP5562_PROGRAM_LENGTH * 2)) {
0268         dev_err(&chip->cl->dev, "firmware data size overflow: %zu\n",
0269             fw->size);
0270         return;
0271     }
0272 
0273     /*
0274      * Program memory sequence
0275      *  1) set engine mode to "LOAD"
0276      *  2) write firmware data into program memory
0277      */
0278 
0279     lp5562_load_engine(chip);
0280     lp5562_update_firmware(chip, fw->data, fw->size);
0281 }
0282 
0283 static int lp5562_post_init_device(struct lp55xx_chip *chip)
0284 {
0285     int ret;
0286     u8 cfg = LP5562_DEFAULT_CFG;
0287 
0288     /* Set all PWMs to direct control mode */
0289     ret = lp55xx_write(chip, LP5562_REG_OP_MODE, LP5562_CMD_DIRECT);
0290     if (ret)
0291         return ret;
0292 
0293     lp5562_wait_opmode_done();
0294 
0295     /* Update configuration for the clock setting */
0296     if (!lp55xx_is_extclk_used(chip))
0297         cfg |= LP5562_CLK_INT;
0298 
0299     ret = lp55xx_write(chip, LP5562_REG_CONFIG, cfg);
0300     if (ret)
0301         return ret;
0302 
0303     /* Initialize all channels PWM to zero -> leds off */
0304     lp55xx_write(chip, LP5562_REG_R_PWM, 0);
0305     lp55xx_write(chip, LP5562_REG_G_PWM, 0);
0306     lp55xx_write(chip, LP5562_REG_B_PWM, 0);
0307     lp55xx_write(chip, LP5562_REG_W_PWM, 0);
0308 
0309     /* Set LED map as register PWM by default */
0310     lp55xx_write(chip, LP5562_REG_ENG_SEL, LP5562_ENG_SEL_PWM);
0311 
0312     return 0;
0313 }
0314 
0315 static int lp5562_led_brightness(struct lp55xx_led *led)
0316 {
0317     struct lp55xx_chip *chip = led->chip;
0318     static const u8 addr[] = {
0319         LP5562_REG_R_PWM,
0320         LP5562_REG_G_PWM,
0321         LP5562_REG_B_PWM,
0322         LP5562_REG_W_PWM,
0323     };
0324     int ret;
0325 
0326     mutex_lock(&chip->lock);
0327     ret = lp55xx_write(chip, addr[led->chan_nr], led->brightness);
0328     mutex_unlock(&chip->lock);
0329 
0330     return ret;
0331 }
0332 
0333 static void lp5562_write_program_memory(struct lp55xx_chip *chip,
0334                     u8 base, const u8 *rgb, int size)
0335 {
0336     int i;
0337 
0338     if (!rgb || size <= 0)
0339         return;
0340 
0341     for (i = 0; i < size; i++)
0342         lp55xx_write(chip, base + i, *(rgb + i));
0343 
0344     lp55xx_write(chip, base + i, 0);
0345     lp55xx_write(chip, base + i + 1, 0);
0346 }
0347 
0348 /* check the size of program count */
0349 static inline bool _is_pc_overflow(struct lp55xx_predef_pattern *ptn)
0350 {
0351     return ptn->size_r >= LP5562_PROGRAM_LENGTH ||
0352            ptn->size_g >= LP5562_PROGRAM_LENGTH ||
0353            ptn->size_b >= LP5562_PROGRAM_LENGTH;
0354 }
0355 
0356 static int lp5562_run_predef_led_pattern(struct lp55xx_chip *chip, int mode)
0357 {
0358     struct lp55xx_predef_pattern *ptn;
0359     int i;
0360 
0361     if (mode == LP5562_PATTERN_OFF) {
0362         lp5562_run_engine(chip, false);
0363         return 0;
0364     }
0365 
0366     ptn = chip->pdata->patterns + (mode - 1);
0367     if (!ptn || _is_pc_overflow(ptn)) {
0368         dev_err(&chip->cl->dev, "invalid pattern data\n");
0369         return -EINVAL;
0370     }
0371 
0372     lp5562_stop_engine(chip);
0373 
0374     /* Set LED map as RGB */
0375     lp55xx_write(chip, LP5562_REG_ENG_SEL, LP5562_ENG_SEL_RGB);
0376 
0377     /* Load engines */
0378     for (i = LP55XX_ENGINE_1; i <= LP55XX_ENGINE_3; i++) {
0379         chip->engine_idx = i;
0380         lp5562_load_engine(chip);
0381     }
0382 
0383     /* Clear program registers */
0384     lp55xx_write(chip, LP5562_REG_PROG_MEM_ENG1, 0);
0385     lp55xx_write(chip, LP5562_REG_PROG_MEM_ENG1 + 1, 0);
0386     lp55xx_write(chip, LP5562_REG_PROG_MEM_ENG2, 0);
0387     lp55xx_write(chip, LP5562_REG_PROG_MEM_ENG2 + 1, 0);
0388     lp55xx_write(chip, LP5562_REG_PROG_MEM_ENG3, 0);
0389     lp55xx_write(chip, LP5562_REG_PROG_MEM_ENG3 + 1, 0);
0390 
0391     /* Program engines */
0392     lp5562_write_program_memory(chip, LP5562_REG_PROG_MEM_ENG1,
0393                 ptn->r, ptn->size_r);
0394     lp5562_write_program_memory(chip, LP5562_REG_PROG_MEM_ENG2,
0395                 ptn->g, ptn->size_g);
0396     lp5562_write_program_memory(chip, LP5562_REG_PROG_MEM_ENG3,
0397                 ptn->b, ptn->size_b);
0398 
0399     /* Run engines */
0400     lp5562_run_engine(chip, true);
0401 
0402     return 0;
0403 }
0404 
0405 static ssize_t lp5562_store_pattern(struct device *dev,
0406                 struct device_attribute *attr,
0407                 const char *buf, size_t len)
0408 {
0409     struct lp55xx_led *led = i2c_get_clientdata(to_i2c_client(dev));
0410     struct lp55xx_chip *chip = led->chip;
0411     struct lp55xx_predef_pattern *ptn = chip->pdata->patterns;
0412     int num_patterns = chip->pdata->num_patterns;
0413     unsigned long mode;
0414     int ret;
0415 
0416     ret = kstrtoul(buf, 0, &mode);
0417     if (ret)
0418         return ret;
0419 
0420     if (mode > num_patterns || !ptn)
0421         return -EINVAL;
0422 
0423     mutex_lock(&chip->lock);
0424     ret = lp5562_run_predef_led_pattern(chip, mode);
0425     mutex_unlock(&chip->lock);
0426 
0427     if (ret)
0428         return ret;
0429 
0430     return len;
0431 }
0432 
0433 static ssize_t lp5562_store_engine_mux(struct device *dev,
0434                      struct device_attribute *attr,
0435                      const char *buf, size_t len)
0436 {
0437     struct lp55xx_led *led = i2c_get_clientdata(to_i2c_client(dev));
0438     struct lp55xx_chip *chip = led->chip;
0439     u8 mask;
0440     u8 val;
0441 
0442     /* LED map
0443      * R ... Engine 1 (fixed)
0444      * G ... Engine 2 (fixed)
0445      * B ... Engine 3 (fixed)
0446      * W ... Engine 1 or 2 or 3
0447      */
0448 
0449     if (sysfs_streq(buf, "RGB")) {
0450         mask = LP5562_ENG_FOR_RGB_M;
0451         val = LP5562_ENG_SEL_RGB;
0452     } else if (sysfs_streq(buf, "W")) {
0453         enum lp55xx_engine_index idx = chip->engine_idx;
0454 
0455         mask = LP5562_ENG_FOR_W_M;
0456         switch (idx) {
0457         case LP55XX_ENGINE_1:
0458             val = LP5562_ENG1_FOR_W;
0459             break;
0460         case LP55XX_ENGINE_2:
0461             val = LP5562_ENG2_FOR_W;
0462             break;
0463         case LP55XX_ENGINE_3:
0464             val = LP5562_ENG3_FOR_W;
0465             break;
0466         default:
0467             return -EINVAL;
0468         }
0469 
0470     } else {
0471         dev_err(dev, "choose RGB or W\n");
0472         return -EINVAL;
0473     }
0474 
0475     mutex_lock(&chip->lock);
0476     lp55xx_update_bits(chip, LP5562_REG_ENG_SEL, mask, val);
0477     mutex_unlock(&chip->lock);
0478 
0479     return len;
0480 }
0481 
0482 static LP55XX_DEV_ATTR_WO(led_pattern, lp5562_store_pattern);
0483 static LP55XX_DEV_ATTR_WO(engine_mux, lp5562_store_engine_mux);
0484 
0485 static struct attribute *lp5562_attributes[] = {
0486     &dev_attr_led_pattern.attr,
0487     &dev_attr_engine_mux.attr,
0488     NULL,
0489 };
0490 
0491 static const struct attribute_group lp5562_group = {
0492     .attrs = lp5562_attributes,
0493 };
0494 
0495 /* Chip specific configurations */
0496 static struct lp55xx_device_config lp5562_cfg = {
0497     .max_channel  = LP5562_MAX_LEDS,
0498     .reset = {
0499         .addr = LP5562_REG_RESET,
0500         .val  = LP5562_RESET,
0501     },
0502     .enable = {
0503         .addr = LP5562_REG_ENABLE,
0504         .val  = LP5562_ENABLE_DEFAULT,
0505     },
0506     .post_init_device   = lp5562_post_init_device,
0507     .set_led_current    = lp5562_set_led_current,
0508     .brightness_fn      = lp5562_led_brightness,
0509     .run_engine         = lp5562_run_engine,
0510     .firmware_cb        = lp5562_firmware_loaded,
0511     .dev_attr_group     = &lp5562_group,
0512 };
0513 
0514 static int lp5562_probe(struct i2c_client *client,
0515             const struct i2c_device_id *id)
0516 {
0517     int ret;
0518     struct lp55xx_chip *chip;
0519     struct lp55xx_led *led;
0520     struct lp55xx_platform_data *pdata = dev_get_platdata(&client->dev);
0521     struct device_node *np = dev_of_node(&client->dev);
0522 
0523     chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
0524     if (!chip)
0525         return -ENOMEM;
0526 
0527     chip->cfg = &lp5562_cfg;
0528 
0529     if (!pdata) {
0530         if (np) {
0531             pdata = lp55xx_of_populate_pdata(&client->dev, np,
0532                              chip);
0533             if (IS_ERR(pdata))
0534                 return PTR_ERR(pdata);
0535         } else {
0536             dev_err(&client->dev, "no platform data\n");
0537             return -EINVAL;
0538         }
0539     }
0540 
0541 
0542     led = devm_kcalloc(&client->dev,
0543             pdata->num_channels, sizeof(*led), GFP_KERNEL);
0544     if (!led)
0545         return -ENOMEM;
0546 
0547     chip->cl = client;
0548     chip->pdata = pdata;
0549 
0550     mutex_init(&chip->lock);
0551 
0552     i2c_set_clientdata(client, led);
0553 
0554     ret = lp55xx_init_device(chip);
0555     if (ret)
0556         goto err_init;
0557 
0558     ret = lp55xx_register_leds(led, chip);
0559     if (ret)
0560         goto err_out;
0561 
0562     ret = lp55xx_register_sysfs(chip);
0563     if (ret) {
0564         dev_err(&client->dev, "registering sysfs failed\n");
0565         goto err_out;
0566     }
0567 
0568     return 0;
0569 
0570 err_out:
0571     lp55xx_deinit_device(chip);
0572 err_init:
0573     return ret;
0574 }
0575 
0576 static int lp5562_remove(struct i2c_client *client)
0577 {
0578     struct lp55xx_led *led = i2c_get_clientdata(client);
0579     struct lp55xx_chip *chip = led->chip;
0580 
0581     lp5562_stop_engine(chip);
0582 
0583     lp55xx_unregister_sysfs(chip);
0584     lp55xx_deinit_device(chip);
0585 
0586     return 0;
0587 }
0588 
0589 static const struct i2c_device_id lp5562_id[] = {
0590     { "lp5562", 0 },
0591     { }
0592 };
0593 MODULE_DEVICE_TABLE(i2c, lp5562_id);
0594 
0595 #ifdef CONFIG_OF
0596 static const struct of_device_id of_lp5562_leds_match[] = {
0597     { .compatible = "ti,lp5562", },
0598     {},
0599 };
0600 
0601 MODULE_DEVICE_TABLE(of, of_lp5562_leds_match);
0602 #endif
0603 
0604 static struct i2c_driver lp5562_driver = {
0605     .driver = {
0606         .name   = "lp5562",
0607         .of_match_table = of_match_ptr(of_lp5562_leds_match),
0608     },
0609     .probe      = lp5562_probe,
0610     .remove     = lp5562_remove,
0611     .id_table   = lp5562_id,
0612 };
0613 
0614 module_i2c_driver(lp5562_driver);
0615 
0616 MODULE_DESCRIPTION("Texas Instruments LP5562 LED Driver");
0617 MODULE_AUTHOR("Milo Kim");
0618 MODULE_LICENSE("GPL");
[ Source navigation ] [ Diff markup ] [ Identifier search ] [ general search ]

This page was automatically generated by the 2.1.0 LXR engine.

The LXR team
Valid CSS 2.1! Valid HTML 4.01!