1d2912cb1SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 233b3a561SKim, Milo /* 333b3a561SKim, Milo * TI LP8501 9 channel LED Driver 433b3a561SKim, Milo * 533b3a561SKim, Milo * Copyright (C) 2013 Texas Instruments 633b3a561SKim, Milo * 733b3a561SKim, Milo * Author: Milo(Woogyom) Kim <milo.kim@ti.com> 833b3a561SKim, Milo */ 933b3a561SKim, Milo 1033b3a561SKim, Milo #include <linux/delay.h> 1133b3a561SKim, Milo #include <linux/firmware.h> 1233b3a561SKim, Milo #include <linux/i2c.h> 1333b3a561SKim, Milo #include <linux/init.h> 1433b3a561SKim, Milo #include <linux/leds.h> 1533b3a561SKim, Milo #include <linux/module.h> 1633b3a561SKim, Milo #include <linux/mutex.h> 17c68f46ddSSachin Kamat #include <linux/of.h> 1833b3a561SKim, Milo #include <linux/platform_data/leds-lp55xx.h> 1933b3a561SKim, Milo #include <linux/slab.h> 2033b3a561SKim, Milo 2133b3a561SKim, Milo #include "leds-lp55xx-common.h" 2233b3a561SKim, Milo 2333b3a561SKim, Milo #define LP8501_PROGRAM_LENGTH 32 2433b3a561SKim, Milo #define LP8501_MAX_LEDS 9 2533b3a561SKim, Milo 2633b3a561SKim, Milo /* Registers */ 2733b3a561SKim, Milo #define LP8501_REG_ENABLE 0x00 2833b3a561SKim, Milo #define LP8501_ENABLE BIT(6) 2933b3a561SKim, Milo #define LP8501_EXEC_M 0x3F 3033b3a561SKim, Milo #define LP8501_EXEC_ENG1_M 0x30 3133b3a561SKim, Milo #define LP8501_EXEC_ENG2_M 0x0C 3233b3a561SKim, Milo #define LP8501_EXEC_ENG3_M 0x03 3333b3a561SKim, Milo #define LP8501_RUN_ENG1 0x20 3433b3a561SKim, Milo #define LP8501_RUN_ENG2 0x08 3533b3a561SKim, Milo #define LP8501_RUN_ENG3 0x02 3633b3a561SKim, Milo 3733b3a561SKim, Milo #define LP8501_REG_OP_MODE 0x01 3833b3a561SKim, Milo #define LP8501_MODE_ENG1_M 0x30 3933b3a561SKim, Milo #define LP8501_MODE_ENG2_M 0x0C 4033b3a561SKim, Milo #define LP8501_MODE_ENG3_M 0x03 4133b3a561SKim, Milo #define LP8501_LOAD_ENG1 0x10 4233b3a561SKim, Milo #define LP8501_LOAD_ENG2 0x04 4333b3a561SKim, Milo #define LP8501_LOAD_ENG3 0x01 4433b3a561SKim, Milo 4533b3a561SKim, Milo #define LP8501_REG_PWR_CONFIG 0x05 4633b3a561SKim, Milo #define LP8501_PWR_CONFIG_M 0x03 4733b3a561SKim, Milo 4833b3a561SKim, Milo #define LP8501_REG_LED_PWM_BASE 0x16 4933b3a561SKim, Milo 5033b3a561SKim, Milo #define LP8501_REG_LED_CURRENT_BASE 0x26 5133b3a561SKim, Milo 5233b3a561SKim, Milo #define LP8501_REG_CONFIG 0x36 5333b3a561SKim, Milo #define LP8501_PWM_PSAVE BIT(7) 5433b3a561SKim, Milo #define LP8501_AUTO_INC BIT(6) 5533b3a561SKim, Milo #define LP8501_PWR_SAVE BIT(5) 5633b3a561SKim, Milo #define LP8501_CP_AUTO 0x18 5733b3a561SKim, Milo #define LP8501_INT_CLK BIT(0) 5833b3a561SKim, Milo #define LP8501_DEFAULT_CFG \ 5933b3a561SKim, Milo (LP8501_PWM_PSAVE | LP8501_AUTO_INC | LP8501_PWR_SAVE | LP8501_CP_AUTO) 6033b3a561SKim, Milo 6133b3a561SKim, Milo #define LP8501_REG_RESET 0x3D 6233b3a561SKim, Milo #define LP8501_RESET 0xFF 6333b3a561SKim, Milo 6433b3a561SKim, Milo #define LP8501_REG_PROG_PAGE_SEL 0x4F 6533b3a561SKim, Milo #define LP8501_PAGE_ENG1 0 6633b3a561SKim, Milo #define LP8501_PAGE_ENG2 1 6733b3a561SKim, Milo #define LP8501_PAGE_ENG3 2 6833b3a561SKim, Milo 6933b3a561SKim, Milo #define LP8501_REG_PROG_MEM 0x50 7033b3a561SKim, Milo 7133b3a561SKim, Milo #define LP8501_ENG1_IS_LOADING(mode) \ 7233b3a561SKim, Milo ((mode & LP8501_MODE_ENG1_M) == LP8501_LOAD_ENG1) 7333b3a561SKim, Milo #define LP8501_ENG2_IS_LOADING(mode) \ 7433b3a561SKim, Milo ((mode & LP8501_MODE_ENG2_M) == LP8501_LOAD_ENG2) 7533b3a561SKim, Milo #define LP8501_ENG3_IS_LOADING(mode) \ 7633b3a561SKim, Milo ((mode & LP8501_MODE_ENG3_M) == LP8501_LOAD_ENG3) 7733b3a561SKim, Milo 7833b3a561SKim, Milo static inline void lp8501_wait_opmode_done(void) 7933b3a561SKim, Milo { 8033b3a561SKim, Milo usleep_range(1000, 2000); 8133b3a561SKim, Milo } 8233b3a561SKim, Milo 8333b3a561SKim, Milo static void lp8501_set_led_current(struct lp55xx_led *led, u8 led_current) 8433b3a561SKim, Milo { 8533b3a561SKim, Milo led->led_current = led_current; 8633b3a561SKim, Milo lp55xx_write(led->chip, LP8501_REG_LED_CURRENT_BASE + led->chan_nr, 8733b3a561SKim, Milo led_current); 8833b3a561SKim, Milo } 8933b3a561SKim, Milo 9033b3a561SKim, Milo static int lp8501_post_init_device(struct lp55xx_chip *chip) 9133b3a561SKim, Milo { 9233b3a561SKim, Milo int ret; 9333b3a561SKim, Milo u8 val = LP8501_DEFAULT_CFG; 9433b3a561SKim, Milo 9533b3a561SKim, Milo ret = lp55xx_write(chip, LP8501_REG_ENABLE, LP8501_ENABLE); 9633b3a561SKim, Milo if (ret) 9733b3a561SKim, Milo return ret; 9833b3a561SKim, Milo 9933b3a561SKim, Milo /* Chip startup time is 500 us, 1 - 2 ms gives some margin */ 10033b3a561SKim, Milo usleep_range(1000, 2000); 10133b3a561SKim, Milo 10233b3a561SKim, Milo if (chip->pdata->clock_mode != LP55XX_CLOCK_EXT) 10333b3a561SKim, Milo val |= LP8501_INT_CLK; 10433b3a561SKim, Milo 10533b3a561SKim, Milo ret = lp55xx_write(chip, LP8501_REG_CONFIG, val); 10633b3a561SKim, Milo if (ret) 10733b3a561SKim, Milo return ret; 10833b3a561SKim, Milo 10933b3a561SKim, Milo /* Power selection for each output */ 11033b3a561SKim, Milo return lp55xx_update_bits(chip, LP8501_REG_PWR_CONFIG, 11133b3a561SKim, Milo LP8501_PWR_CONFIG_M, chip->pdata->pwr_sel); 11233b3a561SKim, Milo } 11333b3a561SKim, Milo 11433b3a561SKim, Milo static void lp8501_load_engine(struct lp55xx_chip *chip) 11533b3a561SKim, Milo { 11633b3a561SKim, Milo enum lp55xx_engine_index idx = chip->engine_idx; 11734b558a5SColin Ian King static const u8 mask[] = { 11833b3a561SKim, Milo [LP55XX_ENGINE_1] = LP8501_MODE_ENG1_M, 11933b3a561SKim, Milo [LP55XX_ENGINE_2] = LP8501_MODE_ENG2_M, 12033b3a561SKim, Milo [LP55XX_ENGINE_3] = LP8501_MODE_ENG3_M, 12133b3a561SKim, Milo }; 12233b3a561SKim, Milo 12334b558a5SColin Ian King static const u8 val[] = { 12433b3a561SKim, Milo [LP55XX_ENGINE_1] = LP8501_LOAD_ENG1, 12533b3a561SKim, Milo [LP55XX_ENGINE_2] = LP8501_LOAD_ENG2, 12633b3a561SKim, Milo [LP55XX_ENGINE_3] = LP8501_LOAD_ENG3, 12733b3a561SKim, Milo }; 12833b3a561SKim, Milo 12934b558a5SColin Ian King static const u8 page_sel[] = { 13033b3a561SKim, Milo [LP55XX_ENGINE_1] = LP8501_PAGE_ENG1, 13133b3a561SKim, Milo [LP55XX_ENGINE_2] = LP8501_PAGE_ENG2, 13233b3a561SKim, Milo [LP55XX_ENGINE_3] = LP8501_PAGE_ENG3, 13333b3a561SKim, Milo }; 13433b3a561SKim, Milo 13533b3a561SKim, Milo lp55xx_update_bits(chip, LP8501_REG_OP_MODE, mask[idx], val[idx]); 13633b3a561SKim, Milo 13733b3a561SKim, Milo lp8501_wait_opmode_done(); 13833b3a561SKim, Milo 13933b3a561SKim, Milo lp55xx_write(chip, LP8501_REG_PROG_PAGE_SEL, page_sel[idx]); 14033b3a561SKim, Milo } 14133b3a561SKim, Milo 14233b3a561SKim, Milo static void lp8501_stop_engine(struct lp55xx_chip *chip) 14333b3a561SKim, Milo { 14433b3a561SKim, Milo lp55xx_write(chip, LP8501_REG_OP_MODE, 0); 14533b3a561SKim, Milo lp8501_wait_opmode_done(); 14633b3a561SKim, Milo } 14733b3a561SKim, Milo 14833b3a561SKim, Milo static void lp8501_turn_off_channels(struct lp55xx_chip *chip) 14933b3a561SKim, Milo { 15033b3a561SKim, Milo int i; 15133b3a561SKim, Milo 15233b3a561SKim, Milo for (i = 0; i < LP8501_MAX_LEDS; i++) 15333b3a561SKim, Milo lp55xx_write(chip, LP8501_REG_LED_PWM_BASE + i, 0); 15433b3a561SKim, Milo } 15533b3a561SKim, Milo 15633b3a561SKim, Milo static void lp8501_run_engine(struct lp55xx_chip *chip, bool start) 15733b3a561SKim, Milo { 15833b3a561SKim, Milo int ret; 15933b3a561SKim, Milo u8 mode; 16033b3a561SKim, Milo u8 exec; 16133b3a561SKim, Milo 16233b3a561SKim, Milo /* stop engine */ 16333b3a561SKim, Milo if (!start) { 16433b3a561SKim, Milo lp8501_stop_engine(chip); 16533b3a561SKim, Milo lp8501_turn_off_channels(chip); 16633b3a561SKim, Milo return; 16733b3a561SKim, Milo } 16833b3a561SKim, Milo 16933b3a561SKim, Milo /* 17033b3a561SKim, Milo * To run the engine, 17133b3a561SKim, Milo * operation mode and enable register should updated at the same time 17233b3a561SKim, Milo */ 17333b3a561SKim, Milo 17433b3a561SKim, Milo ret = lp55xx_read(chip, LP8501_REG_OP_MODE, &mode); 17533b3a561SKim, Milo if (ret) 17633b3a561SKim, Milo return; 17733b3a561SKim, Milo 17833b3a561SKim, Milo ret = lp55xx_read(chip, LP8501_REG_ENABLE, &exec); 17933b3a561SKim, Milo if (ret) 18033b3a561SKim, Milo return; 18133b3a561SKim, Milo 18233b3a561SKim, Milo /* change operation mode to RUN only when each engine is loading */ 18333b3a561SKim, Milo if (LP8501_ENG1_IS_LOADING(mode)) { 18433b3a561SKim, Milo mode = (mode & ~LP8501_MODE_ENG1_M) | LP8501_RUN_ENG1; 18533b3a561SKim, Milo exec = (exec & ~LP8501_EXEC_ENG1_M) | LP8501_RUN_ENG1; 18633b3a561SKim, Milo } 18733b3a561SKim, Milo 18833b3a561SKim, Milo if (LP8501_ENG2_IS_LOADING(mode)) { 18933b3a561SKim, Milo mode = (mode & ~LP8501_MODE_ENG2_M) | LP8501_RUN_ENG2; 19033b3a561SKim, Milo exec = (exec & ~LP8501_EXEC_ENG2_M) | LP8501_RUN_ENG2; 19133b3a561SKim, Milo } 19233b3a561SKim, Milo 19333b3a561SKim, Milo if (LP8501_ENG3_IS_LOADING(mode)) { 19433b3a561SKim, Milo mode = (mode & ~LP8501_MODE_ENG3_M) | LP8501_RUN_ENG3; 19533b3a561SKim, Milo exec = (exec & ~LP8501_EXEC_ENG3_M) | LP8501_RUN_ENG3; 19633b3a561SKim, Milo } 19733b3a561SKim, Milo 19833b3a561SKim, Milo lp55xx_write(chip, LP8501_REG_OP_MODE, mode); 19933b3a561SKim, Milo lp8501_wait_opmode_done(); 20033b3a561SKim, Milo 20133b3a561SKim, Milo lp55xx_update_bits(chip, LP8501_REG_ENABLE, LP8501_EXEC_M, exec); 20233b3a561SKim, Milo } 20333b3a561SKim, Milo 20433b3a561SKim, Milo static int lp8501_update_program_memory(struct lp55xx_chip *chip, 20533b3a561SKim, Milo const u8 *data, size_t size) 20633b3a561SKim, Milo { 20733b3a561SKim, Milo u8 pattern[LP8501_PROGRAM_LENGTH] = {0}; 20833b3a561SKim, Milo unsigned cmd; 20933b3a561SKim, Milo char c[3]; 21033b3a561SKim, Milo int update_size; 21133b3a561SKim, Milo int nrchars; 21233b3a561SKim, Milo int offset = 0; 21333b3a561SKim, Milo int ret; 21433b3a561SKim, Milo int i; 21533b3a561SKim, Milo 21633b3a561SKim, Milo /* clear program memory before updating */ 21733b3a561SKim, Milo for (i = 0; i < LP8501_PROGRAM_LENGTH; i++) 21833b3a561SKim, Milo lp55xx_write(chip, LP8501_REG_PROG_MEM + i, 0); 21933b3a561SKim, Milo 22033b3a561SKim, Milo i = 0; 22133b3a561SKim, Milo while ((offset < size - 1) && (i < LP8501_PROGRAM_LENGTH)) { 22233b3a561SKim, Milo /* separate sscanfs because length is working only for %s */ 22333b3a561SKim, Milo ret = sscanf(data + offset, "%2s%n ", c, &nrchars); 22433b3a561SKim, Milo if (ret != 1) 22533b3a561SKim, Milo goto err; 22633b3a561SKim, Milo 22733b3a561SKim, Milo ret = sscanf(c, "%2x", &cmd); 22833b3a561SKim, Milo if (ret != 1) 22933b3a561SKim, Milo goto err; 23033b3a561SKim, Milo 23133b3a561SKim, Milo pattern[i] = (u8)cmd; 23233b3a561SKim, Milo offset += nrchars; 23333b3a561SKim, Milo i++; 23433b3a561SKim, Milo } 23533b3a561SKim, Milo 23633b3a561SKim, Milo /* Each instruction is 16bit long. Check that length is even */ 23733b3a561SKim, Milo if (i % 2) 23833b3a561SKim, Milo goto err; 23933b3a561SKim, Milo 24033b3a561SKim, Milo update_size = i; 24133b3a561SKim, Milo for (i = 0; i < update_size; i++) 24233b3a561SKim, Milo lp55xx_write(chip, LP8501_REG_PROG_MEM + i, pattern[i]); 24333b3a561SKim, Milo 24433b3a561SKim, Milo return 0; 24533b3a561SKim, Milo 24633b3a561SKim, Milo err: 24733b3a561SKim, Milo dev_err(&chip->cl->dev, "wrong pattern format\n"); 24833b3a561SKim, Milo return -EINVAL; 24933b3a561SKim, Milo } 25033b3a561SKim, Milo 25133b3a561SKim, Milo static void lp8501_firmware_loaded(struct lp55xx_chip *chip) 25233b3a561SKim, Milo { 25333b3a561SKim, Milo const struct firmware *fw = chip->fw; 25433b3a561SKim, Milo 25533b3a561SKim, Milo if (fw->size > LP8501_PROGRAM_LENGTH) { 25633b3a561SKim, Milo dev_err(&chip->cl->dev, "firmware data size overflow: %zu\n", 25733b3a561SKim, Milo fw->size); 25833b3a561SKim, Milo return; 25933b3a561SKim, Milo } 26033b3a561SKim, Milo 26133b3a561SKim, Milo /* 262bfb18d82SPavel Machek * Program memory sequence 26333b3a561SKim, Milo * 1) set engine mode to "LOAD" 26433b3a561SKim, Milo * 2) write firmware data into program memory 26533b3a561SKim, Milo */ 26633b3a561SKim, Milo 26733b3a561SKim, Milo lp8501_load_engine(chip); 26833b3a561SKim, Milo lp8501_update_program_memory(chip, fw->data, fw->size); 26933b3a561SKim, Milo } 27033b3a561SKim, Milo 27195b2af63SAndrew Lunn static int lp8501_led_brightness(struct lp55xx_led *led) 27233b3a561SKim, Milo { 27333b3a561SKim, Milo struct lp55xx_chip *chip = led->chip; 27495b2af63SAndrew Lunn int ret; 27533b3a561SKim, Milo 27633b3a561SKim, Milo mutex_lock(&chip->lock); 27795b2af63SAndrew Lunn ret = lp55xx_write(chip, LP8501_REG_LED_PWM_BASE + led->chan_nr, 27833b3a561SKim, Milo led->brightness); 27933b3a561SKim, Milo mutex_unlock(&chip->lock); 28095b2af63SAndrew Lunn 28195b2af63SAndrew Lunn return ret; 28233b3a561SKim, Milo } 28333b3a561SKim, Milo 28433b3a561SKim, Milo /* Chip specific configurations */ 28533b3a561SKim, Milo static struct lp55xx_device_config lp8501_cfg = { 28633b3a561SKim, Milo .reset = { 28733b3a561SKim, Milo .addr = LP8501_REG_RESET, 28833b3a561SKim, Milo .val = LP8501_RESET, 28933b3a561SKim, Milo }, 29033b3a561SKim, Milo .enable = { 29133b3a561SKim, Milo .addr = LP8501_REG_ENABLE, 29233b3a561SKim, Milo .val = LP8501_ENABLE, 29333b3a561SKim, Milo }, 29433b3a561SKim, Milo .max_channel = LP8501_MAX_LEDS, 29533b3a561SKim, Milo .post_init_device = lp8501_post_init_device, 29695b2af63SAndrew Lunn .brightness_fn = lp8501_led_brightness, 29733b3a561SKim, Milo .set_led_current = lp8501_set_led_current, 29833b3a561SKim, Milo .firmware_cb = lp8501_firmware_loaded, 29933b3a561SKim, Milo .run_engine = lp8501_run_engine, 30033b3a561SKim, Milo }; 30133b3a561SKim, Milo 30233b3a561SKim, Milo static int lp8501_probe(struct i2c_client *client, 30333b3a561SKim, Milo const struct i2c_device_id *id) 30433b3a561SKim, Milo { 30533b3a561SKim, Milo int ret; 30633b3a561SKim, Milo struct lp55xx_chip *chip; 30733b3a561SKim, Milo struct lp55xx_led *led; 308ed133352SMilo Kim struct lp55xx_platform_data *pdata = dev_get_platdata(&client->dev); 30933b3a561SKim, Milo struct device_node *np = client->dev.of_node; 31033b3a561SKim, Milo 311ed133352SMilo Kim if (!pdata) { 31233b3a561SKim, Milo if (np) { 313ed133352SMilo Kim pdata = lp55xx_of_populate_pdata(&client->dev, np); 314ed133352SMilo Kim if (IS_ERR(pdata)) 315ed133352SMilo Kim return PTR_ERR(pdata); 31633b3a561SKim, Milo } else { 31733b3a561SKim, Milo dev_err(&client->dev, "no platform data\n"); 31833b3a561SKim, Milo return -EINVAL; 31933b3a561SKim, Milo } 32033b3a561SKim, Milo } 32133b3a561SKim, Milo 32233b3a561SKim, Milo chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL); 32333b3a561SKim, Milo if (!chip) 32433b3a561SKim, Milo return -ENOMEM; 32533b3a561SKim, Milo 326a86854d0SKees Cook led = devm_kcalloc(&client->dev, 327a86854d0SKees Cook pdata->num_channels, sizeof(*led), GFP_KERNEL); 32833b3a561SKim, Milo if (!led) 32933b3a561SKim, Milo return -ENOMEM; 33033b3a561SKim, Milo 33133b3a561SKim, Milo chip->cl = client; 33233b3a561SKim, Milo chip->pdata = pdata; 33333b3a561SKim, Milo chip->cfg = &lp8501_cfg; 33433b3a561SKim, Milo 33533b3a561SKim, Milo mutex_init(&chip->lock); 33633b3a561SKim, Milo 33733b3a561SKim, Milo i2c_set_clientdata(client, led); 33833b3a561SKim, Milo 33933b3a561SKim, Milo ret = lp55xx_init_device(chip); 34033b3a561SKim, Milo if (ret) 34133b3a561SKim, Milo goto err_init; 34233b3a561SKim, Milo 34333b3a561SKim, Milo dev_info(&client->dev, "%s Programmable led chip found\n", id->name); 34433b3a561SKim, Milo 34533b3a561SKim, Milo ret = lp55xx_register_leds(led, chip); 34633b3a561SKim, Milo if (ret) 34733b3a561SKim, Milo goto err_register_leds; 34833b3a561SKim, Milo 34933b3a561SKim, Milo ret = lp55xx_register_sysfs(chip); 35033b3a561SKim, Milo if (ret) { 35133b3a561SKim, Milo dev_err(&client->dev, "registering sysfs failed\n"); 35233b3a561SKim, Milo goto err_register_sysfs; 35333b3a561SKim, Milo } 35433b3a561SKim, Milo 35533b3a561SKim, Milo return 0; 35633b3a561SKim, Milo 35733b3a561SKim, Milo err_register_sysfs: 35833b3a561SKim, Milo lp55xx_unregister_leds(led, chip); 35933b3a561SKim, Milo err_register_leds: 36033b3a561SKim, Milo lp55xx_deinit_device(chip); 36133b3a561SKim, Milo err_init: 36233b3a561SKim, Milo return ret; 36333b3a561SKim, Milo } 36433b3a561SKim, Milo 36533b3a561SKim, Milo static int lp8501_remove(struct i2c_client *client) 36633b3a561SKim, Milo { 36733b3a561SKim, Milo struct lp55xx_led *led = i2c_get_clientdata(client); 36833b3a561SKim, Milo struct lp55xx_chip *chip = led->chip; 36933b3a561SKim, Milo 37033b3a561SKim, Milo lp8501_stop_engine(chip); 37133b3a561SKim, Milo lp55xx_unregister_sysfs(chip); 37233b3a561SKim, Milo lp55xx_unregister_leds(led, chip); 37333b3a561SKim, Milo lp55xx_deinit_device(chip); 37433b3a561SKim, Milo 37533b3a561SKim, Milo return 0; 37633b3a561SKim, Milo } 37733b3a561SKim, Milo 37833b3a561SKim, Milo static const struct i2c_device_id lp8501_id[] = { 37933b3a561SKim, Milo { "lp8501", 0 }, 38033b3a561SKim, Milo { } 38133b3a561SKim, Milo }; 38233b3a561SKim, Milo MODULE_DEVICE_TABLE(i2c, lp8501_id); 38333b3a561SKim, Milo 38433b3a561SKim, Milo #ifdef CONFIG_OF 38533b3a561SKim, Milo static const struct of_device_id of_lp8501_leds_match[] = { 38633b3a561SKim, Milo { .compatible = "ti,lp8501", }, 38733b3a561SKim, Milo {}, 38833b3a561SKim, Milo }; 38933b3a561SKim, Milo 39033b3a561SKim, Milo MODULE_DEVICE_TABLE(of, of_lp8501_leds_match); 39133b3a561SKim, Milo #endif 39233b3a561SKim, Milo 39333b3a561SKim, Milo static struct i2c_driver lp8501_driver = { 39433b3a561SKim, Milo .driver = { 39533b3a561SKim, Milo .name = "lp8501", 39633b3a561SKim, Milo .of_match_table = of_match_ptr(of_lp8501_leds_match), 39733b3a561SKim, Milo }, 39833b3a561SKim, Milo .probe = lp8501_probe, 39933b3a561SKim, Milo .remove = lp8501_remove, 40033b3a561SKim, Milo .id_table = lp8501_id, 40133b3a561SKim, Milo }; 40233b3a561SKim, Milo 40333b3a561SKim, Milo module_i2c_driver(lp8501_driver); 40433b3a561SKim, Milo 405336af37eSMasanari Iida MODULE_DESCRIPTION("Texas Instruments LP8501 LED driver"); 40633b3a561SKim, Milo MODULE_AUTHOR("Milo Kim"); 40733b3a561SKim, Milo MODULE_LICENSE("GPL"); 408