Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756696Ab2FYUsf (ORCPT ); Mon, 25 Jun 2012 16:48:35 -0400 Received: from g4t0015.houston.hp.com ([15.201.24.18]:23233 "EHLO g4t0015.houston.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755516Ab2FYUsd (ORCPT ); Mon, 25 Jun 2012 16:48:33 -0400 Message-ID: <1340657310.6882.9.camel@lorien2> Subject: Re: [PATCH 1/1 v3] leds: Add LED driver for lm3556 chip From: Shuah Khan Reply-To: shuahkhan@gmail.com To: "G.Shark Jeong" Cc: shuahkhan@gmail.com, Bryan Wu , Richard Purdie , Daniel Jeong , linux-kernel@vger.kernel.org, milo kim Date: Mon, 25 Jun 2012 14:48:30 -0600 In-Reply-To: <1340169088-4401-2-git-send-email-gshark.jeong@gmail.com> References: <1340169088-4401-1-git-send-email-gshark.jeong@gmail.com> <1340169088-4401-2-git-send-email-gshark.jeong@gmail.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3-0ubuntu6 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 19431 Lines: 652 On Wed, 2012-06-20 at 14:11 +0900, G.Shark Jeong wrote: > From: "G.Shark Jeong" > > LM3556 : > The LM3556 is a 4 MHz fixed-frequency synchronous boost > converter plus 1.5A constant current driver for a high-current white LED. > Datasheet: www.national.com/ds/LM/LM3556.pdf > > Tested on OMAP4430 > > Signed-off-by: G.Shark Jeong > --- > drivers/leds/Kconfig | 7 + > drivers/leds/Makefile | 1 + > drivers/leds/leds-lm3556.c | 529 +++++++++++++++++++++++++++++ > include/linux/platform_data/leds-lm3556.h | 50 +++ > 4 files changed, 587 insertions(+), 0 deletions(-) > create mode 100644 drivers/leds/leds-lm3556.c > create mode 100644 include/linux/platform_data/leds-lm3556.h > > diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig > index 04cb8c8..a5f3e00 100644 > --- a/drivers/leds/Kconfig > +++ b/drivers/leds/Kconfig > @@ -415,6 +415,13 @@ config LEDS_MAX8997 > This option enables support for on-chip LED drivers on > MAXIM MAX8997 PMIC. > > +config LEDS_LM3556 > + tristate "LED support for LM3556 Chip" > + depends on LEDS_CLASS && I2C > + help > + This option enables support for LEDs connected LM3556. > + LM3556 includes Torch, Flash and Indicator functions. > + > config LEDS_OT200 > tristate "LED support for the Bachmann OT200" > depends on LEDS_CLASS && HAS_IOMEM > diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile > index f8958cd..2d69a86 100644 > --- a/drivers/leds/Makefile > +++ b/drivers/leds/Makefile > @@ -47,6 +47,7 @@ obj-$(CONFIG_LEDS_NETXBIG) += leds-netxbig.o > obj-$(CONFIG_LEDS_ASIC3) += leds-asic3.o > obj-$(CONFIG_LEDS_RENESAS_TPU) += leds-renesas-tpu.o > obj-$(CONFIG_LEDS_MAX8997) += leds-max8997.o > +obj-$(CONFIG_LEDS_LM3556) += leds-lm3556.o > > # LED SPI Drivers > obj-$(CONFIG_LEDS_DAC124S085) += leds-dac124s085.o > diff --git a/drivers/leds/leds-lm3556.c b/drivers/leds/leds-lm3556.c > new file mode 100644 > index 0000000..954dd59 > --- /dev/null > +++ b/drivers/leds/leds-lm3556.c > @@ -0,0 +1,529 @@ > +/* > + * Simple driver for Texas Instruments LM3556 LED Flash driver chip (Rev0x03) > + * Copyright (C) 2012 Texas Instruments > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License version 2 as > + * published by the Free Software Foundation. > + * > + * Please refer Documentation/leds/leds-lm3556.txt file. > + */ > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > + > +#define REG_FILT_TIME (0x0) > +#define REG_IVFM_MODE (0x1) > +#define REG_NTC (0x2) > +#define REG_INDIC_TIME (0x3) > +#define REG_INDIC_BLINK (0x4) > +#define REG_INDIC_PERIOD (0x5) > +#define REG_TORCH_TIME (0x6) > +#define REG_CONF (0x7) > +#define REG_FLASH (0x8) > +#define REG_I_CTRL (0x9) > +#define REG_ENABLE (0xA) > +#define REG_FLAG (0xB) > +#define REG_MAX (0xC) > + > +#define IVFM_FILTER_TIME_SHIFT (3) > +#define UVLO_EN_SHIFT (7) > +#define HYSTERSIS_SHIFT (5) > +#define IVM_D_TH_SHIFT (2) > +#define IVFM_ADJ_MODE_SHIFT (0) > +#define NTC_EVENT_LVL_SHIFT (5) > +#define NTC_TRIP_TH_SHIFT (2) > +#define NTC_BIAS_I_LVL_SHIFT (0) > +#define INDIC_RAMP_UP_TIME_SHIFT (3) > +#define INDIC_RAMP_DN_TIME_SHIFT (0) > +#define INDIC_N_BLANK_SHIFT (4) > +#define INDIC_PULSE_TIME_SHIFT (0) > +#define INDIC_N_PERIOD_SHIFT (0) > +#define TORCH_RAMP_UP_TIME_SHIFT (3) > +#define TORCH_RAMP_DN_TIME_SHIFT (0) > +#define STROBE_USUAGE_SHIFT (7) > +#define STROBE_PIN_POLARITY_SHIFT (6) > +#define TORCH_PIN_POLARITY_SHIFT (5) > +#define TX_PIN_POLARITY_SHIFT (4) > +#define TX_EVENT_LVL_SHIFT (3) > +#define IVFM_EN_SHIFT (2) > +#define NTC_MODE_SHIFT (1) > +#define INDIC_MODE_SHIFT (0) > +#define INDUCTOR_I_LIMIT_SHIFT (6) > +#define FLASH_RAMP_TIME_SHIFT (3) > +#define FLASH_TOUT_TIME_SHIFT (0) > +#define TORCH_I_SHIFT (4) > +#define FLASH_I_SHIFT (0) > +#define NTC_EN_SHIFT (7) > +#define TX_PIN_EN_SHIFT (6) > +#define STROBE_PIN_EN_SHIFT (5) > +#define TORCH_PIN_EN_SHIFT (4) > +#define PRECHG_MODE_EN_SHIFT (3) > +#define PASS_MODE_ONLY_EN_SHIFT (2) > +#define MODE_BITS_SHIFT (0) > + > +#define IVFM_FILTER_TIME_MASK (0x3) > +#define UVLO_EN_MASK (0x1) > +#define HYSTERSIS_MASK (0x3) > +#define IVM_D_TH_MASK (0x7) > +#define IVFM_ADJ_MODE_MASK (0x3) > +#define NTC_EVENT_LVL_MASK (0x1) > +#define NTC_TRIP_TH_MASK (0x7) > +#define NTC_BIAS_I_LVL_MASK (0x3) > +#define INDIC_RAMP_UP_TIME_MASK (0x7) > +#define INDIC_RAMP_DN_TIME_MASK (0x7) > +#define INDIC_N_BLANK_MASK (0x7) > +#define INDIC_PULSE_TIME_MASK (0x7) > +#define INDIC_N_PERIOD_MASK (0x7) > +#define TORCH_RAMP_UP_TIME_MASK (0x7) > +#define TORCH_RAMP_DN_TIME_MASK (0x7) > +#define STROBE_USUAGE_MASK (0x1) > +#define STROBE_PIN_POLARITY_MASK (0x1) > +#define TORCH_PIN_POLARITY_MASK (0x1) > +#define TX_PIN_POLARITY_MASK (0x1) > +#define TX_EVENT_LVL_MASK (0x1) > +#define IVFM_EN_MASK (0x1) > +#define NTC_MODE_MASK (0x1) > +#define INDIC_MODE_MASK (0x1) > +#define INDUCTOR_I_LIMIT_MASK (0x3) > +#define FLASH_RAMP_TIME_MASK (0x7) > +#define FLASH_TOUT_TIME_MASK (0x7) > +#define TORCH_I_MASK (0x7) > +#define FLASH_I_MASK (0xF) > +#define NTC_EN_MASK (0x1) > +#define TX_PIN_EN_MASK (0x1) > +#define STROBE_PIN_EN_MASK (0x1) > +#define TORCH_PIN_EN_MASK (0x1) > +#define PRECHG_MODE_EN_MASK (0x1) > +#define PASS_MODE_ONLY_EN_MASK (0x1) > +#define MODE_BITS_MASK (0x13) > +#define EX_PIN_CONTROL_MASK (0xF1) > +#define EX_PIN_ENABLE_MASK (0x70) > + > +enum lm3556_indic_pulse_time { > + PULSE_TIME_0_MS = 0, > + PULSE_TIME_32_MS, > + PULSE_TIME_64_MS, > + PULSE_TIME_92_MS, > + PULSE_TIME_128_MS, > + PULSE_TIME_160_MS, > + PULSE_TIME_196_MS, > + PULSE_TIME_224_MS, > + PULSE_TIME_256_MS, > + PULSE_TIME_288_MS, > + PULSE_TIME_320_MS, > + PULSE_TIME_352_MS, > + PULSE_TIME_384_MS, > + PULSE_TIME_416_MS, > + PULSE_TIME_448_MS, > + PULSE_TIME_480_MS, > +}; > + > +enum lm3556_indic_n_blank { > + INDIC_N_BLANK_0 = 0, > + INDIC_N_BLANK_1, > + INDIC_N_BLANK_2, > + INDIC_N_BLANK_3, > + INDIC_N_BLANK_4, > + INDIC_N_BLANK_5, > + INDIC_N_BLANK_6, > + INDIC_N_BLANK_7, > + INDIC_N_BLANK_8, > + INDIC_N_BLANK_9, > + INDIC_N_BLANK_10, > + INDIC_N_BLANK_11, > + INDIC_N_BLANK_12, > + INDIC_N_BLANK_13, > + INDIC_N_BLANK_14, > + INDIC_N_BLANK_15, > +}; > + > +enum lm3556_indic_period { > + INDIC_PERIOD_0 = 0, > + INDIC_PERIOD_1, > + INDIC_PERIOD_2, > + INDIC_PERIOD_3, > + INDIC_PERIOD_4, > + INDIC_PERIOD_5, > + INDIC_PERIOD_6, > + INDIC_PERIOD_7, > +}; > + > +enum lm3556_mode { > + MODES_STASNDBY = 0, > + MODES_INDIC, > + MODES_TORCH, > + MODES_FLASH > +}; > + > +#define INDIC_PATTERN_SIZE 4 > + > +struct indicator { > + u8 blinking; > + u8 period_cnt; > +}; > + > +struct lm3556_chip_data { > + struct i2c_client *client; > + > + struct led_classdev cdev_flash; > + struct led_classdev cdev_torch; > + struct led_classdev cdev_indicator; > + > + struct lm3556_platform_data *pdata; > + struct regmap *regmap; > + struct mutex lock; > + > + unsigned int last_flag; > +}; > + > +/* indicator pattern */ > +static struct indicator indicator_pattern[INDIC_PATTERN_SIZE] = { > + [0] = {(INDIC_N_BLANK_1 << INDIC_N_BLANK_SHIFT) > + | PULSE_TIME_32_MS, INDIC_PERIOD_1}, > + [1] = {(INDIC_N_BLANK_15 << INDIC_N_BLANK_SHIFT) > + | PULSE_TIME_32_MS, INDIC_PERIOD_2}, > + [2] = {(INDIC_N_BLANK_10 << INDIC_N_BLANK_SHIFT) > + | PULSE_TIME_32_MS, INDIC_PERIOD_4}, > + [3] = {(INDIC_N_BLANK_5 << INDIC_N_BLANK_SHIFT) > + | PULSE_TIME_32_MS, INDIC_PERIOD_7}, > +}; > + > +/* chip initialize */ > +static int lm3556_chip_init(struct lm3556_chip_data *chip) > +{ > + unsigned int reg_val; > + int ret; > + struct i2c_client *client = chip->client; > + struct lm3556_platform_data *pdata = chip->pdata; > + > + /* set config register */ > + ret = regmap_read(chip->regmap, REG_CONF, ®_val); > + if (ret < 0) { > + dev_err(&client->dev, "Failed to read REG_CONF Register\n"); > + goto out; > + } > + > + reg_val &= (~EX_PIN_CONTROL_MASK); > + reg_val |= ((pdata->torch_pin_polarity & 0x01) > + << TORCH_PIN_POLARITY_SHIFT); > + reg_val |= ((pdata->strobe_usuage & 0x01) << STROBE_USUAGE_SHIFT); > + reg_val |= ((pdata->strobe_pin_polarity & 0x01) > + << STROBE_PIN_POLARITY_SHIFT); > + reg_val |= ((pdata->tx_pin_polarity & 0x01) << TX_PIN_POLARITY_SHIFT); > + reg_val |= ((pdata->indicator_mode & 0x01) << INDIC_MODE_SHIFT); > + > + ret = regmap_write(chip->regmap, REG_CONF, reg_val); > + if (ret < 0) { > + dev_err(&client->dev, "Failed to write REG_CONF Regisgter\n"); > + goto out; > + } > + > + /* set enable register */ > + ret = regmap_read(chip->regmap, REG_ENABLE, ®_val); > + if (ret < 0) { > + dev_err(&client->dev, "Failed to read REG_ENABLE Register\n"); > + goto out; > + } > + > + reg_val &= (~EX_PIN_ENABLE_MASK); > + reg_val |= ((pdata->torch_pin_en & 0x01) << TORCH_PIN_EN_SHIFT); > + reg_val |= ((pdata->strobe_pin_en & 0x01) << STROBE_PIN_EN_SHIFT); > + reg_val |= ((pdata->tx_pin_en & 0x01) << TX_PIN_EN_SHIFT); > + > + ret = regmap_write(chip->regmap, REG_ENABLE, reg_val); > + if (ret < 0) { > + dev_err(&client->dev, "Failed to write REG_ENABLE Regisgter\n"); > + goto out; > + } > + > +out: > + return ret; > +} > + > +/* chip control */ > +static int lm3556_control(struct lm3556_chip_data *chip, > + u8 brightness, enum lm3556_mode opmode) > +{ > + int ret; > + struct i2c_client *client = chip->client; > + struct lm3556_platform_data *pdata = chip->pdata; > + > + ret = regmap_read(chip->regmap, REG_FLAG, &chip->last_flag); > + if (ret < 0) { > + dev_err(&client->dev, "Failed to read REG_FLAG Register\n"); > + goto out; > + } > + > + if (chip->last_flag) > + dev_info(&client->dev, "Last FLAG is 0x%x\n", chip->last_flag); > + > + /* brightness 0 means off-state */ > + if (!brightness) > + opmode = MODES_STASNDBY; > + > + switch (opmode) { > + case MODES_TORCH: > + ret = regmap_update_bits(chip->regmap, REG_I_CTRL, > + TORCH_I_MASK << TORCH_I_SHIFT, > + (brightness - 1) << TORCH_I_SHIFT); > + > + if (pdata->torch_pin_en) > + opmode |= (TORCH_PIN_EN_MASK << TORCH_PIN_EN_SHIFT); > + break; > + > + case MODES_FLASH: > + ret = regmap_update_bits(chip->regmap, REG_I_CTRL, > + FLASH_I_MASK << FLASH_I_SHIFT, > + (brightness - 1) << FLASH_I_SHIFT); > + break; > + > + case MODES_INDIC: > + ret = regmap_update_bits(chip->regmap, REG_I_CTRL, > + TORCH_I_MASK << TORCH_I_SHIFT, > + (brightness - 1) << TORCH_I_SHIFT); > + break; > + > + case MODES_STASNDBY: > + if (pdata->torch_pin_en) > + opmode |= (TORCH_PIN_EN_MASK << TORCH_PIN_EN_SHIFT); > + break; > + > + default: > + return ret; > + } > + if (ret < 0) { > + dev_err(&client->dev, "Failed to write REG_I_CTRL Register\n"); > + goto out; > + } > + ret = regmap_update_bits(chip->regmap, REG_ENABLE, > + MODE_BITS_MASK << MODE_BITS_SHIFT, > + opmode << MODE_BITS_SHIFT); > + > +out: > + return ret; > +} > + > +/* torch */ > +static void lm3556_torch_brightness_set(struct led_classdev *cdev, > + enum led_brightness brightness) > +{ > + struct lm3556_chip_data *chip = > + container_of(cdev, struct lm3556_chip_data, cdev_torch); > + > + mutex_lock(&chip->lock); > + lm3556_control(chip, brightness, MODES_TORCH); > + mutex_unlock(&chip->lock); > + return; > +} > + > +/* flash */ > +static void lm3556_strobe_brightness_set(struct led_classdev *cdev, > + enum led_brightness brightness) > +{ > + struct lm3556_chip_data *chip = > + container_of(cdev, struct lm3556_chip_data, cdev_flash); > + > + mutex_lock(&chip->lock); > + lm3556_control(chip, brightness, MODES_FLASH); > + mutex_unlock(&chip->lock); > + return; > +} > + > +/* indicator */ > +static void lm3556_indicator_brightness_set(struct led_classdev *cdev, > + enum led_brightness brightness) > +{ > + struct lm3556_chip_data *chip = > + container_of(cdev, struct lm3556_chip_data, cdev_indicator); > + > + mutex_lock(&chip->lock); > + lm3556_control(chip, brightness, MODES_INDIC); > + mutex_unlock(&chip->lock); > + return; > +} > + > +static ssize_t lm3556_indicator_pattern_store(struct device *dev, > + struct device_attribute *devAttr, > + const char *buf, size_t size) > +{ > + ssize_t ret; > + struct i2c_client *client = container_of(dev->parent, > + struct i2c_client, dev); > + struct lm3556_chip_data *chip = i2c_get_clientdata(client); > + unsigned int state; > + > + ret = kstrtouint(buf, 10, &state); > + if (ret) > + goto out; > + if (state > INDIC_PATTERN_SIZE - 1) > + state = INDIC_PATTERN_SIZE - 1; > + > + ret = regmap_write(chip->regmap, REG_INDIC_BLINK, > + indicator_pattern[state].blinking); > + if (ret < 0) { > + dev_err(&client->dev, "Failed to write REG_ENABLE Regisgter\n"); > + goto out; > + } > + > + ret = regmap_write(chip->regmap, REG_INDIC_PERIOD, > + indicator_pattern[state].period_cnt); > + if (ret < 0) { > + dev_err(&client->dev, "Failed to write REG_ENABLE Regisgter\n"); > + goto out; > + } > + > + return size; > +out: > + dev_err(&client->dev, "Indicator pattern doesn't saved\n"); > + return size; > +} > + > +static DEVICE_ATTR(pattern, 0666, NULL, lm3556_indicator_pattern_store); > + > +static const struct regmap_config lm3556_regmap = { > + .reg_bits = 8, > + .val_bits = 8, > +}; > + > +/* module initialize */ > +static int lm3556_probe(struct i2c_client *client, > + const struct i2c_device_id *id) > +{ > + struct lm3556_platform_data *pdata = client->dev.platform_data; > + struct lm3556_chip_data *chip; > + > + int err; > + > + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { > + dev_err(&client->dev, "i2c functionality check fail.\n"); > + return -EOPNOTSUPP; > + } > + > + if (pdata == NULL) { > + dev_err(&client->dev, "Needs Platform Data.\n"); > + return -ENODATA; > + } > + > + chip = > + devm_kzalloc(&client->dev, sizeof(struct lm3556_chip_data), > + GFP_KERNEL); > + if (!chip) > + return -ENOMEM; > + > + chip->client = client; > + chip->pdata = pdata; > + > + chip->regmap = regmap_init_i2c(client, &lm3556_regmap); > + if (IS_ERR(chip->regmap)) { > + err = PTR_ERR(chip->regmap); > + dev_err(&client->dev, "Failed to allocate register map: %d\n", > + err); > + return err; > + } > + > + mutex_init(&chip->lock); > + i2c_set_clientdata(client, chip); > + > + err = lm3556_chip_init(chip); > + if (err < 0) > + goto err_chip_init; > + > + /* flash */ > + chip->cdev_flash.name = "flash"; > + chip->cdev_flash.max_brightness = 16; > + chip->cdev_flash.brightness_set = lm3556_strobe_brightness_set; > + err = led_classdev_register((struct device *) > + &client->dev, &chip->cdev_flash); > + if (err < 0) > + goto err_create_flash_file; > + /* torch */ > + chip->cdev_torch.name = "torch"; > + chip->cdev_torch.max_brightness = 8; > + chip->cdev_torch.brightness_set = lm3556_torch_brightness_set; > + err = led_classdev_register((struct device *) > + &client->dev, &chip->cdev_torch); > + if (err < 0) > + goto err_create_torch_file; > + /* indicator */ > + chip->cdev_indicator.name = "indicator"; > + chip->cdev_indicator.max_brightness = 8; > + chip->cdev_indicator.brightness_set = lm3556_indicator_brightness_set; > + err = led_classdev_register((struct device *) > + &client->dev, &chip->cdev_indicator); > + if (err < 0) > + goto err_create_indicator_file; > + > + err = device_create_file(chip->cdev_indicator.dev, &dev_attr_pattern); > + if (err < 0) > + goto err_create_pattern_file; > + > + dev_info(&client->dev, "LM3556 is initialized\n"); > + return 0; > + > +err_create_pattern_file: > + led_classdev_unregister(&chip->cdev_indicator); > +err_create_indicator_file: > + led_classdev_unregister(&chip->cdev_torch); > +err_create_torch_file: > + led_classdev_unregister(&chip->cdev_flash); > +err_create_flash_file: > +err_chip_init: > + i2c_set_clientdata(client, NULL); Is calling i2c_set_clientdata() necessary here, since i2c_device_probe() does it when i2c driver probe routines returns error? > + return err; > +} > + > +static int lm3556_remove(struct i2c_client *client) > +{ > + struct lm3556_chip_data *chip = i2c_get_clientdata(client); > + > + device_remove_file(chip->cdev_indicator.dev, &dev_attr_pattern); > + led_classdev_unregister(&chip->cdev_indicator); > + led_classdev_unregister(&chip->cdev_torch); > + led_classdev_unregister(&chip->cdev_flash); > + regmap_write(chip->regmap, REG_ENABLE, 0); > + regmap_exit(chip->regmap); > + return 0; > +} > + > +static const struct i2c_device_id lm3556_id[] = { > + {LM3556_NAME, 0}, > + {} > +}; > + > +MODULE_DEVICE_TABLE(i2c, lm3556_id); > + > +static struct i2c_driver lm3556_i2c_driver = { > + .driver = { > + .name = LM3556_NAME, > + .owner = THIS_MODULE, > + .pm = NULL, > + }, > + .probe = lm3556_probe, > + .remove = __devexit_p(lm3556_remove), > + .id_table = lm3556_id, > +}; > + > +static int __init lm3556_init(void) > +{ > + return i2c_add_driver(&lm3556_i2c_driver); > +} > + > +static void __exit lm3556_exit(void) > +{ > + i2c_del_driver(&lm3556_i2c_driver); > +} > + > +module_init(lm3556_init); > +module_exit(lm3556_exit); > + > +MODULE_DESCRIPTION("Texas Instruments Flash Lighting driver for LM3556"); > +MODULE_AUTHOR("Daniel Jeong "); > +MODULE_AUTHOR("G.Shark Jeong "); > +MODULE_LICENSE("GPL v2"); > diff --git a/include/linux/platform_data/leds-lm3556.h b/include/linux/platform_data/leds-lm3556.h > new file mode 100644 > index 0000000..4b4e7d6 > --- /dev/null > +++ b/include/linux/platform_data/leds-lm3556.h > @@ -0,0 +1,50 @@ > +/* > + * Simple driver for Texas Instruments LM3556 LED Flash driver chip (Rev0x03) > + * Copyright (C) 2012 Texas Instruments > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License version 2 as > + * published by the Free Software Foundation. > + * > + */ > + > +#ifndef __LINUX_LM3556_H > +#define __LINUX_LM3556_H > + > +#define LM3556_NAME "leds-lm3556" > + > +enum lm3556_pin_polarity { > + PIN_LOW_ACTIVE = 0, > + PIN_HIGH_ACTIVE, > +}; > + > +enum lm3556_pin_enable { > + PIN_DISABLED = 0, > + PIN_ENABLED, > +}; > + > +enum lm3556_strobe_usuage { > + STROBE_EDGE_DETECT = 0, > + STROBE_LEVEL_DETECT, > +}; > + > +enum lm3556_indic_mode { > + INDIC_MODE_INTERNAL = 0, > + INDIC_MODE_EXTERNAL, > +}; > + > +struct lm3556_platform_data { > + enum lm3556_pin_enable torch_pin_en; > + enum lm3556_pin_polarity torch_pin_polarity; > + > + enum lm3556_strobe_usuage strobe_usuage; > + enum lm3556_pin_enable strobe_pin_en; > + enum lm3556_pin_polarity strobe_pin_polarity; > + > + enum lm3556_pin_enable tx_pin_en; > + enum lm3556_pin_polarity tx_pin_polarity; > + > + enum lm3556_indic_mode indicator_mode; > +}; > + > +#endif /* __LINUX_LM3556_H */ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/