lkml.org 
[lkml]   [2012]   [Aug]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    Date
    SubjectRe: [PATCH 1/1] leds: Add LED driver for lm355x chips
    On Wed, Aug 1, 2012 at 8:05 PM, G.Shark Jeong <gshark.jeong@gmail.com> wrote:
    > From: "G.Shark Jeong" <gshark.jeong@gmail.com>
    >
    > LM3554 and LM3556 have similar functions but very different register map.
    > This driver is a general version for LM355x,lm3554 and lm3556,led chips of TI.
    > lm3556 driver can be replaced by this driver.
    >
    > LM3554 :
    > The LM3554 is a 2 MHz fixed-frequency synchronous boost
    > converter with 1.2A dual high side led drivers.
    > Datasheet: www.ti.com/lit/ds/symlink/lm3554.pdf
    >
    > 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
    >
    > Signed-off-by: G.Shark Jeong <gshark.jeong@gmail.com>
    > ---

    Thanks, I think basically I'm OK for this patch, just some small
    comments as below.

    -Bryan

    > drivers/leds/Kconfig | 8 +-
    > drivers/leds/Makefile | 2 +-
    > drivers/leds/leds-lm355x.c | 529 +++++++++++++++++++++++++++++
    > include/linux/platform_data/leds-lm355x.h | 66 ++++
    > 4 files changed, 600 insertions(+), 5 deletions(-)
    > create mode 100644 drivers/leds/leds-lm355x.c
    > create mode 100644 include/linux/platform_data/leds-lm355x.h
    >
    > diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
    > index c96bbaa..4f6ced2 100644
    > --- a/drivers/leds/Kconfig
    > +++ b/drivers/leds/Kconfig
    > @@ -422,13 +422,13 @@ 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"
    > +config LEDS_LM355x
    > + tristate "LED support for LM355x Chips, LM3554 and LM3556"
    > depends on LEDS_CLASS && I2C
    > select REGMAP_I2C
    > help
    > - This option enables support for LEDs connected to LM3556.
    > - LM3556 includes Torch, Flash and Indicator functions.
    > + This option enables support for LEDs connected to LM355x.
    > + LM355x includes Torch, Flash and Indicator functions.
    >
    > config LEDS_OT200
    > tristate "LED support for the Bachmann OT200"
    > diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
    > index a4429a9..b57a021 100644
    > --- a/drivers/leds/Makefile
    > +++ b/drivers/leds/Makefile
    > @@ -48,7 +48,7 @@ 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

    You removed leds-lm3556.o here, but didn't remove the real C file in
    this patchset

    > +obj-$(CONFIG_LEDS_LM355x) += leds-lm355x.o
    > obj-$(CONFIG_LEDS_BLINKM) += leds-blinkm.o
    >
    > # LED SPI Drivers
    > diff --git a/drivers/leds/leds-lm355x.c b/drivers/leds/leds-lm355x.c
    > new file mode 100644
    > index 0000000..5cdbbb4
    > --- /dev/null
    > +++ b/drivers/leds/leds-lm355x.c
    > @@ -0,0 +1,529 @@
    > +/*
    > +* Simple driver for Texas Instruments LM355x LED Flash driver chip
    > +* 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.
    > +*/
    > +
    > +#include <linux/module.h>
    > +#include <linux/delay.h>
    > +#include <linux/i2c.h>
    > +#include <linux/gpio.h>
    > +#include <linux/leds.h>
    > +#include <linux/slab.h>
    > +#include <linux/platform_device.h>
    > +#include <linux/fs.h>
    > +#include <linux/regmap.h>
    > +#include <linux/platform_data/leds-lm355x.h>
    > +
    > +enum lm355x_type {
    > + CHIP_LM3554 = 0,
    > + CHIP_LM3556,
    > +};
    > +
    > +enum lm355x_regs {
    > + REG_FLAG = 0,
    > + REG_TORCH_CFG,
    > + REG_TORCH_CTRL,
    > + REG_STROBE_CFG,
    > + REG_FLASH_CTRL,
    > + REG_INDI_CFG,
    > + REG_INDI_CTRL,
    > + REG_OPMODE,
    > + REG_MAX,
    > +};
    > +
    > +/* operation mode */
    > +enum lm355x_mode {
    > + MODE_SHDN = 0,
    > + MODE_INDIC,
    > + MODE_TORCH,
    > + MODE_FLASH
    > +};
    > +
    > +/* register map info. */
    > +struct lm355x_reg_data {
    > + u8 regno;
    > + u8 mask;
    > + u8 shift;
    > +};
    > +
    > +struct lm355x_chip_data {
    > + struct device *dev;
    > + enum lm355x_type type;
    > +
    > + struct led_classdev cdev_flash;
    > + struct led_classdev cdev_torch;
    > + struct led_classdev cdev_indicator;
    > +
    > + struct lm355x_platform_data *pdata;
    > + struct regmap *regmap;
    > + struct mutex lock;
    > +
    > + unsigned int last_flag;
    > + struct lm355x_reg_data *regs;
    > +};
    > +
    > +/* specific indicator function for lm3556 */
    > +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,
    > +};
    > +
    > +#define INDIC_PATTERN_SIZE 4
    > +
    > +struct indicator {
    > + u8 blinking;
    > + u8 period_cnt;
    > +};
    > +
    > +/* indicator pattern data only for lm3556 */
    > +static struct indicator indicator_pattern[INDIC_PATTERN_SIZE] = {
    > + [0] = {(INDIC_N_BLANK_1 << 4) | PULSE_TIME_32_MS, INDIC_PERIOD_1},
    > + [1] = {(INDIC_N_BLANK_15 << 4) | PULSE_TIME_32_MS, INDIC_PERIOD_2},
    > + [2] = {(INDIC_N_BLANK_10 << 4) | PULSE_TIME_32_MS, INDIC_PERIOD_4},
    > + [3] = {(INDIC_N_BLANK_5 << 4) | PULSE_TIME_32_MS, INDIC_PERIOD_7},
    > +};
    > +
    > +static struct lm355x_reg_data lm3554_regs[REG_MAX] = {
    > + [REG_FLAG] = {0xD0, 0xBF, 0},
    > + [REG_TORCH_CFG] = {0xE0, 0x80, 7},
    > + [REG_TORCH_CTRL] = {0xA0, 0x38, 3},
    > + [REG_STROBE_CFG] = {0xE0, 0x04, 2},
    > + [REG_FLASH_CTRL] = {0xB0, 0x78, 3},
    > + [REG_INDI_CFG] = {0xE0, 0x08, 3},
    > + [REG_INDI_CTRL] = {0xA0, 0xC0, 6},
    > + [REG_OPMODE] = {0xA0, 0x03, 0},
    > +};
    > +
    > +static struct lm355x_reg_data lm3556_regs[REG_MAX] = {
    > + [REG_FLAG] = {0x0B, 0xFF, 0},
    > + [REG_TORCH_CFG] = {0x0A, 0x10, 4},
    > + [REG_TORCH_CTRL] = {0x09, 0x70, 4},
    > + [REG_STROBE_CFG] = {0x0A, 0x20, 5},
    > + [REG_FLASH_CTRL] = {0x09, 0x0F, 0},
    > + [REG_INDI_CFG] = {0xFF, 0xFF, 0},
    > + [REG_INDI_CTRL] = {0x09, 0x70, 4},
    > + [REG_OPMODE] = {0x0A, 0x03, 0},
    > +};
    > +
    > +static char lm355x_name[][I2C_NAME_SIZE] = {
    > + [CHIP_LM3554] = LM3554_NAME,
    > + [CHIP_LM3556] = LM3556_NAME,
    > +};
    > +
    > +/* chip initialize */
    > +static int __devinit lm355x_chip_init(struct lm355x_chip_data *chip)
    > +{
    > + int ret;
    > + unsigned int reg_val;
    > + struct lm355x_platform_data *pdata = chip->pdata;
    > +
    > + /* input and output pins configuration */
    > + switch (chip->type) {
    > + case CHIP_LM3554:
    > + reg_val = pdata->pin_tx2 | pdata->ntc_pin;
    > + ret = regmap_update_bits(chip->regmap, 0xE0, 0x28, reg_val);
    > + if (ret < 0)
    > + goto out;
    > + reg_val = pdata->pass_mode;
    > + ret = regmap_update_bits(chip->regmap, 0xA0, 0x04, reg_val);
    > + if (ret < 0)
    > + goto out;
    > + break;
    > +
    > + case CHIP_LM3556:
    > + reg_val = pdata->pin_tx2 | pdata->ntc_pin | pdata->pass_mode;
    > + ret = regmap_update_bits(chip->regmap, 0x0A, 0xC4, reg_val);
    > + if (ret < 0)
    > + goto out;
    > + break;
    > + default:
    > + return -ENODATA;
    > + }
    > +
    > + return ret;
    > +out:
    > + dev_err(chip->dev, "%s:i2c access fail to register\n", __func__);
    > + return ret;
    > +}
    > +
    > +/* chip control */
    > +static void lm355x_control(struct lm355x_chip_data *chip,
    > + u8 brightness, enum lm355x_mode opmode)
    > +{
    > + int ret;
    > + unsigned int reg_val;
    > + struct lm355x_platform_data *pdata = chip->pdata;
    > + struct lm355x_reg_data *preg = chip->regs;
    > +
    > + ret = regmap_read(chip->regmap, preg[REG_FLAG].regno, &chip->last_flag);
    > + if (ret < 0)
    > + goto out;
    > + if (chip->last_flag & preg[REG_FLAG].mask)
    > + dev_info(chip->dev, "%s Last FLAG is 0x%x\n",
    > + lm355x_name[chip->type],
    > + chip->last_flag & preg[REG_FLAG].mask);
    > + /* brightness 0 means shutdown */
    > + if (!brightness)
    > + opmode = MODE_SHDN;
    > +
    > + switch (opmode) {
    > + case MODE_TORCH:
    > + ret =
    > + regmap_update_bits(chip->regmap, preg[REG_TORCH_CTRL].regno,
    > + preg[REG_TORCH_CTRL].mask,
    > + (brightness -
    > + 1) << preg[REG_TORCH_CTRL].shift);
    > + if (ret < 0)
    > + goto out;
    > +
    > + if (pdata->pin_tx1 != LM355x_PIN_TORCH_DISABLE) {
    > + ret =
    > + regmap_update_bits(chip->regmap,
    > + preg[REG_TORCH_CFG].regno,
    > + preg[REG_TORCH_CFG].mask,
    > + 0x01 <<
    > + preg[REG_TORCH_CFG].shift);
    > + if (ret < 0)
    > + goto out;
    > + opmode = MODE_SHDN;
    > + dev_info(chip->dev,
    > + "torch brt is set - ext. torch pin mode\n");
    > + }
    > + break;
    > +
    > + case MODE_FLASH:
    > +
    > + ret =
    > + regmap_update_bits(chip->regmap, preg[REG_FLASH_CTRL].regno,
    > + preg[REG_FLASH_CTRL].mask,
    > + (brightness -
    > + 1) << preg[REG_FLASH_CTRL].shift);
    > + if (ret < 0)
    > + goto out;
    > +
    > + if (pdata->pin_strobe != LM355x_PIN_STROBE_DISABLE) {
    > + if (chip->type == CHIP_LM3554)
    > + reg_val = 0x00;
    > + else
    > + reg_val = 0x01;
    > + ret =
    > + regmap_update_bits(chip->regmap,
    > + preg[REG_STROBE_CFG].regno,
    > + preg[REG_STROBE_CFG].mask,
    > + reg_val <<
    > + preg[REG_STROBE_CFG].shift);
    > + if (ret < 0)
    > + goto out;
    > + opmode = MODE_SHDN;
    > + dev_info(chip->dev,
    > + "flash brt is set - ext. strobe pin mode\n");
    > + }
    > + break;
    > +
    > + case MODE_INDIC:
    > + ret =
    > + regmap_update_bits(chip->regmap, preg[REG_INDI_CTRL].regno,
    > + preg[REG_INDI_CTRL].mask,
    > + (brightness - 1)
    > + << preg[REG_INDI_CTRL].shift);
    > + if (ret < 0)
    > + goto out;
    > +
    > + if (pdata->pin_tx2 != LM355x_PIN_TX_DISABLE) {
    > + ret =
    > + regmap_update_bits(chip->regmap,
    > + preg[REG_INDI_CFG].regno,
    > + preg[REG_INDI_CFG].mask,
    > + 0x01 <<
    > + preg[REG_INDI_CFG].shift);
    > + if (ret < 0)
    > + goto out;
    > + opmode = MODE_SHDN;
    > + }
    > + break;
    > + case MODE_SHDN:
    > + break;
    > + default:
    > + return;
    > + }
    > + /* operation mode control */
    > + ret = regmap_update_bits(chip->regmap, preg[REG_OPMODE].regno,
    > + preg[REG_OPMODE].mask,
    > + opmode << preg[REG_OPMODE].shift);
    > + if (ret < 0)
    > + goto out;
    > + return;
    > +out:
    > + dev_err(chip->dev, "%s:i2c access fail to register\n", __func__);
    > + return;
    > +}
    > +
    > +/* torch */
    > +static void lm355x_torch_brightness_set(struct led_classdev *cdev,
    > + enum led_brightness brightness)
    > +{
    > + struct lm355x_chip_data *chip =
    > + container_of(cdev, struct lm355x_chip_data, cdev_torch);
    > +
    > + mutex_lock(&chip->lock);
    > + lm355x_control(chip, brightness, MODE_TORCH);
    > + mutex_unlock(&chip->lock);
    > +}
    > +
    > +/* flash */
    > +static void lm355x_strobe_brightness_set(struct led_classdev *cdev,
    > + enum led_brightness brightness)
    > +{
    > + struct lm355x_chip_data *chip =
    > + container_of(cdev, struct lm355x_chip_data, cdev_flash);
    > +
    > + mutex_lock(&chip->lock);
    > + lm355x_control(chip, brightness, MODE_FLASH);
    > + mutex_unlock(&chip->lock);
    > +}
    > +
    > +/* indicator */
    > +static void lm355x_indicator_brightness_set(struct led_classdev *cdev,
    > + enum led_brightness brightness)
    > +{
    > + struct lm355x_chip_data *chip =
    > + container_of(cdev, struct lm355x_chip_data, cdev_indicator);
    > +
    > + mutex_lock(&chip->lock);
    > + lm355x_control(chip, brightness, MODE_INDIC);
    > + mutex_unlock(&chip->lock);
    > +}
    > +
    > +/* indicator pattern only for lm3556*/
    > +static ssize_t lm3556_indicator_pattern_store(struct device *dev,
    > + struct device_attribute *devAttr,
    > + const char *buf, size_t size)
    > +{
    > + ssize_t ret;
    > + struct led_classdev *led_cdev = dev_get_drvdata(dev);
    > + struct lm355x_chip_data *chip =
    > + container_of(led_cdev, struct lm355x_chip_data, cdev_indicator);
    > + 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, 0x04,
    > + indicator_pattern[state].blinking);
    > + if (ret < 0)
    > + goto out;
    > +
    > + ret = regmap_write(chip->regmap, 0x05,
    > + indicator_pattern[state].period_cnt);
    > + if (ret < 0)
    > + goto out;
    > +
    > + return size;
    > +out:
    > + dev_err(chip->dev, "%s:i2c access fail to register\n", __func__);
    > + return size;
    > +}
    > +
    > +static DEVICE_ATTR(pattern, 0666, NULL, lm3556_indicator_pattern_store);
    > +
    > +static const struct regmap_config lm355x_regmap = {
    > + .reg_bits = 8,
    > + .val_bits = 8,
    > + .max_register = 0xFF,
    > +};
    > +
    > +/* module initialize */
    > +static int __devinit lm355x_probe(struct i2c_client *client,
    > + const struct i2c_device_id *id)
    > +{
    > + struct lm355x_platform_data *pdata = client->dev.platform_data;
    > + struct lm355x_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 lm355x_chip_data), GFP_KERNEL);
    > + if (!chip)
    > + return -ENOMEM;
    > +
    > + chip->dev = &client->dev;
    > + chip->type = id->driver_data;
    > + switch (id->driver_data) {
    > + case CHIP_LM3554:
    > + chip->regs = lm3554_regs;
    > + break;
    > + case CHIP_LM3556:
    > + chip->regs = lm3556_regs;
    > + break;
    > + default:
    > + return -ENOSYS;
    > + }
    > + chip->pdata = pdata;
    > + chip->regmap = devm_regmap_init_i2c(client, &lm355x_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 = lm355x_chip_init(chip);
    > + if (err < 0)
    > + goto err_out;
    > +
    > + /* flash */
    > + chip->cdev_flash.name = "flash";
    > + chip->cdev_flash.max_brightness = 16;
    > + chip->cdev_flash.brightness_set = lm355x_strobe_brightness_set;
    > + err = led_classdev_register((struct device *)
    > + &client->dev, &chip->cdev_flash);
    > + if (err < 0)
    > + goto err_out;
    > + /* torch */
    > + chip->cdev_torch.name = "torch";
    > + chip->cdev_torch.max_brightness = 8;
    > + chip->cdev_torch.brightness_set = lm355x_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";
    > + if (id->driver_data == CHIP_LM3554)
    > + chip->cdev_indicator.max_brightness = 4;
    > + else
    > + chip->cdev_indicator.max_brightness = 8;
    > + chip->cdev_indicator.brightness_set = lm355x_indicator_brightness_set;
    > + err = led_classdev_register((struct device *)
    > + &client->dev, &chip->cdev_indicator);
    > + if (err < 0)
    > + goto err_create_indicator_file;
    > + /* indicator pattern control only for LM3554 */
    > + if (id->driver_data == CHIP_LM3556) {

    The code is conflicting with comments, is indicator pattern control
    only for LM3554 or LM3556?

    > + err =
    > + device_create_file(chip->cdev_indicator.dev,
    > + &dev_attr_pattern);
    > + if (err < 0)
    > + goto err_create_pattern_file;
    > + }
    > +
    > + dev_info(&client->dev, "%s is initialized\n",
    > + lm355x_name[id->driver_data]);
    > + 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_out:
    > + return err;
    > +}
    > +
    > +static int __devexit lm355x_remove(struct i2c_client *client)
    > +{
    > + struct lm355x_chip_data *chip = i2c_get_clientdata(client);
    > + struct lm355x_reg_data *preg = chip->regs;
    > +
    > + regmap_write(chip->regmap, preg[REG_OPMODE].regno, 0);
    > + if (chip->type == CHIP_LM3556)
    > + 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);
    > +
    > + dev_info(&client->dev, "%s is removed\n", lm355x_name[chip->type]);
    > +
    > + return 0;
    > +}
    > +
    > +static const struct i2c_device_id lm355x_id[] = {
    > + {LM3554_NAME, CHIP_LM3554},
    > + {LM3556_NAME, CHIP_LM3556},
    > + {}
    > +};
    > +
    > +MODULE_DEVICE_TABLE(i2c, lm355x_id);
    > +
    > +static struct i2c_driver lm355x_i2c_driver = {
    > + .driver = {
    > + .name = LM355x_NAME,
    > + .owner = THIS_MODULE,
    > + .pm = NULL,
    > + },
    > + .probe = lm355x_probe,
    > + .remove = __devexit_p(lm355x_remove),
    > + .id_table = lm355x_id,
    > +};
    > +
    > +module_i2c_driver(lm355x_i2c_driver);
    > +
    > +MODULE_DESCRIPTION("Texas Instruments Flash Lighting driver for LM355x");
    > +MODULE_AUTHOR("Daniel Jeong <daniel.jeong@ti.com>");
    > +MODULE_AUTHOR("G.Shark Jeong <gshark.jeong@gmail.com>");
    > +MODULE_LICENSE("GPL v2");
    > diff --git a/include/linux/platform_data/leds-lm355x.h b/include/linux/platform_data/leds-lm355x.h
    > new file mode 100644
    > index 0000000..b88724b
    > --- /dev/null
    > +++ b/include/linux/platform_data/leds-lm355x.h
    > @@ -0,0 +1,66 @@
    > +/*
    > + * Copyright (C) 2012 Texas Instruments
    > + *
    > + * License Terms: GNU General Public License v2
    > + *
    > + * Simple driver for Texas Instruments LM355x LED driver chip
    > + *
    > + * Author: G.Shark Jeong <gshark.jeong@gmail.com>
    > + * Daniel Jeong <daniel.jeong@ti.com>
    > + */
    > +
    > +#define LM355x_NAME "leds-lm355x"
    > +#define LM3554_NAME "leds-lm3554"
    > +#define LM3556_NAME "leds-lm3556"
    > +
    > +/* lm3554 : strobe def. on */
    > +enum lm355x_strobe {
    > + LM355x_PIN_STROBE_DISABLE = 0x00,
    > + LM355x_PIN_STROBE_ENABLE = 0x01,
    > +};
    > +
    > +enum lm355x_torch {
    > + LM355x_PIN_TORCH_DISABLE = 0,
    > + LM3554_PIN_TORCH_ENABLE = 0x80,
    > + LM3556_PIN_TORCH_ENABLE = 0x10,
    > +};
    > +
    > +enum lm355x_tx2 {
    > + LM355x_PIN_TX_DISABLE = 0,
    > + LM3554_PIN_TX_ENABLE = 0x20,
    > + LM3556_PIN_TX_ENABLE = 0x40,
    > +};
    > +
    > +enum lm355x_ntc {
    > + LM355x_PIN_NTC_DISABLE = 0,
    > + LM3554_PIN_NTC_ENABLE = 0x08,
    > + LM3556_PIN_NTC_ENABLE = 0x80,
    > +};
    > +
    > +enum lm355x_pmode {
    > + LM355x_PMODE_DISABLE = 0,
    > + LM355x_PMODE_ENABLE = 0x04,
    > +};
    > +
    > +/*
    > + * struct lm3554_platform_data
    > + * @pin_strobe: strobe input
    > + * @pin_torch : input pin
    > + * lm3554-tx1/torch/gpio1
    > + * lm3556-torch
    > + * @pin_tx2 : input pin
    > + * lm3554-envm/tx2/gpio2
    > + * lm3556-tx pin
    > + * @ntc_pin : output pin
    > + * lm3554-ledi/ntc
    > + * lm3556-temp pin
    > + * @pass_mode : pass mode
    > + */
    > +struct lm355x_platform_data {
    > + enum lm355x_strobe pin_strobe;
    > + enum lm355x_torch pin_tx1;
    > + enum lm355x_tx2 pin_tx2;
    > + enum lm355x_ntc ntc_pin;
    > +
    > + enum lm355x_pmode pass_mode;
    > +};
    > --
    > 1.7.5.4
    >


    \
     
     \ /
      Last update: 2012-08-07 05:21    [W:0.079 / U:0.456 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site