diff options
| author | G.Shark Jeong <gshark.jeong@gmail.com> | 2012-10-04 17:12:55 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-06 03:04:53 +0900 |
| commit | 0f59858d511960caefb42c4535dc73c2c5f3136c (patch) | |
| tree | dd0936348366a9f9b7d03d5706a50217eab89e09 /include/linux/platform_data | |
| parent | 0c2a665a648ea74879ce6333d3a31a96a7c361ce (diff) | |
backlight: add new lm3639 backlight driver
This driver is a general version for LM3639 backlgiht + flash driver chip
of TI.
LM3639:
The LM3639 is a single chip LCD Display Backlight driver + white LED
Camera driver. Programming is done over an I2C compatible interface.
www.ti.com
[akpm@linux-foundation.org: code layout tweaks]
Signed-off-by: G.Shark Jeong <gshark.jeong@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Daniel Jeong <daniel.jeong@ti.com>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/platform_data')
| -rw-r--r-- | include/linux/platform_data/lm3639_bl.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/include/linux/platform_data/lm3639_bl.h b/include/linux/platform_data/lm3639_bl.h new file mode 100644 index 000000000000..5234cd5ed166 --- /dev/null +++ b/include/linux/platform_data/lm3639_bl.h @@ -0,0 +1,69 @@ +/* +* Simple driver for Texas Instruments LM3630 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. +* +*/ + +#ifndef __LINUX_LM3639_H +#define __LINUX_LM3639_H + +#define LM3639_NAME "lm3639_bl" + +enum lm3639_pwm { + LM3639_PWM_DISABLE = 0x00, + LM3639_PWM_EN_ACTLOW = 0x48, + LM3639_PWM_EN_ACTHIGH = 0x40, +}; + +enum lm3639_strobe { + LM3639_STROBE_DISABLE = 0x00, + LM3639_STROBE_EN_ACTLOW = 0x10, + LM3639_STROBE_EN_ACTHIGH = 0x30, +}; + +enum lm3639_txpin { + LM3639_TXPIN_DISABLE = 0x00, + LM3639_TXPIN_EN_ACTLOW = 0x04, + LM3639_TXPIN_EN_ACTHIGH = 0x0C, +}; + +enum lm3639_fleds { + LM3639_FLED_DIASBLE_ALL = 0x00, + LM3639_FLED_EN_1 = 0x40, + LM3639_FLED_EN_2 = 0x20, + LM3639_FLED_EN_ALL = 0x60, +}; + +enum lm3639_bleds { + LM3639_BLED_DIASBLE_ALL = 0x00, + LM3639_BLED_EN_1 = 0x10, + LM3639_BLED_EN_2 = 0x08, + LM3639_BLED_EN_ALL = 0x18, +}; +enum lm3639_bled_mode { + LM3639_BLED_MODE_EXPONETIAL = 0x00, + LM3639_BLED_MODE_LINEAR = 0x10, +}; + +struct lm3639_platform_data { + unsigned int max_brt_led; + unsigned int init_brt_led; + + /* input pins */ + enum lm3639_pwm pin_pwm; + enum lm3639_strobe pin_strobe; + enum lm3639_txpin pin_tx; + + /* output pins */ + enum lm3639_fleds fled_pins; + enum lm3639_bleds bled_pins; + enum lm3639_bled_mode bled_mode; + + void (*pwm_set_intensity) (int brightness, int max_brightness); + int (*pwm_get_intensity) (void); +}; +#endif /* __LINUX_LM3639_H */ |