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| author |   G.Shark Jeong <gshark.jeong@gmail.com> | 2012-06-22 08:12:06 +0800 |
|---|---|---|
| committer |   Bryan Wu <bryan.wu@canonical.com> | 2012-07-24 07:52:35 +0800 |
| commit | 32abb4788d3fff69fa242c7850e39ec1418df4f4 (patch) | |
| tree | 26441f5ebda1a77b7f0f72fb6b487634b2e623c0 /include | |
| parent | leds: [trivial]Remove unnecesary return (diff) | |
| download | linux-dev-32abb4788d3fff69fa242c7850e39ec1418df4f4.tar.xz linux-dev-32abb4788d3fff69fa242c7850e39ec1418df4f4.zip | |
leds: Add LED driver for lm3556 chip
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
(bryan.wu@canonical.com: use module_i2c_driver() rather than
lm3556_init/lm3556_exit for code simplicity; fixed some typo
pointed out by Rob Landley)
Signed-off-by: G.Shark Jeong <gshark.jeong@gmail.com>
Reviewed-by: Axel Lin <axel.lin@gmail.com>
Reviewed-by: Kim, Milo <Milo.Kim@ti.com>
Acked-by: Rob Landley <rob@landley.net>
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/platform_data/leds-lm3556.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/include/linux/platform_data/leds-lm3556.h b/include/linux/platform_data/leds-lm3556.h new file mode 100644 index 000000000000..4b4e7d6b0527 --- /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 */ |