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b98d13c725
This driver is a general version for LM355x,lm3554 and lm3556,led chips of TI. 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 (bryan.wu@canonical.com: use flush_work() to replace flush_work_sync() which is deprecated) Signed-off-by: G.Shark Jeong <gshark.jeong@gmail.com> Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
67 lines
1.4 KiB
C
67 lines
1.4 KiB
C
/*
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* Copyright (C) 2012 Texas Instruments
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*
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* License Terms: GNU General Public License v2
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*
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* Simple driver for Texas Instruments LM355x LED driver chip
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*
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* Author: G.Shark Jeong <gshark.jeong@gmail.com>
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* Daniel Jeong <daniel.jeong@ti.com>
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*/
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#define LM355x_NAME "leds-lm355x"
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#define LM3554_NAME "leds-lm3554"
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#define LM3556_NAME "leds-lm3556"
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/* lm3554 : strobe def. on */
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enum lm355x_strobe {
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LM355x_PIN_STROBE_DISABLE = 0x00,
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LM355x_PIN_STROBE_ENABLE = 0x01,
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};
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enum lm355x_torch {
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LM355x_PIN_TORCH_DISABLE = 0,
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LM3554_PIN_TORCH_ENABLE = 0x80,
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LM3556_PIN_TORCH_ENABLE = 0x10,
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};
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enum lm355x_tx2 {
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LM355x_PIN_TX_DISABLE = 0,
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LM3554_PIN_TX_ENABLE = 0x20,
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LM3556_PIN_TX_ENABLE = 0x40,
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};
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enum lm355x_ntc {
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LM355x_PIN_NTC_DISABLE = 0,
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LM3554_PIN_NTC_ENABLE = 0x08,
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LM3556_PIN_NTC_ENABLE = 0x80,
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};
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enum lm355x_pmode {
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LM355x_PMODE_DISABLE = 0,
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LM355x_PMODE_ENABLE = 0x04,
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};
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/*
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* struct lm3554_platform_data
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* @pin_strobe: strobe input
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* @pin_torch : input pin
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* lm3554-tx1/torch/gpio1
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* lm3556-torch
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* @pin_tx2 : input pin
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* lm3554-envm/tx2/gpio2
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* lm3556-tx pin
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* @ntc_pin : output pin
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* lm3554-ledi/ntc
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* lm3556-temp pin
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* @pass_mode : pass mode
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*/
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struct lm355x_platform_data {
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enum lm355x_strobe pin_strobe;
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enum lm355x_torch pin_tx1;
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enum lm355x_tx2 pin_tx2;
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enum lm355x_ntc ntc_pin;
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enum lm355x_pmode pass_mode;
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};
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