leds: Add new LED driver for lm3642 chips

This driver is a general version for LM642 led chip of TI.

LM3642 :
The LM3642 is a 4MHz fixed-frequency synchronous boost
converter plus 1.5A constant current driver for a high-current
white LED.
The LM3642 is controlled via an I2C-compatible interface.

Signed-off-by: G.Shark Jeong <gshark.jeong@gmail.com>
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>

1 files changed, 38 insertions, 0 deletions

diff --git a/include/linux/platform_data/leds-lm3642.h b/include/linux/platform_data/leds-lm3642.h
new file mode 100644
index 00000000000..72d6ee6ade5
--- /dev/null
+++ b/include/linux/platform_data/leds-lm3642.h
@@ -0,0 +1,38 @@
+/*
+* Copyright (C) 2012 Texas Instruments
+*
+* License Terms: GNU General Public License v2
+*
+* Simple driver for Texas Instruments LM3642 LED driver chip
+*
+* Author: G.Shark Jeong <gshark.jeong@gmail.com>
+*         Daniel Jeong <daniel.jeong@ti.com>
+*/
+
+#ifndef __LINUX_LM3642_H
+#define __LINUX_LM3642_H
+
+#define LM3642_NAME "leds-lm3642"
+
+enum lm3642_torch_pin_enable {
+        LM3642_TORCH_PIN_DISABLE = 0x00,
+        LM3642_TORCH_PIN_ENABLE = 0x10,
+};
+
+enum lm3642_strobe_pin_enable {
+        LM3642_STROBE_PIN_DISABLE = 0x00,
+        LM3642_STROBE_PIN_ENABLE = 0x20,
+};
+
+enum lm3642_tx_pin_enable {
+        LM3642_TX_PIN_DISABLE = 0x00,
+        LM3642_TX_PIN_ENABLE = 0x40,
+};
+
+struct lm3642_platform_data {
+        enum lm3642_torch_pin_enable torch_pin;
+        enum lm3642_strobe_pin_enable strobe_pin;
+        enum lm3642_tx_pin_enable tx_pin;
+};
+
+#endif /* __LINUX_LM3642_H */