v4.19.13 snapshot.
diff --git a/include/media/i2c/lm3646.h b/include/media/i2c/lm3646.h
new file mode 100644
index 0000000..724c100
--- /dev/null
+++ b/include/media/i2c/lm3646.h
@@ -0,0 +1,87 @@
+/*
+ * include/media/i2c/lm3646.h
+ *
+ * Copyright (C) 2014 Texas Instruments
+ *
+ * Contact: Daniel Jeong <gshark.jeong@gmail.com>
+ * Ldd-Mlp <ldd-mlp@list.ti.com>
+ *
+ * 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 __LM3646_H__
+#define __LM3646_H__
+
+#include <media/v4l2-subdev.h>
+
+#define LM3646_NAME "lm3646"
+#define LM3646_I2C_ADDR_REV1 (0x67)
+#define LM3646_I2C_ADDR_REV0 (0x63)
+
+/* TOTAL FLASH Brightness Max
+ * min 93350uA, step 93750uA, max 1499600uA
+ */
+#define LM3646_TOTAL_FLASH_BRT_MIN 93350
+#define LM3646_TOTAL_FLASH_BRT_STEP 93750
+#define LM3646_TOTAL_FLASH_BRT_MAX 1499600
+#define LM3646_TOTAL_FLASH_BRT_uA_TO_REG(a) \
+ ((a) < LM3646_TOTAL_FLASH_BRT_MIN ? 0 : \
+ ((((a) - LM3646_TOTAL_FLASH_BRT_MIN) / LM3646_TOTAL_FLASH_BRT_STEP)))
+
+/* TOTAL TORCH Brightness Max
+ * min 23040uA, step 23430uA, max 187100uA
+ */
+#define LM3646_TOTAL_TORCH_BRT_MIN 23040
+#define LM3646_TOTAL_TORCH_BRT_STEP 23430
+#define LM3646_TOTAL_TORCH_BRT_MAX 187100
+#define LM3646_TOTAL_TORCH_BRT_uA_TO_REG(a) \
+ ((a) < LM3646_TOTAL_TORCH_BRT_MIN ? 0 : \
+ ((((a) - LM3646_TOTAL_TORCH_BRT_MIN) / LM3646_TOTAL_TORCH_BRT_STEP)))
+
+/* LED1 FLASH Brightness
+ * min 23040uA, step 11718uA, max 1499600uA
+ */
+#define LM3646_LED1_FLASH_BRT_MIN 23040
+#define LM3646_LED1_FLASH_BRT_STEP 11718
+#define LM3646_LED1_FLASH_BRT_MAX 1499600
+#define LM3646_LED1_FLASH_BRT_uA_TO_REG(a) \
+ ((a) <= LM3646_LED1_FLASH_BRT_MIN ? 0 : \
+ ((((a) - LM3646_LED1_FLASH_BRT_MIN) / LM3646_LED1_FLASH_BRT_STEP))+1)
+
+/* LED1 TORCH Brightness
+ * min 2530uA, step 1460uA, max 187100uA
+ */
+#define LM3646_LED1_TORCH_BRT_MIN 2530
+#define LM3646_LED1_TORCH_BRT_STEP 1460
+#define LM3646_LED1_TORCH_BRT_MAX 187100
+#define LM3646_LED1_TORCH_BRT_uA_TO_REG(a) \
+ ((a) <= LM3646_LED1_TORCH_BRT_MIN ? 0 : \
+ ((((a) - LM3646_LED1_TORCH_BRT_MIN) / LM3646_LED1_TORCH_BRT_STEP))+1)
+
+/* FLASH TIMEOUT DURATION
+ * min 50ms, step 50ms, max 400ms
+ */
+#define LM3646_FLASH_TOUT_MIN 50
+#define LM3646_FLASH_TOUT_STEP 50
+#define LM3646_FLASH_TOUT_MAX 400
+#define LM3646_FLASH_TOUT_ms_TO_REG(a) \
+ ((a) <= LM3646_FLASH_TOUT_MIN ? 0 : \
+ (((a) - LM3646_FLASH_TOUT_MIN) / LM3646_FLASH_TOUT_STEP))
+
+/* struct lm3646_platform_data
+ *
+ * @flash_timeout: flash timeout
+ * @led1_flash_brt: led1 flash mode brightness, uA
+ * @led1_torch_brt: led1 torch mode brightness, uA
+ */
+struct lm3646_platform_data {
+
+ u32 flash_timeout;
+
+ u32 led1_flash_brt;
+ u32 led1_torch_brt;
+};
+
+#endif /* __LM3646_H__ */