xref: /linux/include/linux/platform_data/lm3630a_bl.h (revision 75bf465f0bc33e9b776a46d6a1b9b990f5fb7c37)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Simple driver for Texas Instruments LM3630A LED Flash driver chip
4 * Copyright (C) 2012 Texas Instruments
5 */
6 
7 #ifndef __LINUX_LM3630A_H
8 #define __LINUX_LM3630A_H
9 
10 #define LM3630A_NAME "lm3630a_bl"
11 
12 enum lm3630a_pwm_ctrl {
13 	LM3630A_PWM_DISABLE = 0x00,
14 	LM3630A_PWM_BANK_A,
15 	LM3630A_PWM_BANK_B,
16 	LM3630A_PWM_BANK_ALL,
17 	LM3630A_PWM_BANK_A_ACT_LOW = 0x05,
18 	LM3630A_PWM_BANK_B_ACT_LOW,
19 	LM3630A_PWM_BANK_ALL_ACT_LOW,
20 };
21 
22 enum lm3630a_leda_ctrl {
23 	LM3630A_LEDA_DISABLE = 0x00,
24 	LM3630A_LEDA_ENABLE = 0x04,
25 	LM3630A_LEDA_ENABLE_LINEAR = 0x14,
26 };
27 
28 enum lm3630a_ledb_ctrl {
29 	LM3630A_LEDB_DISABLE = 0x00,
30 	LM3630A_LEDB_ON_A = 0x01,
31 	LM3630A_LEDB_ENABLE = 0x02,
32 	LM3630A_LEDB_ENABLE_LINEAR = 0x0A,
33 };
34 
35 #define LM3630A_MAX_BRIGHTNESS 255
36 /*
37  *@leda_label    : optional led a label.
38  *@leda_init_brt : led a init brightness. 4~255
39  *@leda_max_brt  : led a max brightness.  4~255
40  *@leda_ctrl     : led a disable, enable linear, enable exponential
41  *@ledb_label    : optional led b label.
42  *@ledb_init_brt : led b init brightness. 4~255
43  *@ledb_max_brt  : led b max brightness.  4~255
44  *@ledb_ctrl     : led b disable, enable linear, enable exponential
45  *@pwm_period    : pwm period
46  *@pwm_ctrl      : pwm disable, bank a or b, active high or low
47  */
48 struct lm3630a_platform_data {
49 
50 	/* led a config.  */
51 	const char *leda_label;
52 	int leda_init_brt;
53 	int leda_max_brt;
54 	enum lm3630a_leda_ctrl leda_ctrl;
55 	/* led b config. */
56 	const char *ledb_label;
57 	int ledb_init_brt;
58 	int ledb_max_brt;
59 	enum lm3630a_ledb_ctrl ledb_ctrl;
60 	/* pwm config. */
61 	unsigned int pwm_period;
62 	enum lm3630a_pwm_ctrl pwm_ctrl;
63 };
64 
65 #endif /* __LINUX_LM3630A_H */
66