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 */