xref: /openbmc/linux/include/linux/mfd/ti-lmu.h (revision d2912cb1)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * TI LMU (Lighting Management Unit) Devices
4  *
5  * Copyright 2017 Texas Instruments
6  *
7  * Author: Milo Kim <milo.kim@ti.com>
8  */
9 
10 #ifndef __MFD_TI_LMU_H__
11 #define __MFD_TI_LMU_H__
12 
13 #include <linux/gpio.h>
14 #include <linux/notifier.h>
15 #include <linux/regmap.h>
16 #include <linux/gpio/consumer.h>
17 
18 /* Notifier event */
19 #define LMU_EVENT_MONITOR_DONE		0x01
20 
21 enum ti_lmu_id {
22 	LM3631,
23 	LM3632,
24 	LM3633,
25 	LM3695,
26 	LM36274,
27 	LMU_MAX_ID,
28 };
29 
30 enum ti_lmu_max_current {
31 	LMU_IMAX_5mA,
32 	LMU_IMAX_6mA,
33 	LMU_IMAX_7mA = 0x03,
34 	LMU_IMAX_8mA,
35 	LMU_IMAX_9mA,
36 	LMU_IMAX_10mA = 0x07,
37 	LMU_IMAX_11mA,
38 	LMU_IMAX_12mA,
39 	LMU_IMAX_13mA,
40 	LMU_IMAX_14mA,
41 	LMU_IMAX_15mA = 0x0D,
42 	LMU_IMAX_16mA,
43 	LMU_IMAX_17mA,
44 	LMU_IMAX_18mA,
45 	LMU_IMAX_19mA,
46 	LMU_IMAX_20mA = 0x13,
47 	LMU_IMAX_21mA,
48 	LMU_IMAX_22mA,
49 	LMU_IMAX_23mA = 0x17,
50 	LMU_IMAX_24mA,
51 	LMU_IMAX_25mA,
52 	LMU_IMAX_26mA,
53 	LMU_IMAX_27mA = 0x1C,
54 	LMU_IMAX_28mA,
55 	LMU_IMAX_29mA,
56 	LMU_IMAX_30mA,
57 };
58 
59 enum lm363x_regulator_id {
60 	LM3631_BOOST,		/* Boost output */
61 	LM3631_LDO_CONT,	/* Display panel controller */
62 	LM3631_LDO_OREF,	/* Gamma reference */
63 	LM3631_LDO_POS,		/* Positive display bias output */
64 	LM3631_LDO_NEG,		/* Negative display bias output */
65 	LM3632_BOOST,		/* Boost output */
66 	LM3632_LDO_POS,		/* Positive display bias output */
67 	LM3632_LDO_NEG,		/* Negative display bias output */
68 	LM36274_BOOST,		/* Boost output */
69 	LM36274_LDO_POS,	/* Positive display bias output */
70 	LM36274_LDO_NEG,	/* Negative display bias output */
71 };
72 
73 /**
74  * struct ti_lmu
75  *
76  * @dev:	Parent device pointer
77  * @regmap:	Used for i2c communcation on accessing registers
78  * @en_gpio:	GPIO for HWEN pin [Optional]
79  * @notifier:	Notifier for reporting hwmon event
80  */
81 struct ti_lmu {
82 	struct device *dev;
83 	struct regmap *regmap;
84 	struct gpio_desc *en_gpio;
85 	struct blocking_notifier_head notifier;
86 };
87 #endif
88