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gerrit-public.fairphone.software / kernel / msm-4.9 / 2e4891a5ec6e7c5147a6803bfdabe4f1c94d6bce / . / include / linux / mfd / aat2870.h
blob: f7316c29bdec6a06f1e57890ed42efef5be7a443 [file] [log] [blame]
Jin Park09d62922011-07-04 19:48:12 +0200[diff] [blame]1/*
2 * linux/include/linux/mfd/aat2870.h
3 *
4 * Copyright (c) 2011, NVIDIA Corporation.
5 * Author: Jin Park <jinyoungp@nvidia.com>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * version 2 as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
19 * 02110-1301 USA
20 */
21
22#ifndef __LINUX_MFD_AAT2870_H
23#define __LINUX_MFD_AAT2870_H
24
25#include <linux/debugfs.h>
26#include <linux/i2c.h>
27
28/* Register offsets */
29#define AAT2870_BL_CH_EN 0x00
30#define AAT2870_BLM 0x01
31#define AAT2870_BLS 0x02
32#define AAT2870_BL1 0x03
33#define AAT2870_BL2 0x04
34#define AAT2870_BL3 0x05
35#define AAT2870_BL4 0x06
36#define AAT2870_BL5 0x07
37#define AAT2870_BL6 0x08
38#define AAT2870_BL7 0x09
39#define AAT2870_BL8 0x0A
40#define AAT2870_FLR 0x0B
41#define AAT2870_FM 0x0C
42#define AAT2870_FS 0x0D
43#define AAT2870_ALS_CFG0 0x0E
44#define AAT2870_ALS_CFG1 0x0F
45#define AAT2870_ALS_CFG2 0x10
46#define AAT2870_AMB 0x11
47#define AAT2870_ALS0 0x12
48#define AAT2870_ALS1 0x13
49#define AAT2870_ALS2 0x14
50#define AAT2870_ALS3 0x15
51#define AAT2870_ALS4 0x16
52#define AAT2870_ALS5 0x17
53#define AAT2870_ALS6 0x18
54#define AAT2870_ALS7 0x19
55#define AAT2870_ALS8 0x1A
56#define AAT2870_ALS9 0x1B
57#define AAT2870_ALSA 0x1C
58#define AAT2870_ALSB 0x1D
59#define AAT2870_ALSC 0x1E
60#define AAT2870_ALSD 0x1F
61#define AAT2870_ALSE 0x20
62#define AAT2870_ALSF 0x21
63#define AAT2870_SUB_SET 0x22
64#define AAT2870_SUB_CTRL 0x23
65#define AAT2870_LDO_AB 0x24
66#define AAT2870_LDO_CD 0x25
67#define AAT2870_LDO_EN 0x26
68#define AAT2870_REG_NUM 0x27
69
70/* Device IDs */
71enum aat2870_id {
72 AAT2870_ID_BL,
73 AAT2870_ID_LDOA,
74 AAT2870_ID_LDOB,
75 AAT2870_ID_LDOC,
76 AAT2870_ID_LDOD
77};
78
79/* Backlight channels */
80#define AAT2870_BL_CH1 0x01
81#define AAT2870_BL_CH2 0x02
82#define AAT2870_BL_CH3 0x04
83#define AAT2870_BL_CH4 0x08
84#define AAT2870_BL_CH5 0x10
85#define AAT2870_BL_CH6 0x20
86#define AAT2870_BL_CH7 0x40
87#define AAT2870_BL_CH8 0x80
88#define AAT2870_BL_CH_ALL 0xFF
89
90/* Backlight current magnitude (mA) */
91enum aat2870_current {
Axel Lin5d6f9212011-08-03 16:21:17 -0700[diff] [blame]92 AAT2870_CURRENT_0_45 = 1,
Jin Park09d62922011-07-04 19:48:12 +0200[diff] [blame]93 AAT2870_CURRENT_0_90,
94 AAT2870_CURRENT_1_80,
95 AAT2870_CURRENT_2_70,
96 AAT2870_CURRENT_3_60,
97 AAT2870_CURRENT_4_50,
98 AAT2870_CURRENT_5_40,
99 AAT2870_CURRENT_6_30,
100 AAT2870_CURRENT_7_20,
101 AAT2870_CURRENT_8_10,
102 AAT2870_CURRENT_9_00,
103 AAT2870_CURRENT_9_90,
104 AAT2870_CURRENT_10_8,
105 AAT2870_CURRENT_11_7,
106 AAT2870_CURRENT_12_6,
107 AAT2870_CURRENT_13_5,
108 AAT2870_CURRENT_14_4,
109 AAT2870_CURRENT_15_3,
110 AAT2870_CURRENT_16_2,
111 AAT2870_CURRENT_17_1,
112 AAT2870_CURRENT_18_0,
113 AAT2870_CURRENT_18_9,
114 AAT2870_CURRENT_19_8,
115 AAT2870_CURRENT_20_7,
116 AAT2870_CURRENT_21_6,
117 AAT2870_CURRENT_22_5,
118 AAT2870_CURRENT_23_4,
119 AAT2870_CURRENT_24_3,
120 AAT2870_CURRENT_25_2,
121 AAT2870_CURRENT_26_1,
122 AAT2870_CURRENT_27_0,
123 AAT2870_CURRENT_27_9
124};
125
126struct aat2870_register {
127 bool readable;
128 bool writeable;
129 u8 value;
130};
131
132struct aat2870_data {
133 struct device *dev;
134 struct i2c_client *client;
135
136 struct mutex io_lock;
137 struct aat2870_register *reg_cache; /* register cache */
138 int en_pin; /* enable GPIO pin (if < 0, ignore this value) */
139 bool is_enable;
140
141 /* init and uninit for platform specified */
142 int (*init)(struct aat2870_data *aat2870);
143 void (*uninit)(struct aat2870_data *aat2870);
144
145 /* i2c io funcntions */
146 int (*read)(struct aat2870_data *aat2870, u8 addr, u8 *val);
147 int (*write)(struct aat2870_data *aat2870, u8 addr, u8 val);
148 int (*update)(struct aat2870_data *aat2870, u8 addr, u8 mask, u8 val);
149
150 /* for debugfs */
151 struct dentry *dentry_root;
152 struct dentry *dentry_reg;
153};
154
155struct aat2870_subdev_info {
156 int id;
157 const char *name;
158 void *platform_data;
159};
160
161struct aat2870_platform_data {
162 int en_pin; /* enable GPIO pin (if < 0, ignore this value) */
163
164 struct aat2870_subdev_info *subdevs;
165 int num_subdevs;
166
167 /* init and uninit for platform specified */
168 int (*init)(struct aat2870_data *aat2870);
169 void (*uninit)(struct aat2870_data *aat2870);
170};
171
172struct aat2870_bl_platform_data {
173 /* backlight channels, default is AAT2870_BL_CH_ALL */
174 int channels;
175 /* backlight current magnitude, default is AAT2870_CURRENT_27_9 */
176 int max_current;
177 /* maximum brightness, default is 255 */
178 int max_brightness;
179};
180
181#endif /* __LINUX_MFD_AAT2870_H */