power: tps80031-battery: Exit driver if battery is not detected
[linux-2.6.git] / include / linux / mfd / tps80031.h
1 /*
2  * include/linux/mfd/tps80031.c
3  *
4  * Core driver interface for TI TPS80031 PMIC
5  *
6  * Copyright (C) 2011 NVIDIA Corporation
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful, but WITHOUT
14  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
16  * more details.
17  *
18  * You should have received a copy of the GNU General Public License along
19  * with this program; if not, write to the Free Software Foundation, Inc.,
20  * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
21  *
22  */
23
24 #ifndef __LINUX_MFD_TPS80031_H
25 #define __LINUX_MFD_TPS80031_H
26
27 #include <linux/rtc.h>
28
29 /* Supported chips */
30 enum chips {
31         TPS80031 = 0x00000001,
32         TPS80032 = 0x00000002,
33 };
34
35 enum {
36         TPS80031_INT_PWRON,
37         TPS80031_INT_RPWRON,
38         TPS80031_INT_SYS_VLOW,
39         TPS80031_INT_RTC_ALARM,
40         TPS80031_INT_RTC_PERIOD,
41         TPS80031_INT_HOT_DIE,
42         TPS80031_INT_VXX_SHORT,
43         TPS80031_INT_SPDURATION,
44         TPS80031_INT_WATCHDOG,
45         TPS80031_INT_BAT,
46         TPS80031_INT_SIM,
47         TPS80031_INT_MMC,
48         TPS80031_INT_RES,
49         TPS80031_INT_GPADC_RT,
50         TPS80031_INT_GPADC_SW2_EOC,
51         TPS80031_INT_CC_AUTOCAL,
52         TPS80031_INT_ID_WKUP,
53         TPS80031_INT_VBUSS_WKUP,
54         TPS80031_INT_ID,
55         TPS80031_INT_VBUS,
56         TPS80031_INT_CHRG_CTRL,
57         TPS80031_INT_EXT_CHRG,
58         TPS80031_INT_INT_CHRG,
59         TPS80031_INT_RES2,
60         TPS80031_INT_BAT_TEMP_OVRANGE,
61         TPS80031_INT_BAT_REMOVED,
62         TPS80031_INT_VBUS_DET,
63         TPS80031_INT_VAC_DET,
64         TPS80031_INT_FAULT_WDG,
65         TPS80031_INT_LINCH_GATED,
66
67         /* Last interrupt id to get the end number */
68         TPS80031_INT_NR,
69 };
70
71 enum adc_channel {
72         BATTERY_TYPE                    = 0,  /* External ADC */
73         BATTERY_TEMPERATURE             = 1,  /* External ADC */
74         AUDIO_ACCESSORY                 = 2,  /* External ADC */
75         TEMPERATURE_EXTERNAL_DIODE      = 3,  /* External ADC */
76         TEMPERATURE_MEASUREMENT         = 4,  /* External ADC */
77         GENERAL_PURPOSE_1               = 5,  /* External ADC */
78         GENERAL_PURPOSE_2               = 6,  /* External ADC */
79         SYSTEM_SUPPLY                   = 7,  /* Internal ADC */
80         BACKUP_BATTERY                  = 8,  /* Internal ADC */
81         EXTERNAL_CHARGER_INPUT          = 9,  /* Internal ADC */
82         VBUS                            = 10, /* Internal ADC */
83         VBUS_DCDC_OUTPUT_CURRENT        = 11, /* Internal ADC */
84         DIE_TEMPERATURE_1               = 12, /* Internal ADC */
85         DIE_TEMPERATURE_2               = 13, /* Internal ADC */
86         USB_ID_LINE                     = 14, /* Internal ADC */
87         TEST_NETWORK_1                  = 15, /* Internal ADC */
88         TEST_NETWORK_2                  = 16, /* Internal ADC */
89         BATTERY_CHARGING_CURRENT        = 17, /* Internal ADC */
90         BATTERY_VOLTAGE                 = 18, /* Internal ADC */
91 };
92
93 enum TPS80031_GPIO {
94         TPS80031_GPIO_REGEN1,
95         TPS80031_GPIO_REGEN2,
96         TPS80031_GPIO_SYSEN,
97
98         /* Last entry */
99         TPS80031_GPIO_NR,
100 };
101
102 enum {
103         SLAVE_ID0 = 0,
104         SLAVE_ID1 = 1,
105         SLAVE_ID2 = 2,
106         SLAVE_ID3 = 3,
107 };
108
109 enum {
110         I2C_ID0_ADDR = 0x12,
111         I2C_ID1_ADDR = 0x48,
112         I2C_ID2_ADDR = 0x49,
113         I2C_ID3_ADDR = 0x4A,
114 };
115
116 /* External power requests */
117 enum tps80031_ext_control {
118         PWR_REQ_INPUT_NONE      = 0x00000000,
119         PWR_REQ_INPUT_PREQ1     = 0x00000001,
120         PWR_REQ_INPUT_PREQ2     = 0x00000002,
121         PWR_REQ_INPUT_PREQ3     = 0x00000004,
122 };
123
124 struct tps80031_subdev_info {
125         int             id;
126         const char      *name;
127         void            *platform_data;
128 };
129
130 struct tps80031_rtc_platform_data {
131         int irq;
132         struct rtc_time time;
133 };
134
135 struct tps80031_32kclock_plat_data {
136         unsigned en_clk32kao:1;
137         unsigned en_clk32kg:1;
138         unsigned en_clk32kaudio:1;
139 };
140
141 struct tps80031_gpio_init_data {
142         int gpio_nr;
143         enum tps80031_ext_control ext_control;
144 };
145
146 struct tps80031_platform_data {
147         int num_subdevs;
148         struct tps80031_subdev_info *subdevs;
149         int gpio_base;
150         int irq_base;
151         struct tps80031_32kclock_plat_data *clk32k_pdata;
152         struct tps80031_gpio_init_data *gpio_init_data;
153         int gpio_init_data_size;
154 };
155
156 struct tps80031_bg_platform_data {
157         int irq_base;
158         int battery_present;
159 };
160
161 /*
162  * NOTE: the functions below are not intended for use outside
163  * of the TPS80031 sub-device drivers
164  */
165 extern int tps80031_write(struct device *dev, int sid, int reg, uint8_t val);
166 extern int tps80031_writes(struct device *dev, int sid, int reg, int len,
167                                 uint8_t *val);
168 extern int tps80031_read(struct device *dev, int sid, int reg, uint8_t *val);
169 extern int tps80031_reads(struct device *dev, int sid, int reg, int len,
170                                 uint8_t *val);
171 extern int tps80031_set_bits(struct device *dev, int sid, int reg,
172                                 uint8_t bit_mask);
173 extern int tps80031_clr_bits(struct device *dev, int sid, int reg,
174                                 uint8_t bit_mask);
175 extern int tps80031_update(struct device *dev, int sid, int reg, uint8_t val,
176                            uint8_t mask);
177 extern int tps80031_force_update(struct device *dev, int sid, int reg,
178                                  uint8_t val, uint8_t mask);
179 extern int tps80031_ext_power_req_config(struct device *dev,
180                 enum tps80031_ext_control ext_pwr_ctrl, int preq_bit,
181                 int state_reg_add, int trans_reg_add);
182
183 extern int tps80031_power_off(void);
184
185 extern unsigned long tps80031_get_chip_info(struct device *dev);
186
187 extern int tps80031_gpadc_conversion(int channle_no);
188
189 #endif /*__LINUX_MFD_TPS80031_H */