1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) 2007-2009 ST-Ericsson AB 4 * AB3100 core access functions 5 * Author: Linus Walleij <linus.walleij@stericsson.com> 6 */ 7 8 #include <linux/regulator/machine.h> 9 10 struct device; 11 12 #ifndef MFD_AB3100_H 13 #define MFD_AB3100_H 14 15 16 #define AB3100_P1A 0xc0 17 #define AB3100_P1B 0xc1 18 #define AB3100_P1C 0xc2 19 #define AB3100_P1D 0xc3 20 #define AB3100_P1E 0xc4 21 #define AB3100_P1F 0xc5 22 #define AB3100_P1G 0xc6 23 #define AB3100_R2A 0xc7 24 #define AB3100_R2B 0xc8 25 26 /* 27 * AB3100, EVENTA1, A2 and A3 event register flags 28 * these are catenated into a single 32-bit flag in the code 29 * for event notification broadcasts. 30 */ 31 #define AB3100_EVENTA1_ONSWA (0x01<<16) 32 #define AB3100_EVENTA1_ONSWB (0x02<<16) 33 #define AB3100_EVENTA1_ONSWC (0x04<<16) 34 #define AB3100_EVENTA1_DCIO (0x08<<16) 35 #define AB3100_EVENTA1_OVER_TEMP (0x10<<16) 36 #define AB3100_EVENTA1_SIM_OFF (0x20<<16) 37 #define AB3100_EVENTA1_VBUS (0x40<<16) 38 #define AB3100_EVENTA1_VSET_USB (0x80<<16) 39 40 #define AB3100_EVENTA2_READY_TX (0x01<<8) 41 #define AB3100_EVENTA2_READY_RX (0x02<<8) 42 #define AB3100_EVENTA2_OVERRUN_ERROR (0x04<<8) 43 #define AB3100_EVENTA2_FRAMING_ERROR (0x08<<8) 44 #define AB3100_EVENTA2_CHARG_OVERCURRENT (0x10<<8) 45 #define AB3100_EVENTA2_MIDR (0x20<<8) 46 #define AB3100_EVENTA2_BATTERY_REM (0x40<<8) 47 #define AB3100_EVENTA2_ALARM (0x80<<8) 48 49 #define AB3100_EVENTA3_ADC_TRIG5 (0x01) 50 #define AB3100_EVENTA3_ADC_TRIG4 (0x02) 51 #define AB3100_EVENTA3_ADC_TRIG3 (0x04) 52 #define AB3100_EVENTA3_ADC_TRIG2 (0x08) 53 #define AB3100_EVENTA3_ADC_TRIGVBAT (0x10) 54 #define AB3100_EVENTA3_ADC_TRIGVTX (0x20) 55 #define AB3100_EVENTA3_ADC_TRIG1 (0x40) 56 #define AB3100_EVENTA3_ADC_TRIG0 (0x80) 57 58 /* AB3100, STR register flags */ 59 #define AB3100_STR_ONSWA (0x01) 60 #define AB3100_STR_ONSWB (0x02) 61 #define AB3100_STR_ONSWC (0x04) 62 #define AB3100_STR_DCIO (0x08) 63 #define AB3100_STR_BOOT_MODE (0x10) 64 #define AB3100_STR_SIM_OFF (0x20) 65 #define AB3100_STR_BATT_REMOVAL (0x40) 66 #define AB3100_STR_VBUS (0x80) 67 68 /* 69 * AB3100 contains 8 regulators, one external regulator controller 70 * and a buck converter, further the LDO E and buck converter can 71 * have separate settings if they are in sleep mode, this is 72 * modeled as a separate regulator. 73 */ 74 #define AB3100_NUM_REGULATORS 10 75 76 /** 77 * struct ab3100 78 * @access_mutex: lock out concurrent accesses to the AB3100 registers 79 * @dev: pointer to the containing device 80 * @i2c_client: I2C client for this chip 81 * @testreg_client: secondary client for test registers 82 * @chip_name: name of this chip variant 83 * @chip_id: 8 bit chip ID for this chip variant 84 * @event_subscribers: event subscribers are listed here 85 * @startup_events: a copy of the first reading of the event registers 86 * @startup_events_read: whether the first events have been read 87 * 88 * This struct is PRIVATE and devices using it should NOT 89 * access ANY fields. It is used as a token for calling the 90 * AB3100 functions. 91 */ 92 struct ab3100 { 93 struct mutex access_mutex; 94 struct device *dev; 95 struct i2c_client *i2c_client; 96 struct i2c_client *testreg_client; 97 char chip_name[32]; 98 u8 chip_id; 99 struct blocking_notifier_head event_subscribers; 100 u8 startup_events[3]; 101 bool startup_events_read; 102 }; 103 104 /** 105 * struct ab3100_platform_data 106 * Data supplied to initialize board connections to the AB3100 107 * @reg_constraints: regulator constraints for target board 108 * the order of these constraints are: LDO A, C, D, E, 109 * F, G, H, K, EXT and BUCK. 110 * @reg_initvals: initial values for the regulator registers 111 * plus two sleep settings for LDO E and the BUCK converter. 112 * exactly AB3100_NUM_REGULATORS+2 values must be sent in. 113 * Order: LDO A, C, E, E sleep, F, G, H, K, EXT, BUCK, 114 * BUCK sleep, LDO D. (LDO D need to be initialized last.) 115 * @external_voltage: voltage level of the external regulator. 116 */ 117 struct ab3100_platform_data { 118 struct regulator_init_data reg_constraints[AB3100_NUM_REGULATORS]; 119 u8 reg_initvals[AB3100_NUM_REGULATORS+2]; 120 int external_voltage; 121 }; 122 123 int ab3100_event_register(struct ab3100 *ab3100, 124 struct notifier_block *nb); 125 int ab3100_event_unregister(struct ab3100 *ab3100, 126 struct notifier_block *nb); 127 128 #endif /* MFD_AB3100_H */ 129
