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128 lines
4.1 KiB
128 lines
4.1 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Copyright (C) 2007-2009 ST-Ericsson AB |
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* AB3100 core access functions |
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* Author: Linus Walleij <[email protected]> |
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*/ |
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#include <linux/regulator/machine.h> |
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struct device; |
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#ifndef MFD_AB3100_H |
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#define MFD_AB3100_H |
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#define AB3100_P1A 0xc0 |
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#define AB3100_P1B 0xc1 |
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#define AB3100_P1C 0xc2 |
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#define AB3100_P1D 0xc3 |
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#define AB3100_P1E 0xc4 |
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#define AB3100_P1F 0xc5 |
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#define AB3100_P1G 0xc6 |
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#define AB3100_R2A 0xc7 |
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#define AB3100_R2B 0xc8 |
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/* |
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* AB3100, EVENTA1, A2 and A3 event register flags |
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* these are catenated into a single 32-bit flag in the code |
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* for event notification broadcasts. |
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*/ |
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#define AB3100_EVENTA1_ONSWA (0x01<<16) |
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#define AB3100_EVENTA1_ONSWB (0x02<<16) |
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#define AB3100_EVENTA1_ONSWC (0x04<<16) |
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#define AB3100_EVENTA1_DCIO (0x08<<16) |
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#define AB3100_EVENTA1_OVER_TEMP (0x10<<16) |
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#define AB3100_EVENTA1_SIM_OFF (0x20<<16) |
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#define AB3100_EVENTA1_VBUS (0x40<<16) |
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#define AB3100_EVENTA1_VSET_USB (0x80<<16) |
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#define AB3100_EVENTA2_READY_TX (0x01<<8) |
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#define AB3100_EVENTA2_READY_RX (0x02<<8) |
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#define AB3100_EVENTA2_OVERRUN_ERROR (0x04<<8) |
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#define AB3100_EVENTA2_FRAMING_ERROR (0x08<<8) |
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#define AB3100_EVENTA2_CHARG_OVERCURRENT (0x10<<8) |
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#define AB3100_EVENTA2_MIDR (0x20<<8) |
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#define AB3100_EVENTA2_BATTERY_REM (0x40<<8) |
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#define AB3100_EVENTA2_ALARM (0x80<<8) |
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#define AB3100_EVENTA3_ADC_TRIG5 (0x01) |
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#define AB3100_EVENTA3_ADC_TRIG4 (0x02) |
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#define AB3100_EVENTA3_ADC_TRIG3 (0x04) |
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#define AB3100_EVENTA3_ADC_TRIG2 (0x08) |
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#define AB3100_EVENTA3_ADC_TRIGVBAT (0x10) |
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#define AB3100_EVENTA3_ADC_TRIGVTX (0x20) |
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#define AB3100_EVENTA3_ADC_TRIG1 (0x40) |
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#define AB3100_EVENTA3_ADC_TRIG0 (0x80) |
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/* AB3100, STR register flags */ |
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#define AB3100_STR_ONSWA (0x01) |
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#define AB3100_STR_ONSWB (0x02) |
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#define AB3100_STR_ONSWC (0x04) |
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#define AB3100_STR_DCIO (0x08) |
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#define AB3100_STR_BOOT_MODE (0x10) |
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#define AB3100_STR_SIM_OFF (0x20) |
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#define AB3100_STR_BATT_REMOVAL (0x40) |
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#define AB3100_STR_VBUS (0x80) |
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/* |
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* AB3100 contains 8 regulators, one external regulator controller |
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* and a buck converter, further the LDO E and buck converter can |
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* have separate settings if they are in sleep mode, this is |
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* modeled as a separate regulator. |
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*/ |
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#define AB3100_NUM_REGULATORS 10 |
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/** |
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* struct ab3100 |
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* @access_mutex: lock out concurrent accesses to the AB3100 registers |
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* @dev: pointer to the containing device |
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* @i2c_client: I2C client for this chip |
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* @testreg_client: secondary client for test registers |
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* @chip_name: name of this chip variant |
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* @chip_id: 8 bit chip ID for this chip variant |
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* @event_subscribers: event subscribers are listed here |
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* @startup_events: a copy of the first reading of the event registers |
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* @startup_events_read: whether the first events have been read |
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* |
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* This struct is PRIVATE and devices using it should NOT |
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* access ANY fields. It is used as a token for calling the |
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* AB3100 functions. |
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*/ |
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struct ab3100 { |
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struct mutex access_mutex; |
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struct device *dev; |
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struct i2c_client *i2c_client; |
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struct i2c_client *testreg_client; |
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char chip_name[32]; |
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u8 chip_id; |
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struct blocking_notifier_head event_subscribers; |
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u8 startup_events[3]; |
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bool startup_events_read; |
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}; |
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/** |
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* struct ab3100_platform_data |
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* Data supplied to initialize board connections to the AB3100 |
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* @reg_constraints: regulator constraints for target board |
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* the order of these constraints are: LDO A, C, D, E, |
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* F, G, H, K, EXT and BUCK. |
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* @reg_initvals: initial values for the regulator registers |
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* plus two sleep settings for LDO E and the BUCK converter. |
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* exactly AB3100_NUM_REGULATORS+2 values must be sent in. |
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* Order: LDO A, C, E, E sleep, F, G, H, K, EXT, BUCK, |
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* BUCK sleep, LDO D. (LDO D need to be initialized last.) |
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* @external_voltage: voltage level of the external regulator. |
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*/ |
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struct ab3100_platform_data { |
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struct regulator_init_data reg_constraints[AB3100_NUM_REGULATORS]; |
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u8 reg_initvals[AB3100_NUM_REGULATORS+2]; |
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int external_voltage; |
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}; |
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int ab3100_event_register(struct ab3100 *ab3100, |
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struct notifier_block *nb); |
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int ab3100_event_unregister(struct ab3100 *ab3100, |
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struct notifier_block *nb); |
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#endif /* MFD_AB3100_H */
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