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편집 파일: gsc.h

/* SPDX-License-Identifier: GPL-2.0 * * Copyright (C) 2020 Gateworks Corporation */ #ifndef __LINUX_MFD_GSC_H_ #define __LINUX_MFD_GSC_H_ #include <linux/regmap.h> /* Device Addresses */ #define GSC_MISC 0x20 #define GSC_UPDATE 0x21 #define GSC_GPIO 0x23 #define GSC_HWMON 0x29 #define GSC_EEPROM0 0x50 #define GSC_EEPROM1 0x51 #define GSC_EEPROM2 0x52 #define GSC_EEPROM3 0x53 #define GSC_RTC 0x68 /* Register offsets */ enum { GSC_CTRL_0 = 0x00, GSC_CTRL_1 = 0x01, GSC_TIME = 0x02, GSC_TIME_ADD = 0x06, GSC_IRQ_STATUS = 0x0A, GSC_IRQ_ENABLE = 0x0B, GSC_FW_CRC = 0x0C, GSC_FW_VER = 0x0E, GSC_WP = 0x0F, }; /* Bit definitions */ #define GSC_CTRL_0_PB_HARD_RESET 0 #define GSC_CTRL_0_PB_CLEAR_SECURE_KEY 1 #define GSC_CTRL_0_PB_SOFT_POWER_DOWN 2 #define GSC_CTRL_0_PB_BOOT_ALTERNATE 3 #define GSC_CTRL_0_PERFORM_CRC 4 #define GSC_CTRL_0_TAMPER_DETECT 5 #define GSC_CTRL_0_SWITCH_HOLD 6 #define GSC_CTRL_1_SLEEP_ENABLE 0 #define GSC_CTRL_1_SLEEP_ACTIVATE 1 #define GSC_CTRL_1_SLEEP_ADD 2 #define GSC_CTRL_1_SLEEP_NOWAKEPB 3 #define GSC_CTRL_1_WDT_TIME 4 #define GSC_CTRL_1_WDT_ENABLE 5 #define GSC_CTRL_1_SWITCH_BOOT_ENABLE 6 #define GSC_CTRL_1_SWITCH_BOOT_CLEAR 7 #define GSC_IRQ_PB 0 #define GSC_IRQ_KEY_ERASED 1 #define GSC_IRQ_EEPROM_WP 2 #define GSC_IRQ_RESV 3 #define GSC_IRQ_GPIO 4 #define GSC_IRQ_TAMPER 5 #define GSC_IRQ_WDT_TIMEOUT 6 #define GSC_IRQ_SWITCH_HOLD 7 int gsc_read(void *context, unsigned int reg, unsigned int *val); int gsc_write(void *context, unsigned int reg, unsigned int val); struct gsc_dev { struct device *dev; struct i2c_client *i2c; /* 0x20: interrupt controller, WDT */ struct i2c_client *i2c_hwmon; /* 0x29: hwmon, fan controller */ struct regmap *regmap; unsigned int fwver; unsigned short fwcrc; }; #endif /* __LINUX_MFD_GSC_H_ */