1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /*
3  * Userspace ABI for TPS6594 PMIC Pre-configurable Finite State Machine
4  *
5  * Copyright (C) 2023 BayLibre Incorporated - https://www.baylibre.com/
6  */
7 
8 #ifndef __TPS6594_PFSM_H
9 #define __TPS6594_PFSM_H
10 
11 #include <linux/const.h>
12 #include <linux/ioctl.h>
13 #include <linux/types.h>
14 
15 /**
16  * struct pmic_state_opt - PMIC state options
17  * @gpio_retention: if enabled, power rails associated with GPIO retention remain active
18  * @ddr_retention: if enabled, power rails associated with DDR retention remain active
19  * @mcu_only_startup_dest: if enabled, startup destination state is MCU_ONLY
20  */
21 struct pmic_state_opt {
22 	__u8 gpio_retention;
23 	__u8 ddr_retention;
24 	__u8 mcu_only_startup_dest;
25 };
26 
27 /* Commands */
28 #define PMIC_BASE			'P'
29 
30 #define PMIC_GOTO_STANDBY		_IO(PMIC_BASE, 0)
31 #define PMIC_GOTO_LP_STANDBY		_IO(PMIC_BASE, 1)
32 #define PMIC_UPDATE_PGM			_IO(PMIC_BASE, 2)
33 #define PMIC_SET_ACTIVE_STATE		_IO(PMIC_BASE, 3)
34 #define PMIC_SET_MCU_ONLY_STATE		_IOW(PMIC_BASE, 4, struct pmic_state_opt)
35 #define PMIC_SET_RETENTION_STATE	_IOW(PMIC_BASE, 5, struct pmic_state_opt)
36 
37 #endif /*  __TPS6594_PFSM_H */
38