/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2025 Advanced Micro Devices, Inc. */ #ifndef _SBRMI_CORE_H_ #define _SBRMI_CORE_H_ #include <linux/miscdevice.h> #include <linux/mutex.h> #include <linux/i2c.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <uapi/misc/amd-apml.h> /* SB-RMI registers */ enum sbrmi_reg { SBRMI_REV, SBRMI_CTRL, SBRMI_STATUS, SBRMI_OUTBNDMSG0 = 0x30, SBRMI_OUTBNDMSG1, SBRMI_OUTBNDMSG2, SBRMI_OUTBNDMSG3, SBRMI_OUTBNDMSG4, SBRMI_OUTBNDMSG5, SBRMI_OUTBNDMSG6, SBRMI_OUTBNDMSG7, SBRMI_INBNDMSG0, SBRMI_INBNDMSG1, SBRMI_INBNDMSG2, SBRMI_INBNDMSG3, SBRMI_INBNDMSG4, SBRMI_INBNDMSG5, SBRMI_INBNDMSG6, SBRMI_INBNDMSG7, SBRMI_SW_INTERRUPT, SBRMI_THREAD128CS = 0x4b, }; /* * SB-RMI supports soft mailbox service request to MP1 (power management * firmware) through SBRMI inbound/outbound message registers. * SB-RMI message IDs */ enum sbrmi_msg_id { SBRMI_READ_PKG_PWR_CONSUMPTION = 0x1, SBRMI_WRITE_PKG_PWR_LIMIT, SBRMI_READ_PKG_PWR_LIMIT, SBRMI_READ_PKG_MAX_PWR_LIMIT, }; /* Each client has this additional data */ struct sbrmi_data { struct miscdevice sbrmi_misc_dev; struct regmap *regmap; /* Mutex locking */ struct mutex lock; u32 pwr_limit_max; u8 dev_static_addr; u8 rev; }; int rmi_mailbox_xfer(struct sbrmi_data *data, struct apml_mbox_msg *msg); #ifdef CONFIG_AMD_SBRMI_HWMON int create_hwmon_sensor_device(struct device *dev, struct sbrmi_data *data); #else static inline int create_hwmon_sensor_device(struct device *dev, struct sbrmi_data *data) { return 0; } #endif int create_misc_rmi_device(struct sbrmi_data *data, struct device *dev); #endif /*_SBRMI_CORE_H_*/