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/* 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_*/
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