linux-imx

// SPDX-License-Identifier: GPL-2.0+

// Copyright IBM Corp 2019

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#include <linux/device.h>

#include <linux/hwmon.h>

#include <linux/hwmon-sysfs.h>

#include <linux/jiffies.h>

#include <linux/kernel.h>

#include <linux/math64.h>

#include <linux/mutex.h>

#include <linux/sysfs.h>

#include <asm/unaligned.h>

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#include "common.h"

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#define EXTN_FLAG_SENSOR_ID     BIT(7)

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#define OCC_ERROR_COUNT_THRESHOLD   2   /* required by OCC spec */

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#define OCC_STATE_SAFE          4

#define OCC_SAFE_TIMEOUT        msecs_to_jiffies(60000) /* 1 min */

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#define OCC_UPDATE_FREQUENCY        msecs_to_jiffies(1000)

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#define OCC_TEMP_SENSOR_FAULT       0xFF

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#define OCC_FRU_TYPE_VRM        3

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/* OCC sensor type and version definitions */

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struct temp_sensor_1 {

    u16 sensor_id;

    u16 value;

} __packed;

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struct temp_sensor_2 {

    u32 sensor_id;

    u8 fru_type;

    u8 value;

} __packed;

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struct freq_sensor_1 {

    u16 sensor_id;

    u16 value;

} __packed;

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struct freq_sensor_2 {

    u32 sensor_id;

    u16 value;

} __packed;

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struct power_sensor_1 {

    u16 sensor_id;

    u32 update_tag;

    u32 accumulator;

    u16 value;

} __packed;

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struct power_sensor_2 {

    u32 sensor_id;

    u8 function_id;

    u8 apss_channel;

    u16 reserved;

    u32 update_tag;

    u64 accumulator;

    u16 value;

} __packed;

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struct power_sensor_data {

    u16 value;

    u32 update_tag;

    u64 accumulator;

} __packed;

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struct power_sensor_data_and_time {

    u16 update_time;

    u16 value;

    u32 update_tag;

    u64 accumulator;

} __packed;

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struct power_sensor_a0 {

    u32 sensor_id;

    struct power_sensor_data_and_time system;

    u32 reserved;

    struct power_sensor_data_and_time proc;

    struct power_sensor_data vdd;

    struct power_sensor_data vdn;

} __packed;

​

struct caps_sensor_2 {

    u16 cap;