linux/drivers/hwmon/smpro-hwmon.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Ampere Computing SoC's SMPro Hardware Monitoring Driver
 *
 * Copyright (c) 2022, Ampere Computing LLC
 */
#include <linux/bitfield.h>
#include <linux/bitops.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/kernel.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/property.h>
#include <linux/regmap.h>

/* Logical Power Sensor Registers */
#define SOC_TEMP …
#define SOC_VRD_TEMP …
#define DIMM_VRD_TEMP …
#define CORE_VRD_TEMP …
#define CH0_DIMM_TEMP …
#define CH1_DIMM_TEMP …
#define CH2_DIMM_TEMP …
#define CH3_DIMM_TEMP …
#define CH4_DIMM_TEMP …
#define CH5_DIMM_TEMP …
#define CH6_DIMM_TEMP …
#define CH7_DIMM_TEMP …
#define RCA_VRD_TEMP …

#define CORE_VRD_PWR …
#define SOC_PWR …
#define DIMM_VRD1_PWR …
#define DIMM_VRD2_PWR …
#define CORE_VRD_PWR_MW …
#define SOC_PWR_MW …
#define DIMM_VRD1_PWR_MW …
#define DIMM_VRD2_PWR_MW …
#define RCA_VRD_PWR …
#define RCA_VRD_PWR_MW …

#define MEM_HOT_THRESHOLD …
#define SOC_VR_HOT_THRESHOLD …
#define CORE_VRD_VOLT …
#define SOC_VRD_VOLT …
#define DIMM_VRD1_VOLT …
#define DIMM_VRD2_VOLT …
#define RCA_VRD_VOLT …

#define CORE_VRD_CURR …
#define SOC_VRD_CURR …
#define DIMM_VRD1_CURR …
#define DIMM_VRD2_CURR …
#define RCA_VRD_CURR …

struct smpro_hwmon { … };

struct smpro_sensor { … };

static const struct smpro_sensor temperature[] = …;

static const struct smpro_sensor voltage[] = …;

static const struct smpro_sensor curr_sensor[] = …;

static const struct smpro_sensor power[] = …;

static int smpro_read_temp(struct device *dev, u32 attr, int channel, long *val)
{ … }

static int smpro_read_in(struct device *dev, u32 attr, int channel, long *val)
{ … }

static int smpro_read_curr(struct device *dev, u32 attr, int channel, long *val)
{ … }

static int smpro_read_power(struct device *dev, u32 attr, int channel, long *val_pwr)
{ … }

static int smpro_read(struct device *dev, enum hwmon_sensor_types type,
		      u32 attr, int channel, long *val)
{ … }

static int smpro_read_string(struct device *dev, enum hwmon_sensor_types type,
			     u32 attr, int channel, const char **str)
{ … }

static umode_t smpro_is_visible(const void *data, enum hwmon_sensor_types type,
				u32 attr, int channel)
{ … }

static const struct hwmon_channel_info * const smpro_info[] = …;

static const struct hwmon_ops smpro_hwmon_ops = …;

static const struct hwmon_chip_info smpro_chip_info = …;

static int smpro_hwmon_probe(struct platform_device *pdev)
{ … }

static struct platform_driver smpro_hwmon_driver = …;

module_platform_driver(…) …;

MODULE_AUTHOR(…) …;
MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;