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Immutable branch between MFD and HWMON due for the v5.8 merge window

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Merge tag 'ib-mfd-hwmon-v5.8' into hwmon-next

Immutable branch between MFD and HWMON due for the v5.8 merge window
This commit is contained in:
Guenter Roeck 2020-05-22 06:29:55 -07:00
commit 8054eadca7
12 changed files with 1074 additions and 0 deletions
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76
include/linux/mfd/gsc.h Normal file
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/* SPDX-License-Identifier: GPL-2.0
*
* Copyright (C) 2020 Gateworks Corporation
*/
#ifndef __LINUX_MFD_GSC_H_
#define __LINUX_MFD_GSC_H_
#include <linux/regmap.h>
/* Device Addresses */
#define GSC_MISC 0x20
#define GSC_UPDATE 0x21
#define GSC_GPIO 0x23
#define GSC_HWMON 0x29
#define GSC_EEPROM0 0x50
#define GSC_EEPROM1 0x51
#define GSC_EEPROM2 0x52
#define GSC_EEPROM3 0x53
#define GSC_RTC 0x68
/* Register offsets */
enum {
GSC_CTRL_0 = 0x00,
GSC_CTRL_1 = 0x01,
GSC_TIME = 0x02,
GSC_TIME_ADD = 0x06,
GSC_IRQ_STATUS = 0x0A,
GSC_IRQ_ENABLE = 0x0B,
GSC_FW_CRC = 0x0C,
GSC_FW_VER = 0x0E,
GSC_WP = 0x0F,
};
/* Bit definitions */
#define GSC_CTRL_0_PB_HARD_RESET 0
#define GSC_CTRL_0_PB_CLEAR_SECURE_KEY 1
#define GSC_CTRL_0_PB_SOFT_POWER_DOWN 2
#define GSC_CTRL_0_PB_BOOT_ALTERNATE 3
#define GSC_CTRL_0_PERFORM_CRC 4
#define GSC_CTRL_0_TAMPER_DETECT 5
#define GSC_CTRL_0_SWITCH_HOLD 6
#define GSC_CTRL_1_SLEEP_ENABLE 0
#define GSC_CTRL_1_SLEEP_ACTIVATE 1
#define GSC_CTRL_1_SLEEP_ADD 2
#define GSC_CTRL_1_SLEEP_NOWAKEPB 3
#define GSC_CTRL_1_WDT_TIME 4
#define GSC_CTRL_1_WDT_ENABLE 5
#define GSC_CTRL_1_SWITCH_BOOT_ENABLE 6
#define GSC_CTRL_1_SWITCH_BOOT_CLEAR 7
#define GSC_IRQ_PB 0
#define GSC_IRQ_KEY_ERASED 1
#define GSC_IRQ_EEPROM_WP 2
#define GSC_IRQ_RESV 3
#define GSC_IRQ_GPIO 4
#define GSC_IRQ_TAMPER 5
#define GSC_IRQ_WDT_TIMEOUT 6
#define GSC_IRQ_SWITCH_HOLD 7
int gsc_read(void *context, unsigned int reg, unsigned int *val);
int gsc_write(void *context, unsigned int reg, unsigned int val);
struct gsc_dev {
struct device *dev;
struct i2c_client *i2c; /* 0x20: interrupt controller, WDT */
struct i2c_client *i2c_hwmon; /* 0x29: hwmon, fan controller */
struct regmap *regmap;
unsigned int fwver;
unsigned short fwcrc;
};
#endif /* __LINUX_MFD_GSC_H_ */

44
include/linux/platform_data/gsc_hwmon.h Normal file
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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _GSC_HWMON_H
#define _GSC_HWMON_H
enum gsc_hwmon_mode {
mode_temperature,
mode_voltage,
mode_voltage_raw,
mode_max,
};
/**
* struct gsc_hwmon_channel - configuration parameters
* @reg: I2C register offset
* @mode: channel mode
* @name: channel name
* @mvoffset: voltage offset
* @vdiv: voltage divider array (2 resistor values in milli-ohms)
*/
struct gsc_hwmon_channel {
unsigned int reg;
unsigned int mode;
const char *name;
unsigned int mvoffset;
unsigned int vdiv[2];
};
/**
* struct gsc_hwmon_platform_data - platform data for gsc_hwmon driver
* @channels: pointer to array of gsc_hwmon_channel structures
* describing channels
* @nchannels: number of elements in @channels array
* @vreference: voltage reference (mV)
* @resolution: ADC bit resolution
* @fan_base: register base for FAN controller
*/
struct gsc_hwmon_platform_data {
const struct gsc_hwmon_channel *channels;
int nchannels;
unsigned int resolution;
unsigned int vreference;
unsigned int fan_base;
};
#endif