^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * w83l786ng.c - Linux kernel driver for hardware monitoring
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (c) 2007 Kevin Lo <kevlo@kevlo.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Supports following chips:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * w83l786ng 3 2 2 2 0x7b 0x5ca3 yes no
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/hwmon.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/hwmon-vid.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/hwmon-sysfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/jiffies.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) /* Addresses to scan */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static const unsigned short normal_i2c[] = { 0x2e, 0x2f, I2C_CLIENT_END };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) /* Insmod parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static bool reset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) module_param(reset, bool, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) MODULE_PARM_DESC(reset, "Set to 1 to reset chip, not recommended");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define W83L786NG_REG_IN_MIN(nr) (0x2C + (nr) * 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define W83L786NG_REG_IN_MAX(nr) (0x2B + (nr) * 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define W83L786NG_REG_IN(nr) ((nr) + 0x20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define W83L786NG_REG_FAN(nr) ((nr) + 0x28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define W83L786NG_REG_FAN_MIN(nr) ((nr) + 0x3B)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define W83L786NG_REG_CONFIG 0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define W83L786NG_REG_ALARM1 0x41
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define W83L786NG_REG_ALARM2 0x42
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define W83L786NG_REG_GPIO_EN 0x47
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define W83L786NG_REG_MAN_ID2 0x4C
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define W83L786NG_REG_MAN_ID1 0x4D
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define W83L786NG_REG_CHIP_ID 0x4E
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define W83L786NG_REG_DIODE 0x53
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define W83L786NG_REG_FAN_DIV 0x54
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define W83L786NG_REG_FAN_CFG 0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define W83L786NG_REG_TOLERANCE 0x8D
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static const u8 W83L786NG_REG_TEMP[2][3] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) { 0x25, /* TEMP 0 in DataSheet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 0x35, /* TEMP 0 Over in DataSheet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 0x36 }, /* TEMP 0 Hyst in DataSheet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) { 0x26, /* TEMP 1 in DataSheet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 0x37, /* TEMP 1 Over in DataSheet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 0x38 } /* TEMP 1 Hyst in DataSheet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static const u8 W83L786NG_PWM_MODE_SHIFT[] = {6, 7};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) static const u8 W83L786NG_PWM_ENABLE_SHIFT[] = {2, 4};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) /* FAN Duty Cycle, be used to control */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) static const u8 W83L786NG_REG_PWM[] = {0x81, 0x87};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) static inline u8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) FAN_TO_REG(long rpm, int div)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) if (rpm == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) return 255;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) rpm = clamp_val(rpm, 1, 1000000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) ((val) == 255 ? 0 : \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 1350000 / ((val) * (div))))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) /* for temp */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) #define TEMP_TO_REG(val) (clamp_val(((val) < 0 ? (val) + 0x100 * 1000 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) : (val)) / 1000, 0, 0xff))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) #define TEMP_FROM_REG(val) (((val) & 0x80 ? \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) (val) - 0x100 : (val)) * 1000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * The analog voltage inputs have 8mV LSB. Since the sysfs output is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) * in mV as would be measured on the chip input pin, need to just
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) * multiply/divide by 8 to translate from/to register values.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) #define IN_TO_REG(val) (clamp_val((((val) + 4) / 8), 0, 255))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) #define IN_FROM_REG(val) ((val) * 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) #define DIV_FROM_REG(val) (1 << (val))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) static inline u8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) DIV_TO_REG(long val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) val = clamp_val(val, 1, 128) >> 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) for (i = 0; i < 7; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) if (val == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) val >>= 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) return (u8)i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) struct w83l786ng_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) struct i2c_client *client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct mutex update_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) char valid; /* !=0 if following fields are valid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) unsigned long last_updated; /* In jiffies */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) unsigned long last_nonvolatile; /* In jiffies, last time we update the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) * nonvolatile registers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) u8 in[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) u8 in_max[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) u8 in_min[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) u8 fan[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) u8 fan_div[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) u8 fan_min[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) u8 temp_type[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) u8 temp[2][3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) u8 pwm[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) u8 pwm_mode[2]; /* 0->DC variable voltage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) * 1->PWM variable duty cycle */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) u8 pwm_enable[2]; /* 1->manual
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) * 2->thermal cruise (also called SmartFan I) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) u8 tolerance[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) static u8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) w83l786ng_read_value(struct i2c_client *client, u8 reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) return i2c_smbus_read_byte_data(client, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) w83l786ng_write_value(struct i2c_client *client, u8 reg, u8 value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) return i2c_smbus_write_byte_data(client, reg, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) static struct w83l786ng_data *w83l786ng_update_device(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) struct w83l786ng_data *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) int i, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) u8 reg_tmp, pwmcfg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) mutex_lock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) || !data->valid) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) dev_dbg(&client->dev, "Updating w83l786ng data.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) /* Update the voltages measured value and limits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) for (i = 0; i < 3; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) data->in[i] = w83l786ng_read_value(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) W83L786NG_REG_IN(i));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) data->in_min[i] = w83l786ng_read_value(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) W83L786NG_REG_IN_MIN(i));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) data->in_max[i] = w83l786ng_read_value(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) W83L786NG_REG_IN_MAX(i));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) /* Update the fan counts and limits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) for (i = 0; i < 2; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) data->fan[i] = w83l786ng_read_value(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) W83L786NG_REG_FAN(i));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) data->fan_min[i] = w83l786ng_read_value(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) W83L786NG_REG_FAN_MIN(i));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) /* Update the fan divisor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) reg_tmp = w83l786ng_read_value(client, W83L786NG_REG_FAN_DIV);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) data->fan_div[0] = reg_tmp & 0x07;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) data->fan_div[1] = (reg_tmp >> 4) & 0x07;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) pwmcfg = w83l786ng_read_value(client, W83L786NG_REG_FAN_CFG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) for (i = 0; i < 2; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) data->pwm_mode[i] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) ((pwmcfg >> W83L786NG_PWM_MODE_SHIFT[i]) & 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) ? 0 : 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) data->pwm_enable[i] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) ((pwmcfg >> W83L786NG_PWM_ENABLE_SHIFT[i]) & 3) + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) data->pwm[i] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) (w83l786ng_read_value(client, W83L786NG_REG_PWM[i])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) & 0x0f) * 0x11;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) /* Update the temperature sensors */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) for (i = 0; i < 2; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) for (j = 0; j < 3; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) data->temp[i][j] = w83l786ng_read_value(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) W83L786NG_REG_TEMP[i][j]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) /* Update Smart Fan I/II tolerance */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) reg_tmp = w83l786ng_read_value(client, W83L786NG_REG_TOLERANCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) data->tolerance[0] = reg_tmp & 0x0f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) data->last_updated = jiffies;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) data->valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) mutex_unlock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) return data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) /* following are the sysfs callback functions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) #define show_in_reg(reg) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) static ssize_t \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) show_##reg(struct device *dev, struct device_attribute *attr, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) char *buf) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) int nr = to_sensor_dev_attr(attr)->index; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) struct w83l786ng_data *data = w83l786ng_update_device(dev); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) return sprintf(buf, "%d\n", IN_FROM_REG(data->reg[nr])); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) show_in_reg(in)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) show_in_reg(in_min)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) show_in_reg(in_max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) #define store_in_reg(REG, reg) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) static ssize_t \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) store_in_##reg(struct device *dev, struct device_attribute *attr, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) const char *buf, size_t count) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) int nr = to_sensor_dev_attr(attr)->index; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) struct w83l786ng_data *data = dev_get_drvdata(dev); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) struct i2c_client *client = data->client; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) unsigned long val; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) int err = kstrtoul(buf, 10, &val); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) if (err) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) return err; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) mutex_lock(&data->update_lock); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) data->in_##reg[nr] = IN_TO_REG(val); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) w83l786ng_write_value(client, W83L786NG_REG_IN_##REG(nr), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) data->in_##reg[nr]); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) mutex_unlock(&data->update_lock); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) return count; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) store_in_reg(MIN, min)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) store_in_reg(MAX, max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) static struct sensor_device_attribute sda_in_input[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) static struct sensor_device_attribute sda_in_min[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) static struct sensor_device_attribute sda_in_max[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) #define show_fan_reg(reg) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) char *buf) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) int nr = to_sensor_dev_attr(attr)->index; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) struct w83l786ng_data *data = w83l786ng_update_device(dev); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) return sprintf(buf, "%d\n", \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) show_fan_reg(fan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) show_fan_reg(fan_min);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) store_fan_min(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) int nr = to_sensor_dev_attr(attr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) struct w83l786ng_data *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) unsigned long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) err = kstrtoul(buf, 10, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) mutex_lock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) w83l786ng_write_value(client, W83L786NG_REG_FAN_MIN(nr),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) data->fan_min[nr]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) mutex_unlock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) show_fan_div(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) int nr = to_sensor_dev_attr(attr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) struct w83l786ng_data *data = w83l786ng_update_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr]));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) * Note: we save and restore the fan minimum here, because its value is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) * determined in part by the fan divisor. This follows the principle of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) * least surprise; the user doesn't expect the fan minimum to change just
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) * because the divisor changed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) store_fan_div(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) int nr = to_sensor_dev_attr(attr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) struct w83l786ng_data *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) unsigned long min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) u8 tmp_fan_div;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) u8 fan_div_reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) u8 keep_mask = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) u8 new_shift = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) unsigned long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) err = kstrtoul(buf, 10, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) /* Save fan_min */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) mutex_lock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) data->fan_div[nr] = DIV_TO_REG(val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) switch (nr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) keep_mask = 0xf8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) new_shift = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) keep_mask = 0x8f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) new_shift = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) fan_div_reg = w83l786ng_read_value(client, W83L786NG_REG_FAN_DIV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) & keep_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) tmp_fan_div = (data->fan_div[nr] << new_shift) & ~keep_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) w83l786ng_write_value(client, W83L786NG_REG_FAN_DIV,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) fan_div_reg | tmp_fan_div);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) /* Restore fan_min */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) w83l786ng_write_value(client, W83L786NG_REG_FAN_MIN(nr),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) data->fan_min[nr]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) mutex_unlock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) static struct sensor_device_attribute sda_fan_input[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) static struct sensor_device_attribute sda_fan_min[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) store_fan_min, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) store_fan_min, 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) static struct sensor_device_attribute sda_fan_div[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) SENSOR_ATTR(fan1_div, S_IWUSR | S_IRUGO, show_fan_div,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) store_fan_div, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) SENSOR_ATTR(fan2_div, S_IWUSR | S_IRUGO, show_fan_div,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) store_fan_div, 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) /* read/write the temperature, includes measured value and limits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) show_temp(struct device *dev, struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) struct sensor_device_attribute_2 *sensor_attr =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) to_sensor_dev_attr_2(attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) int nr = sensor_attr->nr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) int index = sensor_attr->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) struct w83l786ng_data *data = w83l786ng_update_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr][index]));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) store_temp(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) struct sensor_device_attribute_2 *sensor_attr =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) to_sensor_dev_attr_2(attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) int nr = sensor_attr->nr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) int index = sensor_attr->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) struct w83l786ng_data *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) err = kstrtol(buf, 10, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) mutex_lock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) data->temp[nr][index] = TEMP_TO_REG(val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) w83l786ng_write_value(client, W83L786NG_REG_TEMP[nr][index],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) data->temp[nr][index]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) mutex_unlock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) static struct sensor_device_attribute_2 sda_temp_input[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) static struct sensor_device_attribute_2 sda_temp_max[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) show_temp, store_temp, 0, 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) show_temp, store_temp, 1, 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) static struct sensor_device_attribute_2 sda_temp_max_hyst[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) show_temp, store_temp, 0, 2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) show_temp, store_temp, 1, 2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) #define show_pwm_reg(reg) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) char *buf) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) struct w83l786ng_data *data = w83l786ng_update_device(dev); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) int nr = to_sensor_dev_attr(attr)->index; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) return sprintf(buf, "%d\n", data->reg[nr]); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) show_pwm_reg(pwm_mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) show_pwm_reg(pwm_enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) show_pwm_reg(pwm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) store_pwm_mode(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) int nr = to_sensor_dev_attr(attr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) struct w83l786ng_data *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) u8 reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) unsigned long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) err = kstrtoul(buf, 10, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) if (val > 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) mutex_lock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) data->pwm_mode[nr] = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) reg = w83l786ng_read_value(client, W83L786NG_REG_FAN_CFG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) reg &= ~(1 << W83L786NG_PWM_MODE_SHIFT[nr]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) if (!val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) reg |= 1 << W83L786NG_PWM_MODE_SHIFT[nr];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) w83l786ng_write_value(client, W83L786NG_REG_FAN_CFG, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) mutex_unlock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) store_pwm(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) int nr = to_sensor_dev_attr(attr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) struct w83l786ng_data *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) unsigned long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) err = kstrtoul(buf, 10, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) val = clamp_val(val, 0, 255);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) val = DIV_ROUND_CLOSEST(val, 0x11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) mutex_lock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) data->pwm[nr] = val * 0x11;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) val |= w83l786ng_read_value(client, W83L786NG_REG_PWM[nr]) & 0xf0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) w83l786ng_write_value(client, W83L786NG_REG_PWM[nr], val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) mutex_unlock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) store_pwm_enable(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) int nr = to_sensor_dev_attr(attr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) struct w83l786ng_data *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) u8 reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) unsigned long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) err = kstrtoul(buf, 10, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) if (!val || val > 2) /* only modes 1 and 2 are supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) mutex_lock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) reg = w83l786ng_read_value(client, W83L786NG_REG_FAN_CFG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) data->pwm_enable[nr] = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) reg &= ~(0x03 << W83L786NG_PWM_ENABLE_SHIFT[nr]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) reg |= (val - 1) << W83L786NG_PWM_ENABLE_SHIFT[nr];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) w83l786ng_write_value(client, W83L786NG_REG_FAN_CFG, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) mutex_unlock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) static struct sensor_device_attribute sda_pwm[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) static struct sensor_device_attribute sda_pwm_mode[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) SENSOR_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) store_pwm_mode, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) SENSOR_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) store_pwm_mode, 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) static struct sensor_device_attribute sda_pwm_enable[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) SENSOR_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) store_pwm_enable, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) SENSOR_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) store_pwm_enable, 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) /* For Smart Fan I/Thermal Cruise and Smart Fan II */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) show_tolerance(struct device *dev, struct device_attribute *attr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) int nr = to_sensor_dev_attr(attr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) struct w83l786ng_data *data = w83l786ng_update_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) return sprintf(buf, "%ld\n", (long)data->tolerance[nr]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) static ssize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) store_tolerance(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) int nr = to_sensor_dev_attr(attr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) struct w83l786ng_data *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) u8 tol_tmp, tol_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) unsigned long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) err = kstrtoul(buf, 10, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) mutex_lock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) tol_mask = w83l786ng_read_value(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) W83L786NG_REG_TOLERANCE) & ((nr == 1) ? 0x0f : 0xf0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) tol_tmp = clamp_val(val, 0, 15);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) tol_tmp &= 0x0f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) data->tolerance[nr] = tol_tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) if (nr == 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) tol_tmp <<= 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) w83l786ng_write_value(client, W83L786NG_REG_TOLERANCE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) tol_mask | tol_tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) mutex_unlock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) static struct sensor_device_attribute sda_tolerance[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) SENSOR_ATTR(pwm1_tolerance, S_IWUSR | S_IRUGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) show_tolerance, store_tolerance, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) SENSOR_ATTR(pwm2_tolerance, S_IWUSR | S_IRUGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) show_tolerance, store_tolerance, 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) #define IN_UNIT_ATTRS(X) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) &sda_in_input[X].dev_attr.attr, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) &sda_in_min[X].dev_attr.attr, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) &sda_in_max[X].dev_attr.attr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) #define FAN_UNIT_ATTRS(X) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) &sda_fan_input[X].dev_attr.attr, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) &sda_fan_min[X].dev_attr.attr, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) &sda_fan_div[X].dev_attr.attr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) #define TEMP_UNIT_ATTRS(X) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) &sda_temp_input[X].dev_attr.attr, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) &sda_temp_max[X].dev_attr.attr, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) &sda_temp_max_hyst[X].dev_attr.attr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) #define PWM_UNIT_ATTRS(X) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) &sda_pwm[X].dev_attr.attr, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) &sda_pwm_mode[X].dev_attr.attr, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) &sda_pwm_enable[X].dev_attr.attr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) #define TOLERANCE_UNIT_ATTRS(X) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) &sda_tolerance[X].dev_attr.attr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) static struct attribute *w83l786ng_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) IN_UNIT_ATTRS(0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) IN_UNIT_ATTRS(1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) IN_UNIT_ATTRS(2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) FAN_UNIT_ATTRS(0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) FAN_UNIT_ATTRS(1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) TEMP_UNIT_ATTRS(0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) TEMP_UNIT_ATTRS(1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) PWM_UNIT_ATTRS(0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) PWM_UNIT_ATTRS(1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) TOLERANCE_UNIT_ATTRS(0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) TOLERANCE_UNIT_ATTRS(1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) ATTRIBUTE_GROUPS(w83l786ng);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) w83l786ng_detect(struct i2c_client *client, struct i2c_board_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) struct i2c_adapter *adapter = client->adapter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) u16 man_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) u8 chip_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) /* Detection */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) if ((w83l786ng_read_value(client, W83L786NG_REG_CONFIG) & 0x80)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) dev_dbg(&adapter->dev, "W83L786NG detection failed at 0x%02x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) client->addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) /* Identification */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) man_id = (w83l786ng_read_value(client, W83L786NG_REG_MAN_ID1) << 8) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) w83l786ng_read_value(client, W83L786NG_REG_MAN_ID2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) chip_id = w83l786ng_read_value(client, W83L786NG_REG_CHIP_ID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) if (man_id != 0x5CA3 || /* Winbond */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) chip_id != 0x80) { /* W83L786NG */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) dev_dbg(&adapter->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) "Unsupported chip (man_id=0x%04X, chip_id=0x%02X)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) man_id, chip_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) strlcpy(info->type, "w83l786ng", I2C_NAME_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) static void w83l786ng_init_client(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) u8 tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) if (reset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) w83l786ng_write_value(client, W83L786NG_REG_CONFIG, 0x80);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) /* Start monitoring */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) tmp = w83l786ng_read_value(client, W83L786NG_REG_CONFIG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) if (!(tmp & 0x01))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) w83l786ng_write_value(client, W83L786NG_REG_CONFIG, tmp | 0x01);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) w83l786ng_probe(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) struct device *dev = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) struct w83l786ng_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) struct device *hwmon_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) u8 reg_tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) data = devm_kzalloc(dev, sizeof(struct w83l786ng_data), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) if (!data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) data->client = client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) mutex_init(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) /* Initialize the chip */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) w83l786ng_init_client(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) /* A few vars need to be filled upon startup */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) for (i = 0; i < 2; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) data->fan_min[i] = w83l786ng_read_value(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) W83L786NG_REG_FAN_MIN(i));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) /* Update the fan divisor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) reg_tmp = w83l786ng_read_value(client, W83L786NG_REG_FAN_DIV);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) data->fan_div[0] = reg_tmp & 0x07;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) data->fan_div[1] = (reg_tmp >> 4) & 0x07;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) w83l786ng_groups);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) return PTR_ERR_OR_ZERO(hwmon_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) static const struct i2c_device_id w83l786ng_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) { "w83l786ng", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) MODULE_DEVICE_TABLE(i2c, w83l786ng_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) static struct i2c_driver w83l786ng_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) .class = I2C_CLASS_HWMON,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) .name = "w83l786ng",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) .probe_new = w83l786ng_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) .id_table = w83l786ng_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) .detect = w83l786ng_detect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) .address_list = normal_i2c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) module_i2c_driver(w83l786ng_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) MODULE_AUTHOR("Kevin Lo");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) MODULE_DESCRIPTION("w83l786ng driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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