^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * adm1021.c - Part of lm_sensors, Linux kernel modules for hardware
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * monitoring
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl> and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Philip Edelbrock <phil@netroedge.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/jiffies.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/hwmon.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/hwmon-sysfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) /* Addresses to scan */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) static const unsigned short normal_i2c[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) enum chips {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) adm1021, adm1023, max1617, max1617a, thmc10, lm84, gl523sm, mc1066 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) /* adm1021 constants specified below */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) /* The adm1021 registers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) /* Read-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) /* For nr in 0-1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define ADM1021_REG_TEMP(nr) (nr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define ADM1021_REG_STATUS 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) /* 0x41 = AD, 0x49 = TI, 0x4D = Maxim, 0x23 = Genesys , 0x54 = Onsemi */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define ADM1021_REG_MAN_ID 0xFE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) /* ADM1021 = 0x0X, ADM1023 = 0x3X */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define ADM1021_REG_DEV_ID 0xFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) /* These use different addresses for reading/writing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define ADM1021_REG_CONFIG_R 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define ADM1021_REG_CONFIG_W 0x09
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define ADM1021_REG_CONV_RATE_R 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define ADM1021_REG_CONV_RATE_W 0x0A
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) /* These are for the ADM1023's additional precision on the remote temp sensor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define ADM1023_REG_REM_TEMP_PREC 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define ADM1023_REG_REM_OFFSET 0x11
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define ADM1023_REG_REM_OFFSET_PREC 0x12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define ADM1023_REG_REM_TOS_PREC 0x13
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define ADM1023_REG_REM_THYST_PREC 0x14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) /* limits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) /* For nr in 0-1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define ADM1021_REG_TOS_R(nr) (0x05 + 2 * (nr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define ADM1021_REG_TOS_W(nr) (0x0B + 2 * (nr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define ADM1021_REG_THYST_R(nr) (0x06 + 2 * (nr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define ADM1021_REG_THYST_W(nr) (0x0C + 2 * (nr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) /* write-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define ADM1021_REG_ONESHOT 0x0F
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) /* Initial values */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) * Note: Even though I left the low and high limits named os and hyst,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) * they don't quite work like a thermostat the way the LM75 does. I.e.,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) * a lower temp than THYST actually triggers an alarm instead of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) * clearing it. Weird, ey? --Phil
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) /* Each client has this additional data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) struct adm1021_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct i2c_client *client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) enum chips type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) const struct attribute_group *groups[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) struct mutex update_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) char valid; /* !=0 if following fields are valid */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) char low_power; /* !=0 if device in low power mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) unsigned long last_updated; /* In jiffies */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) int temp_max[2]; /* Register values */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) int temp_min[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) int temp[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) u8 alarms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) /* Special values for ADM1023 only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) u8 remote_temp_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) u8 remote_temp_offset_prec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) /* (amalysh) read only mode, otherwise any limit's writing confuse BIOS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static bool read_only;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) static struct adm1021_data *adm1021_update_device(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) struct adm1021_data *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) mutex_lock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) || !data->valid) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) dev_dbg(dev, "Starting adm1021 update\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) for (i = 0; i < 2; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) data->temp[i] = 1000 *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) (s8) i2c_smbus_read_byte_data(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) client, ADM1021_REG_TEMP(i));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) data->temp_max[i] = 1000 *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) (s8) i2c_smbus_read_byte_data(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) client, ADM1021_REG_TOS_R(i));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) if (data->type != lm84) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) data->temp_min[i] = 1000 *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) (s8) i2c_smbus_read_byte_data(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) ADM1021_REG_THYST_R(i));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) data->alarms = i2c_smbus_read_byte_data(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) ADM1021_REG_STATUS) & 0x7c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) if (data->type == adm1023) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) * The ADM1023 provides 3 extra bits of precision for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) * the remote sensor in extra registers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) data->temp[1] += 125 * (i2c_smbus_read_byte_data(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) client, ADM1023_REG_REM_TEMP_PREC) >> 5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) data->temp_max[1] += 125 * (i2c_smbus_read_byte_data(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) client, ADM1023_REG_REM_TOS_PREC) >> 5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) data->temp_min[1] += 125 * (i2c_smbus_read_byte_data(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) client, ADM1023_REG_REM_THYST_PREC) >> 5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) data->remote_temp_offset =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) i2c_smbus_read_byte_data(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) ADM1023_REG_REM_OFFSET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) data->remote_temp_offset_prec =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) i2c_smbus_read_byte_data(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) ADM1023_REG_REM_OFFSET_PREC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) data->last_updated = jiffies;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) data->valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) mutex_unlock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) return data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) static ssize_t temp_show(struct device *dev, struct device_attribute *devattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) int index = to_sensor_dev_attr(devattr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) struct adm1021_data *data = adm1021_update_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) return sprintf(buf, "%d\n", data->temp[index]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) static ssize_t temp_max_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) struct device_attribute *devattr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) int index = to_sensor_dev_attr(devattr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) struct adm1021_data *data = adm1021_update_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) return sprintf(buf, "%d\n", data->temp_max[index]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) static ssize_t temp_min_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) struct device_attribute *devattr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) int index = to_sensor_dev_attr(devattr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) struct adm1021_data *data = adm1021_update_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) return sprintf(buf, "%d\n", data->temp_min[index]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) static ssize_t alarm_show(struct device *dev, struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) int index = to_sensor_dev_attr(attr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) struct adm1021_data *data = adm1021_update_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) return sprintf(buf, "%u\n", (data->alarms >> index) & 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) static ssize_t alarms_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) struct adm1021_data *data = adm1021_update_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) return sprintf(buf, "%u\n", data->alarms);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) static ssize_t temp_max_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) struct device_attribute *devattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) int index = to_sensor_dev_attr(devattr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) struct adm1021_data *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) long temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) int reg_val, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) err = kstrtol(buf, 10, &temp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) temp /= 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) mutex_lock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) reg_val = clamp_val(temp, -128, 127);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) data->temp_max[index] = reg_val * 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) if (!read_only)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) i2c_smbus_write_byte_data(client, ADM1021_REG_TOS_W(index),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) mutex_unlock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) return count;
^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) static ssize_t temp_min_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) struct device_attribute *devattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) int index = to_sensor_dev_attr(devattr)->index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) struct adm1021_data *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) long temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) int reg_val, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) err = kstrtol(buf, 10, &temp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) temp /= 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) mutex_lock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) reg_val = clamp_val(temp, -128, 127);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) data->temp_min[index] = reg_val * 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) if (!read_only)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) i2c_smbus_write_byte_data(client, ADM1021_REG_THYST_W(index),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) mutex_unlock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) static ssize_t low_power_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) struct device_attribute *devattr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) struct adm1021_data *data = adm1021_update_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) return sprintf(buf, "%d\n", data->low_power);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) static ssize_t low_power_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) struct device_attribute *devattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) struct adm1021_data *data = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) char low_power;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) unsigned long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) err = kstrtoul(buf, 10, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) low_power = val != 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) mutex_lock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) if (low_power != data->low_power) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) int config = i2c_smbus_read_byte_data(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) client, ADM1021_REG_CONFIG_R);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) data->low_power = low_power;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) i2c_smbus_write_byte_data(client, ADM1021_REG_CONFIG_W,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) (config & 0xBF) | (low_power << 6));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) mutex_unlock(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) }
^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) static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_min, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_min, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) static SENSOR_DEVICE_ATTR_RO(temp1_max_alarm, alarm, 6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) static SENSOR_DEVICE_ATTR_RO(temp1_min_alarm, alarm, 5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) static SENSOR_DEVICE_ATTR_RO(temp2_max_alarm, alarm, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) static SENSOR_DEVICE_ATTR_RO(temp2_min_alarm, alarm, 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) static SENSOR_DEVICE_ATTR_RO(temp2_fault, alarm, 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) static DEVICE_ATTR_RO(alarms);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) static DEVICE_ATTR_RW(low_power);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) static struct attribute *adm1021_attributes[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) &sensor_dev_attr_temp1_max.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) &sensor_dev_attr_temp1_input.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) &sensor_dev_attr_temp2_max.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) &sensor_dev_attr_temp2_input.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) &sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) &sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) &sensor_dev_attr_temp2_fault.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) &dev_attr_alarms.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) &dev_attr_low_power.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) static const struct attribute_group adm1021_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) .attrs = adm1021_attributes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) static struct attribute *adm1021_min_attributes[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) &sensor_dev_attr_temp1_min.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) &sensor_dev_attr_temp2_min.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) &sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) &sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) static const struct attribute_group adm1021_min_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) .attrs = adm1021_min_attributes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) /* Return 0 if detection is successful, -ENODEV otherwise */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) static int adm1021_detect(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) struct i2c_board_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) struct i2c_adapter *adapter = client->adapter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) const char *type_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) int conv_rate, status, config, man_id, dev_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) pr_debug("detect failed, smbus byte data not supported!\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) status = i2c_smbus_read_byte_data(client, ADM1021_REG_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) conv_rate = i2c_smbus_read_byte_data(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) ADM1021_REG_CONV_RATE_R);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) config = i2c_smbus_read_byte_data(client, ADM1021_REG_CONFIG_R);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) /* Check unused bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) if ((status & 0x03) || (config & 0x3F) || (conv_rate & 0xF8)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) pr_debug("detect failed, chip not detected!\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) /* Determine the chip type. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) man_id = i2c_smbus_read_byte_data(client, ADM1021_REG_MAN_ID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) dev_id = i2c_smbus_read_byte_data(client, ADM1021_REG_DEV_ID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) if (man_id < 0 || dev_id < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) if (man_id == 0x4d && dev_id == 0x01)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) type_name = "max1617a";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) else if (man_id == 0x41) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) if ((dev_id & 0xF0) == 0x30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) type_name = "adm1023";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) else if ((dev_id & 0xF0) == 0x00)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) type_name = "adm1021";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) } else if (man_id == 0x49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) type_name = "thmc10";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) else if (man_id == 0x23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) type_name = "gl523sm";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) else if (man_id == 0x54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) type_name = "mc1066";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) int lte, rte, lhi, rhi, llo, rlo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) /* extra checks for LM84 and MAX1617 to avoid misdetections */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) llo = i2c_smbus_read_byte_data(client, ADM1021_REG_THYST_R(0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) rlo = i2c_smbus_read_byte_data(client, ADM1021_REG_THYST_R(1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) /* fail if any of the additional register reads failed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) if (llo < 0 || rlo < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) lte = i2c_smbus_read_byte_data(client, ADM1021_REG_TEMP(0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) rte = i2c_smbus_read_byte_data(client, ADM1021_REG_TEMP(1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) lhi = i2c_smbus_read_byte_data(client, ADM1021_REG_TOS_R(0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) rhi = i2c_smbus_read_byte_data(client, ADM1021_REG_TOS_R(1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) * Fail for negative temperatures and negative high limits.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) * This check also catches read errors on the tested registers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) if ((s8)lte < 0 || (s8)rte < 0 || (s8)lhi < 0 || (s8)rhi < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) /* fail if all registers hold the same value */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) if (lte == rte && lte == lhi && lte == rhi && lte == llo
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) && lte == rlo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) * LM84 Mfr ID is in a different place,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) * and it has more unused bits.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) if (conv_rate == 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) && (config & 0x7F) == 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) && (status & 0xAB) == 0x00) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) type_name = "lm84";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) /* fail if low limits are larger than high limits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) if ((s8)llo > lhi || (s8)rlo > rhi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) type_name = "max1617";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) pr_debug("Detected chip %s at adapter %d, address 0x%02x.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) type_name, i2c_adapter_id(adapter), client->addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) strlcpy(info->type, type_name, I2C_NAME_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) static void adm1021_init_client(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) /* Enable ADC and disable suspend mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) i2c_smbus_write_byte_data(client, ADM1021_REG_CONFIG_W,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) i2c_smbus_read_byte_data(client, ADM1021_REG_CONFIG_R) & 0xBF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) /* Set Conversion rate to 1/sec (this can be tinkered with) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) i2c_smbus_write_byte_data(client, ADM1021_REG_CONV_RATE_W, 0x04);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) static const struct i2c_device_id adm1021_id[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) static int adm1021_probe(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) struct device *dev = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) struct adm1021_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) struct device *hwmon_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) data = devm_kzalloc(dev, sizeof(struct adm1021_data), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) if (!data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) data->client = client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) data->type = i2c_match_id(adm1021_id, client)->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) mutex_init(&data->update_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) /* Initialize the ADM1021 chip */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) if (data->type != lm84 && !read_only)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) adm1021_init_client(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) data->groups[0] = &adm1021_group;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) if (data->type != lm84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) data->groups[1] = &adm1021_min_group;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) data, data->groups);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) return PTR_ERR_OR_ZERO(hwmon_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) static const struct i2c_device_id adm1021_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) { "adm1021", adm1021 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) { "adm1023", adm1023 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) { "max1617", max1617 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) { "max1617a", max1617a },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) { "thmc10", thmc10 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) { "lm84", lm84 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) { "gl523sm", gl523sm },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) { "mc1066", mc1066 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) MODULE_DEVICE_TABLE(i2c, adm1021_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) static struct i2c_driver adm1021_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) .class = I2C_CLASS_HWMON,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) .name = "adm1021",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) .probe_new = adm1021_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) .id_table = adm1021_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) .detect = adm1021_detect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) .address_list = normal_i2c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) module_i2c_driver(adm1021_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl> and "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) "Philip Edelbrock <phil@netroedge.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) MODULE_DESCRIPTION("adm1021 driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) module_param(read_only, bool, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) MODULE_PARM_DESC(read_only, "Don't set any values, read only mode");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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