Thomas Gleixner | 1a59d1b8 | 2019-05-27 08:55:05 +0200 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 2 | /*************************************************************************** |
Hans de Goede | 312869e | 2012-03-18 13:05:08 +0100 | [diff] [blame] | 3 | * Copyright (C) 2011-2012 Hans de Goede <hdegoede@redhat.com> * |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 4 | * * |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 5 | ***************************************************************************/ |
| 6 | |
| 7 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 8 | |
| 9 | #include <linux/module.h> |
Armin Wolf | 4db3c09 | 2022-01-31 22:19:32 +0100 | [diff] [blame] | 10 | #include <linux/mod_devicetable.h> |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 11 | #include <linux/init.h> |
| 12 | #include <linux/slab.h> |
| 13 | #include <linux/jiffies.h> |
| 14 | #include <linux/platform_device.h> |
| 15 | #include <linux/hwmon.h> |
| 16 | #include <linux/hwmon-sysfs.h> |
| 17 | #include <linux/err.h> |
| 18 | #include <linux/mutex.h> |
| 19 | #include "sch56xx-common.h" |
| 20 | |
| 21 | #define DRVNAME "sch5636" |
| 22 | #define DEVNAME "theseus" /* We only support one model for now */ |
| 23 | |
| 24 | #define SCH5636_REG_FUJITSU_ID 0x780 |
| 25 | #define SCH5636_REG_FUJITSU_REV 0x783 |
| 26 | |
| 27 | #define SCH5636_NO_INS 5 |
| 28 | #define SCH5636_NO_TEMPS 16 |
| 29 | #define SCH5636_NO_FANS 8 |
| 30 | |
| 31 | static const u16 SCH5636_REG_IN_VAL[SCH5636_NO_INS] = { |
| 32 | 0x22, 0x23, 0x24, 0x25, 0x189 }; |
| 33 | static const u16 SCH5636_REG_IN_FACTORS[SCH5636_NO_INS] = { |
| 34 | 4400, 1500, 4000, 4400, 16000 }; |
| 35 | static const char * const SCH5636_IN_LABELS[SCH5636_NO_INS] = { |
| 36 | "3.3V", "VREF", "VBAT", "3.3AUX", "12V" }; |
| 37 | |
| 38 | static const u16 SCH5636_REG_TEMP_VAL[SCH5636_NO_TEMPS] = { |
| 39 | 0x2B, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x180, 0x181, |
| 40 | 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C }; |
| 41 | #define SCH5636_REG_TEMP_CTRL(i) (0x790 + (i)) |
| 42 | #define SCH5636_TEMP_WORKING 0x01 |
| 43 | #define SCH5636_TEMP_ALARM 0x02 |
| 44 | #define SCH5636_TEMP_DEACTIVATED 0x80 |
| 45 | |
| 46 | static const u16 SCH5636_REG_FAN_VAL[SCH5636_NO_FANS] = { |
| 47 | 0x2C, 0x2E, 0x30, 0x32, 0x62, 0x64, 0x66, 0x68 }; |
| 48 | #define SCH5636_REG_FAN_CTRL(i) (0x880 + (i)) |
| 49 | /* FAULT in datasheet, but acts as an alarm */ |
| 50 | #define SCH5636_FAN_ALARM 0x04 |
| 51 | #define SCH5636_FAN_NOT_PRESENT 0x08 |
| 52 | #define SCH5636_FAN_DEACTIVATED 0x80 |
| 53 | |
| 54 | |
| 55 | struct sch5636_data { |
| 56 | unsigned short addr; |
| 57 | struct device *hwmon_dev; |
| 58 | |
| 59 | struct mutex update_lock; |
Paul Fertser | 952a11c | 2021-09-24 22:52:02 +0300 | [diff] [blame] | 60 | bool valid; /* true if following fields are valid */ |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 61 | unsigned long last_updated; /* In jiffies */ |
| 62 | u8 in[SCH5636_NO_INS]; |
| 63 | u8 temp_val[SCH5636_NO_TEMPS]; |
| 64 | u8 temp_ctrl[SCH5636_NO_TEMPS]; |
| 65 | u16 fan_val[SCH5636_NO_FANS]; |
| 66 | u8 fan_ctrl[SCH5636_NO_FANS]; |
| 67 | }; |
| 68 | |
| 69 | static struct sch5636_data *sch5636_update_device(struct device *dev) |
| 70 | { |
| 71 | struct sch5636_data *data = dev_get_drvdata(dev); |
| 72 | struct sch5636_data *ret = data; |
| 73 | int i, val; |
| 74 | |
| 75 | mutex_lock(&data->update_lock); |
| 76 | |
| 77 | /* Cache the values for 1 second */ |
| 78 | if (data->valid && !time_after(jiffies, data->last_updated + HZ)) |
| 79 | goto abort; |
| 80 | |
| 81 | for (i = 0; i < SCH5636_NO_INS; i++) { |
| 82 | val = sch56xx_read_virtual_reg(data->addr, |
| 83 | SCH5636_REG_IN_VAL[i]); |
| 84 | if (unlikely(val < 0)) { |
| 85 | ret = ERR_PTR(val); |
| 86 | goto abort; |
| 87 | } |
| 88 | data->in[i] = val; |
| 89 | } |
| 90 | |
| 91 | for (i = 0; i < SCH5636_NO_TEMPS; i++) { |
| 92 | if (data->temp_ctrl[i] & SCH5636_TEMP_DEACTIVATED) |
| 93 | continue; |
| 94 | |
| 95 | val = sch56xx_read_virtual_reg(data->addr, |
| 96 | SCH5636_REG_TEMP_VAL[i]); |
| 97 | if (unlikely(val < 0)) { |
| 98 | ret = ERR_PTR(val); |
| 99 | goto abort; |
| 100 | } |
| 101 | data->temp_val[i] = val; |
| 102 | |
| 103 | val = sch56xx_read_virtual_reg(data->addr, |
| 104 | SCH5636_REG_TEMP_CTRL(i)); |
| 105 | if (unlikely(val < 0)) { |
| 106 | ret = ERR_PTR(val); |
| 107 | goto abort; |
| 108 | } |
| 109 | data->temp_ctrl[i] = val; |
| 110 | /* Alarms need to be explicitly write-cleared */ |
| 111 | if (val & SCH5636_TEMP_ALARM) { |
| 112 | sch56xx_write_virtual_reg(data->addr, |
| 113 | SCH5636_REG_TEMP_CTRL(i), val); |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | for (i = 0; i < SCH5636_NO_FANS; i++) { |
| 118 | if (data->fan_ctrl[i] & SCH5636_FAN_DEACTIVATED) |
| 119 | continue; |
| 120 | |
| 121 | val = sch56xx_read_virtual_reg16(data->addr, |
| 122 | SCH5636_REG_FAN_VAL[i]); |
| 123 | if (unlikely(val < 0)) { |
| 124 | ret = ERR_PTR(val); |
| 125 | goto abort; |
| 126 | } |
| 127 | data->fan_val[i] = val; |
| 128 | |
| 129 | val = sch56xx_read_virtual_reg(data->addr, |
| 130 | SCH5636_REG_FAN_CTRL(i)); |
| 131 | if (unlikely(val < 0)) { |
| 132 | ret = ERR_PTR(val); |
| 133 | goto abort; |
| 134 | } |
| 135 | data->fan_ctrl[i] = val; |
| 136 | /* Alarms need to be explicitly write-cleared */ |
| 137 | if (val & SCH5636_FAN_ALARM) { |
| 138 | sch56xx_write_virtual_reg(data->addr, |
| 139 | SCH5636_REG_FAN_CTRL(i), val); |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | data->last_updated = jiffies; |
Paul Fertser | 952a11c | 2021-09-24 22:52:02 +0300 | [diff] [blame] | 144 | data->valid = true; |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 145 | abort: |
| 146 | mutex_unlock(&data->update_lock); |
| 147 | return ret; |
| 148 | } |
| 149 | |
| 150 | static int reg_to_rpm(u16 reg) |
| 151 | { |
| 152 | if (reg == 0) |
| 153 | return -EIO; |
| 154 | if (reg == 0xffff) |
| 155 | return 0; |
| 156 | |
| 157 | return 5400540 / reg; |
| 158 | } |
| 159 | |
Guenter Roeck | 80c6b12 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 160 | static ssize_t name_show(struct device *dev, struct device_attribute *devattr, |
| 161 | char *buf) |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 162 | { |
Guenter Roeck | 1f4d4af | 2021-03-21 20:49:10 -0700 | [diff] [blame] | 163 | return sysfs_emit(buf, "%s\n", DEVNAME); |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 164 | } |
| 165 | |
Guenter Roeck | 80c6b12 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 166 | static ssize_t in_value_show(struct device *dev, |
| 167 | struct device_attribute *devattr, char *buf) |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 168 | { |
| 169 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| 170 | struct sch5636_data *data = sch5636_update_device(dev); |
| 171 | int val; |
| 172 | |
| 173 | if (IS_ERR(data)) |
| 174 | return PTR_ERR(data); |
| 175 | |
| 176 | val = DIV_ROUND_CLOSEST( |
| 177 | data->in[attr->index] * SCH5636_REG_IN_FACTORS[attr->index], |
| 178 | 255); |
Guenter Roeck | 1f4d4af | 2021-03-21 20:49:10 -0700 | [diff] [blame] | 179 | return sysfs_emit(buf, "%d\n", val); |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 180 | } |
| 181 | |
Guenter Roeck | 80c6b12 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 182 | static ssize_t in_label_show(struct device *dev, |
| 183 | struct device_attribute *devattr, char *buf) |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 184 | { |
| 185 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| 186 | |
Guenter Roeck | 1f4d4af | 2021-03-21 20:49:10 -0700 | [diff] [blame] | 187 | return sysfs_emit(buf, "%s\n", |
| 188 | SCH5636_IN_LABELS[attr->index]); |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 189 | } |
| 190 | |
Guenter Roeck | 80c6b12 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 191 | static ssize_t temp_value_show(struct device *dev, |
| 192 | struct device_attribute *devattr, char *buf) |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 193 | { |
| 194 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| 195 | struct sch5636_data *data = sch5636_update_device(dev); |
| 196 | int val; |
| 197 | |
| 198 | if (IS_ERR(data)) |
| 199 | return PTR_ERR(data); |
| 200 | |
| 201 | val = (data->temp_val[attr->index] - 64) * 1000; |
Guenter Roeck | 1f4d4af | 2021-03-21 20:49:10 -0700 | [diff] [blame] | 202 | return sysfs_emit(buf, "%d\n", val); |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 203 | } |
| 204 | |
Guenter Roeck | 80c6b12 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 205 | static ssize_t temp_fault_show(struct device *dev, |
| 206 | struct device_attribute *devattr, char *buf) |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 207 | { |
| 208 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| 209 | struct sch5636_data *data = sch5636_update_device(dev); |
| 210 | int val; |
| 211 | |
| 212 | if (IS_ERR(data)) |
| 213 | return PTR_ERR(data); |
| 214 | |
| 215 | val = (data->temp_ctrl[attr->index] & SCH5636_TEMP_WORKING) ? 0 : 1; |
Guenter Roeck | 1f4d4af | 2021-03-21 20:49:10 -0700 | [diff] [blame] | 216 | return sysfs_emit(buf, "%d\n", val); |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 217 | } |
| 218 | |
Guenter Roeck | 80c6b12 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 219 | static ssize_t temp_alarm_show(struct device *dev, |
| 220 | struct device_attribute *devattr, char *buf) |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 221 | { |
| 222 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| 223 | struct sch5636_data *data = sch5636_update_device(dev); |
| 224 | int val; |
| 225 | |
| 226 | if (IS_ERR(data)) |
| 227 | return PTR_ERR(data); |
| 228 | |
| 229 | val = (data->temp_ctrl[attr->index] & SCH5636_TEMP_ALARM) ? 1 : 0; |
Guenter Roeck | 1f4d4af | 2021-03-21 20:49:10 -0700 | [diff] [blame] | 230 | return sysfs_emit(buf, "%d\n", val); |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 231 | } |
| 232 | |
Guenter Roeck | 80c6b12 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 233 | static ssize_t fan_value_show(struct device *dev, |
| 234 | struct device_attribute *devattr, char *buf) |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 235 | { |
| 236 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| 237 | struct sch5636_data *data = sch5636_update_device(dev); |
| 238 | int val; |
| 239 | |
| 240 | if (IS_ERR(data)) |
| 241 | return PTR_ERR(data); |
| 242 | |
| 243 | val = reg_to_rpm(data->fan_val[attr->index]); |
| 244 | if (val < 0) |
| 245 | return val; |
| 246 | |
Guenter Roeck | 1f4d4af | 2021-03-21 20:49:10 -0700 | [diff] [blame] | 247 | return sysfs_emit(buf, "%d\n", val); |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 248 | } |
| 249 | |
Guenter Roeck | 80c6b12 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 250 | static ssize_t fan_fault_show(struct device *dev, |
| 251 | struct device_attribute *devattr, char *buf) |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 252 | { |
| 253 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| 254 | struct sch5636_data *data = sch5636_update_device(dev); |
| 255 | int val; |
| 256 | |
| 257 | if (IS_ERR(data)) |
| 258 | return PTR_ERR(data); |
| 259 | |
| 260 | val = (data->fan_ctrl[attr->index] & SCH5636_FAN_NOT_PRESENT) ? 1 : 0; |
Guenter Roeck | 1f4d4af | 2021-03-21 20:49:10 -0700 | [diff] [blame] | 261 | return sysfs_emit(buf, "%d\n", val); |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 262 | } |
| 263 | |
Guenter Roeck | 80c6b12 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 264 | static ssize_t fan_alarm_show(struct device *dev, |
| 265 | struct device_attribute *devattr, char *buf) |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 266 | { |
| 267 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); |
| 268 | struct sch5636_data *data = sch5636_update_device(dev); |
| 269 | int val; |
| 270 | |
| 271 | if (IS_ERR(data)) |
| 272 | return PTR_ERR(data); |
| 273 | |
| 274 | val = (data->fan_ctrl[attr->index] & SCH5636_FAN_ALARM) ? 1 : 0; |
Guenter Roeck | 1f4d4af | 2021-03-21 20:49:10 -0700 | [diff] [blame] | 275 | return sysfs_emit(buf, "%d\n", val); |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 276 | } |
| 277 | |
| 278 | static struct sensor_device_attribute sch5636_attr[] = { |
Guenter Roeck | 80c6b12 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 279 | SENSOR_ATTR_RO(name, name, 0), |
| 280 | SENSOR_ATTR_RO(in0_input, in_value, 0), |
| 281 | SENSOR_ATTR_RO(in0_label, in_label, 0), |
| 282 | SENSOR_ATTR_RO(in1_input, in_value, 1), |
| 283 | SENSOR_ATTR_RO(in1_label, in_label, 1), |
| 284 | SENSOR_ATTR_RO(in2_input, in_value, 2), |
| 285 | SENSOR_ATTR_RO(in2_label, in_label, 2), |
| 286 | SENSOR_ATTR_RO(in3_input, in_value, 3), |
| 287 | SENSOR_ATTR_RO(in3_label, in_label, 3), |
| 288 | SENSOR_ATTR_RO(in4_input, in_value, 4), |
| 289 | SENSOR_ATTR_RO(in4_label, in_label, 4), |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 290 | }; |
| 291 | |
| 292 | static struct sensor_device_attribute sch5636_temp_attr[] = { |
Guenter Roeck | 80c6b12 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 293 | SENSOR_ATTR_RO(temp1_input, temp_value, 0), |
| 294 | SENSOR_ATTR_RO(temp1_fault, temp_fault, 0), |
| 295 | SENSOR_ATTR_RO(temp1_alarm, temp_alarm, 0), |
| 296 | SENSOR_ATTR_RO(temp2_input, temp_value, 1), |
| 297 | SENSOR_ATTR_RO(temp2_fault, temp_fault, 1), |
| 298 | SENSOR_ATTR_RO(temp2_alarm, temp_alarm, 1), |
| 299 | SENSOR_ATTR_RO(temp3_input, temp_value, 2), |
| 300 | SENSOR_ATTR_RO(temp3_fault, temp_fault, 2), |
| 301 | SENSOR_ATTR_RO(temp3_alarm, temp_alarm, 2), |
| 302 | SENSOR_ATTR_RO(temp4_input, temp_value, 3), |
| 303 | SENSOR_ATTR_RO(temp4_fault, temp_fault, 3), |
| 304 | SENSOR_ATTR_RO(temp4_alarm, temp_alarm, 3), |
| 305 | SENSOR_ATTR_RO(temp5_input, temp_value, 4), |
| 306 | SENSOR_ATTR_RO(temp5_fault, temp_fault, 4), |
| 307 | SENSOR_ATTR_RO(temp5_alarm, temp_alarm, 4), |
| 308 | SENSOR_ATTR_RO(temp6_input, temp_value, 5), |
| 309 | SENSOR_ATTR_RO(temp6_fault, temp_fault, 5), |
| 310 | SENSOR_ATTR_RO(temp6_alarm, temp_alarm, 5), |
| 311 | SENSOR_ATTR_RO(temp7_input, temp_value, 6), |
| 312 | SENSOR_ATTR_RO(temp7_fault, temp_fault, 6), |
| 313 | SENSOR_ATTR_RO(temp7_alarm, temp_alarm, 6), |
| 314 | SENSOR_ATTR_RO(temp8_input, temp_value, 7), |
| 315 | SENSOR_ATTR_RO(temp8_fault, temp_fault, 7), |
| 316 | SENSOR_ATTR_RO(temp8_alarm, temp_alarm, 7), |
| 317 | SENSOR_ATTR_RO(temp9_input, temp_value, 8), |
| 318 | SENSOR_ATTR_RO(temp9_fault, temp_fault, 8), |
| 319 | SENSOR_ATTR_RO(temp9_alarm, temp_alarm, 8), |
| 320 | SENSOR_ATTR_RO(temp10_input, temp_value, 9), |
| 321 | SENSOR_ATTR_RO(temp10_fault, temp_fault, 9), |
| 322 | SENSOR_ATTR_RO(temp10_alarm, temp_alarm, 9), |
| 323 | SENSOR_ATTR_RO(temp11_input, temp_value, 10), |
| 324 | SENSOR_ATTR_RO(temp11_fault, temp_fault, 10), |
| 325 | SENSOR_ATTR_RO(temp11_alarm, temp_alarm, 10), |
| 326 | SENSOR_ATTR_RO(temp12_input, temp_value, 11), |
| 327 | SENSOR_ATTR_RO(temp12_fault, temp_fault, 11), |
| 328 | SENSOR_ATTR_RO(temp12_alarm, temp_alarm, 11), |
| 329 | SENSOR_ATTR_RO(temp13_input, temp_value, 12), |
| 330 | SENSOR_ATTR_RO(temp13_fault, temp_fault, 12), |
| 331 | SENSOR_ATTR_RO(temp13_alarm, temp_alarm, 12), |
| 332 | SENSOR_ATTR_RO(temp14_input, temp_value, 13), |
| 333 | SENSOR_ATTR_RO(temp14_fault, temp_fault, 13), |
| 334 | SENSOR_ATTR_RO(temp14_alarm, temp_alarm, 13), |
| 335 | SENSOR_ATTR_RO(temp15_input, temp_value, 14), |
| 336 | SENSOR_ATTR_RO(temp15_fault, temp_fault, 14), |
| 337 | SENSOR_ATTR_RO(temp15_alarm, temp_alarm, 14), |
| 338 | SENSOR_ATTR_RO(temp16_input, temp_value, 15), |
| 339 | SENSOR_ATTR_RO(temp16_fault, temp_fault, 15), |
| 340 | SENSOR_ATTR_RO(temp16_alarm, temp_alarm, 15), |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 341 | }; |
| 342 | |
| 343 | static struct sensor_device_attribute sch5636_fan_attr[] = { |
Guenter Roeck | 80c6b12 | 2018-12-10 14:02:19 -0800 | [diff] [blame] | 344 | SENSOR_ATTR_RO(fan1_input, fan_value, 0), |
| 345 | SENSOR_ATTR_RO(fan1_fault, fan_fault, 0), |
| 346 | SENSOR_ATTR_RO(fan1_alarm, fan_alarm, 0), |
| 347 | SENSOR_ATTR_RO(fan2_input, fan_value, 1), |
| 348 | SENSOR_ATTR_RO(fan2_fault, fan_fault, 1), |
| 349 | SENSOR_ATTR_RO(fan2_alarm, fan_alarm, 1), |
| 350 | SENSOR_ATTR_RO(fan3_input, fan_value, 2), |
| 351 | SENSOR_ATTR_RO(fan3_fault, fan_fault, 2), |
| 352 | SENSOR_ATTR_RO(fan3_alarm, fan_alarm, 2), |
| 353 | SENSOR_ATTR_RO(fan4_input, fan_value, 3), |
| 354 | SENSOR_ATTR_RO(fan4_fault, fan_fault, 3), |
| 355 | SENSOR_ATTR_RO(fan4_alarm, fan_alarm, 3), |
| 356 | SENSOR_ATTR_RO(fan5_input, fan_value, 4), |
| 357 | SENSOR_ATTR_RO(fan5_fault, fan_fault, 4), |
| 358 | SENSOR_ATTR_RO(fan5_alarm, fan_alarm, 4), |
| 359 | SENSOR_ATTR_RO(fan6_input, fan_value, 5), |
| 360 | SENSOR_ATTR_RO(fan6_fault, fan_fault, 5), |
| 361 | SENSOR_ATTR_RO(fan6_alarm, fan_alarm, 5), |
| 362 | SENSOR_ATTR_RO(fan7_input, fan_value, 6), |
| 363 | SENSOR_ATTR_RO(fan7_fault, fan_fault, 6), |
| 364 | SENSOR_ATTR_RO(fan7_alarm, fan_alarm, 6), |
| 365 | SENSOR_ATTR_RO(fan8_input, fan_value, 7), |
| 366 | SENSOR_ATTR_RO(fan8_fault, fan_fault, 7), |
| 367 | SENSOR_ATTR_RO(fan8_alarm, fan_alarm, 7), |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 368 | }; |
| 369 | |
Uwe Kleine-König | e44e199 | 2023-09-18 10:59:41 +0200 | [diff] [blame] | 370 | static void sch5636_remove(struct platform_device *pdev) |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 371 | { |
| 372 | struct sch5636_data *data = platform_get_drvdata(pdev); |
| 373 | int i; |
| 374 | |
| 375 | if (data->hwmon_dev) |
| 376 | hwmon_device_unregister(data->hwmon_dev); |
| 377 | |
| 378 | for (i = 0; i < ARRAY_SIZE(sch5636_attr); i++) |
| 379 | device_remove_file(&pdev->dev, &sch5636_attr[i].dev_attr); |
| 380 | |
| 381 | for (i = 0; i < SCH5636_NO_TEMPS * 3; i++) |
| 382 | device_remove_file(&pdev->dev, |
| 383 | &sch5636_temp_attr[i].dev_attr); |
| 384 | |
| 385 | for (i = 0; i < SCH5636_NO_FANS * 3; i++) |
| 386 | device_remove_file(&pdev->dev, |
| 387 | &sch5636_fan_attr[i].dev_attr); |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 388 | } |
| 389 | |
Bill Pemberton | 6c931ae | 2012-11-19 13:22:35 -0500 | [diff] [blame] | 390 | static int sch5636_probe(struct platform_device *pdev) |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 391 | { |
| 392 | struct sch5636_data *data; |
| 393 | int i, err, val, revision[2]; |
| 394 | char id[4]; |
| 395 | |
Guenter Roeck | 9220f1e | 2012-06-02 11:20:21 -0700 | [diff] [blame] | 396 | data = devm_kzalloc(&pdev->dev, sizeof(struct sch5636_data), |
| 397 | GFP_KERNEL); |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 398 | if (!data) |
| 399 | return -ENOMEM; |
| 400 | |
| 401 | data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start; |
| 402 | mutex_init(&data->update_lock); |
| 403 | platform_set_drvdata(pdev, data); |
| 404 | |
| 405 | for (i = 0; i < 3; i++) { |
| 406 | val = sch56xx_read_virtual_reg(data->addr, |
| 407 | SCH5636_REG_FUJITSU_ID + i); |
| 408 | if (val < 0) { |
| 409 | pr_err("Could not read Fujitsu id byte at %#x\n", |
| 410 | SCH5636_REG_FUJITSU_ID + i); |
| 411 | err = val; |
| 412 | goto error; |
| 413 | } |
| 414 | id[i] = val; |
| 415 | } |
| 416 | id[i] = '\0'; |
| 417 | |
| 418 | if (strcmp(id, "THS")) { |
| 419 | pr_err("Unknown Fujitsu id: %02x%02x%02x\n", |
| 420 | id[0], id[1], id[2]); |
| 421 | err = -ENODEV; |
| 422 | goto error; |
| 423 | } |
| 424 | |
| 425 | for (i = 0; i < 2; i++) { |
| 426 | val = sch56xx_read_virtual_reg(data->addr, |
| 427 | SCH5636_REG_FUJITSU_REV + i); |
| 428 | if (val < 0) { |
| 429 | err = val; |
| 430 | goto error; |
| 431 | } |
| 432 | revision[i] = val; |
| 433 | } |
Colin Ian King | d6a442d | 2016-04-24 22:55:47 +0100 | [diff] [blame] | 434 | pr_info("Found %s chip at %#hx, revision: %d.%02d\n", DEVNAME, |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 435 | data->addr, revision[0], revision[1]); |
| 436 | |
| 437 | /* Read all temp + fan ctrl registers to determine which are active */ |
| 438 | for (i = 0; i < SCH5636_NO_TEMPS; i++) { |
| 439 | val = sch56xx_read_virtual_reg(data->addr, |
| 440 | SCH5636_REG_TEMP_CTRL(i)); |
| 441 | if (unlikely(val < 0)) { |
| 442 | err = val; |
| 443 | goto error; |
| 444 | } |
| 445 | data->temp_ctrl[i] = val; |
| 446 | } |
| 447 | |
| 448 | for (i = 0; i < SCH5636_NO_FANS; i++) { |
| 449 | val = sch56xx_read_virtual_reg(data->addr, |
| 450 | SCH5636_REG_FAN_CTRL(i)); |
| 451 | if (unlikely(val < 0)) { |
| 452 | err = val; |
| 453 | goto error; |
| 454 | } |
| 455 | data->fan_ctrl[i] = val; |
| 456 | } |
| 457 | |
| 458 | for (i = 0; i < ARRAY_SIZE(sch5636_attr); i++) { |
| 459 | err = device_create_file(&pdev->dev, |
| 460 | &sch5636_attr[i].dev_attr); |
| 461 | if (err) |
| 462 | goto error; |
| 463 | } |
| 464 | |
| 465 | for (i = 0; i < (SCH5636_NO_TEMPS * 3); i++) { |
| 466 | if (data->temp_ctrl[i/3] & SCH5636_TEMP_DEACTIVATED) |
| 467 | continue; |
| 468 | |
| 469 | err = device_create_file(&pdev->dev, |
| 470 | &sch5636_temp_attr[i].dev_attr); |
| 471 | if (err) |
| 472 | goto error; |
| 473 | } |
| 474 | |
| 475 | for (i = 0; i < (SCH5636_NO_FANS * 3); i++) { |
| 476 | if (data->fan_ctrl[i/3] & SCH5636_FAN_DEACTIVATED) |
| 477 | continue; |
| 478 | |
| 479 | err = device_create_file(&pdev->dev, |
| 480 | &sch5636_fan_attr[i].dev_attr); |
| 481 | if (err) |
| 482 | goto error; |
| 483 | } |
| 484 | |
| 485 | data->hwmon_dev = hwmon_device_register(&pdev->dev); |
| 486 | if (IS_ERR(data->hwmon_dev)) { |
| 487 | err = PTR_ERR(data->hwmon_dev); |
| 488 | data->hwmon_dev = NULL; |
| 489 | goto error; |
| 490 | } |
| 491 | |
Hans de Goede | 312869e | 2012-03-18 13:05:08 +0100 | [diff] [blame] | 492 | /* Note failing to register the watchdog is not a fatal error */ |
Armin Wolf | 2be5f0d | 2021-05-08 15:14:54 +0200 | [diff] [blame] | 493 | sch56xx_watchdog_register(&pdev->dev, data->addr, (revision[0] << 8) | revision[1], |
| 494 | &data->update_lock, 0); |
Hans de Goede | 312869e | 2012-03-18 13:05:08 +0100 | [diff] [blame] | 495 | |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 496 | return 0; |
| 497 | |
| 498 | error: |
| 499 | sch5636_remove(pdev); |
| 500 | return err; |
| 501 | } |
| 502 | |
Armin Wolf | 4db3c09 | 2022-01-31 22:19:32 +0100 | [diff] [blame] | 503 | static const struct platform_device_id sch5636_device_id[] = { |
| 504 | { |
| 505 | .name = "sch5636", |
| 506 | }, |
| 507 | { } |
| 508 | }; |
| 509 | MODULE_DEVICE_TABLE(platform, sch5636_device_id); |
| 510 | |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 511 | static struct platform_driver sch5636_driver = { |
| 512 | .driver = { |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 513 | .name = DRVNAME, |
| 514 | }, |
| 515 | .probe = sch5636_probe, |
Uwe Kleine-König | e44e199 | 2023-09-18 10:59:41 +0200 | [diff] [blame] | 516 | .remove_new = sch5636_remove, |
Armin Wolf | 4db3c09 | 2022-01-31 22:19:32 +0100 | [diff] [blame] | 517 | .id_table = sch5636_device_id, |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 518 | }; |
| 519 | |
Axel Lin | 25a236a | 2011-11-25 02:31:00 -0500 | [diff] [blame] | 520 | module_platform_driver(sch5636_driver); |
Hans de Goede | 0772a64 | 2011-07-25 21:46:09 +0200 | [diff] [blame] | 521 | |
| 522 | MODULE_DESCRIPTION("SMSC SCH5636 Hardware Monitoring Driver"); |
| 523 | MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>"); |
| 524 | MODULE_LICENSE("GPL"); |