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authorGuenter Roeck <linux@roeck-us.net>2015-07-27 13:21:46 -0400
committerGuenter Roeck <linux@roeck-us.net>2015-07-29 23:06:46 -0400
commit0d6aaffc3a6db642e0a165ba4d17d6d7bbaf5201 (patch)
tree9e2e6ca11e0201f4c8cf8fc19dd61e60cb0e608e
parentcbfe8fa6cd672011c755c3cd85c9ffd4e2d10a6f (diff)
hwmon: (nct7904) Rename pwm attributes to match hwmon ABI
pwm attributes have well defined names, which should be used. Cc: Vadim V. Vlasov <vvlasov@dev.rtsoft.ru> Cc: stable@vger.kernel.org #v4.1+ Signed-off-by: Guenter Roeck <linux@roeck-us.net>
-rw-r--r--Documentation/hwmon/nct79044
-rw-r--r--drivers/hwmon/nct7904.c57
2 files changed, 31 insertions, 30 deletions
diff --git a/Documentation/hwmon/nct7904 b/Documentation/hwmon/nct7904
index 014f112e2a14..57fffe33ebfc 100644
--- a/Documentation/hwmon/nct7904
+++ b/Documentation/hwmon/nct7904
@@ -35,11 +35,11 @@ temp1_input Local temperature (1/1000 degree,
35temp[2-9]_input CPU temperatures (1/1000 degree, 35temp[2-9]_input CPU temperatures (1/1000 degree,
36 0.125 degree resolution) 36 0.125 degree resolution)
37 37
38fan[1-4]_mode R/W, 0/1 for manual or SmartFan mode 38pwm[1-4]_enable R/W, 1/2 for manual or SmartFan mode
39 Setting SmartFan mode is supported only if it has been 39 Setting SmartFan mode is supported only if it has been
40 previously configured by BIOS (or configuration EEPROM) 40 previously configured by BIOS (or configuration EEPROM)
41 41
42fan[1-4]_pwm R/O in SmartFan mode, R/W in manual control mode 42pwm[1-4] R/O in SmartFan mode, R/W in manual control mode
43 43
44The driver checks sensor control registers and does not export the sensors 44The driver checks sensor control registers and does not export the sensors
45that are not enabled. Anyway, a sensor that is enabled may actually be not 45that are not enabled. Anyway, a sensor that is enabled may actually be not
diff --git a/drivers/hwmon/nct7904.c b/drivers/hwmon/nct7904.c
index b77b82f24480..6153df735e82 100644
--- a/drivers/hwmon/nct7904.c
+++ b/drivers/hwmon/nct7904.c
@@ -412,8 +412,9 @@ static ssize_t show_pwm(struct device *dev,
412 return sprintf(buf, "%d\n", val); 412 return sprintf(buf, "%d\n", val);
413} 413}
414 414
415static ssize_t store_mode(struct device *dev, struct device_attribute *devattr, 415static ssize_t store_enable(struct device *dev,
416 const char *buf, size_t count) 416 struct device_attribute *devattr,
417 const char *buf, size_t count)
417{ 418{
418 int index = to_sensor_dev_attr(devattr)->index; 419 int index = to_sensor_dev_attr(devattr)->index;
419 struct nct7904_data *data = dev_get_drvdata(dev); 420 struct nct7904_data *data = dev_get_drvdata(dev);
@@ -422,18 +423,18 @@ static ssize_t store_mode(struct device *dev, struct device_attribute *devattr,
422 423
423 if (kstrtoul(buf, 10, &val) < 0) 424 if (kstrtoul(buf, 10, &val) < 0)
424 return -EINVAL; 425 return -EINVAL;
425 if (val > 1 || (val && !data->fan_mode[index])) 426 if (val < 1 || val > 2 || (val == 2 && !data->fan_mode[index]))
426 return -EINVAL; 427 return -EINVAL;
427 428
428 ret = nct7904_write_reg(data, BANK_3, FANCTL1_FMR_REG + index, 429 ret = nct7904_write_reg(data, BANK_3, FANCTL1_FMR_REG + index,
429 val ? data->fan_mode[index] : 0); 430 val == 2 ? data->fan_mode[index] : 0);
430 431
431 return ret ? ret : count; 432 return ret ? ret : count;
432} 433}
433 434
434/* Return 0 for manual mode or 1 for SmartFan mode */ 435/* Return 1 for manual mode or 2 for SmartFan mode */
435static ssize_t show_mode(struct device *dev, 436static ssize_t show_enable(struct device *dev,
436 struct device_attribute *devattr, char *buf) 437 struct device_attribute *devattr, char *buf)
437{ 438{
438 int index = to_sensor_dev_attr(devattr)->index; 439 int index = to_sensor_dev_attr(devattr)->index;
439 struct nct7904_data *data = dev_get_drvdata(dev); 440 struct nct7904_data *data = dev_get_drvdata(dev);
@@ -443,36 +444,36 @@ static ssize_t show_mode(struct device *dev,
443 if (val < 0) 444 if (val < 0)
444 return val; 445 return val;
445 446
446 return sprintf(buf, "%d\n", val ? 1 : 0); 447 return sprintf(buf, "%d\n", val ? 2 : 1);
447} 448}
448 449
449/* 2 attributes per channel: pwm and mode */ 450/* 2 attributes per channel: pwm and mode */
450static SENSOR_DEVICE_ATTR(fan1_pwm, S_IRUGO | S_IWUSR, 451static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR,
451 show_pwm, store_pwm, 0); 452 show_pwm, store_pwm, 0);
452static SENSOR_DEVICE_ATTR(fan1_mode, S_IRUGO | S_IWUSR, 453static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
453 show_mode, store_mode, 0); 454 show_enable, store_enable, 0);
454static SENSOR_DEVICE_ATTR(fan2_pwm, S_IRUGO | S_IWUSR, 455static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR,
455 show_pwm, store_pwm, 1); 456 show_pwm, store_pwm, 1);
456static SENSOR_DEVICE_ATTR(fan2_mode, S_IRUGO | S_IWUSR, 457static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR,
457 show_mode, store_mode, 1); 458 show_enable, store_enable, 1);
458static SENSOR_DEVICE_ATTR(fan3_pwm, S_IRUGO | S_IWUSR, 459static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR,
459 show_pwm, store_pwm, 2); 460 show_pwm, store_pwm, 2);
460static SENSOR_DEVICE_ATTR(fan3_mode, S_IRUGO | S_IWUSR, 461static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR,
461 show_mode, store_mode, 2); 462 show_enable, store_enable, 2);
462static SENSOR_DEVICE_ATTR(fan4_pwm, S_IRUGO | S_IWUSR, 463static SENSOR_DEVICE_ATTR(pwm4, S_IRUGO | S_IWUSR,
463 show_pwm, store_pwm, 3); 464 show_pwm, store_pwm, 3);
464static SENSOR_DEVICE_ATTR(fan4_mode, S_IRUGO | S_IWUSR, 465static SENSOR_DEVICE_ATTR(pwm4_enable, S_IRUGO | S_IWUSR,
465 show_mode, store_mode, 3); 466 show_enable, store_enable, 3);
466 467
467static struct attribute *nct7904_fanctl_attrs[] = { 468static struct attribute *nct7904_fanctl_attrs[] = {
468 &sensor_dev_attr_fan1_pwm.dev_attr.attr, 469 &sensor_dev_attr_pwm1.dev_attr.attr,
469 &sensor_dev_attr_fan1_mode.dev_attr.attr, 470 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
470 &sensor_dev_attr_fan2_pwm.dev_attr.attr, 471 &sensor_dev_attr_pwm2.dev_attr.attr,
471 &sensor_dev_attr_fan2_mode.dev_attr.attr, 472 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
472 &sensor_dev_attr_fan3_pwm.dev_attr.attr, 473 &sensor_dev_attr_pwm3.dev_attr.attr,
473 &sensor_dev_attr_fan3_mode.dev_attr.attr, 474 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
474 &sensor_dev_attr_fan4_pwm.dev_attr.attr, 475 &sensor_dev_attr_pwm4.dev_attr.attr,
475 &sensor_dev_attr_fan4_mode.dev_attr.attr, 476 &sensor_dev_attr_pwm4_enable.dev_attr.attr,
476 NULL 477 NULL
477}; 478};
478 479