diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/it87.c | 81 |
1 files changed, 33 insertions, 48 deletions
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c index 0c13d640bcc7..e4fb466fd9c3 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c @@ -471,6 +471,7 @@ struct it87_data { unsigned long last_updated; /* In jiffies */ u16 in_scaled; /* Internal voltage sensors are scaled */ + u16 in_internal; /* Bitfield, internal sensors (for labels) */ u16 has_in; /* Bitfield, voltage sensors enabled */ u8 in[10][3]; /* [nr][0]=in, [1]=min, [2]=max */ u8 has_fan; /* Bitfield, fans enabled */ @@ -480,6 +481,7 @@ struct it87_data { u8 sensor; /* Register value (IT87_REG_TEMP_ENABLE) */ u8 extra; /* Register value (IT87_REG_TEMP_EXTRA) */ u8 fan_div[3]; /* Register encoding, shifted right */ + bool has_vid; /* True if VID supported */ u8 vid; /* Register encoding, combined */ u8 vrm; u32 alarms; /* Register encoding, combined */ @@ -1879,15 +1881,37 @@ static const struct attribute_group it87_group_temp = { .is_visible = it87_temp_is_visible, }; +static umode_t it87_is_visible(struct kobject *kobj, + struct attribute *attr, int index) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct it87_data *data = dev_get_drvdata(dev); + + if ((index == 3 || index == 4) && !data->has_vid) + return 0; + + if (index > 4 && !(data->in_internal & (1 << (index - 5)))) + return 0; + + return attr->mode; +} + static struct attribute *it87_attributes[] = { &dev_attr_alarms.attr, &sensor_dev_attr_intrusion0_alarm.dev_attr.attr, &dev_attr_name.attr, + &dev_attr_vrm.attr, /* 3 */ + &dev_attr_cpu0_vid.attr, /* 4 */ + &sensor_dev_attr_in3_label.dev_attr.attr, /* 5 .. 8 */ + &sensor_dev_attr_in7_label.dev_attr.attr, + &sensor_dev_attr_in8_label.dev_attr.attr, + &sensor_dev_attr_in9_label.dev_attr.attr, NULL }; static const struct attribute_group it87_group = { .attrs = it87_attributes, + .is_visible = it87_is_visible, }; static umode_t it87_fan_is_visible(struct kobject *kobj, @@ -2074,28 +2098,6 @@ static const struct attribute_group it87_group_auto_pwm = { .is_visible = it87_auto_pwm_is_visible, }; -static struct attribute *it87_attributes_vid[] = { - &dev_attr_vrm.attr, - &dev_attr_cpu0_vid.attr, - NULL -}; - -static const struct attribute_group it87_group_vid = { - .attrs = it87_attributes_vid, -}; - -static struct attribute *it87_attributes_label[] = { - &sensor_dev_attr_in3_label.dev_attr.attr, - &sensor_dev_attr_in7_label.dev_attr.attr, - &sensor_dev_attr_in8_label.dev_attr.attr, - &sensor_dev_attr_in9_label.dev_attr.attr, - NULL -}; - -static const struct attribute_group it87_group_label = { - .attrs = it87_attributes_label, -}; - /* SuperIO detection - will change isa_address if a chip is found */ static int __init it87_find(int sioaddr, unsigned short *address, struct it87_sio_data *sio_data) @@ -2460,18 +2462,12 @@ exit: static void it87_remove_files(struct device *dev) { - struct it87_sio_data *sio_data = dev_get_platdata(dev); - sysfs_remove_group(&dev->kobj, &it87_group); sysfs_remove_group(&dev->kobj, &it87_group_in); sysfs_remove_group(&dev->kobj, &it87_group_temp); sysfs_remove_group(&dev->kobj, &it87_group_fan); sysfs_remove_group(&dev->kobj, &it87_group_pwm); sysfs_remove_group(&dev->kobj, &it87_group_auto_pwm); - - if (!sio_data->skip_vid) - sysfs_remove_group(&dev->kobj, &it87_group_vid); - sysfs_remove_group(&dev->kobj, &it87_group_label); } /* Called when we have found a new IT87. */ @@ -2649,8 +2645,8 @@ static int it87_probe(struct platform_device *pdev) struct resource *res; struct device *dev = &pdev->dev; struct it87_sio_data *sio_data = dev_get_platdata(dev); - int err = 0, i; int enable_pwm_interface; + int err = 0; res = platform_get_resource(pdev, IORESOURCE_IO, 0); if (!devm_request_region(&pdev->dev, res->start, IT87_EC_EXTENT, @@ -2731,6 +2727,7 @@ static int it87_probe(struct platform_device *pdev) data->has_temp &= ~(1 << 2); } + data->in_internal = sio_data->internal; data->has_in = 0x3ff & ~sio_data->skip_in; data->has_beep = !!sio_data->beep_pin; @@ -2738,6 +2735,13 @@ static int it87_probe(struct platform_device *pdev) /* Initialize the IT87 chip */ it87_init_device(pdev); + if (!sio_data->skip_vid) { + data->has_vid = true; + data->vrm = vid_which_vrm(); + /* VID reading from Super-I/O config space if available */ + data->vid = sio_data->vid_value; + } + /* Register sysfs hooks */ err = sysfs_create_group(&dev->kobj, &it87_group); if (err) @@ -2770,25 +2774,6 @@ static int it87_probe(struct platform_device *pdev) } } - if (!sio_data->skip_vid) { - data->vrm = vid_which_vrm(); - /* VID reading from Super-I/O config space if available */ - data->vid = sio_data->vid_value; - err = sysfs_create_group(&dev->kobj, &it87_group_vid); - if (err) - goto error; - } - - /* Export labels for internal sensors */ - for (i = 0; i < 4; i++) { - if (!(sio_data->internal & (1 << i))) - continue; - err = sysfs_create_file(&dev->kobj, - it87_attributes_label[i]); - if (err) - goto error; - } - data->hwmon_dev = hwmon_device_register(dev); if (IS_ERR(data->hwmon_dev)) { err = PTR_ERR(data->hwmon_dev); |