diff options
| author | Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com> | 2014-09-16 14:58:04 -0500 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2014-09-16 21:16:26 -0700 |
| commit | 961a23788c3448eec7906bd74c64c01c54fba80e (patch) | |
| tree | 082bdee6c1de3cfc7fccb22515ac6193aad82e10 /drivers/hwmon/fam15h_power.c | |
| parent | 9e82bf014195d6f0054982c463575cdce24292be (diff) | |
| download | lwn-961a23788c3448eec7906bd74c64c01c54fba80e.tar.gz lwn-961a23788c3448eec7906bd74c64c01c54fba80e.zip | |
hwmon: (fam15h_power) Make actual power reporting conditional
power1_input should only be reported for Fam15h, Models 00h-0fh
So, introduce a is_visible function to take care of this.
As suggested by Guenter here:
http://marc.info/?l=linux-kernel&m=141038145616437&w=2
Suggested-by: Guenter Roeck <linux@roeck-us.net>
Fixes: 22e32f4f5777 ('x86,AMD: Power driver support for AMD's family 16h processors')
Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/fam15h_power.c')
| -rw-r--r-- | drivers/hwmon/fam15h_power.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c index 4a7cbfad1d74..4ee0126e02d6 100644 --- a/drivers/hwmon/fam15h_power.c +++ b/drivers/hwmon/fam15h_power.c @@ -93,13 +93,29 @@ static ssize_t show_power_crit(struct device *dev, } static DEVICE_ATTR(power1_crit, S_IRUGO, show_power_crit, NULL); +static umode_t fam15h_power_is_visible(struct kobject *kobj, + struct attribute *attr, + int index) +{ + /* power1_input is only reported for Fam15h, Models 00h-0fh */ + if (attr == &dev_attr_power1_input.attr && + (boot_cpu_data.x86 != 0x15 || boot_cpu_data.x86_model > 0xf)) + return 0; + + return attr->mode; +} + static struct attribute *fam15h_power_attrs[] = { &dev_attr_power1_input.attr, &dev_attr_power1_crit.attr, NULL }; -ATTRIBUTE_GROUPS(fam15h_power); +static const struct attribute_group fam15h_power_group = { + .attrs = fam15h_power_attrs, + .is_visible = fam15h_power_is_visible, +}; +__ATTRIBUTE_GROUPS(fam15h_power); static bool fam15h_power_is_internal_node0(struct pci_dev *f4) { |