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hwmon fixes for v4.5-rc2 

- Use bit mask to calculate tdp limit in fam15h_power driver
 - Black-list Dell Studio XPS 8000 in dell-smm driver
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Merge tag 'hwmon-for-linus-v4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:
 - Use bit mask to calculate tdp limit in fam15h_power driver
 - Black-list Dell Studio XPS 8000 in dell-smm driver

* tag 'hwmon-for-linus-v4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (fam15h_power) Add bit masking for tdp_limit
  hwmon: (dell-smm) Blacklist Dell Studio XPS 8000
This commit is contained in:
Linus Torvalds 2016-01-29 13:20:39 -08:00
parent a12883f0af 60dee3ca27
commit f51d4d7826
2 changed files with 20 additions and 1 deletions
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11
drivers/hwmon/dell-smm-hwmon.c
View File

@ -930,6 +930,17 @@ static struct dmi_system_id i8k_dmi_table[] __initdata = {
MODULE_DEVICE_TABLE(dmi, i8k_dmi_table);
static struct dmi_system_id i8k_blacklist_dmi_table[] __initdata = {
{
/*
* CPU fan speed going up and down on Dell Studio XPS 8000
* for unknown reasons.
*/
.ident = "Dell Studio XPS 8000",
.matches = {
DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Studio XPS 8000"),
},
},
{
/*
* CPU fan speed going up and down on Dell Studio XPS 8100

10
drivers/hwmon/fam15h_power.c
View File

@ -90,7 +90,15 @@ static ssize_t show_power(struct device *dev,
pci_bus_read_config_dword(f4->bus, PCI_DEVFN(PCI_SLOT(f4->devfn), 5),
REG_TDP_LIMIT3, &val);
tdp_limit = val >> 16;
/*
* On Carrizo and later platforms, ApmTdpLimit bit field
* is extended to 16:31 from 16:28.
*/
if (boot_cpu_data.x86 == 0x15 && boot_cpu_data.x86_model >= 0x60)
tdp_limit = val >> 16;
else
tdp_limit = (val >> 16) & 0x1fff;
curr_pwr_watts = ((u64)(tdp_limit +
data->base_tdp)) << running_avg_range;
curr_pwr_watts -= running_avg_capture;