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hwmon: (fam15h_power) Update running_avg_capture bit field to 28

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On Carrizo and later platforms, running_avg_capture bit field is
extended to 4:31 (28 bits) from 4:25.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Huang Rui 2015-08-27 16:07:35 +08:00 committed by Guenter Roeck
parent d83e92b3af
commit e9cd4d55d1
1 changed files with 13 additions and 2 deletions
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15
drivers/hwmon/fam15h_power.c
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@ -59,8 +59,19 @@ static ssize_t show_power(struct device *dev,
pci_bus_read_config_dword(f4->bus, PCI_DEVFN(PCI_SLOT(f4->devfn), 5),
REG_TDP_RUNNING_AVERAGE, &val);
running_avg_capture = (val >> 4) & 0x3fffff;
running_avg_capture = sign_extend32(running_avg_capture, 21);
/*
* On Carrizo and later platforms, TdpRunAvgAccCap bit field
* is extended to 4:31 from 4:25.
*/
if (boot_cpu_data.x86 == 0x15 && boot_cpu_data.x86_model >= 0x60) {
running_avg_capture = val >> 4;
running_avg_capture = sign_extend32(running_avg_capture, 27);
} else {
running_avg_capture = (val >> 4) & 0x3fffff;
running_avg_capture = sign_extend32(running_avg_capture, 21);
}
running_avg_range = (val & 0xf) + 1;
pci_bus_read_config_dword(f4->bus, PCI_DEVFN(PCI_SLOT(f4->devfn), 5),