From e9cd4d55d16f880ddf436fbae8c0c82ce0a928d5 Mon Sep 17 00:00:00 2001 From: Huang Rui Date: Thu, 27 Aug 2015 16:07:35 +0800 Subject: [PATCH] hwmon: (fam15h_power) Update running_avg_capture bit field to 28 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 Signed-off-by: Guenter Roeck --- drivers/hwmon/fam15h_power.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c index 820adf19f4e2..41174903009c 100644 --- a/drivers/hwmon/fam15h_power.c +++ b/drivers/hwmon/fam15h_power.c @@ -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), -- 2.20.1