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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-25 08:41:18 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-25 08:41:18 -0700
commit5a559057b4fa0f60b2772fb590bf13e90af7a57d (patch)
tree193391b65af88f56ffc440a37cac29f363e79a8c /drivers/hwmon/k8temp.c
parent5e686019df425a4fd8003ce7f6eaccbe537331d8 (diff)
parent968591298514167d05b0379377757ddefc76f022 (diff)
Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: MAINTAINERS: hwmon/coretemp: Change maintainers hwmon: (k8temp) Differentiate between AM2 and ASB1 hwmon: (ads7871) Fix ads7871_probe error paths hwmon: (coretemp) Fix harmless build warning
Diffstat (limited to 'drivers/hwmon/k8temp.c')
-rw-r--r--drivers/hwmon/k8temp.c35
1 files changed, 32 insertions, 3 deletions
diff --git a/drivers/hwmon/k8temp.c b/drivers/hwmon/k8temp.c
index b9bb3e0ca530..39ead2a4d3c5 100644
--- a/drivers/hwmon/k8temp.c
+++ b/drivers/hwmon/k8temp.c
@@ -143,6 +143,37 @@ static const struct pci_device_id k8temp_ids[] = {
MODULE_DEVICE_TABLE(pci, k8temp_ids);
+static int __devinit is_rev_g_desktop(u8 model)
+{
+ u32 brandidx;
+
+ if (model < 0x69)
+ return 0;
+
+ if (model == 0xc1 || model == 0x6c || model == 0x7c)
+ return 0;
+
+ /*
+ * Differentiate between AM2 and ASB1.
+ * See "Constructing the processor Name String" in "Revision
+ * Guide for AMD NPT Family 0Fh Processors" (33610).
+ */
+ brandidx = cpuid_ebx(0x80000001);
+ brandidx = (brandidx >> 9) & 0x1f;
+
+ /* Single core */
+ if ((model == 0x6f || model == 0x7f) &&
+ (brandidx == 0x7 || brandidx == 0x9 || brandidx == 0xc))
+ return 0;
+
+ /* Dual core */
+ if (model == 0x6b &&
+ (brandidx == 0xb || brandidx == 0xc))
+ return 0;
+
+ return 1;
+}
+
static int __devinit k8temp_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
@@ -179,9 +210,7 @@ static int __devinit k8temp_probe(struct pci_dev *pdev,
"wrong - check erratum #141\n");
}
- if ((model >= 0x69) &&
- !(model == 0xc1 || model == 0x6c || model == 0x7c ||
- model == 0x6b || model == 0x6f || model == 0x7f)) {
+ if (is_rev_g_desktop(model)) {
/*
* RevG desktop CPUs (i.e. no socket S1G1 or
* ASB1 parts) need additional offset,

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