diff options
Diffstat (limited to 'drivers/hwmon/coretemp.c')
| -rw-r--r-- | drivers/hwmon/coretemp.c | 37 |
1 files changed, 15 insertions, 22 deletions
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c index 47b8d84b489d..1653d0ddd1d0 100644 --- a/drivers/hwmon/coretemp.c +++ b/drivers/hwmon/coretemp.c @@ -34,7 +34,6 @@ #include <linux/list.h> #include <linux/platform_device.h> #include <linux/cpu.h> -#include <linux/pci.h> #include <linux/smp.h> #include <linux/moduleparam.h> #include <asm/msr.h> @@ -222,7 +221,6 @@ static int __cpuinit adjust_tjmax(struct cpuinfo_x86 *c, u32 id, int usemsr_ee = 1; int err; u32 eax, edx; - struct pci_dev *host_bridge; int i; /* explicit tjmax table entries override heuristics */ @@ -231,31 +229,26 @@ static int __cpuinit adjust_tjmax(struct cpuinfo_x86 *c, u32 id, return tjmax_table[i].tjmax; } - /* Early chips have no MSR for TjMax */ - - if (c->x86_model == 0xf && c->x86_mask < 4) - usemsr_ee = 0; - /* Atom CPUs */ - if (c->x86_model == 0x1c || c->x86_model == 0x26 - || c->x86_model == 0x27) { - usemsr_ee = 0; - - host_bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0)); + if (c->x86_model == 0x1c) { + /* + * TjMax for stepping 10 CPUs (N4xx, N5xx, D4xx, D5xx) + * is 100 degrees C, for all others it is 90 degrees C. + */ + if (c->x86_mask == 10) + return 100000; + return 90000; + } else if (c->x86_model == 0x26 || c->x86_model == 0x27) { + return 90000; + } else if (c->x86_model == 0x36) { + return 100000; + } - if (host_bridge && host_bridge->vendor == PCI_VENDOR_ID_INTEL - && (host_bridge->device == 0xa000 /* NM10 based nettop */ - || host_bridge->device == 0xa010)) /* NM10 based netbook */ - tjmax = 100000; - else - tjmax = 90000; + /* Early chips have no MSR for TjMax */ - pci_dev_put(host_bridge); - } else if (c->x86_model == 0x36) { + if (c->x86_model == 0xf && c->x86_mask < 4) usemsr_ee = 0; - tjmax = 100000; - } if (c->x86_model > 0xe && usemsr_ee) { u8 platform_id; |