hwmon: (coretemp) Improve support of recent Atom CPU models

Document the new Atom series (Tunnel Creek and Medfield) as being
supported, and list TjMax for the Atom E600 series.

Also enable the Atom tjmax heuristic for these Atom CPU models.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Reviewed-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Alexander Stein <alexander.stein@systec-electronic.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: "R, Durgadoss" <durgadoss.r@intel.com>

diff --git a/Documentation/hwmon/coretemp b/Documentation/hwmon/coretemp
index 84d46c0..f6aed44 100644 (file)
--- a/Documentation/hwmon/coretemp
+++ b/Documentation/hwmon/coretemp
@@ -6,7 +6,8 @@ Supported chips:
     Prefix: 'coretemp'
     CPUID: family 0x6, models 0xe (Pentium M DC), 0xf (Core 2 DC 65nm),
                               0x16 (Core 2 SC 65nm), 0x17 (Penryn 45nm),
-                              0x1a (Nehalem), 0x1c (Atom), 0x1e (Lynnfield)
+                              0x1a (Nehalem), 0x1c (Atom), 0x1e (Lynnfield),
+                              0x26 (Tunnel Creek Atom), 0x27 (Medfield Atom)
     Datasheet: Intel 64 and IA-32 Architectures Software Developer's Manual
                Volume 3A: System Programming Guide
                http://softwarecommunity.intel.com/Wiki/Mobility/720.htm
@@ -65,6 +66,9 @@ Process               Processor                                       TjMax(C)
                U3400                                           105
                P4505/P4500                                     90
 
+32nm           Atom Processors
+               Z2460                                           90
+
 45nm           Xeon Processors 5400 Quad-Core
                X5492, X5482, X5472, X5470, X5460, X5450        85
                E5472, E5462, E5450/40/30/20/10/05              85
@@ -85,6 +89,8 @@ Process               Processor                                       TjMax(C)
                N475/470/455/450                                100
                N280/270                                        90
                330/230                                         125
+               E680/660/640/620                                90
+               E680T/660T/640T/620T                            110
 
 45nm           Core2 Processors
                Solo ULV SU3500/3300                            100

diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index b9d5123..495add5 100644 (file)
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -210,7 +210,8 @@ static int __cpuinit adjust_tjmax(struct cpuinfo_x86 *c, u32 id,
 
        /* Atom CPUs */
 
-       if (c->x86_model == 0x1c) {
+       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));