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authorZhang Rui <rui.zhang@intel.com>2008-01-17 15:51:19 +0800
committerLen Brown <len.brown@intel.com>2008-02-01 23:20:26 -0500
commit041d4bbf128f645fe53bb22309efb9db14dbf5b5 (patch)
tree2599aff53ec6e492c202f6db88deee7ea988575c /include
parent207339398ecb0835331c748612898dad2a09fdec (diff)
downloadop-kernel-dev-041d4bbf128f645fe53bb22309efb9db14dbf5b5.zip
op-kernel-dev-041d4bbf128f645fe53bb22309efb9db14dbf5b5.tar.gz
ACPI: CELSIUS_TO_KELVIN fixup
Fix an imprecision in CELSIUS_TO_KELVIN and move these two macroes to a proper place. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Thomas Sujith <sujith.thomas@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/thermal.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index e4b76c7..bba7712 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -61,6 +61,10 @@ struct thermal_cooling_device {
struct list_head node;
};
+#define KELVIN_TO_CELSIUS(t) (long)(((long)t-2732 >= 0) ? \
+ ((long)t-2732+5)/10 : ((long)t-2732-5)/10)
+#define CELSIUS_TO_KELVIN(t) ((t)*10+2732)
+
struct thermal_zone_device {
int id;
char type[THERMAL_NAME_LENGTH];
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