[PATCH 2/2] ACPI: show temperature in millidegree Celsius

[Zhang, Rui]

Show the temperature in Millidegree Celsius.

Signed-off-by: Zhang Rui <[EMAIL PROTECTED]>
---
 drivers/acpi/thermal.c |   14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

Index: linux-2.6.25-rc2/drivers/acpi/thermal.c
===================================================================
--- linux-2.6.25-rc2.orig/drivers/acpi/thermal.c        2008-02-25 
22:43:29.000000000 -0500
+++ linux-2.6.25-rc2/drivers/acpi/thermal.c     2008-02-26 01:11:08.000000000 
-0500
@@ -879,6 +879,8 @@
 }
 
 /* sys I/F for generic thermal sysfs support */
+#define KELVIN_TO_MILLICELSIUS(t) (KELVIN_TO_CELSIUS(t) * 1000)
+
 static int thermal_get_temp(struct thermal_zone_device *thermal, char *buf)
 {
        struct acpi_thermal *tz = thermal->devdata;
@@ -886,7 +888,7 @@
        if (!tz)
                return -EINVAL;
 
-       return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS(tz->temperature));
+       return sprintf(buf, "%ld\n", KELVIN_TO_MILLICELSIUS(tz->temperature));
 }
 
 static const char enabled[] = "kernel";
@@ -980,21 +982,21 @@
 
        if (tz->trips.critical.flags.valid) {
                if (!trip)
-                       return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS(
+                       return sprintf(buf, "%ld\n", KELVIN_TO_MILLICELSIUS(
                                tz->trips.critical.temperature));
                trip--;
        }
 
        if (tz->trips.hot.flags.valid) {
                if (!trip)
-                       return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS(
+                       return sprintf(buf, "%ld\n", KELVIN_TO_MILLICELSIUS(
                                        tz->trips.hot.temperature));
                trip--;
        }
 
        if (tz->trips.passive.flags.valid) {
                if (!trip)
-                       return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS(
+                       return sprintf(buf, "%ld\n", KELVIN_TO_MILLICELSIUS(
                                        tz->trips.passive.temperature));
                trip--;
        }
@@ -1002,7 +1004,7 @@
        for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE &&
                tz->trips.active[i].flags.valid; i++) {
                if (!trip)
-                       return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS(
+                       return sprintf(buf, "%ld\n", KELVIN_TO_MILLICELSIUS(
                                        tz->trips.active[i].temperature));
                trip--;
        }
@@ -1121,7 +1123,7 @@
 
        for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE &&
                        tz->trips.active[i].flags.valid; i++, trips++);
-       tz->thermal_zone = thermal_zone_device_register("ACPI thermal zone",
+       tz->thermal_zone = thermal_zone_device_register("ACPI",
                                        trips, tz, &acpi_thermal_zone_ops);
        if (!tz->thermal_zone)
                return -ENODEV;


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