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Thermal: move the KELVIN_TO_MILLICELSIUS macro to thermal.h

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This macro can be used by other component so move it to a common header,
but in a slightly different way: define two macros, one macro with an
offset and the other doesn't.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
This commit is contained in:
Aaron Lu 2014-03-25 10:40:09 +08:00 committed by Zhang Rui
parent d806c6e9cd
commit 7b83fd9d91
2 changed files with 11 additions and 9 deletions
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18
drivers/acpi/thermal.c
View File

@ -528,7 +528,6 @@ static void acpi_thermal_check(void *data)
} }
/* sys I/F for generic thermal sysfs support */ /* sys I/F for generic thermal sysfs support */
#define KELVIN_TO_MILLICELSIUS(t, off) (((t) - (off)) * 100)
static int thermal_get_temp(struct thermal_zone_device *thermal, static int thermal_get_temp(struct thermal_zone_device *thermal,
unsigned long *temp) unsigned long *temp)
@ -543,7 +542,8 @@ static int thermal_get_temp(struct thermal_zone_device *thermal,
if (result) if (result)
return result; return result;
*temp = KELVIN_TO_MILLICELSIUS(tz->temperature, tz->kelvin_offset); *temp = DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(tz->temperature,
tz->kelvin_offset);
return 0; return 0;
} }
@ -647,7 +647,7 @@ static int thermal_get_trip_temp(struct thermal_zone_device *thermal,
if (tz->trips.critical.flags.valid) { if (tz->trips.critical.flags.valid) {
if (!trip) { if (!trip) {
*temp = KELVIN_TO_MILLICELSIUS( *temp = DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(
tz->trips.critical.temperature, tz->trips.critical.temperature,
tz->kelvin_offset); tz->kelvin_offset);
return 0; return 0;
@ -657,7 +657,7 @@ static int thermal_get_trip_temp(struct thermal_zone_device *thermal,
if (tz->trips.hot.flags.valid) { if (tz->trips.hot.flags.valid) {
if (!trip) { if (!trip) {
*temp = KELVIN_TO_MILLICELSIUS( *temp = DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(
tz->trips.hot.temperature, tz->trips.hot.temperature,
tz->kelvin_offset); tz->kelvin_offset);
return 0; return 0;
@ -667,7 +667,7 @@ static int thermal_get_trip_temp(struct thermal_zone_device *thermal,
if (tz->trips.passive.flags.valid) { if (tz->trips.passive.flags.valid) {
if (!trip) { if (!trip) {
*temp = KELVIN_TO_MILLICELSIUS( *temp = DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(
tz->trips.passive.temperature, tz->trips.passive.temperature,
tz->kelvin_offset); tz->kelvin_offset);
return 0; return 0;
@ -678,7 +678,7 @@ static int thermal_get_trip_temp(struct thermal_zone_device *thermal,
for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE && for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE &&
tz->trips.active[i].flags.valid; i++) { tz->trips.active[i].flags.valid; i++) {
if (!trip) { if (!trip) {
*temp = KELVIN_TO_MILLICELSIUS( *temp = DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(
tz->trips.active[i].temperature, tz->trips.active[i].temperature,
tz->kelvin_offset); tz->kelvin_offset);
return 0; return 0;
@ -694,7 +694,7 @@ static int thermal_get_crit_temp(struct thermal_zone_device *thermal,
struct acpi_thermal *tz = thermal->devdata; struct acpi_thermal *tz = thermal->devdata;
if (tz->trips.critical.flags.valid) { if (tz->trips.critical.flags.valid) {
*temperature = KELVIN_TO_MILLICELSIUS( *temperature = DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(
tz->trips.critical.temperature, tz->trips.critical.temperature,
tz->kelvin_offset); tz->kelvin_offset);
return 0; return 0;
@ -714,8 +714,8 @@ static int thermal_get_trend(struct thermal_zone_device *thermal,
if (type == THERMAL_TRIP_ACTIVE) { if (type == THERMAL_TRIP_ACTIVE) {
unsigned long trip_temp; unsigned long trip_temp;
unsigned long temp = KELVIN_TO_MILLICELSIUS(tz->temperature, unsigned long temp = DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(
tz->kelvin_offset); tz->temperature, tz->kelvin_offset);
if (thermal_get_trip_temp(thermal, trip, &trip_temp)) if (thermal_get_trip_temp(thermal, trip, &trip_temp))
return -EINVAL; return -EINVAL;

2
include/linux/thermal.h
View File

@ -44,6 +44,8 @@
#define KELVIN_TO_CELSIUS(t) (long)(((long)t-2732 >= 0) ? \ #define KELVIN_TO_CELSIUS(t) (long)(((long)t-2732 >= 0) ? \
((long)t-2732+5)/10 : ((long)t-2732-5)/10) ((long)t-2732+5)/10 : ((long)t-2732-5)/10)
#define CELSIUS_TO_KELVIN(t) ((t)*10+2732) #define CELSIUS_TO_KELVIN(t) ((t)*10+2732)
#define DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(t, off) (((t) - (off)) * 100)
#define DECI_KELVIN_TO_MILLICELSIUS(t) DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(t, 2732)
/* Adding event notification support elements */ /* Adding event notification support elements */
#define THERMAL_GENL_FAMILY_NAME "thermal_event" #define THERMAL_GENL_FAMILY_NAME "thermal_event"