Merge branches 'release', 'button-sysfs', 'misc', 'mismatch', 'randconfig' and 'toshi...

[linux-2.6] / drivers / acpi / thermal.c

diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 740036355722520d08526e2428751852d15c3c0f..c4e00ac8ea855ac980b05b5e6bf60b8e52b5016b 100644 (file)
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -65,9 +65,6 @@
 #define ACPI_THERMAL_MAX_ACTIVE        10
 #define ACPI_THERMAL_MAX_LIMIT_STR_LEN 65
 
-#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+273)*10)
-
 #define _COMPONENT             ACPI_THERMAL_COMPONENT
 ACPI_MODULE_NAME("thermal");
 
@@ -542,7 +539,7 @@ static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
 
 static int acpi_thermal_critical(struct acpi_thermal *tz)
 {
-       if (!tz || !tz->trips.critical.flags.valid || nocrt)
+       if (!tz || !tz->trips.critical.flags.valid)
                return -EINVAL;
 
        if (tz->temperature >= tz->trips.critical.temperature) {
@@ -551,9 +548,6 @@ static int acpi_thermal_critical(struct acpi_thermal *tz)
        } else if (tz->trips.critical.flags.enabled)
                tz->trips.critical.flags.enabled = 0;
 
-       printk(KERN_EMERG
-              "Critical temperature reached (%ld C), shutting down.\n",
-              KELVIN_TO_CELSIUS(tz->temperature));
        acpi_bus_generate_proc_event(tz->device, ACPI_THERMAL_NOTIFY_CRITICAL,
                                tz->trips.critical.flags.enabled);
        acpi_bus_generate_netlink_event(tz->device->pnp.device_class,
@@ -561,14 +555,20 @@ static int acpi_thermal_critical(struct acpi_thermal *tz)
                                          ACPI_THERMAL_NOTIFY_CRITICAL,
                                          tz->trips.critical.flags.enabled);
 
-       orderly_poweroff(true);
+       /* take no action if nocrt is set */
+       if(!nocrt) {
+               printk(KERN_EMERG
+                       "Critical temperature reached (%ld C), shutting down.\n",
+                       KELVIN_TO_CELSIUS(tz->temperature));
+               orderly_poweroff(true);
+       }
 
        return 0;
 }
 
 static int acpi_thermal_hot(struct acpi_thermal *tz)
 {
-       if (!tz || !tz->trips.hot.flags.valid || nocrt)
+       if (!tz || !tz->trips.hot.flags.valid)
                return -EINVAL;
 
        if (tz->temperature >= tz->trips.hot.temperature) {
@@ -584,7 +584,7 @@ static int acpi_thermal_hot(struct acpi_thermal *tz)
                                          ACPI_THERMAL_NOTIFY_HOT,
                                          tz->trips.hot.flags.enabled);
 
-       /* TBD: Call user-mode "sleep(S4)" function */
+       /* TBD: Call user-mode "sleep(S4)" function if nocrt is cleared */
 
        return 0;
 }
@@ -879,6 +879,8 @@ static void acpi_thermal_check(void *data)
 }
 
 /* sys I/F for generic thermal sysfs support */
+#define KELVIN_TO_MILLICELSIUS(t) (t * 100 - 273200)
+
 static int thermal_get_temp(struct thermal_zone_device *thermal, char *buf)
 {
        struct acpi_thermal *tz = thermal->devdata;
@@ -886,7 +888,7 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, char *buf)
        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 @@ static int thermal_get_trip_temp(struct thermal_zone_device *thermal,
 
        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 @@ static int thermal_get_trip_temp(struct thermal_zone_device *thermal,
        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--;
        }
@@ -1018,7 +1020,9 @@ static int acpi_thermal_cooling_device_cb(struct thermal_zone_device *thermal,
 {
        struct acpi_device *device = cdev->devdata;
        struct acpi_thermal *tz = thermal->devdata;
-       acpi_handle handle = device->handle;
+       struct acpi_device *dev;
+       acpi_status status;
+       acpi_handle handle;
        int i;
        int j;
        int trip = -1;
@@ -1034,12 +1038,13 @@ static int acpi_thermal_cooling_device_cb(struct thermal_zone_device *thermal,
                trip++;
                for (i = 0; i < tz->trips.passive.devices.count;
                    i++) {
-                       if (tz->trips.passive.devices.handles[i] !=
-                               handle)
-                               continue;
-                       result = action(thermal, trip, cdev);
-                       if (result)
-                               goto failed;
+                       handle = tz->trips.passive.devices.handles[i];
+                       status = acpi_bus_get_device(handle, &dev);
+                       if (ACPI_SUCCESS(status) && (dev == device)) {
+                               result = action(thermal, trip, cdev);
+                               if (result)
+                                       goto failed;
+                       }
                }
        }
 
@@ -1050,21 +1055,24 @@ static int acpi_thermal_cooling_device_cb(struct thermal_zone_device *thermal,
                for (j = 0;
                    j < tz->trips.active[i].devices.count;
                    j++) {
-                       if (tz->trips.active[i].devices.
-                                               handles[j] != handle)
-                               continue;
-                       result = action(thermal, trip, cdev);
-                       if (result)
-                               goto failed;
+                       handle = tz->trips.active[i].devices.handles[j];
+                       status = acpi_bus_get_device(handle, &dev);
+                       if (ACPI_SUCCESS(status) && (dev == device)) {
+                               result = action(thermal, trip, cdev);
+                               if (result)
+                                       goto failed;
+                       }
                }
        }
 
        for (i = 0; i < tz->devices.count; i++) {
-               if (tz->devices.handles[i] != handle)
-                       continue;
-               result = action(thermal, -1, cdev);
-               if (result)
-                       goto failed;
+               handle = tz->devices.handles[i];
+               status = acpi_bus_get_device(handle, &dev);
+               if (ACPI_SUCCESS(status) && (dev == device)) {
+                       result = action(thermal, -1, cdev);
+                       if (result)
+                               goto failed;
+               }
        }
 
 failed: