The patch titled
ACPI: fix fan/thermal resume
has been added to the -mm tree. Its filename is
acpi-fix-fan-thermal-resume.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: ACPI: fix fan/thermal resume
From: Konstantin Karasyov <konstantin.a.karasyov@xxxxxxxxx>
Daniel Ritz <daniel.ritz-ml@xxxxxxxxxxxxxx> says:
The acpi driver suspend/resume patches that went in recently caused a regression
on my box (toshiba tecra 8000 laptop): after resume from swsusp the fan turns on
keeping blowing cold air out of my notebook. before the patches, the fan was off
and would only make noise when required. it's the same thing described in
bugzilla.kernel.org #5000. the acpi suspend/resume patches or at least parts of
them originate in this bug. now the last patch in the report (attach id 8438)
actually fixes the problem - for me and the reporter. this is a trimmed down
version of that patch.
Signed-off-by: Daniel Ritz <daniel.ritz@xxxxxx>
Cc: Len Brown <len.brown@xxxxxxxxx>
Cc: Sanjoy Mahajan <sanjoy@xxxxxxxxxxxxxx>
Cc: Pavel Machek <pavel@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/acpi/thermal.c | 17 ++++++++++++++++-
1 files changed, 16 insertions(+), 1 deletion(-)
diff -puN drivers/acpi/thermal.c~acpi-fix-fan-thermal-resume drivers/acpi/thermal.c
--- a/drivers/acpi/thermal.c~acpi-fix-fan-thermal-resume
+++ a/drivers/acpi/thermal.c
@@ -1359,13 +1359,28 @@ static int acpi_thermal_remove(struct ac
static int acpi_thermal_resume(struct acpi_device *device, int state)
{
struct acpi_thermal *tz = NULL;
+ int i;
if (!device || !acpi_driver_data(device))
return -EINVAL;
tz = (struct acpi_thermal *)acpi_driver_data(device);
- acpi_thermal_check(tz);
+ acpi_thermal_get_temperature(tz);
+
+ for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) {
+ if (tz->trips.active[i].flags.valid) {
+ tz->temperature = tz->trips.active[i].temperature;
+ tz->trips.active[i].flags.enabled = 0;
+
+ acpi_thermal_active(tz);
+
+ tz->state.active |= tz->trips.active[i].flags.enabled;
+ tz->state.active_index = i;
+ }
+ }
+
+ acpi_thermal_check(tz);
return AE_OK;
}
_
Patches currently in -mm which might be from konstantin.a.karasyov@xxxxxxxxx are
origin.patch
acpi-fix-fan-thermal-resume.patch
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