From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Tue, 15 Jan 2013 22:57:16 +0000 (+0100)
Subject: ACPI / thermal: Use mode to enable/disable kernel thermal processing
X-Git-Tag: v3.9-rc1~146^2~6^2~2
X-Git-Url: http://git.cascardo.eti.br/?a=commitdiff_plain;h=ca4e713080dd7f23cd1cf5d3871e0b717ee9b254;p=cascardo%2Flinux.git

ACPI / thermal: Use mode to enable/disable kernel thermal processing

As per documentation, "mode" sysfs interface should be able to
enable/disable thermal processing in the kernel, so that user space
is able to take more control.

Currently, ACPI thermal driver is not following this setting, so
modify it to match the interface documentation.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index f46c44048e44..dc047336cc37 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -531,6 +531,10 @@ static void acpi_thermal_check(void *data)
 {
 	struct acpi_thermal *tz = data;
 
+	if (!tz->tz_enabled) {
+		pr_warn("thermal zone is disabled \n");
+		return;
+	}
 	thermal_zone_device_update(tz->thermal_zone);
 }