acerhdf: added critical trip point

added critical trip point which represents the temperature limit.
Added return -EINVAL in case wrong trip point is provided.

Cc: platform-driver-x86@vger.kernel.org
Cc: Darren Hart <dvhart@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andreas Mohr <andi@lisas.de>
Cc: Borislav Petkov <bp@suse.de>
Cc: Javi Merino <javi.merino@arm.com>
Signed-off-by: Peter Feuerer <peter@piie.net>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>

1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c
index 7fe7dbf2f4ef..91b16c8a45bd 100644
--- a/drivers/platform/x86/acerhdf.c
+++ b/drivers/platform/x86/acerhdf.c
@@ -443,6 +443,10 @@ static int acerhdf_get_trip_type(struct thermal_zone_device *thermal, int trip,
 {
         if (trip == 0)
                 *type = THERMAL_TRIP_ACTIVE;
+        else if (trip == 1)
+                *type = THERMAL_TRIP_CRITICAL;
+        else
+                return -EINVAL;
 
         return 0;
 }
@@ -463,6 +467,10 @@ static int acerhdf_get_trip_temp(struct thermal_zone_device *thermal, int trip,
 {
         if (trip == 0)
                 *temp = fanon;
+        else if (trip == 1)
+                *temp = ACERHDF_TEMP_CRIT;
+        else
+                return -EINVAL;
 
         return 0;
 }
@@ -713,7 +721,7 @@ static int acerhdf_register_thermal(void)
         if (IS_ERR(cl_dev))
                 return -EINVAL;
 
-        thz_dev = thermal_zone_device_register("acerhdf", 1, 0, NULL,
+        thz_dev = thermal_zone_device_register("acerhdf", 2, 0, NULL,
                                               &acerhdf_dev_ops,
                                               &acerhdf_zone_params, 0,
                                               (kernelmode) ? interval*1000 : 0);