thermal: add the support for building the generic thermal as a module

Build the generic thermal driver as module "thermal_sys".

Make ACPI thermal, video, processor and fan SELECT the generic
thermal driver, as these drivers rely on it to build the sysfs I/F.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Len Brown <len.brown@intel.com>

3 files changed, 5 insertions, 4 deletions

diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index 17e71d56f31e..4b628526df09 100644
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -3,7 +3,7 @@
 #
 
 menuconfig THERMAL
-        bool "Generic Thermal sysfs driver"
+        tristate "Generic Thermal sysfs driver"
         help
           Generic Thermal Sysfs driver offers a generic mechanism for
           thermal management. Usually it's made up of one or more thermal
@@ -11,4 +11,4 @@ menuconfig THERMAL
           Each thermal zone contains its own temperature, trip points,
           cooling devices.
           All platforms with ACPI thermal support can use this driver.
-          If you want this support, you should say Y here.
+          If you want this support, you should say Y or M here.
diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile
index 8ef1232de376..02b64517be8f 100644
--- a/drivers/thermal/Makefile
+++ b/drivers/thermal/Makefile
@@ -2,4 +2,5 @@
 # Makefile for sensor chip drivers.
 #
 
-obj-$(CONFIG_THERMAL)           += thermal.o
+thermal_sys-objs        += thermal.o
+obj-$(CONFIG_THERMAL)           += thermal_sys.o
diff --git a/drivers/thermal/thermal.c b/drivers/thermal/thermal.c
index 7f79bbf652d7..cf56af4b7e02 100644
--- a/drivers/thermal/thermal.c
+++ b/drivers/thermal/thermal.c
@@ -31,7 +31,7 @@
 #include <linux/thermal.h>
 #include <linux/spinlock.h>
 
-MODULE_AUTHOR("Zhang Rui")
+MODULE_AUTHOR("Zhang Rui");
 MODULE_DESCRIPTION("Generic thermal management sysfs support");
 MODULE_LICENSE("GPL");