thermal: cpu cooling: allow module builds
As thermal drivers can be built as modules and also
the thermal framework itself, building cpu cooling
only as built-in can cause linking errors. For instance:
* Generic Thermal sysfs driver
*
Generic Thermal sysfs driver (THERMAL) [M/n/y/?] m
generic cpu cooling support (CPU_THERMAL) [N/y/?] (NEW) y
with the following drive:
CONFIG_OMAP_BANDGAP=m
generates:
ERROR: "cpufreq_cooling_unregister" [drivers/staging/omap-thermal/omap-thermal.ko] undefined!
ERROR: "cpufreq_cooling_register" [drivers/staging/omap-thermal/omap-thermal.ko] undefined!
This patch changes cpu cooling driver to allow it
to be built as module.
Reported-by: Enric Balletbo i Serra <eballetbo@gmail.com>
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Reviewed-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index d96da07..8636fae 100644
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -67,7 +67,7 @@
Enable this to let the user space manage the platform thermals.
config CPU_THERMAL
- bool "generic cpu cooling support"
+ tristate "generic cpu cooling support"
depends on CPU_FREQ
select CPU_FREQ_TABLE
help