PM / devfreq: make event/exynos-ppmu DEVFREQ_EVENT_EXYNOS_PPMU tristate

The Kconfig currently controlling compilation of this code is:

config DEVFREQ_EVENT_EXYNOS_PPMU
  bool "EXYNOS PPMU (Platform Performance Monitoring Unit) DEVFREQ event Driver"

...meaning that it currently is not being built as a module by anyone.

Rather than rip out the existing modular code, Chanwoo indicated
that he'd rather see the driver offered as tristate.

I don't have the hardware for runtime validation, so this change
is only validated for compile and modpost.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>

diff --git a/drivers/devfreq/event/Kconfig b/drivers/devfreq/event/Kconfig
index 96ea29d..eb6f74a 100644 (file)
--- a/drivers/devfreq/event/Kconfig
+++ b/drivers/devfreq/event/Kconfig
@@ -22,7 +22,7 @@ config DEVFREQ_EVENT_EXYNOS_NOCP
          (Network on Chip) Probe counters to measure the bandwidth of AXI bus.
 
 config DEVFREQ_EVENT_EXYNOS_PPMU
-       bool "EXYNOS PPMU (Platform Performance Monitoring Unit) DEVFREQ event Driver"
+       tristate "EXYNOS PPMU (Platform Performance Monitoring Unit) DEVFREQ event Driver"
        depends on ARCH_EXYNOS
        select PM_OPP
        help