PM / devfreq: exynos: Enable building exynos PPMU as module

Export symbols from the PPMU driver needed to build the exynos bus
driver as a module.

Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>

2 files changed, 4 insertions, 1 deletions

diff --git a/drivers/devfreq/Kconfig b/drivers/devfreq/Kconfig
index 2227e9bf3884..faf4e70c42e0 100644
--- a/drivers/devfreq/Kconfig
+++ b/drivers/devfreq/Kconfig
@@ -78,7 +78,7 @@ config ARM_EXYNOS4_BUS_DEVFREQ
           This does not yet operate with optimal voltages.
 
 config ARM_EXYNOS5_BUS_DEVFREQ
-        bool "ARM Exynos5250 Bus DEVFREQ Driver"
+        tristate "ARM Exynos5250 Bus DEVFREQ Driver"
         depends on SOC_EXYNOS5250
         select DEVFREQ_GOV_SIMPLE_ONDEMAND
         select PM_OPP
diff --git a/drivers/devfreq/exynos/exynos_ppmu.c b/drivers/devfreq/exynos/exynos_ppmu.c
index 75fcc5140ffb..97b75e513d29 100644
--- a/drivers/devfreq/exynos/exynos_ppmu.c
+++ b/drivers/devfreq/exynos/exynos_ppmu.c
@@ -73,6 +73,7 @@ void busfreq_mon_reset(struct busfreq_ppmu_data *ppmu_data)
                 exynos_ppmu_start(ppmu_base);
         }
 }
+EXPORT_SYMBOL(busfreq_mon_reset);
 
 void exynos_read_ppmu(struct busfreq_ppmu_data *ppmu_data)
 {
@@ -97,6 +98,7 @@ void exynos_read_ppmu(struct busfreq_ppmu_data *ppmu_data)
 
         busfreq_mon_reset(ppmu_data);
 }
+EXPORT_SYMBOL(exynos_read_ppmu);
 
 int exynos_get_busier_ppmu(struct busfreq_ppmu_data *ppmu_data)
 {
@@ -114,3 +116,4 @@ int exynos_get_busier_ppmu(struct busfreq_ppmu_data *ppmu_data)
 
         return busy;
 }
+EXPORT_SYMBOL(exynos_get_busier_ppmu);