[PATCH] PM / devfreq: rockchip: add PM_DEVFREQ_EVENT dependency

[Arnd Bergmann <arnd@arndb.de>]

The newly added ARM_RK3399_DMC_DEVFREQ driver requires the
DEVFREQ_EVENT_ROCKCHIP_DFI driver and tries to turn that on through
a 'select' statement, and that in turn has a dependency on
PM_DEVFREQ_EVENT, which may be disabled here:

warning: (ARM_RK3399_DMC_DEVFREQ) selects DEVFREQ_EVENT_ROCKCHIP_DFI which has unmet direct dependencies (PM_DEVFREQ && PM_DEVFREQ_EVENT && ARCH_ROCKCHIP)

We probably want a 'depends on' here, but other drivers use 'select'
too, so for consistency I'm doing the same.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 5a893e31a636 ("PM / devfreq: rockchip: add devfreq driver for rk3399 dmc")
---
 drivers/devfreq/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/devfreq/Kconfig b/drivers/devfreq/Kconfig
index 93b6ada06676..41254e702f1e 100644
--- a/drivers/devfreq/Kconfig
+++ b/drivers/devfreq/Kconfig
@@ -105,6 +105,7 @@ config ARM_RK3399_DMC_DEVFREQ
 	depends on ARCH_ROCKCHIP
 	select DEVFREQ_EVENT_ROCKCHIP_DFI
 	select DEVFREQ_GOV_SIMPLE_ONDEMAND
+	select PM_DEVFREQ_EVENT
 	select PM_OPP
 	help
           This adds the DEVFREQ driver for the RK3399 DMC(Dynamic Memory Controller).
-- 
2.9.0