[PATCH] clocksource: ftm: select CLKSRC_MMIO
From: Arnd Bergmann
Date: Wed Jan 13 2016 - 18:03:14 EST
The ftm clocksource driver does not build if CLKSRC_MMIO is disabled:
drivers/built-in.o: In function `ftm_timer_init':
(init.text+0xd324): undefined reference to `clocksource_mmio_init'
(init.text+0xd484): undefined reference to `clocksource_mmio_readl_up'
This adds the same 'select' statement that the other similar drivers
use. Prior to allowing this driver to be enabled with COMPILE_TEST,
it was apparently unused. I'm not entirely sure who is using this
hardware, but it certainly can't hurt to ensure it builds cleanly.
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Fixes: ef49336bbd15 ("clocksource/drivers/fsl-ftm: Add the COMPILE_TEST option")
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index b251013eef0a..d3ad9512312b 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -256,6 +256,7 @@ config CLKSRC_SAMSUNG_PWM
config FSL_FTM_TIMER
bool "Freescale FlexTimer Module driver" if COMPILE_TEST
depends on GENERIC_CLOCKEVENTS
+ select CLKSRC_MMIO
help
Support for Freescale FlexTimer Module (FTM) timer.