clocksource/drivers/armv7m_systick: Add the COMPILE_TEST option

In order to increase the compilation test coverage, add the COMPILE_TEST
so the driver can be compiled even if it does not belong to the platform
or the architecture.

The io.h header inclusion is also added as it the driver does not compile
on UM platform.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 0275b16..01ecd88 100644 (file)
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -250,7 +250,7 @@ config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
         Use ARM global timer clock source as sched_clock
 
 config ARMV7M_SYSTICK
-       bool
+       bool "Support for the ARMv7M system time" if COMPILE_TEST
        select CLKSRC_OF if OF
        select CLKSRC_MMIO
        help

diff --git a/drivers/clocksource/armv7m_systick.c b/drivers/clocksource/armv7m_systick.c
index e93af1f..a315491 100644 (file)
--- a/drivers/clocksource/armv7m_systick.c
+++ b/drivers/clocksource/armv7m_systick.c
@@ -7,6 +7,7 @@
 #include <linux/kernel.h>
 #include <linux/clocksource.h>
 #include <linux/clockchips.h>
+#include <linux/io.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/clk.h>