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authorMarc Zyngier <Marc.Zyngier@arm.com>2015-09-28 15:49:16 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-10-01 02:18:38 +0200
commitaad83b15aa21f2d9e46b978b27bc63989e61202d (patch)
treeb8bcede56a276d9ab979bfb0c630ad3d05bb4845
parentclocksource / ACPI: Add probing infrastructure for ACPI-based clocksources (diff)
downloadlinux-dev-aad83b15aa21f2d9e46b978b27bc63989e61202d.tar.xz
linux-dev-aad83b15aa21f2d9e46b978b27bc63989e61202d.zip
clocksource: Add new CLKSRC_{PROBE,ACPI} config symbols
The clocksource probing infrastructure currently depends on CONFIG_CLKSRC_OF, which depends on CONFIG_OF. In order to make this infrastructure selectable even if CONFIG_OF is not selected, introduce a new CONFIG_CLKSRC_PROBE (which allow the infrastructure to be compiled in), and CONFIG_CLKSRC_ACPI (which is the pendent of CONFIG_CLKSRC_OF for ACPI). Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--drivers/clocksource/Kconfig8
-rw-r--r--drivers/clocksource/Makefile2
-rw-r--r--include/linux/clocksource.h2
3 files changed, 10 insertions, 2 deletions
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index a7726db13abb..fefedf15be03 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -2,6 +2,14 @@ menu "Clock Source drivers"
config CLKSRC_OF
bool
+ select CLKSRC_PROBE
+
+config CLKSRC_ACPI
+ bool
+ select CLKSRC_PROBE
+
+config CLKSRC_PROBE
+ bool
config CLKSRC_I8253
bool
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index 5c00863c3e33..b47be92cd7ef 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -1,4 +1,4 @@
-obj-$(CONFIG_CLKSRC_OF) += clksrc-of.o
+obj-$(CONFIG_CLKSRC_PROBE) += clksrc-of.o
obj-$(CONFIG_ATMEL_PIT) += timer-atmel-pit.o
obj-$(CONFIG_ATMEL_ST) += timer-atmel-st.o
obj-$(CONFIG_ATMEL_TCB_CLKSRC) += tcb_clksrc.o
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index 8cde04803d91..6eab6abf89b3 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -246,7 +246,7 @@ extern int clocksource_i8253_init(void);
#define CLOCKSOURCE_OF_DECLARE(name, compat, fn) \
OF_DECLARE_1(clksrc, name, compat, fn)
-#ifdef CONFIG_CLKSRC_OF
+#ifdef CONFIG_CLKSRC_PROBE
extern void clocksource_of_init(void);
#else
static inline void clocksource_of_init(void) {}