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authorHanjun Guo <hanjun.guo@linaro.org>2015-03-24 17:02:50 +0300
committerWill Deacon <will.deacon@arm.com>2015-03-26 18:13:07 +0300
commitb09ca1ecf6d499d5a33f978c905d2fbcc79b55d9 (patch)
treea9b807414433367bcf647a38d7d3e5623e236ace /include/linux/clocksource.h
parentd60fc3892c4de4a25658786f941690462c5a5bab (diff)
downloadlinux-b09ca1ecf6d499d5a33f978c905d2fbcc79b55d9.tar.xz
clocksource / arch_timer: Parse GTDT to initialize arch timer
Using the information presented by GTDT (Generic Timer Description Table) to initialize the arch timer (not memory-mapped). CC: Daniel Lezcano <daniel.lezcano@linaro.org> CC: Thomas Gleixner <tglx@linutronix.de> Originally-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Tested-by: Yijing Wang <wangyijing@huawei.com> Tested-by: Mark Langsdorf <mlangsdo@redhat.com> Tested-by: Jon Masters <jcm@redhat.com> Tested-by: Timur Tabi <timur@codeaurora.org> Tested-by: Robert Richter <rrichter@cavium.com> Acked-by: Robert Richter <rrichter@cavium.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Grant Likely <grant.likely@linaro.org> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'include/linux/clocksource.h')
-rw-r--r--include/linux/clocksource.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index 9c78d15d33e4..2b2e1f80c519 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -244,4 +244,10 @@ extern void clocksource_of_init(void);
static inline void clocksource_of_init(void) {}
#endif
+#ifdef CONFIG_ACPI
+void acpi_generic_timer_init(void);
+#else
+static inline void acpi_generic_timer_init(void) { }
+#endif
+
#endif /* _LINUX_CLOCKSOURCE_H */