From 0ef330e10dcdbca8f4566e9eaf77015f8ce039d3 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Tue, 10 Jan 2012 19:26:45 +0000 Subject: ARM: local timers: introduce a new registration interface In order to switch to a runtime selectable local timer, add a registration interface that timer drivers can use to register to the core. local_timer_setup() and local_timer_stop() are made weak symbols in order not to break existing setups. Signed-off-by: Marc Zyngier --- arch/arm/include/asm/localtimer.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'arch/arm/include/asm/localtimer.h') diff --git a/arch/arm/include/asm/localtimer.h b/arch/arm/include/asm/localtimer.h index 7e1b2c5..f088d63 100644 --- a/arch/arm/include/asm/localtimer.h +++ b/arch/arm/include/asm/localtimer.h @@ -15,6 +15,11 @@ struct clock_event_device; +struct local_timer_ops { + int (*setup)(struct clock_event_device *); + void (*stop)(struct clock_event_device *); +}; + /* * Setup a per-cpu timer, whether it be a local timer or dummy broadcast */ @@ -38,6 +43,11 @@ void local_timer_stop(struct clock_event_device *); */ int local_timer_setup(struct clock_event_device *); +/* + * Register a local timer driver + */ +int local_timer_register(struct local_timer_ops *); + #else static inline int local_timer_setup(struct clock_event_device *evt) @@ -48,6 +58,11 @@ static inline int local_timer_setup(struct clock_event_device *evt) static inline void local_timer_stop(struct clock_event_device *evt) { } + +static inline int local_timer_register(struct local_timer_ops *ops) +{ + return -ENXIO; +} #endif #endif -- cgit v1.1