Commit-ID: 3434d23b694e5cb6e44e966914563406c31c4053 Gitweb: http://git.kernel.org/tip/3434d23b694e5cb6e44e966914563406c31c4053 Author: Viresh Kumar <viresh.ku...@linaro.org> AuthorDate: Thu, 21 May 2015 13:33:45 +0530 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate: Tue, 2 Jun 2015 14:40:47 +0200
clockevents: Add helpers to check the state of a clockevent device Some clockevent drivers, once migrated to use per-state callbacks, need to check the state of the clockevent device in their callbacks or interrupt handler. Add accessor functions clockevent_state_*() to get this information. Signed-off-by: Viresh Kumar <viresh.ku...@linaro.org> Cc: linaro-ker...@lists.linaro.org Cc: Peter Zijlstra <pet...@infradead.org> Link: http://lkml.kernel.org/r/04a717d490335c688dd7af899fbcede97e1bb8ee.1432192527.git.viresh.ku...@linaro.org Signed-off-by: Thomas Gleixner <t...@linutronix.de> --- include/linux/clockchips.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h index 271fa4c..64214ad 100644 --- a/include/linux/clockchips.h +++ b/include/linux/clockchips.h @@ -149,6 +149,32 @@ struct clock_event_device { struct module *owner; } ____cacheline_aligned; +/* Helpers to verify state of a clockevent device */ +static inline bool clockevent_state_detached(struct clock_event_device *dev) +{ + return dev->state == CLOCK_EVT_STATE_DETACHED; +} + +static inline bool clockevent_state_shutdown(struct clock_event_device *dev) +{ + return dev->state == CLOCK_EVT_STATE_SHUTDOWN; +} + +static inline bool clockevent_state_periodic(struct clock_event_device *dev) +{ + return dev->state == CLOCK_EVT_STATE_PERIODIC; +} + +static inline bool clockevent_state_oneshot(struct clock_event_device *dev) +{ + return dev->state == CLOCK_EVT_STATE_ONESHOT; +} + +static inline bool clockevent_state_oneshot_stopped(struct clock_event_device *dev) +{ + return dev->state == CLOCK_EVT_STATE_ONESHOT_STOPPED; +} + /* * Calculate a multiplication factor for scaled math, which is used to convert * nanoseconds based values to clock ticks: -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
