From 064706514ec3fea740c2656e03c4f01f6a551ac4 Mon Sep 17 00:00:00 2001 From: Mark Rutland Date: Mon, 3 Jun 2013 13:33:53 -0700 Subject: clocksource: Add generic dummy timer driver Several architectures have a dummy timer driver tightly coupled with their broadcast code to support machines without cpu-local timers (or where there is a lack of driver support). Since 12ad100046: "clockevents: Add generic timer broadcast function" it's been possible to write broadcast-capable timer drivers decoupled from the broadcast mechanism. We can use this functionality to implement a generic dummy timer driver that can be shared by all architectures with generic tick broadcast (ARCH_HAS_TICK_BROADCAST). This patch implements a generic dummy timer using this facility. [sboyd: Make percpu data static, use __this_cpu_ptr(), move to early_initcall to properly register on each CPU, only register if more than one CPU possible] Signed-off-by: Mark Rutland Signed-off-by: Stephen Boyd Acked-by: Marc Zyngier , Cc: John Stultz Cc: Daniel Lezcano Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1370291642-13259-3-git-send-email-sboyd@codeaurora.org Signed-off-by: Thomas Gleixner --- drivers/clocksource/Makefile | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/clocksource/Makefile') diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile index 4853ea0f8fd..9ba8b4d867e 100644 --- a/drivers/clocksource/Makefile +++ b/drivers/clocksource/Makefile @@ -31,3 +31,4 @@ obj-$(CONFIG_VF_PIT_TIMER) += vf_pit_timer.o obj-$(CONFIG_ARM_ARCH_TIMER) += arm_arch_timer.o obj-$(CONFIG_CLKSRC_METAG_GENERIC) += metag_generic.o +obj-$(CONFIG_ARCH_HAS_TICK_BROADCAST) += dummy_timer.o -- cgit v1.2.3-70-g09d2