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authorJonathan Austin <Jonathan.Austin@arm.com>2012-09-21 18:51:44 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-09-26 22:57:52 +0100
commit56942fec06efa0e17df0f4c3b438332c923b9014 (patch)
tree89b604c987b7f6a0eaaa16af7a9d8f45711349a7 /arch/arm/include/asm/arch_timer.h
parenta1b2dde70419ae947fd7c9c8fcad7da005dc600e (diff)
ARM: 7538/1: delay: add registration mechanism for delay timer sources
The current timer-based delay loop relies on the architected timer to initiate the switch away from the polling-based implementation. This is unfortunate for platforms without the architected timers but with a suitable delay source (that is, constant frequency, always powered-up and ticking as long as the CPUs are online). This patch introduces a registration mechanism for the delay timer (which provides an unconditional read_current_timer implementation) and updates the architected timer code to use the new interface. Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Jonathan Austin <jonathan.austin@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include/asm/arch_timer.h')
-rw-r--r--arch/arm/include/asm/arch_timer.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/arm/include/asm/arch_timer.h b/arch/arm/include/asm/arch_timer.h
index ad9b155c8262..d40229d9a1c9 100644
--- a/arch/arm/include/asm/arch_timer.h
+++ b/arch/arm/include/asm/arch_timer.h
@@ -5,7 +5,6 @@
#include <linux/clocksource.h>
#ifdef CONFIG_ARM_ARCH_TIMER
-#define ARCH_HAS_READ_CURRENT_TIMER
int arch_timer_of_register(void);
int arch_timer_sched_clock_init(void);
struct timecounter *arch_timer_get_timecounter(void);