[PATCH 6/8] ARM: ux500: use generic cpu idle function for wfi

Sanjay Singh Rawat sanjay.rawat at linaro.org
Mon May 27 10:32:43 EDT 2013


use cpu_do_idle for entering the wfi mode.

Signed-off-by: Sanjay Singh Rawat <sanjay.rawat at linaro.org>
---
 arch/arm/mach-ux500/hotplug.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-ux500/hotplug.c b/arch/arm/mach-ux500/hotplug.c
index 2bc00b0..f4ded92 100644
--- a/arch/arm/mach-ux500/hotplug.c
+++ b/arch/arm/mach-ux500/hotplug.c
@@ -25,8 +25,9 @@ void __ref ux500_cpu_die(unsigned int cpu)
 {
 	/* directly enter low power state, skipping secure registers */
 	for (;;) {
-		__asm__ __volatile__("dsb\n\t" "wfi\n\t"
-				: : : "memory");
+		/* enter WFI mode */
+		cpu_do_idle();
+
 		if (pen_release == cpu_logical_map(cpu)) {
 			/*
 			 * OK, proper wakeup, we're done
-- 
1.7.9.5




More information about the linux-arm-kernel mailing list