Thread (16 messages) 16 messages, 5 authors, 2013-06-05

[PATCH] ARM: zynq: wfi exit on same cpu is valid

STALE4867d

From: Sanjay Singh Rawat <hidden>
Date: 2013-05-31 10:44:26
Subsystem: arm port, arm/zynq architecture, the rest · Maintainers: Russell King, Michal Simek, Linus Torvalds

The current code considers every wakeup as spurious, which is not
correct. Handle the same way as other arm platforms are doing.

Signed-off-by: Sanjay Singh Rawat <redacted>
---
 arch/arm/mach-zynq/hotplug.c |    7 +++++++
 1 file changed, 7 insertions(+)
diff --git a/arch/arm/mach-zynq/hotplug.c b/arch/arm/mach-zynq/hotplug.c
index c89672b..a1ab22c 100644
--- a/arch/arm/mach-zynq/hotplug.c
+++ b/arch/arm/mach-zynq/hotplug.c
@@ -67,6 +67,13 @@ static inline void zynq_platform_do_lowpower(unsigned int cpu, int *spurious)
 		dsb();
 		wfi();
 
+		if (pen_release == cpu_logical_map(cpu)) {
+			/*
+			 * OK, proper wakeup, we're done
+			 */
+			break;
+		}
+
 		/*
 		 * Getting here, means that we have come out of WFI without
 		 * having been woken up - this shouldn't happen
-- 
1.7.9.5
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help