commit d100f25956e8626afeafbb38558ca8c58df1cb6b
author Andrew Victor <andrew@sanpeople.com> Fri Dec 01 10:15:04 2006 +0100
committer Russell King <rmk+kernel@arm.linux.org.uk> Fri Dec 01 13:53:55 2006 +0000
tree 9f51f0bf1cef5d20ad0f9722d77db97b60a82ef0
parent 86ad76bb2db7029343f681359c4b328fd8c36ae8

[ARM] 3955/1: AT91: Clear timer interrupt when resuming

Attached is a patch for at91rm9200_time.c which removes
the 'BUG: soft lockup detected on CPU#0!' message when
exiting suspended states.

Patch from Savin Zlobec

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-at91rm9200/at91rm9200_time.c

diff --git a/arch/arm/mach-at91rm9200/at91rm9200_time.c b/arch/arm/mach-at91rm9200/at91rm9200_time.c
index 8e9c049..b999e19 100644
--- a/arch/arm/mach-at91rm9200/at91rm9200_time.c
+++ b/arch/arm/mach-at91rm9200/at91rm9200_time.c
@@ -101,6 +101,9 @@
 	/* Set Period Interval timer */
 	at91_sys_write(AT91_ST_PIMR, LATCH);
 
+	/* Clear any pending interrupts */
+	(void) at91_sys_read(AT91_ST_SR);
+
 	/* Enable Period Interval Timer interrupt */
 	at91_sys_write(AT91_ST_IER, AT91_ST_PITS);
 }