tree 915be54e8939a83259ab272f47d74b152ce35b0b
parent 1ab082d7cbd0f34e39a5396cc6340c00bc5d66ef
author dayu@datangmobile.cn <dayu@datangmobile.cn> 1234936062 +0800
committer Kumar Gala <galak@kernel.crashing.org> 1236608735 -0500

powerpc/83xx: Fix the interrupt loss problem on ipic

The interrupt pending register is write 1 clear.  If there are more than
one external interrupts pending at the same time, acking the first
interrupt by reading pending register then OR the corresponding bit and
write back to pending register will also clear other interrupt pending
bits.  That will cause loss of interrupt.

Signed-off-by: Da Yu <dayu@datangmobile.cn>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>