[MIPS] Misc fixes for plat_irq_dispatch functions

 o adds missing ST0_IM masks, which caused the logging of valid interrupts
   as spurious
 o stops pnx8550 to log every interrupt as spurious
 o adds cause register masks for ip22/ip32, which caused handling of masked
   interrupts
 o removes some superfluous parentheses in the SNI interrupt code

Signed-Off-By: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/mips/emma2rh/markeins/irq.c b/arch/mips/emma2rh/markeins/irq.c
index e26630026375..6bcf6a06367a 100644
--- a/arch/mips/emma2rh/markeins/irq.c
+++ b/arch/mips/emma2rh/markeins/irq.c
@@ -115,7 +115,7 @@ void __init arch_init_irq(void)
 
 asmlinkage void plat_irq_dispatch(void)
 {
-        unsigned int pending = read_c0_status() & read_c0_cause();
+        unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM;
 
         if (pending & STATUSF_IP7)
                 do_IRQ(CPU_IRQ_BASE + 7);