[ARM] 3530/1: PXA Mainstone: prevent double enable_irq() in pcmcia

Patch from Thomas Gleixner

The mainstone board pcmcia interrupt have been enabled via setup_irq()
and the following socket check calls enable_irq again. Set the NOAUTOEN flag so the interrupt is not automatically enabled in setup_irq()

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 4 insertions, 1 deletions

diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index 98356f810007..02e188d98e7d 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -95,7 +95,10 @@ static void __init mainstone_init_irq(void)
         for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) {
                 set_irq_chip(irq, &mainstone_irq_chip);
                 set_irq_handler(irq, do_level_IRQ);
-                set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+                if (irq == MAINSTONE_IRQ(10) || irq == MAINSTONE_IRQ(14))
+                        set_irq_flags(irq, IRQF_VALID | IRQF_PROBE | IRQF_NOAUTOEN);
+                else
+                        set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
         }
         set_irq_flags(MAINSTONE_IRQ(8), 0);
         set_irq_flags(MAINSTONE_IRQ(12), 0);