MIPS: DB1200: PCMCIA card detection must not be auto-enabled.

Same issues as SD card detection:  One of both is always triggering and the
handlers take care to shut it up and enable the other.  To avoid messages
about "unbalanced interrupt enable/disable" they must not be automatically
enabled when initally requested.

This was not an issue with the db1200_defconfig due to fortunate timings;
on a build without network chip support the warnings appear.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/1133/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 7 insertions, 3 deletions

diff --git a/arch/mips/alchemy/devboards/db1200/setup.c b/arch/mips/alchemy/devboards/db1200/setup.c
index be7e92ea01f3..887619547553 100644
--- a/arch/mips/alchemy/devboards/db1200/setup.c
+++ b/arch/mips/alchemy/devboards/db1200/setup.c
@@ -66,12 +66,16 @@ static int __init db1200_arch_init(void)
         set_irq_type(AU1200_GPIO7_INT, IRQF_TRIGGER_LOW);
         bcsr_init_irq(DB1200_INT_BEGIN, DB1200_INT_END, AU1200_GPIO7_INT);
 
-        /* do not autoenable these: CPLD has broken edge int handling,
-         * and the CD handler setup requires manual enabling to work
-         * around that.
+        /* insert/eject pairs: one of both is always screaming.  To avoid
+         * issues they must not be automatically enabled when initially
+         * requested.
          */
         irq_to_desc(DB1200_SD0_INSERT_INT)->status |= IRQ_NOAUTOEN;
         irq_to_desc(DB1200_SD0_EJECT_INT)->status |= IRQ_NOAUTOEN;
+        irq_to_desc(DB1200_PC0_INSERT_INT)->status |= IRQ_NOAUTOEN;
+        irq_to_desc(DB1200_PC0_EJECT_INT)->status |= IRQ_NOAUTOEN;
+        irq_to_desc(DB1200_PC1_INSERT_INT)->status |= IRQ_NOAUTOEN;
+        irq_to_desc(DB1200_PC1_EJECT_INT)->status |= IRQ_NOAUTOEN;
 
         return 0;
 }