From: Petr Cvek <petrcve...@gmail.com>
The modification of EXIN register doesn't clean the bitfield before
the writing of a new value. After a few modifications the bitfield would
accumulate only '1's.
Signed-off-by: Petr Cvek <petrcve...@gmail.com>
---
arch/mips/lantiq/irq.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
index 21ccd580f8f5..35d7c5f6d159 100644
--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -150,8 +150,9 @@ static int ltq_eiu_settype(struct irq_data *d, unsigned int
type)
if (edge)
irq_set_handler(d->hwirq, handle_edge_irq);
- ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_C) |
- (val << (i * 4)), LTQ_EIU_EXIN_C);
+ ltq_eiu_w32((ltq_eiu_r32(LTQ_EIU_EXIN_C) &
+ (~(7 << (i * 4)))) | (val << (i * 4)),
+ LTQ_EIU_EXIN_C);
}
}
--
2.21.0
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