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irqchip: orion: clear bridge cause register on init

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It is good practice to mask and clear pending irqs on init. We already
mask all irqs, so also clear the bridge irq cause register.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.10+
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit is contained in:
Sebastian Hesselbarth 2014-01-23 23:38:04 +01:00 committed by Jason Cooper
parent 38dbfb59d1
commit 7b119fd1bd
1 changed files with 2 additions and 1 deletions
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3
drivers/irqchip/irq-orion.c
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@ -180,8 +180,9 @@ static int __init orion_bridge_irq_init(struct device_node *np,
gc->chip_types[0].chip.irq_mask = irq_gc_mask_clr_bit;
gc->chip_types[0].chip.irq_unmask = irq_gc_mask_set_bit;
/* mask all interrupts */
/* mask and clear all interrupts */
writel(0, gc->reg_base + ORION_BRIDGE_IRQ_MASK);
writel(0, gc->reg_base + ORION_BRIDGE_IRQ_CAUSE);
irq_set_handler_data(irq, domain);
irq_set_chained_handler(irq, orion_bridge_irq_handler);