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openwrt-xburst/target/linux/orion/patches/008-top-level_irqs_are_level-triggered.patch
kaloz fc35f54386 add preliminary Marvell Orion support
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11352 3c298f89-4303-0410-b956-a3cf2f4a3e73
2008-06-04 13:51:17 +00:00

36 lines
1.1 KiB
Diff

Make it clear that Orion top-level IRQs are level-triggered. This
means that we don't need an ->ack() handler, or at least, we don't
need the ->ack() handler (or the acking part of the ->mask_ack()
handler) to actually do anything.
Given that, we might as well point our ->mask_ack() handler at the
->mask() handler instead of providing a dummy ->ack() handler, since
providing a ->mask_ack() handler on level IRQ sources will prevent
->ack() from ever being called.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
---
arch/arm/plat-orion/irq.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
--- a/arch/arm/plat-orion/irq.c
+++ b/arch/arm/plat-orion/irq.c
@@ -36,8 +36,8 @@
static struct irq_chip orion_irq_chip = {
.name = "orion_irq",
- .ack = orion_irq_mask,
.mask = orion_irq_mask,
+ .mask_ack = orion_irq_mask,
.unmask = orion_irq_unmask,
};
@@ -59,6 +59,7 @@
set_irq_chip(irq, &orion_irq_chip);
set_irq_chip_data(irq, maskaddr);
set_irq_handler(irq, handle_level_irq);
+ irq_desc[irq].status |= IRQ_LEVEL;
set_irq_flags(irq, IRQF_VALID);
}
}