The patch below does not apply to the 3.10-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

>From 5f40067fc86f0e49329ad4a852c278998ff4394e Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <[email protected]>
Date: Thu, 23 Jan 2014 23:38:05 +0100
Subject: [PATCH] irqchip: orion: use handle_edge_irq on bridge irqs

Bridge irqs are edge-triggered, i.e. they get asserted on low-to-high
transitions and not on the level of the downstream interrupt line.
This replaces handle_level_irq by the more appropriate handle_edge_irq.

Signed-off-by: Sebastian Hesselbarth <[email protected]>
Tested-by: Ezequiel Garcia <[email protected]>
Cc: <[email protected]>: f56c0738b5c2: "irqchip: orion: clear bridge cause 
register on init"
Cc: <[email protected]> # v3.10+
Signed-off-by: Jason Cooper <[email protected]>

diff --git a/drivers/irqchip/irq-orion.c b/drivers/irqchip/irq-orion.c
index 4137c3d15284..1f636f719065 100644
--- a/drivers/irqchip/irq-orion.c
+++ b/drivers/irqchip/irq-orion.c
@@ -143,7 +143,7 @@ static int __init orion_bridge_irq_init(struct device_node 
*np,
        }
 
        ret = irq_alloc_domain_generic_chips(domain, nrirqs, 1, np->name,
-                            handle_level_irq, clr, 0, IRQ_GC_INIT_MASK_CACHE);
+                            handle_edge_irq, clr, 0, IRQ_GC_INIT_MASK_CACHE);
        if (ret) {
                pr_err("%s: unable to alloc irq domain gc\n", np->name);
                return ret;

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