4.1-stable review patch. If anyone has any objections, please let me know.
------------------
From: Grygorii Strashko <grygorii.strashko@xxxxxx>
commit 63059a272398ef5dc1bd7065a036e8b6e82d1af7 upstream.
The conversion of the wakeupgen irqchip to hierarchical irq domains
failed to provide a mechanism to properly set the trigger type of an
interrupt.
The wakeupgen irq chip itself has no mechanism and therefor no
irq_set_type() callback. The code before the conversion relayed the
trigger configuration directly to the underlying GIC.
Restore the correct behaviour by setting the wakeupgen irq_set_type
callback to irq_chip_set_type_parent(). This propagates the
set_trigger() call to the underlying GIC irqchip.
[ tglx: Massaged changelog ]
Fixes: 7136d457f365 ('ARM: omap: convert wakeupgen to stacked domains')
Signed-off-by: Grygorii Strashko <grygorii.strashko@xxxxxx>
Acked-by: Tony Lindgren <tony@xxxxxxxxxxx>
Cc: Sudeep Holla <sudeep.holla@xxxxxxx>
Cc: <linux@xxxxxxxxxxxxxxxx>
Cc: <nsekhar@xxxxxx>
Cc: <jason@xxxxxxxxxxxxxx>
Cc: <balbi@xxxxxx>
Cc: <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>
Cc: <marc.zyngier@xxxxxxx>
Link: http://lkml.kernel.org/r/1439554830-19502-5-git-send-email-grygorii.strashko@xxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm/mach-omap2/omap-wakeupgen.c | 1 +
1 file changed, 1 insertion(+)
--- a/arch/arm/mach-omap2/omap-wakeupgen.c
+++ b/arch/arm/mach-omap2/omap-wakeupgen.c
@@ -392,6 +392,7 @@ static struct irq_chip wakeupgen_chip =
.irq_mask = wakeupgen_mask,
.irq_unmask = wakeupgen_unmask,
.irq_retrigger = irq_chip_retrigger_hierarchy,
+ .irq_set_type = irq_chip_set_type_parent,
.flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND,
#ifdef CONFIG_SMP
.irq_set_affinity = irq_chip_set_affinity_parent,
--
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