[tip:irq/urgent] ARM: OMAP: wakeupgen: Restore the irq_set_type() mechanism

[tip-bot for Grygorii Strashko]

Commit-ID:  63059a272398ef5dc1bd7065a036e8b6e82d1af7
Gitweb:     http://git.kernel.org/tip/63059a272398ef5dc1bd7065a036e8b6e82d1af7
Author:     Grygorii Strashko <grygorii.strashko@xxxxxx>
AuthorDate: Fri, 14 Aug 2015 15:20:28 +0300
Committer:  Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Thu, 20 Aug 2015 00:25:25 +0200

ARM: OMAP: wakeupgen: Restore the irq_set_type() mechanism

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>
Cc: stable@xxxxxxxxxxxxxxx # 4.1
Link: http://lkml.kernel.org/r/1439554830-19502-5-git-send-email-grygorii.strashko@xxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
 arch/arm/mach-omap2/omap-wakeupgen.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c
index 8e52621..e1d2e99 100644
--- 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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