irqchip/tegra: Propagate IRQ type setting to parent

The LIC doesn't deal with the different types of interrupts itself
but needs to forward calls to set the appropriate type to its parent
IRQ controller.

Without this fix all IRQs routed through the LIC will stay at the
initial EDGE type, while most of them should actually be level triggered.

Fixes: 1eec582 "irqchip: tegra: Add Tegra210 support"
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: <stable@vger.kernel.org> # 4.1
Link: http://lkml.kernel.org/r/1445787552-13062-1-git-send-email-dev@lynxeye.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

drivers/irqchip/irq-tegra.c

@@ -214,6 +214,7 @@ static struct irq_chip tegra_ictlr_chip = {
 	.irq_unmask		= tegra_unmask,
 	.irq_retrigger		= tegra_retrigger,
 	.irq_set_wake		= tegra_set_wake,
+	.irq_set_type		= irq_chip_set_type_parent,
 	.flags			= IRQCHIP_MASK_ON_SUSPEND,
 #ifdef CONFIG_SMP
 	.irq_set_affinity	= irq_chip_set_affinity_parent,