[tip:irq/core] irqchip: renesas-intc-irqpin: Add suspend-to-RAM wake up support

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Commit-ID:  1c36d42c4ffee9e38e122ed822dd0a545a3a86da
Gitweb:     http://git.kernel.org/tip/1c36d42c4ffee9e38e122ed822dd0a545a3a86da
Author:     Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
AuthorDate: Wed, 20 Aug 2014 16:49:32 +0200
Committer:  Jason Cooper <jason@xxxxxxxxxxxxxx>
CommitDate: Thu, 21 Aug 2014 12:07:44 +0000

irqchip: renesas-intc-irqpin: Add suspend-to-RAM wake up support

Set the ->irq_enable() and ->irq_disable() methods to NULL to enable
lazy disable of interrupts, and set IRQCHIP_MASK_ON_SUSPEND to tell the
core that only IRQs marked as wake-ups need to stay enabled during
suspend-to-RAM.

This makes wake-up by gpio-keys from suspend-to-RAM work on
r8a7740/Armadillo.

Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Link: https://lkml.kernel.org/r/1408546172-22484-1-git-send-email-geert+renesas@xxxxxxxxx
Signed-off-by: Jason Cooper <jason@xxxxxxxxxxxxxx>
---
 drivers/irqchip/irq-renesas-intc-irqpin.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/irqchip/irq-renesas-intc-irqpin.c b/drivers/irqchip/irq-renesas-intc-irqpin.c
index 3ee78f0..a9efceb 100644
--- a/drivers/irqchip/irq-renesas-intc-irqpin.c
+++ b/drivers/irqchip/irq-renesas-intc-irqpin.c
@@ -454,10 +454,8 @@ static int intc_irqpin_probe(struct platform_device *pdev)
 	irq_chip->name = name;
 	irq_chip->irq_mask = disable_fn;
 	irq_chip->irq_unmask = enable_fn;
-	irq_chip->irq_enable = enable_fn;
-	irq_chip->irq_disable = disable_fn;
 	irq_chip->irq_set_type = intc_irqpin_irq_set_type;
-	irq_chip->flags	= IRQCHIP_SKIP_SET_WAKE;
+	irq_chip->flags	= IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND;
 
 	p->irq_domain = irq_domain_add_simple(pdev->dev.of_node,
 					      p->number_of_irqs,
--
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