linux-kernel - [PATCH 01/02] irqchip: renesas-irqc: Use lazy disable

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Date:	Wed, 04 Dec 2013 21:05:46 +0900
From:	Magnus Damm <magnus.damm@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	linux-sh@...r.kernel.org, rob.herring@...xeda.com,
	grant.likely@...retlab.ca, horms@...ge.net.au,
	Magnus Damm <magnus.damm@...il.com>, tglx@...utronix.de
Subject: [PATCH 01/02] irqchip: renesas-irqc: Use lazy disable

From: Magnus Damm <damm@...nsource.se>

Set the ->irq_enable() and ->irq_disable() methods to NULL
to enable lazy disable of interrupts. This by itself provides
some level of optimization, but is mainly enabled as ground
work for future Suspend-to-RAM wake up support.

Signed-off-by: Magnus Damm <damm@...nsource.se>
---

 drivers/irqchip/irq-renesas-irqc.c |    2 --
 1 file changed, 2 deletions(-)

--- 0001/drivers/irqchip/irq-renesas-irqc.c
+++ work/drivers/irqchip/irq-renesas-irqc.c	2013-12-04 18:12:45.000000000 +0900
@@ -212,8 +212,6 @@ static int irqc_probe(struct platform_de
 	irq_chip->name = name;
 	irq_chip->irq_mask = irqc_irq_disable;
 	irq_chip->irq_unmask = irqc_irq_enable;
-	irq_chip->irq_enable = irqc_irq_enable;
-	irq_chip->irq_disable = irqc_irq_disable;
 	irq_chip->irq_set_type = irqc_irq_set_type;
 	irq_chip->flags	= IRQCHIP_SKIP_SET_WAKE;
 
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