From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Thu, 28 Mar 2013 20:46:44 +0000 (+0100)
Subject: ARM: irq: Call irqchip_init if no init_irq function is specified
X-Git-Tag: v3.10-rc1~125^2~16
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=ebafed7ab9b637656b685f1dc1ee528c77241a0d;p=linux.git

ARM: irq: Call irqchip_init if no init_irq function is specified

More and more sub-architectures are using only the irqchip_init
function. Make the core code call this function if no init_irq field is
provided in the machine description to remove some boilerplate code.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---

diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 8e4ef4c83a74..9723d17b8f38 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -26,6 +26,7 @@
 #include <linux/ioport.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
+#include <linux/irqchip.h>
 #include <linux/random.h>
 #include <linux/smp.h>
 #include <linux/init.h>
@@ -114,7 +115,10 @@ EXPORT_SYMBOL_GPL(set_irq_flags);
 
 void __init init_IRQ(void)
 {
-	machine_desc->init_irq();
+	if (IS_ENABLED(CONFIG_OF) && !machine_desc->init_irq)
+		irqchip_init();
+	else
+		machine_desc->init_irq();
 }
 
 #ifdef CONFIG_MULTI_IRQ_HANDLER