Subject: [PATCH 1/2] ARM: irq: Call irqchit_init if no init_irq function is specified

From: [email-masked] (Rob Herring)
Date: Thu, 28 Mar 2013 09:48:18 -0500

On 03/28/2013 04:41 AM, Maxime Ripard wrote:
> 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 <[email-masked]>
> ---
>  arch/arm/kernel/irq.c |    6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
> index 8e4ef4c..df6f9a1 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 (machine_desc->init_irq)
> +		machine_desc->init_irq();
> +	else
> +		irqchip_init();

There needs to be an empty version defined for !OF.

Rob

>  }
>  
>  #ifdef CONFIG_MULTI_IRQ_HANDLER
>