linux-kernel - Re: [PATCH 1/2] ARM: irq: Call irqchit_init if no init

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Date:	Thu, 28 Mar 2013 17:52:48 -0500
From:	Rob Herring <robherring2@...il.com>
To:	Maxime Ripard <maxime.ripard@...e-electrons.com>
CC:	Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>,
	Russell King <linux@....linux.org.uk>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/2] ARM: irq: Call irqchit_init if no init_irq function
 is specified

On 03/28/2013 03:46 PM, 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 <maxime.ripard@...e-electrons.com>

Acked-by: Rob Herring <rob.herring@...xeda.com>

> ---
>  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..9723d17 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
> 

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