linux-kernel - Re: [PATCH] irqchip: exynos-combiner: remove hard-coded irq

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Message-id: <2060959.cLD86Prq58@amdc1227>
Date:	Tue, 17 Sep 2013 14:37:27 +0200
From:	Tomasz Figa <t.figa@...sung.com>
To:	Chander Kashyap <chander.kashyap@...aro.org>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, kgene.kim@...sung.com,
	tglx@...utronix.de, thomas.ab@...sung.com
Subject: Re: [PATCH] irqchip: exynos-combiner: remove hard-coded irq_base value

Hi Chander,

On Monday 16 of September 2013 11:01:22 Chander Kashyap wrote:
> Pass '0' in place of hardcoded "irq_base" value as "first_irq" parameter
> to "irq_domain_add_simple" in order to use linear irq domain.
> 
> Signed-off-by: Chander Kashyap <chander.kashyap@...aro.org>
> ---
>  drivers/irqchip/exynos-combiner.c |   15 +++------------
>  1 file changed, 3 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/irqchip/exynos-combiner.c
> b/drivers/irqchip/exynos-combiner.c index 4c68265..b4ed356 100644
> --- a/drivers/irqchip/exynos-combiner.c
> +++ b/drivers/irqchip/exynos-combiner.c
> @@ -206,8 +206,7 @@ static unsigned int combiner_lookup_irq(int group)
> 
>  static void __init combiner_init(void __iomem *combiner_base,
>  				 struct device_node *np,
> -				 unsigned int max_nr,
> -				 int irq_base)
> +				 unsigned int max_nr)
>  {
>  	int i, irq;
>  	unsigned int nr_irq;
> @@ -221,7 +220,7 @@ static void __init combiner_init(void __iomem
> *combiner_base, return;
>  	}
> 
> -	combiner_irq_domain = irq_domain_add_simple(np, nr_irq, irq_base,
> +	combiner_irq_domain = irq_domain_add_simple(np, nr_irq, 0,
>  				&combiner_irq_domain_ops, combiner_data);

I believe you can safely go with calling irq_domain_add_linear() directly 
here.

Otherwise the patch looks good.

Best regards,
Tomasz

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