linux-kernel - Re: [PATCH 3/4] mfd: arizona: Avoid use of legacy IRQ mapping

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Date:	Thu, 21 Aug 2014 12:59:45 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
Cc:	sameo@...ux.intel.com, patches@...nsource.wolfsonmicro.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] mfd: arizona: Avoid use of legacy IRQ mapping

On Tue, 12 Aug 2014, Charles Keepax wrote:

> regmap_add_irq_chip is called from arizona_irq_init with the irq_base
> specified as -1 and regmap_add_irq_chip uses if (irq_base) to check if
> it should use legacy IRQ mapping. As such the irq mappings are currently
> added with irq_domain_add_legacy, rather than irq_domain_add_linear.
> This is clearly a typo as there is no reason why this driver can't use
> irq_domain_add_linear.
> 
> This patch corrects this by passing the irq_base as zero to
> regmap_add_irq_chip.
> 
> Signed-off-by: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
> ---
>  drivers/mfd/arizona-irq.c |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)

Applied, thanks.

> diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c
> index fac00b2..b235e59 100644
> --- a/drivers/mfd/arizona-irq.c
> +++ b/drivers/mfd/arizona-irq.c
> @@ -289,7 +289,7 @@ int arizona_irq_init(struct arizona *arizona)
>  
>  	ret = regmap_add_irq_chip(arizona->regmap,
>  				  irq_create_mapping(arizona->virq, 0),
> -				  IRQF_ONESHOT, -1, aod,
> +				  IRQF_ONESHOT, 0, aod,
>  				  &arizona->aod_irq_chip);
>  	if (ret != 0) {
>  		dev_err(arizona->dev, "Failed to add AOD IRQs: %d\n", ret);
> @@ -298,7 +298,7 @@ int arizona_irq_init(struct arizona *arizona)
>  
>  	ret = regmap_add_irq_chip(arizona->regmap,
>  				  irq_create_mapping(arizona->virq, 1),
> -				  IRQF_ONESHOT, -1, irq,
> +				  IRQF_ONESHOT, 0, irq,
>  				  &arizona->irq_chip);
>  	if (ret != 0) {
>  		dev_err(arizona->dev, "Failed to add main IRQs: %d\n", ret);

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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