netdev - Re: [PATCH v2 net-next 08/13] at86rf230: rework irq

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Date:	Wed, 2 Jul 2014 18:57:56 +0200
From:	Alexander Aring <alex.aring@...il.com>
To:	alex.bluesman.smirnov@...il.com
Cc:	dbaryshkov@...il.com, linux-zigbee-devel@...ts.sourceforge.net,
	netdev@...r.kernel.org, stilwellt@...nlabs.co
Subject: Re: [PATCH v2 net-next 08/13] at86rf230: rework irq_pol setting

Hi,

On Wed, Jul 02, 2014 at 05:10:05PM +0200, Alexander Aring wrote:
> This patch rework the irq_pol register setting for rising and falling
> interrupt settings only. The default behaviour should be rising flag.
> 
> Also use IRQ_TYPE_* defines instead of IRQF_* defines. There is no
> functionality change but irq_get_trigger_type returns IRQ_TYPE_* defines.
> 
> Signed-off-by: Alexander Aring <alex.aring@...il.com>
> ---
>  drivers/net/ieee802154/at86rf230.c | 9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c
> index 492fb7e..2340750 100644
> --- a/drivers/net/ieee802154/at86rf230.c
> +++ b/drivers/net/ieee802154/at86rf230.c
> @@ -1276,7 +1276,7 @@ static struct at86rf2xx_chip_data at86rf212_data = {
>  
>  static int at86rf230_hw_init(struct at86rf230_local *lp)
>  {
> -	int rc, irq_pol, irq_type;
> +	int rc, irq_pol, irq_type = IRQ_ACTIVE_HIGH;

this should be:

int rc, irq_type, irq_pol = IRQ_ACTIVE_HIGH;

>  	unsigned int dvdd;
>  	u8 csma_seed[2];
>  
> @@ -1285,11 +1285,8 @@ static int at86rf230_hw_init(struct at86rf230_local *lp)
>  		return rc;
>  
>  	irq_type = irq_get_trigger_type(lp->spi->irq);
> -	/* configure irq polarity, defaults to high active */
> -	if (irq_type & (IRQF_TRIGGER_FALLING | IRQF_TRIGGER_LOW))
> -		irq_pol = IRQ_ACTIVE_LOW;
> -	else
> -		irq_pol = IRQ_ACTIVE_HIGH;
> +	if (irq_type == IRQ_TYPE_EDGE_FALLING)
> +		irq_type = IRQ_ACTIVE_LOW;

and this:

if (irq_type == IRQ_TYPE_EDGE_FALLING)
	irq_pol = IRQ_ACTIVE_LOW;

Sorry, I will send a v3.

- Alex
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