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SubjectRe: [PATCH] at91_ether: use gpio_is_valid for phy IRQ line
Hi Nicolas,

On Thu, Nov 24, 2011 at 10:21:14PM +0100, Nicolas Ferre wrote:
> Use the generic gpiolib gpio_is_valid() function to test
> if the phy IRQ line GPIO is actually provided.
>
> For non-connected or non-existing phy IRQ lines, -EINVAL
> value is used for phy_irq_pin field of struct at91_eth_data.
>
> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
> ---
> drivers/net/ethernet/cadence/at91_ether.c | 23 +++++++++++++----------
> 1 files changed, 13 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/net/ethernet/cadence/at91_ether.c b/drivers/net/ethernet/cadence/at91_ether.c
> index 56624d3..a1c4143 100644
> --- a/drivers/net/ethernet/cadence/at91_ether.c
> +++ b/drivers/net/ethernet/cadence/at91_ether.c
> @@ -255,8 +255,7 @@ static void enable_phyirq(struct net_device *dev)
> unsigned int dsintr, irq_number;
> int status;
>
> - irq_number = lp->board_data.phy_irq_pin;
> - if (!irq_number) {
> + if (!gpio_is_valid(lp->board_data.phy_irq_pin)) {
> /*
> * PHY doesn't have an IRQ pin (RTL8201, DP83847, AC101L),
> * or board does not have it connected.
> @@ -265,6 +264,7 @@ static void enable_phyirq(struct net_device *dev)
> return;
> }
>
> + irq_number = lp->board_data.phy_irq_pin;

Does this need to be:

irq_number = gpio_to_irq(lp->board_data.phy_irq_pin);

and the same for the other occurrences? Otherwise this looks like the
right thing to me.

Jamie


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