Re: [PATCH v3] mmc: davinci: add support for SDIO irq handling

Sergei Shtylyov
2010-12-30T12:43:06Z

Hello.

On 30-12-2010 13:52, Sekhar Nori wrote:

> From: Alagu Sankar <alagusankar@embwise.com>

> This patch adds support for handing SDIO interrupt on
> DaVinci MMC/SD controller.

> The patch has been tested on DM355 and DA850 EVMs with
> Marvell Libertas based SDIO wireless LAN card.

> Signed-off-by: Alagu Sankar<alagusankar@embwise.com>
> Signed-off-by: Sekhar Nori<nsekhar@ti.com>
[...]

> diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c
> index b643dde..04c2fa4 100644
> --- a/drivers/mmc/host/davinci_mmc.c
> +++ b/drivers/mmc/host/davinci_mmc.c
[...]
> @@ -1209,7 +1267,8 @@ static int __init davinci_mmcsd_probe(struct platform_device *pdev)
> host->nr_sg = MAX_NR_SG;
>
> host->use_dma = use_dma;
> - host->irq = irq;
> + host->mmc_irq = irq;
> + host->sdio_irq = platform_get_irq(pdev, 1);
>
> if (host->use_dma&& davinci_acquire_dma_channels(host) != 0)
> host->use_dma = 0;
> @@ -1270,6 +1329,13 @@ static int __init davinci_mmcsd_probe(struct platform_device *pdev)
> if (ret)
> goto out;
>
> + if (host->sdio_irq != NO_IRQ) {

Note that platform_get_irq() will return -EXDEV if the resource is not
present. Perhaps you should check for it...

WBR, Sergei