Re: [PATCH] mmc: mediatek: Avoid ugly error message when SDIO wakeup IRQ isn't used

[Matthias Brugger]

On 10/05/2023 15:44, Douglas Anderson wrote:
> When I boot a kukui-kodama board, I see an ugly warning in my kernel
> log:
>    mtk-msdc 11240000.mmc: error -ENXIO: IRQ sdio_wakeup not found
>
> It's pretty normal not to have an "sdio_wakeup" IRQ defined. In fact,
> no device trees in mainline seem to have it. Let's use the
> platform_get_irq_byname_optional() to avoid the error message.
>
> Fixes: 527f36f5efa4 ("mmc: mediatek: add support for SDIO eint wakup IRQ")
> Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>

Reviewed-by: Matthias Brugger <matthias.bgg@xxxxxxxxx>

> ---
>
>   drivers/mmc/host/mtk-sd.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
> index edade0e54a0c..8ce864169986 100644
> --- a/drivers/mmc/host/mtk-sd.c
> +++ b/drivers/mmc/host/mtk-sd.c
> @@ -2707,7 +2707,7 @@ static int msdc_drv_probe(struct platform_device *pdev)
>   
>   	/* Support for SDIO eint irq ? */
>   	if ((mmc->pm_caps & MMC_PM_WAKE_SDIO_IRQ) && (mmc->pm_caps & MMC_PM_KEEP_POWER)) {
> -		host->eint_irq = platform_get_irq_byname(pdev, "sdio_wakeup");
> +		host->eint_irq = platform_get_irq_byname_optional(pdev, "sdio_wakeup");
>   		if (host->eint_irq > 0) {
>   			host->pins_eint = pinctrl_lookup_state(host->pinctrl, "state_eint");
>   			if (IS_ERR(host->pins_eint)) {