linux-kernel - Re: [PATCH 2/5] mmc: mtk-sd: don't hard-code interrupt trigger type

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Message-ID: <1555402302.18628.17.camel@mhfsdcap03>
Date:   Tue, 16 Apr 2019 16:11:42 +0800
From:   Chaotian Jing <chaotian.jing@...iatek.com>
To:     NeilBrown <neil@...wn.name>
CC:     Ulf Hansson <ulf.hansson@...aro.org>, <linux-mmc@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <thirtythreeforty@...il.com>
Subject: Re: [PATCH 2/5] mmc: mtk-sd: don't hard-code interrupt trigger type

On Tue, 2019-04-16 at 14:47 +1000, NeilBrown wrote:
> When using devicetree for configuration, interrupt trigger type
> should be described in the dts file, not hard-coded in the C code.
> 
> The mtk-sd silicon in the mt7621 soc uses an active-high interrupt
> and so cannot be used with the current code.
> 
> So remove the trigger and leave it to be set from devicetree.
> 
> Signed-off-by: NeilBrown <neil@...wn.name>
> ---
>  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 4492a4465c0e..14e048239143 100644
> --- a/drivers/mmc/host/mtk-sd.c
> +++ b/drivers/mmc/host/mtk-sd.c
> @@ -2243,7 +2243,7 @@ static int msdc_drv_probe(struct platform_device *pdev)
>  	msdc_init_hw(host);
>  
>  	ret = devm_request_irq(&pdev->dev, host->irq, msdc_irq,
> -		IRQF_TRIGGER_LOW | IRQF_ONESHOT, pdev->name, host);
> +
change it to IRQF_TRIGGER_NONE | IRQF_ONESHOT
> 			       0, pdev->name, host);
>  	if (ret)
>  		goto release;
>  
> 
>