linux-kernel - [PATCH 1/4] mmc: mtk-sd: don't hard-code interrupt trigger type

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Date:   Sat, 04 May 2019 20:24:56 +1000
From:   NeilBrown <neil@...wn.name>
To:     Ulf Hansson <ulf.hansson@...aro.org>,
        Chaotian Jing <chaotian.jing@...iatek.com>
Cc:     linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
        thirtythreeforty@...il.com
Subject: [PATCH 1/4] mmc: mtk-sd: don't hard-code interrupt trigger type

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 replace IRQF_TRIGGER_LOW with IRQF_TRIGGER_NONE.

Also IRQF_ONESHOT is not needed - it is used for threaded interrupt
handlers, and this driver does not used a threaded interrupt handler.
So remove that setting.

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 0798f0ba6d34..469d4a717175 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -2240,7 +2240,7 @@ 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);
+			       IRQF_TRIGGER_NONE, pdev->name, host);
 	if (ret)
 		goto release;