linux-kernel - [PATCH 4.14 004/125] spi: spi-fsl-dspi: use IRQF

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Date:   Mon, 20 Jul 2020 17:35:43 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Chuanhua Han <chuanhua.han@....com>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.14 004/125] spi: spi-fsl-dspi: use IRQF_SHARED mode to request IRQ

From: Chuanhua Han <chuanhua.han@....com>

[ Upstream commit 13aed23927414137a017ac2f7d567001f714293f ]

Some SoC share one irq number between DSPI controllers.
For example, on the LX2160 board, DSPI0 and DSPI1 share one irq number.
In this case, only one DSPI controller can register successfully,
and others will fail.

Signed-off-by: Chuanhua Han <chuanhua.han@....com>
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/spi/spi-fsl-dspi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index baf5274485004..4402e531b1bfd 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -1027,8 +1027,8 @@ static int dspi_probe(struct platform_device *pdev)
 		goto out_clk_put;
 	}
 
-	ret = devm_request_irq(&pdev->dev, dspi->irq, dspi_interrupt, 0,
-			pdev->name, dspi);
+	ret = devm_request_irq(&pdev->dev, dspi->irq, dspi_interrupt,
+			       IRQF_SHARED, pdev->name, dspi);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Unable to attach DSPI interrupt\n");
 		goto out_clk_put;
-- 
2.25.1