From: Chuanhua Han <chuanhua.han@nxp.com>
Date: Mon, 29 Oct 2018 11:11:16 +0800
Subject: spi: spi-fsl-dspi: use IRQF_SHARED mode to request IRQ

Git-commit: 13aed23927414137a017ac2f7d567001f714293f
Patch-mainline: v4.21-rc1
References: fate#326572

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@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
 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 3082e72e4f6c..5e10dc5c93a5 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -1090,8 +1090,8 @@ 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;
-- 
2.11.0