disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/spi/spi-fsl-lpspi.c
..
..
@@ -906,9 +906,14 @@
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 	ret = fsl_lpspi_dma_init(&pdev->dev, fsl_lpspi, controller);
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 	if (ret == -EPROBE_DEFER)
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 		goto out_pm_get;
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-
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 	if (ret < 0)
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 		dev_err(&pdev->dev, "dma setup error %d, use pio\n", ret);
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+	else
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+		/*
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+		 * disable LPSPI module IRQ when enable DMA mode successfully,
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+		 * to prevent the unexpected LPSPI module IRQ events.
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+		 */
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+		disable_irq(irq);
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917
 
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 	ret = devm_spi_register_controller(&pdev->dev, controller);
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 	if (ret < 0) {