From 1543e317f1da31b75942316931e8f491a8920811 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 04 Jan 2024 10:08:02 +0000
Subject: [PATCH] disable FB
---
kernel/drivers/spi/spi-fsl-lpspi.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/kernel/drivers/spi/spi-fsl-lpspi.c b/kernel/drivers/spi/spi-fsl-lpspi.c
index 5d98611..c5ff6e8 100644
--- a/kernel/drivers/spi/spi-fsl-lpspi.c
+++ b/kernel/drivers/spi/spi-fsl-lpspi.c
@@ -906,9 +906,14 @@
ret = fsl_lpspi_dma_init(&pdev->dev, fsl_lpspi, controller);
if (ret == -EPROBE_DEFER)
goto out_pm_get;
-
if (ret < 0)
dev_err(&pdev->dev, "dma setup error %d, use pio\n", ret);
+ else
+ /*
+ * disable LPSPI module IRQ when enable DMA mode successfully,
+ * to prevent the unexpected LPSPI module IRQ events.
+ */
+ disable_irq(irq);
ret = devm_spi_register_controller(&pdev->dev, controller);
if (ret < 0) {
--
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