diff options
| -rw-r--r-- | drivers/mtd/spi-nor/fsl-quadspi.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mtd/spi-nor/fsl-quadspi.c b/drivers/mtd/spi-nor/fsl-quadspi.c index 2dd29c3..399c5e2 100644 --- a/drivers/mtd/spi-nor/fsl-quadspi.c +++ b/drivers/mtd/spi-nor/fsl-quadspi.c @@ -704,6 +704,10 @@ static int fsl_qspi_nor_setup(struct fsl_qspi *q) qspi_writel(q, QUADSPI_MCR_RESERVED_MASK | QUADSPI_MCR_END_CFG_MASK, base + QUADSPI_MCR); + /* clear flag register before enable the interrupt */ + reg = qspi_readl(q, q->iobase + QUADSPI_FR); + qspi_writel(q, reg, q->iobase + QUADSPI_FR); + /* enable the interrupt */ qspi_writel(q, QUADSPI_RSER_TFIE, q->iobase + QUADSPI_RSER); @@ -941,6 +945,10 @@ static int fsl_qspi_probe(struct platform_device *pdev) goto irq_failed; } + /* In case of interrupt arrive immediately after requesting irq, + * kernel will panic without init_completion. + */ + init_completion(&q->c); ret = devm_request_irq(dev, ret, fsl_qspi_irq_handler, 0, pdev->name, q); if (ret) { |