aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/spi/spi-fsl-dspi.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/spi/spi-fsl-dspi.c')
-rw-r--r--drivers/spi/spi-fsl-dspi.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index 35c0dd945668..a67b0ff6a362 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -70,6 +70,7 @@
70#define SPI_SR 0x2c 70#define SPI_SR 0x2c
71#define SPI_SR_EOQF 0x10000000 71#define SPI_SR_EOQF 0x10000000
72#define SPI_SR_TCFQF 0x80000000 72#define SPI_SR_TCFQF 0x80000000
73#define SPI_SR_CLEAR 0xdaad0000
73 74
74#define SPI_RSER 0x30 75#define SPI_RSER 0x30
75#define SPI_RSER_EOQFE 0x10000000 76#define SPI_RSER_EOQFE 0x10000000
@@ -646,6 +647,11 @@ static const struct regmap_config dspi_regmap_config = {
646 .max_register = 0x88, 647 .max_register = 0x88,
647}; 648};
648 649
650static void dspi_init(struct fsl_dspi *dspi)
651{
652 regmap_write(dspi->regmap, SPI_SR, SPI_SR_CLEAR);
653}
654
649static int dspi_probe(struct platform_device *pdev) 655static int dspi_probe(struct platform_device *pdev)
650{ 656{
651 struct device_node *np = pdev->dev.of_node; 657 struct device_node *np = pdev->dev.of_node;
@@ -709,6 +715,7 @@ static int dspi_probe(struct platform_device *pdev)
709 return PTR_ERR(dspi->regmap); 715 return PTR_ERR(dspi->regmap);
710 } 716 }
711 717
718 dspi_init(dspi);
712 dspi->irq = platform_get_irq(pdev, 0); 719 dspi->irq = platform_get_irq(pdev, 0);
713 if (dspi->irq < 0) { 720 if (dspi->irq < 0) {
714 dev_err(&pdev->dev, "can't get platform irq\n"); 721 dev_err(&pdev->dev, "can't get platform irq\n");