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author | Dave Airlie <airlied@redhat.com> | 2016-11-07 09:37:09 +1000 |
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committer | Dave Airlie <airlied@redhat.com> | 2016-11-07 09:37:09 +1000 |
commit | 7b624ad8fea1be7ff4c22643e212191aa6a2a3c2 (patch) | |
tree | 41d0357d3259868cd85521c3fb9578cd2fc13831 /drivers/spi/spi-fsl-dspi.c | |
parent | dc345c46774bc150ab852d2c74ee6542de438d46 (diff) | |
parent | bc33b0ca11e3df467777a4fa7639ba488c9d4911 (diff) | |
download | linux-7b624ad8fea1be7ff4c22643e212191aa6a2a3c2.tar.bz2 |
Backmerge tag 'v4.9-rc4' into drm-next
Linux 4.9-rc4
This is needed for nouveau development.
Diffstat (limited to 'drivers/spi/spi-fsl-dspi.c')
-rw-r--r-- | drivers/spi/spi-fsl-dspi.c | 7 |
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 @@ #define SPI_SR 0x2c #define SPI_SR_EOQF 0x10000000 #define SPI_SR_TCFQF 0x80000000 +#define SPI_SR_CLEAR 0xdaad0000 #define SPI_RSER 0x30 #define SPI_RSER_EOQFE 0x10000000 @@ -646,6 +647,11 @@ static const struct regmap_config dspi_regmap_config = { .max_register = 0x88, }; +static void dspi_init(struct fsl_dspi *dspi) +{ + regmap_write(dspi->regmap, SPI_SR, SPI_SR_CLEAR); +} + static int dspi_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; @@ -709,6 +715,7 @@ static int dspi_probe(struct platform_device *pdev) return PTR_ERR(dspi->regmap); } + dspi_init(dspi); dspi->irq = platform_get_irq(pdev, 0); if (dspi->irq < 0) { dev_err(&pdev->dev, "can't get platform irq\n"); |