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| author |   Thor Thayer <thor.thayer@linux.intel.com> | 2019-11-05 14:22:10 -0600 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2019-11-05 23:48:19 +0000 |
| commit | 1403cfa69d310781f9548951c97725c67ffcf613 (patch) | |
| tree | df9d68dd5fbbc55abcf3783c1bc29f6f7fe85f2d /drivers/spi | |
| parent | spi: sifive: disable clk when probe fails and remove (diff) | |
| download | linux-dev-1403cfa69d310781f9548951c97725c67ffcf613.tar.xz linux-dev-1403cfa69d310781f9548951c97725c67ffcf613.zip | |
spi: dw: Fix Designware SPI loopback
The SPI_LOOP is set in spi->mode but not propagated to the register.
A previous patch removed the bit during a cleanup.
Fixes: e1bc204894ea ("spi: dw: fix potential variable assignment error")
Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com>
Link: https://lore.kernel.org/r/1572985330-5525-1-git-send-email-thor.thayer@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-dw.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c index 9a49e073e8b7..076652d3d051 100644 --- a/drivers/spi/spi-dw.c +++ b/drivers/spi/spi-dw.c @@ -308,7 +308,8 @@ static int dw_spi_transfer_one(struct spi_controller *master, cr0 = (transfer->bits_per_word - 1) | (chip->type << SPI_FRF_OFFSET) | ((((spi->mode & SPI_CPOL) ? 1 : 0) << SPI_SCOL_OFFSET) | - (((spi->mode & SPI_CPHA) ? 1 : 0) << SPI_SCPH_OFFSET)) + (((spi->mode & SPI_CPHA) ? 1 : 0) << SPI_SCPH_OFFSET) | + (((spi->mode & SPI_LOOP) ? 1 : 0) << SPI_SRL_OFFSET)) | (chip->tmode << SPI_TMOD_OFFSET); /* |