Messages in this thread Patch in this message |  | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 5.4 210/350] spi: dw: Fix Designware SPI loopback | Date | Tue, 10 Dec 2019 16:05:15 -0500 |
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From: Thor Thayer <thor.thayer@linux.intel.com>
[ Upstream commit 1403cfa69d310781f9548951c97725c67ffcf613 ]
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> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/spi/spi-dw.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c index 9a49e073e8b73..076652d3d051e 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); /* -- 2.20.1
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