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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2014-09-18 20:08:51 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-09-24 09:48:43 +0100 |
| commit | b41583e7299046abdc578c33f25ed83ee95b9b31 (patch) | |
| tree | 2f4face49ab56651f59845972c8d07cc2059d315 /drivers | |
| parent | 53288fe9bdc7e8a0265bbe9074f71f1a6c478008 (diff) | |
| download | linux-b41583e7299046abdc578c33f25ed83ee95b9b31.tar.gz linux-b41583e7299046abdc578c33f25ed83ee95b9b31.tar.bz2 linux-b41583e7299046abdc578c33f25ed83ee95b9b31.zip | |
spi: dw-mid: respect 8 bit mode
In case of 8 bit mode and DMA usage we end up with every second byte written as
0. We have to respect bits_per_word settings what this patch actually does.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/spi-dw-mid.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c index c4b9f6497d5b..f7f0ad285ae6 100644 --- a/drivers/spi/spi-dw-mid.c +++ b/drivers/spi/spi-dw-mid.c @@ -136,7 +136,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change) txconf.dst_addr = dws->dma_addr; txconf.dst_maxburst = LNW_DMA_MSIZE_16; txconf.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - txconf.dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; + txconf.dst_addr_width = dws->dma_width; txconf.device_fc = false; txchan->device->device_control(txchan, DMA_SLAVE_CONFIG, @@ -159,7 +159,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change) rxconf.src_addr = dws->dma_addr; rxconf.src_maxburst = LNW_DMA_MSIZE_16; rxconf.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - rxconf.src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; + rxconf.src_addr_width = dws->dma_width; rxconf.device_fc = false; rxchan->device->device_control(rxchan, DMA_SLAVE_CONFIG, |