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Subject[PATCH 3.17 023/146] spi: dw-mid: respect 8 bit mode
Date
3.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

commit b41583e7299046abdc578c33f25ed83ee95b9b31 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/spi/spi-dw-mid.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- 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 d
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 d
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,



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