| From b41583e7299046abdc578c33f25ed83ee95b9b31 Mon Sep 17 00:00:00 2001 |
| From: Andy Shevchenko <andriy.shevchenko@linux.intel.com> |
| Date: Thu, 18 Sep 2014 20:08:51 +0300 |
| Subject: spi: dw-mid: respect 8 bit mode |
| |
| 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, |
