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path: root/drivers/spi/spi-dw.c
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Diffstat (limited to 'drivers/spi/spi-dw.c')
-rw-r--r--drivers/spi/spi-dw.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c
index 950bc50361b3..f3e4092cd8dc 100644
--- a/drivers/spi/spi-dw.c
+++ b/drivers/spi/spi-dw.c
@@ -315,7 +315,6 @@ static int dw_spi_transfer_one(struct spi_master *master,
{
struct dw_spi *dws = spi_master_get_devdata(master);
struct chip_data *chip = spi_get_ctldata(spi);
- u8 bits = 0;
u8 imask = 0;
u8 cs_change = 0;
u16 txlevel = 0;
@@ -357,9 +356,14 @@ static int dw_spi_transfer_one(struct spi_master *master,
}
}
if (transfer->bits_per_word) {
- bits = transfer->bits_per_word;
- dws->n_bytes = dws->dma_width = bits >> 3;
- cr0 = (bits - 1)
+ if (transfer->bits_per_word == 8) {
+ dws->n_bytes = 1;
+ dws->dma_width = 1;
+ } else if (transfer->bits_per_word == 16) {
+ dws->n_bytes = 2;
+ dws->dma_width = 2;
+ }
+ cr0 = (transfer->bits_per_word - 1)
| (chip->type << SPI_FRF_OFFSET)
| (spi->mode << SPI_MODE_OFFSET)
| (chip->tmode << SPI_TMOD_OFFSET);