diff options
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-sirf.c | 21 |
1 files changed, 6 insertions, 15 deletions
diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c index e430689c3837..632d2b5b821f 100644 --- a/drivers/spi/spi-sirf.c +++ b/drivers/spi/spi-sirf.c @@ -459,11 +459,6 @@ spi_sirfsoc_setup_transfer(struct spi_device *spi, struct spi_transfer *t) regval |= SIRFSOC_SPI_TRAN_DAT_FORMAT_8; sspi->rx_word = spi_sirfsoc_rx_word_u8; sspi->tx_word = spi_sirfsoc_tx_word_u8; - txfifo_ctrl = SIRFSOC_SPI_FIFO_THD(SIRFSOC_SPI_FIFO_SIZE / 2) | - SIRFSOC_SPI_FIFO_WIDTH_BYTE; - rxfifo_ctrl = SIRFSOC_SPI_FIFO_THD(SIRFSOC_SPI_FIFO_SIZE / 2) | - SIRFSOC_SPI_FIFO_WIDTH_BYTE; - sspi->word_width = 1; break; case 12: case 16: @@ -471,26 +466,22 @@ spi_sirfsoc_setup_transfer(struct spi_device *spi, struct spi_transfer *t) SIRFSOC_SPI_TRAN_DAT_FORMAT_16; sspi->rx_word = spi_sirfsoc_rx_word_u16; sspi->tx_word = spi_sirfsoc_tx_word_u16; - txfifo_ctrl = SIRFSOC_SPI_FIFO_THD(SIRFSOC_SPI_FIFO_SIZE / 2) | - SIRFSOC_SPI_FIFO_WIDTH_WORD; - rxfifo_ctrl = SIRFSOC_SPI_FIFO_THD(SIRFSOC_SPI_FIFO_SIZE / 2) | - SIRFSOC_SPI_FIFO_WIDTH_WORD; - sspi->word_width = 2; break; case 32: regval |= SIRFSOC_SPI_TRAN_DAT_FORMAT_32; sspi->rx_word = spi_sirfsoc_rx_word_u32; sspi->tx_word = spi_sirfsoc_tx_word_u32; - txfifo_ctrl = SIRFSOC_SPI_FIFO_THD(SIRFSOC_SPI_FIFO_SIZE / 2) | - SIRFSOC_SPI_FIFO_WIDTH_DWORD; - rxfifo_ctrl = SIRFSOC_SPI_FIFO_THD(SIRFSOC_SPI_FIFO_SIZE / 2) | - SIRFSOC_SPI_FIFO_WIDTH_DWORD; - sspi->word_width = 4; break; default: BUG(); } + sspi->word_width = DIV_ROUND_UP(bits_per_word, 8); + txfifo_ctrl = SIRFSOC_SPI_FIFO_THD(SIRFSOC_SPI_FIFO_SIZE / 2) | + sspi->word_width; + rxfifo_ctrl = SIRFSOC_SPI_FIFO_THD(SIRFSOC_SPI_FIFO_SIZE / 2) | + sspi->word_width; + if (!(spi->mode & SPI_CS_HIGH)) regval |= SIRFSOC_SPI_CS_IDLE_STAT; if (!(spi->mode & SPI_LSB_FIRST)) |
