spi: sirf: Avoid duplicate code in various bits_per_word cases

Trivial cleanup to avoid duplicate code in various bits_per_word cases.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

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))