spi: dw: Fix detecting FIFO depth

[pandora-kernel.git] / drivers / spi / spi-dw.c

diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c
index 9eddaab..bbdf0cf 100644 (file)
--- a/drivers/spi/spi-dw.c
+++ b/drivers/spi/spi-dw.c
@@ -786,13 +786,13 @@ static void spi_hw_init(struct dw_spi *dws)
         */
        if (!dws->fifo_len) {
                u32 fifo;
-               for (fifo = 2; fifo <= 257; fifo++) {
+               for (fifo = 2; fifo <= 256; fifo++) {
                        dw_writew(dws, DW_SPI_TXFLTR, fifo);
                        if (fifo != dw_readw(dws, DW_SPI_TXFLTR))
                                break;
                }
 
-               dws->fifo_len = (fifo == 257) ? 0 : fifo;
+               dws->fifo_len = (fifo == 2) ? 0 : fifo - 1;
                dw_writew(dws, DW_SPI_TXFLTR, 0);
        }
 }