diff options
Diffstat (limited to 'drivers/spi/spi_bfin5xx.c')
| -rw-r--r-- | drivers/spi/spi_bfin5xx.c | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index f014cc21e813..73e24ef5a2f9 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -169,7 +169,7 @@ static int bfin_spi_flush(struct driver_data *drv_data) unsigned long limit = loops_per_jiffy << 1; /* wait for stop and clear stat */ - while (!(read_STAT(drv_data) & BIT_STAT_SPIF) && limit--) + while (!(read_STAT(drv_data) & BIT_STAT_SPIF) && --limit) cpu_relax(); write_STAT(drv_data, BIT_STAT_CLR); @@ -803,7 +803,7 @@ static void bfin_spi_pump_transfers(unsigned long data) drv_data->rx, drv_data->len_in_bytes); /* invalidate caches, if needed */ - if (bfin_addr_dcachable((unsigned long) drv_data->rx)) + if (bfin_addr_dcacheable((unsigned long) drv_data->rx)) invalidate_dcache_range((unsigned long) drv_data->rx, (unsigned long) (drv_data->rx + drv_data->len_in_bytes)); @@ -816,7 +816,7 @@ static void bfin_spi_pump_transfers(unsigned long data) dev_dbg(&drv_data->pdev->dev, "doing DMA out.\n"); /* flush caches, if needed */ - if (bfin_addr_dcachable((unsigned long) drv_data->tx)) + if (bfin_addr_dcacheable((unsigned long) drv_data->tx)) flush_dcache_range((unsigned long) drv_data->tx, (unsigned long) (drv_data->tx + drv_data->len_in_bytes)); @@ -1010,16 +1010,6 @@ static int bfin_spi_setup(struct spi_device *spi) struct driver_data *drv_data = spi_master_get_devdata(spi->master); int ret; - /* Abort device setup if requested features are not supported */ - if (spi->mode & ~(SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST)) { - dev_err(&spi->dev, "requested mode not fully supported\n"); - return -EINVAL; - } - - /* Zero (the default) here means 8 bits */ - if (!spi->bits_per_word) - spi->bits_per_word = 8; - if (spi->bits_per_word != 8 && spi->bits_per_word != 16) return -EINVAL; @@ -1287,6 +1277,9 @@ static int __init bfin_spi_probe(struct platform_device *pdev) drv_data->pdev = pdev; drv_data->pin_req = platform_info->pin_req; + /* the spi->mode bits supported by this driver: */ + master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST; + master->bus_num = pdev->id; master->num_chipselect = platform_info->num_chipselect; master->cleanup = bfin_spi_cleanup; |