spi/bitbang: Drop empty setup() functions

Now that the bitbang core does not require a setup() function we can
drop the check in the altera, nuc900 and xilinx drivers.

Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 0 insertions, 16 deletions

diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c
index 09a942852593..fb56fcfdf65e 100644
--- a/drivers/spi/spi-xilinx.c
+++ b/drivers/spi/spi-xilinx.c
@@ -233,21 +233,6 @@ static int xilinx_spi_setup_transfer(struct spi_device *spi,
         return 0;
 }
 
-static int xilinx_spi_setup(struct spi_device *spi)
-{
-        /* always return 0, we can not check the number of bits.
-         * There are cases when SPI setup is called before any driver is
-         * there, in that case the SPI core defaults to 8 bits, which we
-         * do not support in some cases. But if we return an error, the
-         * SPI device would not be registered and no driver can get hold of it
-         * When the driver is there, it will call SPI setup again with the
-         * correct number of bits per transfer.
-         * If a driver setups with the wrong bit number, it will fail when
-         * it tries to do a transfer
-         */
-        return 0;
-}
-
 static void xilinx_spi_fill_tx_fifo(struct xilinx_spi *xspi)
 {
         u8 sr;
@@ -375,7 +360,6 @@ struct spi_master *xilinx_spi_init(struct device *dev, struct resource *mem,
         xspi->bitbang.chipselect = xilinx_spi_chipselect;
         xspi->bitbang.setup_transfer = xilinx_spi_setup_transfer;
         xspi->bitbang.txrx_bufs = xilinx_spi_txrx_bufs;
-        xspi->bitbang.master->setup = xilinx_spi_setup;
         init_completion(&xspi->done);
 
         if (!request_mem_region(mem->start, resource_size(mem),