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authorMark Brown <broonie@linaro.org>2013-08-09 17:26:37 +0100
committerMark Brown <broonie@linaro.org>2013-08-09 17:32:10 +0100
commit30af9b558a56200bda5febd140d5b826581d1f15 (patch)
tree03a62c66afb5cadc4ec35f388cbfa4e3194c0344 /drivers
parent52ade736215fb4421a6dc2b6900703a6fadba9e9 (diff)
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/spi/spi-altera.c12
-rw-r--r--drivers/spi/spi-nuc900.c13
-rw-r--r--drivers/spi/spi-xilinx.c16
3 files changed, 0 insertions, 41 deletions
diff --git a/drivers/spi/spi-altera.c b/drivers/spi/spi-altera.c
index 81b9adb6e766..8a6bb37910da 100644
--- a/drivers/spi/spi-altera.c
+++ b/drivers/spi/spi-altera.c
@@ -103,16 +103,6 @@ static void altera_spi_chipsel(struct spi_device *spi, int value)
}
}
-static int altera_spi_setupxfer(struct spi_device *spi, struct spi_transfer *t)
-{
- return 0;
-}
-
-static int altera_spi_setup(struct spi_device *spi)
-{
- return 0;
-}
-
static inline unsigned int hw_txbyte(struct altera_spi *hw, int count)
{
if (hw->tx) {
@@ -231,7 +221,6 @@ static int altera_spi_probe(struct platform_device *pdev)
master->bus_num = pdev->id;
master->num_chipselect = 16;
master->mode_bits = SPI_CS_HIGH;
- master->setup = altera_spi_setup;
hw = spi_master_get_devdata(master);
platform_set_drvdata(pdev, hw);
@@ -240,7 +229,6 @@ static int altera_spi_probe(struct platform_device *pdev)
hw->bitbang.master = spi_master_get(master);
if (!hw->bitbang.master)
return err;
- hw->bitbang.setup_transfer = altera_spi_setupxfer;
hw->bitbang.chipselect = altera_spi_chipsel;
hw->bitbang.txrx_bufs = altera_spi_txrx;
diff --git a/drivers/spi/spi-nuc900.c b/drivers/spi/spi-nuc900.c
index 150d85453c27..2ad3d74ac021 100644
--- a/drivers/spi/spi-nuc900.c
+++ b/drivers/spi/spi-nuc900.c
@@ -174,17 +174,6 @@ static void nuc900_spi_gobusy(struct nuc900_spi *hw)
spin_unlock_irqrestore(&hw->lock, flags);
}
-static int nuc900_spi_setupxfer(struct spi_device *spi,
- struct spi_transfer *t)
-{
- return 0;
-}
-
-static int nuc900_spi_setup(struct spi_device *spi)
-{
- return 0;
-}
-
static inline unsigned int hw_txbyte(struct nuc900_spi *hw, int count)
{
return hw->tx ? hw->tx[count] : 0;
@@ -377,10 +366,8 @@ static int nuc900_spi_probe(struct platform_device *pdev)
master->num_chipselect = hw->pdata->num_cs;
master->bus_num = hw->pdata->bus_num;
hw->bitbang.master = hw->master;
- hw->bitbang.setup_transfer = nuc900_spi_setupxfer;
hw->bitbang.chipselect = nuc900_spi_chipsel;
hw->bitbang.txrx_bufs = nuc900_spi_txrx;
- hw->bitbang.master->setup = nuc900_spi_setup;
hw->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (hw->res == NULL) {
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),