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authorStephen Warren <swarren@wwwdotorg.org>2013-05-21 20:36:35 -0600
committerMark Brown <broonie@opensource.wolfsonmicro.com>2013-05-29 20:48:17 +0100
commit24778be20f87d5aadb19624fc768b3159fa43efc (patch)
tree05124574b6d331f34938bbae09d4014fde7dca76 /drivers/spi/spi-xilinx.c
parent2922a8de996956893bb98e4aa91be9774c958336 (diff)
downloadlinux-24778be20f87d5aadb19624fc768b3159fa43efc.tar.gz
spi: convert drivers to use bits_per_word_mask
Fill in the recently added spi_master.bits_per_word_mask field in as
many drivers as possible. Make related cleanups, such as removing any
redundant error-checking, or empty setup callbacks.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/spi/spi-xilinx.c')
-rw-r--r--drivers/spi/spi-xilinx.c16
1 files changed, 0 insertions, 16 deletions
diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c
index e1d769607425..f321bf95d7c3 100644
--- a/drivers/spi/spi-xilinx.c
+++ b/drivers/spi/spi-xilinx.c
@@ -232,21 +232,6 @@ 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;
@@ -377,7 +362,6 @@ 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),