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authorStephen Warren <swarren@wwwdotorg.org>2013-05-22 06:36:35 +0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2013-05-29 23:48:17 +0400
commit24778be20f87d5aadb19624fc768b3159fa43efc (patch)
tree05124574b6d331f34938bbae09d4014fde7dca76 /drivers/spi/spi-davinci.c
parent2922a8de996956893bb98e4aa91be9774c958336 (diff)
downloadlinux-24778be20f87d5aadb19624fc768b3159fa43efc.tar.xz
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-davinci.c')
-rw-r--r--drivers/spi/spi-davinci.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index 50b13c9b1ab6..b141ef221b14 100644
--- a/drivers/spi/spi-davinci.c
+++ b/drivers/spi/spi-davinci.c
@@ -299,16 +299,15 @@ static int davinci_spi_setup_transfer(struct spi_device *spi,
* Assign function pointer to appropriate transfer method
* 8bit, 16bit or 32bit transfer
*/
- if (bits_per_word <= 8 && bits_per_word >= 2) {
+ if (bits_per_word <= 8) {
dspi->get_rx = davinci_spi_rx_buf_u8;
dspi->get_tx = davinci_spi_tx_buf_u8;
dspi->bytes_per_word[spi->chip_select] = 1;
- } else if (bits_per_word <= 16 && bits_per_word >= 2) {
+ } else {
dspi->get_rx = davinci_spi_rx_buf_u16;
dspi->get_tx = davinci_spi_tx_buf_u16;
dspi->bytes_per_word[spi->chip_select] = 2;
- } else
- return -EINVAL;
+ }
if (!hz)
hz = spi->max_speed_hz;
@@ -933,6 +932,7 @@ static int davinci_spi_probe(struct platform_device *pdev)
master->dev.of_node = pdev->dev.of_node;
master->bus_num = pdev->id;
master->num_chipselect = pdata->num_chipselect;
+ master->bits_per_word_mask = SPI_BPW_RANGE_MASK(2, 16);
master->setup = davinci_spi_setup;
dspi->bitbang.chipselect = davinci_spi_chipselect;