xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

spi: convert drivers to use bits_per_word_mask

Browse Source 
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>
This commit is contained in:
Stephen Warren
2013-05-21 20:36:35 -06:00
committed by Mark Brown
parent 2922a8de99
commit 24778be20f
28 changed files with 46 additions and 280 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/spi/spi-ppc4xx.c
View File

@@ -190,12 +190,6 @@ static int spi_ppc4xx_setupxfer(struct spi_device *spi, struct spi_transfer *t)
speed = min(t->speed_hz, spi->max_speed_hz);
}
if (bits_per_word != 8) {
dev_err(&spi->dev, "invalid bits-per-word (%d)\n",
bits_per_word);
return -EINVAL;
}
if (!speed || (speed > spi->max_speed_hz)) {
dev_err(&spi->dev, "invalid speed_hz (%d)\n", speed);
return -EINVAL;
@@ -229,12 +223,6 @@ static int spi_ppc4xx_setup(struct spi_device *spi)
{
struct spi_ppc4xx_cs *cs = spi->controller_state;
if (spi->bits_per_word != 8) {
dev_err(&spi->dev, "invalid bits-per-word (%d)\n",
spi->bits_per_word);
return -EINVAL;
}
if (!spi->max_speed_hz) {
dev_err(&spi->dev, "invalid max_speed_hz (must be non-zero)\n");
return -EINVAL;
@@ -465,6 +453,7 @@ static int spi_ppc4xx_of_probe(struct platform_device *op)
bbp->use_dma = 0;
bbp->master->setup = spi_ppc4xx_setup;
bbp->master->cleanup = spi_ppc4xx_cleanup;
bbp->master->bits_per_word_mask = SPI_BPW_MASK(8);
/* the spi->mode bits understood by this driver: */
bbp->master->mode_bits =