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authorAxel Lin <axel.lin@ingics.com>2014-01-17 18:00:42 +0800
committerMark Brown <broonie@linaro.org>2014-01-17 15:55:54 +0000
commit463654cec26466a03615974444d6900f1cd0eeb9 (patch)
tree85e6ce1653cf249b478749a4abfd77df0e2722e1 /drivers/spi
parent15e0964dc2a097de3cf518badf2237b6b6adf7fe (diff)
downloadop-kernel-dev-463654cec26466a03615974444d6900f1cd0eeb9.zip
op-kernel-dev-463654cec26466a03615974444d6900f1cd0eeb9.tar.gz
spi: sc18is602: Convert to use bits_per_word_mask
Since commit 543bb25 "spi: add ability to validate xfer->bits_per_word in SPI core", the driver can set bits_per_word_mask for the master then the SPI core will reject transfers that attempt to use an unsupported bits_per_word value. So we can remove the bits_per_word checking in sc18is602_check_transfer() and let SPI core handle the checking. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-sc18is602.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/spi/spi-sc18is602.c b/drivers/spi/spi-sc18is602.c
index c1a01d1..c981d21 100644
--- a/drivers/spi/spi-sc18is602.c
+++ b/drivers/spi/spi-sc18is602.c
@@ -183,18 +183,11 @@ static int sc18is602_setup_transfer(struct sc18is602 *hw, u32 hz, u8 mode)
static int sc18is602_check_transfer(struct spi_device *spi,
struct spi_transfer *t, int tlen)
{
- int bpw;
uint32_t hz;
if (t && t->len + tlen > SC18IS602_BUFSIZ)
return -EINVAL;
- bpw = spi->bits_per_word;
- if (t && t->bits_per_word)
- bpw = t->bits_per_word;
- if (bpw != 8)
- return -EINVAL;
-
hz = spi->max_speed_hz;
if (t && t->speed_hz)
hz = t->speed_hz;
@@ -315,6 +308,7 @@ static int sc18is602_probe(struct i2c_client *client,
}
master->bus_num = client->adapter->nr;
master->mode_bits = SPI_CPHA | SPI_CPOL | SPI_LSB_FIRST;
+ master->bits_per_word_mask = SPI_BPW_MASK(8);
master->setup = sc18is602_setup;
master->transfer_one_message = sc18is602_transfer_one;
master->dev.of_node = np;
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