diff options
| author | Alexander Shiyan <shc_work@mail.ru> | 2013-08-19 15:39:21 +0400 |
|---|---|---|
| committer | Max Krummenacher <max.krummenacher@toradex.com> | 2015-06-01 13:54:39 +0200 |
| commit | 69fb40b4232288f7e38aac71be822f79cbbddd8d (patch) | |
| tree | e2c83a31e50661e29b3ad16307ca06a9c41d6a30 | |
| parent | 9595378c47ef52c4a345ee2c7f44b45887773564 (diff) | |
can: mcp251x: Allow tuning SPI mode and limit maximal SPI speed
Patch allow to use different mode settings for SPI (MODE3 for example)
and limit maximal speed according to IC datasheet.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
(cherry picked from commit b1ef05a5a20afe50d4188a5b59579bd140758cf0)
| -rw-r--r-- | drivers/net/can/mcp251x.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/can/mcp251x.c b/drivers/net/can/mcp251x.c index ec84ce163608..fe7dd696957e 100644 --- a/drivers/net/can/mcp251x.c +++ b/drivers/net/can/mcp251x.c @@ -1082,7 +1082,11 @@ static int mcp251x_can_probe(struct spi_device *spi) SET_NETDEV_DEV(net, &spi->dev); /* Configure the SPI bus */ - spi->mode = SPI_MODE_0; + spi->mode = spi->mode ? : SPI_MODE_0; + if (mcp251x_is_2510(spi)) + spi->max_speed_hz = spi->max_speed_hz ? : 5 * 1000 * 1000; + else + spi->max_speed_hz = spi->max_speed_hz ? : 10 * 1000 * 1000; spi->bits_per_word = 8; spi_setup(spi); |