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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>
hifive-unleashed-5.1
Alexander Shiyan 2013-08-19 15:39:21 +04:00 committed by Marc Kleine-Budde
parent ae5d589e5f
commit b1ef05a5a2
1 changed files with 5 additions and 1 deletions
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6
drivers/net/can/mcp251x.c
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@ -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);