mrf24j40: remove spi settings overwrite

This patch removes spi settings while mrf24j40 probing. These settings
cannot be overwrite while device probing where spi controller should be
already configured. These settings need to be setup by device tree or
platform data.

Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

diff --git a/drivers/net/ieee802154/mrf24j40.c b/drivers/net/ieee802154/mrf24j40.c
index de63cba..41d9f57 100644 (file)
--- a/drivers/net/ieee802154/mrf24j40.c
+++ b/drivers/net/ieee802154/mrf24j40.c
@@ -746,9 +746,11 @@ static int mrf24j40_probe(struct spi_device *spi)
        if (!devrec->buf)
                goto err_register_device;
 
-       spi->mode = SPI_MODE_0; /* TODO: Is this appropriate for right here? */
-       if (spi->max_speed_hz > MAX_SPI_SPEED_HZ)
-               spi->max_speed_hz = MAX_SPI_SPEED_HZ;
+       if (spi->max_speed_hz > MAX_SPI_SPEED_HZ) {
+               dev_warn(&spi->dev, "spi clock above possible maximum: %d",
+                        MAX_SPI_SPEED_HZ);
+               return -EINVAL;
+       }
 
        mutex_init(&devrec->buffer_mutex);
        init_completion(&devrec->tx_complete);