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KS8851: Add soft reset at probe time

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Issue a full soft reset at probe time.

This was reported by Doong Ping of Micrel, but no explanation of why this
is necessary or what bug it is fixing. Add it as it does not seem to hurt
the current driver and ensures that the device is in a known state when we
start setting it up.

Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Dooks 2009-10-19 23:49:03 +00:00 committed by David S. Miller
parent 78abcb13dd
commit 57dada6819
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ks8851.c
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@ -1239,6 +1239,9 @@ static int __devinit ks8851_probe(struct spi_device *spi)
ndev->netdev_ops = &ks8851_netdev_ops;
ndev->irq = spi->irq;
/* issue a global soft reset to reset the device. */
ks8851_soft_reset(ks, GRR_GSR);
/* simple check for a valid chip being connected to the bus */
if ((ks8851_rdreg16(ks, KS_CIDER) & ~CIDER_REV_MASK) != CIDER_ID) {