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net: fec_mxc: rewrite fallback MDIO Bus allocation

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The code should only be executed if MDIO bus is not assigned.
Otherwise the already assigned / allocated bus will be overwritten.
Add condition check and simplify the code to make it more readable.

Signed-off-by: Markus Niebel <Markus.Niebel@ew.tq-group.com>
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Alexander Feilke <alexander.feilke@ew.tq-group.com>
This commit is contained in:
Markus Niebel 2025-11-21 18:34:45 +01:00 committed by Fabio Estevam
parent aafdd85694
commit fc199c481c
1 changed files with 9 additions and 5 deletions
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14
drivers/net/fec_mxc.c
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@ -1373,14 +1373,18 @@ static int fecmxc_probe(struct udevice *dev)
if (!bus)
bus = fec_get_miibus(dev, (ulong)priv->eth, dev_seq(dev));
#else
if (!bus) {
ulong regs = (ulong)priv->eth;
dm_mii_bus = false;
#ifdef CONFIG_FEC_MXC_MDIO_BASE
bus = fec_get_miibus(dev, (ulong)CONFIG_FEC_MXC_MDIO_BASE, dev_seq(dev));
#else
bus = fec_get_miibus(dev, (ulong)priv->eth, dev_seq(dev));
dm_mii_bus = false;
#if defined(CONFIG_FEC_MXC_MDIO_BASE)
regs = CONFIG_FEC_MXC_MDIO_BASE;
#endif
bus = fec_get_miibus(dev, regs, dev_seq(dev));
}
#endif /* CONFIG_DM_ETH_PHY */
if (!bus) {
ret = -ENOMEM;