net: fec: add phy-reset-gpios PROBE_DEFER check
[ Upstream commit
9269e5560b261eb9ee157497890dc0948db76cf8 ]
Many boards use i2c/spi expander gpio as phy-reset-gpios and these
gpios maybe registered after fec port, driver should check the return
value of .of_get_named_gpio().
Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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