net: dsa: populate supported_interfaces member
Add a new DSA switch operation, phylink_get_interfaces, which should fill in which PHY_INTERFACE_MODE_* are supported by given port. Use this before phylink_create() to fill phylinks supported_interfaces member, allowing phylink to determine which PHY_INTERFACE_MODEs are supported. Signed-off-by: Marek Behún <kabel@kernel.org> [tweaked patch and description to add more complete support -- rmk] Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
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