net: phy: restore mdio regs in the iproc mdio driver
The mii management register in iproc mdio block does not have a retention register so it is lost on suspend. Save and restore value of register while resuming from suspend. Fixes: bb1a6197 ("net: phy: Initialize mdio clock at probe function") Signed-off-by: Arun Parameswaran <arun.parameswaran@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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