Commits
Vince Bridgers committed 19936942a1a
net: libphy: Add stubs to hook IEEE MMD Register reads and writes The Micrel ksz9021 PHY does not support standard IEEE standard MMD extended register access, therefore requires stubs to fail the read register method and do nothing for the write register method when libphy attempts to read and/or configure Energy Efficient Ethernet features in PHYS that do support those features. This problem was observed on an Altera Cyclone V SOC development kit that uses the Synopsys EMAC and the Micrel ksz9021 PHY. This patch was tested on the same board, and Energy Efficient Ethernet is now disabled as expected since the Micrel PHY does not support that feature. Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>