From: Alexandru Ardelean <alexandru.ardelean@xxxxxxxxxx> Date: Mon, 16 Sep 2019 10:35:24 +0300 > This changeset proposes a new control for PHY tunable to control Energy > Detect Power Down. > > The `phy_tunable_id` has been named `ETHTOOL_PHY_EDPD` since it looks like > this feature is common across other PHYs (like EEE), and defining > `ETHTOOL_PHY_ENERGY_DETECT_POWER_DOWN` seems too long. > > The way EDPD works, is that the RX block is put to a lower power mode, > except for link-pulse detection circuits. The TX block is also put to low > power mode, but the PHY wakes-up periodically to send link pulses, to avoid > lock-ups in case the other side is also in EDPD mode. > > Currently, there are 2 PHY drivers that look like they could use this new > PHY tunable feature: the `adin` && `micrel` PHYs. > > This series updates only the `adin` PHY driver to support this new feature, > as this chip has been tested. A change for `micrel` can be proposed after a > discussion of the PHY-tunable API is resolved. Series applied.
