Hi Andre,
Looks good to me! My target doesn't have PHY on a regulator, so no test result for this one.
On 7/21/23 07:45, Andre Przywara wrote:
At the moment the sun4i EMAC driver relies on hardcoded CONFIG_MACPWR Kconfig symbols to enable potential PHY regulators. As we want to get rid of those, we need to find the regulator by chasing up the DT.
The sun4i-emac binding puts the PHY regulator into the MDIO node, which is the parent of the PHY device. U-Boot does not have (and does not need) an MDIO driver, so we need to chase down the regulator through the EMAC node: we follow the "phy-handle" property to find the PHY node, then go up to its parent, where we find the "phy-supply" link to the regulator. Let U-Boot find the associated regulator device, and put that into the private device struct, so we can find and enable the regulator at probe time, later.
Signed-off-by: Andre Przywara andre.przywara@arm.com
Reviewed-by: Sam Edwards CFSworks@gmail.com Thanks, Sam