Hi Florian > Some Ethernet PHYs may require that their clock, which typically drives > their logic to respond to reads on the MDIO bus be enabled before > issusing a MDIO bus scan. issuing > > We have a chicken and egg problem though which is that we cannot enable > a given Ethernet PHY's device clock until we have a phy_device instance > create and called the driver's probe function. This will not happen > unless we are successful in probing the PHY device, which requires its > clock(s) to be turned on. > > For DT based systems we can solve this by using of_clk_get() which > operates on a device_node reference, and make sure that all clocks > associaed with the node are enabled prior to doing any reads towards the associated Not fully looked at the code yet. Andrew