On 8.08.2023 21:01, Bartosz Golaszewski wrote: > From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx> > > Device-tree bindings for MDIO define per-PHY reset-gpios as well as a > global reset-gpios property at the MDIO node level which controls all > devices on the bus. The latter is most likely a workaround for the > chicken-and-egg problem where we cannot read the ID of the PHY before > bringing it out of reset but we cannot bring it out of reset until we've > read its ID. > > I have proposed a comprehensive solution for this problem in 2020 but it > never got upstream. We do however have workaround in place which allows > us to hard-code the PHY id in the compatible property, thus skipping the > ID scanning. > > Let's make the device-tree for sa8775p-ride slightly more correct by > moving the reset-gpios property to the PHY node with its ID put into the > PHY node's compatible. > > Link: https://lore.kernel.org/all/20200622093744.13685-1-brgl@xxxxxxxx/ > Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx> > --- Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> Konrad
