* Sven Peter <sven@xxxxxxxxxxxxx> [210530 11:11]: > The problem with that approach is that to enable e.g. UART_0 we actually need > to enable its parents as well, e.g. the Apple Device Tree for the M1 has the > following clock topology: > > UART0 (0x23b700270), parent: UART_P > UART_P (0x23b700220), parent: SIO > SIO (0x23b7001c0), parent: n/a > > The offsets and the parent/child relationship for all of these three clocks > change between SoCs. If I now use the offset as the clock id I still need > to specify that if e.g. UART uses <&clk_controller 0x270> I first need > to enable 0x1c0 and then 0x220 and only then 0x270. Maybe take a look what I suggested on using assigned-clocks and related properties in the clock controller node. That might solve the issue in a generic way for other SoCs too. Regards, Tony
