Quoting Serge Semin (2022-09-29 15:53:57)
> Baikal-T1 CCU reference manual says that both xGMAC reference and xGMAC
> PTP clocks are generated by two different wrappers with the same constant
> divider thus each producing a 156.25 MHz signal. But for some reason both
> of these clock sources are gated by a single switch-flag in the CCU
> registers space - CCU_SYS_XGMAC_BASE.BIT(0). In order to make the clocks
> handled independently we need to define a shared parental gate so the base
> clock signal would be switched off only if both of the child-clocks are
> disabled.
>
> Note the ID is intentionally set to -2 since we are going to add a one
> more internal clock identifier in the next commit.
>
> Fixes: 353afa3a8d2e ("clk: Add Baikal-T1 CCU Dividers driver")
> Signed-off-by: Serge Semin <Sergey.Semin@xxxxxxxxxxxxxxxxxxxx>
>
> ---
Applied to clk-next
