Quoting Luo Jie (2023-08-01 01:53:50) > Support the clock controller where the HW register is > accessed by MDIO bus, the spin lock can't be used because > of sleep during the MDIO operation. > > Add the flag CLK_ENABLE_MUTEX_LOCK to hint clock framework > to use mutex lock instead of the spin lock. Why can't you enable the MDIO bus clk in .prepare()?