rt-thread/components/drivers/clk/Kconfig

menuconfig RT_USING_CLK
    bool "Using Common Clock Framework (CLK)"
    depends on RT_USING_DM
    select RT_USING_ADT_REF
    default y
    help
      Enable the common clock framework so SoC clock providers can register
      themselves and consumers can obtain `struct rt_clk` handles to manage
      gate, mux and divider trees. This is required by most complex drivers
      (MMC, Ethernet, display) because they explicitly prepare and enable their
      input clocks before accessing hardware. The framework relies on the DM
      bus and device tree clock references, so disable it only on the smallest
      MCUs where every peripheral runs off the same fixed clock and no driver
      ever calls into the clock API.

config RT_CLK_SCMI
    bool "Clock driver controlled via SCMI interface"
    depends on RT_USING_CLK
    depends on RT_FIRMWARE_ARM_SCMI
    default n

if RT_USING_CLK
    osource "$(SOC_DM_CLK_DIR)/Kconfig"
endif