BWM 配置

Device Drivers
    Misc devices--->
        [*] BWM driver for ArtInChip SoC

bwm: bwm@184ff000 {
        compatible ="artinchip,aic-bwm";
        reg = <0x184ff000 0x1000>;
        interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
        clocks = <&cmu CLK_BWM>;
        resets = <&rst RESET_BWM>;
        status ="okay";
};