kernel/arch/arm64/boot/dts/mediatek/mt7622.dtsi
.. .. @@ -428,6 +428,7 @@ 428 428 pwm: pwm@11006000 { 429 429 compatible = "mediatek,mt7622-pwm"; 430 430 reg = <0 0x11006000 0 0x1000>; 431 + #pwm-cells = <2>;431 432 interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_LOW>; 432 433 clocks = <&topckgen CLK_TOP_PWM_SEL>, 433 434 <&pericfg CLK_PERI_PWM_PD>,