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1NXP PCA9685 16-channel 12-bit PWM LED controller2================================================3 4Required properties:5 - compatible: "nxp,pca9685-pwm"6 - #pwm-cells: Should be 2. See pwm.yaml in this directory for a description of7 the cells format.8 The index 16 is the ALLCALL channel, that sets all PWM channels at the same9 time.10 11Optional properties:12 - invert (bool): boolean to enable inverted logic13 - open-drain (bool): boolean to configure outputs with open-drain structure;14 if omitted use totem-pole structure15 16Example:17 18For LEDs that are directly connected to the PCA, the following setting is19applicable:20 21pca: pca@41 {22 compatible = "nxp,pca9685-pwm";23 #pwm-cells = <2>;24 reg = <0x41>;25 invert;26 open-drain;27};28