1Binding for an external clock signal driven by a PWM pin. 2 3This binding uses the common clock binding[1] and the common PWM binding[2]. 4 5[1] Documentation/devicetree/bindings/clock/clock-bindings.txt 6[2] Documentation/devicetree/bindings/pwm/pwm.txt 7 8Required properties: 9- compatible : shall be "pwm-clock". 10- #clock-cells : from common clock binding; shall be set to 0. 11- pwms : from common PWM binding; this determines the clock frequency 12 via the period given in the PWM specifier. 13 14Optional properties: 15- clock-output-names : From common clock binding. 16- clock-frequency : Exact output frequency, in case the PWM period 17 is not exact but was rounded to nanoseconds. 18 19Example: 20 clock { 21 compatible = "pwm-clock"; 22 #clock-cells = <0>; 23 clock-frequency = <25000000>; 24 clock-output-names = "mipi_mclk"; 25 pwms = <&pwm2 0 40>; /* 1 / 40 ns = 25 MHz */ 26 }; 27