*Imagination Technologies PWM DAC driver Required properties: - compatible: Should be "img,pistachio-pwm" - reg: Should contain physical base address and length of pwm registers. - clocks: Must contain an entry for each entry in clock-names. See ../clock/clock-bindings.txt for details. - clock-names: Must include the following entries. - pwm: PWM operating clock. - sys: PWM system interface clock. - #pwm-cells: Should be 2. See pwm.yaml in this directory for the description of the cells format. - img,cr-periph: Must contain a phandle to the peripheral control syscon node which contains PWM control registers. Example: pwm: pwm@18101300 { compatible = "img,pistachio-pwm"; reg = <0x18101300 0x100>; clocks = <&pwm_clk>, <&system_clk>; clock-names = "pwm", "sys"; #pwm-cells = <2>; img,cr-periph = <&cr_periph>; };