TI SOC EHRPWM based PWM controller Required properties: - compatible: Must be "ti,-ehrpwm". for am33xx - compatible = "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm"; for am4372 - compatible = "ti,am4372-ehrpwm", "ti-am3352-ehrpwm", "ti,am33xx-ehrpwm"; for am654 - compatible = "ti,am654-ehrpwm", "ti-am3352-ehrpwm"; for da850 - compatible = "ti,da850-ehrpwm", "ti-am3352-ehrpwm", "ti,am33xx-ehrpwm"; for dra746 - compatible = "ti,dra746-ehrpwm", "ti-am3352-ehrpwm"; - #pwm-cells: should be 3. See pwm.txt in this directory for a description of the cells format. The only third cell flag supported by this binding is PWM_POLARITY_INVERTED. - reg: physical base address and size of the registers map. Optional properties: - clocks: Handle to the PWM's time-base and functional clock. - clock-names: Must be set to "tbclk" and "fck". Example: ehrpwm0: pwm@48300200 { /* EHRPWM on am33xx */ compatible = "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm"; #pwm-cells = <3>; reg = <0x48300200 0x100>; clocks = <&ehrpwm0_tbclk>, <&l4ls_gclk>; clock-names = "tbclk", "fck"; }; ehrpwm0: pwm@48300200 { /* EHRPWM on am4372 */ compatible = "ti,am4372-ehrpwm", "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm"; #pwm-cells = <3>; reg = <0x48300200 0x80>; clocks = <&ehrpwm0_tbclk>, <&l4ls_gclk>; clock-names = "tbclk", "fck"; ti,hwmods = "ehrpwm0"; }; ehrpwm0: pwm@1f00000 { /* EHRPWM on da850 */ compatible = "ti,da850-ehrpwm", "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm"; #pwm-cells = <3>; reg = <0x1f00000 0x2000>; }; ehrpwm0: pwm@4843e200 { /* EHRPWM on dra746 */ compatible = "ti,dra746-ehrpwm", "ti,am3352-ehrpwm"; #pwm-cells = <3>; reg = <0x4843e200 0x80>; clocks = <&ehrpwm0_tbclk>, <&l4_root_clk_div>; clock-names = "tbclk", "fck"; };