TI SOC ECAP based APWM controller Required properties: - compatible: Must be "ti,<soc>-ecap". for am33xx - compatible = "ti,am3352-ecap", "ti,am33xx-ecap"; for am4372 - compatible = "ti,am4372-ecap", "ti,am3352-ecap", "ti,am33xx-ecap"; for da850 - compatible = "ti,da850-ecap", "ti,am3352-ecap", "ti,am33xx-ecap"; for dra746 - compatible = "ti,dra746-ecap", "ti,am3352-ecap"; for 66ak2g - compatible = "ti,k2g-ecap", "ti,am3352-ecap"; - #pwm-cells: should be 3. See pwm.txt in this directory for a description of the cells format. The PWM channel index ranges from 0 to 4. 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 ECAP's functional clock. - clock-names: Must be set to "fck". Example: ecap0: ecap@48300100 { /* ECAP on am33xx */ compatible = "ti,am3352-ecap", "ti,am33xx-ecap"; #pwm-cells = <3>; reg = <0x48300100 0x80>; clocks = <&l4ls_gclk>; clock-names = "fck"; }; ecap0: ecap@48300100 { /* ECAP on am4372 */ compatible = "ti,am4372-ecap", "ti,am3352-ecap", "ti,am33xx-ecap"; #pwm-cells = <3>; reg = <0x48300100 0x80>; ti,hwmods = "ecap0"; clocks = <&l4ls_gclk>; clock-names = "fck"; }; ecap0: ecap@1f06000 { /* ECAP on da850 */ compatible = "ti,da850-ecap", "ti,am3352-ecap", "ti,am33xx-ecap"; #pwm-cells = <3>; reg = <0x1f06000 0x80>; }; ecap0: ecap@4843e100 { compatible = "ti,dra746-ecap", "ti,am3352-ecap"; #pwm-cells = <3>; reg = <0x4843e100 0x80>; clocks = <&l4_root_clk_div>; clock-names = "fck"; };