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Documentation / devicetree / bindings / pwm / pwm-tiehrpwm.txt




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Based on kernel version 4.13.3. Page generated on 2017-09-23 13:55 EST.

1	TI SOC EHRPWM based PWM controller
2	
3	Required properties:
4	- compatible: Must be "ti,<soc>-ehrpwm".
5	  for am33xx  - compatible = "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm";
6	  for am4372  - compatible = "ti,am4372-ehrpwm", "ti-am3352-ehrpwm", "ti,am33xx-ehrpwm";
7	  for da850   - compatible = "ti,da850-ehrpwm", "ti-am3352-ehrpwm", "ti,am33xx-ehrpwm";
8	  for dra746 - compatible = "ti,dra746-ehrpwm", "ti-am3352-ehrpwm";
9	- #pwm-cells: should be 3. See pwm.txt in this directory for a description of
10	  the cells format. The only third cell flag supported by this binding is
11	  PWM_POLARITY_INVERTED.
12	- reg: physical base address and size of the registers map.
13	
14	Optional properties:
15	- clocks: Handle to the PWM's time-base and functional clock.
16	- clock-names: Must be set to "tbclk" and "fck".
17	
18	Example:
19	
20	ehrpwm0: pwm@48300200 { /* EHRPWM on am33xx */
21		compatible = "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm";
22		#pwm-cells = <3>;
23		reg = <0x48300200 0x100>;
24		clocks = <&ehrpwm0_tbclk>, <&l4ls_gclk>;
25		clock-names = "tbclk", "fck";
26	};
27	
28	ehrpwm0: pwm@48300200 { /* EHRPWM on am4372 */
29		compatible = "ti,am4372-ehrpwm", "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm";
30		#pwm-cells = <3>;
31		reg = <0x48300200 0x80>;
32		clocks = <&ehrpwm0_tbclk>, <&l4ls_gclk>;
33		clock-names = "tbclk", "fck";
34		ti,hwmods = "ehrpwm0";
35	};
36	
37	ehrpwm0: pwm@1f00000 { /* EHRPWM on da850 */
38		compatible = "ti,da850-ehrpwm", "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm";
39		#pwm-cells = <3>;
40		reg = <0x1f00000 0x2000>;
41	};
42	
43	ehrpwm0: pwm@4843e200 { /* EHRPWM on dra746 */
44		compatible = "ti,dra746-ehrpwm", "ti,am3352-ehrpwm";
45		#pwm-cells = <3>;
46		reg = <0x4843e200 0x80>;
47		clocks = <&ehrpwm0_tbclk>, <&l4_root_clk_div>;
48		clock-names = "tbclk", "fck";
49	};
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