xref: /freebsd-src/sys/contrib/device-tree/Bindings/pwm/pwm-meson.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1*c66ec88fSEmmanuel VadotAmlogic Meson PWM Controller
2*c66ec88fSEmmanuel Vadot============================
3*c66ec88fSEmmanuel Vadot
4*c66ec88fSEmmanuel VadotRequired properties:
5*c66ec88fSEmmanuel Vadot- compatible: Shall contain "amlogic,meson8b-pwm"
6*c66ec88fSEmmanuel Vadot                         or "amlogic,meson-gxbb-pwm"
7*c66ec88fSEmmanuel Vadot                         or "amlogic,meson-gxbb-ao-pwm"
8*c66ec88fSEmmanuel Vadot                         or "amlogic,meson-axg-ee-pwm"
9*c66ec88fSEmmanuel Vadot                         or "amlogic,meson-axg-ao-pwm"
10*c66ec88fSEmmanuel Vadot                         or "amlogic,meson-g12a-ee-pwm"
11*c66ec88fSEmmanuel Vadot                         or "amlogic,meson-g12a-ao-pwm-ab"
12*c66ec88fSEmmanuel Vadot                         or "amlogic,meson-g12a-ao-pwm-cd"
13*c66ec88fSEmmanuel Vadot- #pwm-cells: Should be 3. See pwm.yaml in this directory for a description of
14*c66ec88fSEmmanuel Vadot  the cells format.
15*c66ec88fSEmmanuel Vadot
16*c66ec88fSEmmanuel VadotOptional properties:
17*c66ec88fSEmmanuel Vadot- clocks: Could contain one or two parents clocks phandle for each of the two
18*c66ec88fSEmmanuel Vadot  PWM channels.
19*c66ec88fSEmmanuel Vadot- clock-names: Could contain at least the "clkin0" and/or "clkin1" names.
20*c66ec88fSEmmanuel Vadot
21*c66ec88fSEmmanuel VadotExample:
22*c66ec88fSEmmanuel Vadot
23*c66ec88fSEmmanuel Vadot	pwm_ab: pwm@8550 {
24*c66ec88fSEmmanuel Vadot		compatible = "amlogic,meson-gxbb-pwm";
25*c66ec88fSEmmanuel Vadot		reg = <0x0 0x08550 0x0 0x10>;
26*c66ec88fSEmmanuel Vadot		#pwm-cells = <3>;
27*c66ec88fSEmmanuel Vadot		clocks = <&xtal>, <&xtal>;
28*c66ec88fSEmmanuel Vadot		clock-names = "clkin0", "clkin1";
29*c66ec88fSEmmanuel Vadot	}
30