xref: /freebsd/sys/contrib/device-tree/Bindings/pwm/img-pwm.txt (revision 7fdf597e96a02165cfe22ff357b857d5fa15ed8a)
1*Imagination Technologies PWM DAC driver
2
3Required properties:
4  - compatible: Should be "img,pistachio-pwm"
5  - reg: Should contain physical base address and length of pwm registers.
6  - clocks: Must contain an entry for each entry in clock-names.
7	See ../clock/clock-bindings.txt for details.
8  - clock-names: Must include the following entries.
9    - pwm: PWM operating clock.
10    - sys: PWM system interface clock.
11  - #pwm-cells: Should be 2. See pwm.yaml in this directory for the
12	description of the cells format.
13  - img,cr-periph: Must contain a phandle to the peripheral control
14	syscon node which contains PWM control registers.
15
16Example:
17	pwm: pwm@18101300 {
18		compatible = "img,pistachio-pwm";
19		reg = <0x18101300 0x100>;
20		clocks = <&pwm_clk>, <&system_clk>;
21		clock-names = "pwm", "sys";
22		#pwm-cells = <2>;
23		img,cr-periph = <&cr_periph>;
24	};
25