1STM32 Timers driver bindings
2
3This IP provides 3 types of timer along with PWM functionality:
4- advanced-control timers consist of a 16-bit auto-reload counter driven by a programmable
5  prescaler, break input feature, PWM outputs and complementary PWM ouputs channels.
6- general-purpose timers consist of a 16-bit or 32-bit auto-reload counter driven by a
7  programmable prescaler and PWM outputs.
8- basic timers consist of a 16-bit auto-reload counter driven by a programmable prescaler.
9
10Required parameters:
11- compatible: must be "st,stm32-timers"
12
13- reg:			Physical base address and length of the controller's
14			registers.
15- clock-names:		Set to "int".
16- clocks: 		Phandle to the clock used by the timer module.
17			For Clk properties, please refer to ../clock/clock-bindings.txt
18
19Optional parameters:
20- resets:		Phandle to the parent reset controller.
21			See ../reset/st,stm32-rcc.txt
22- dmas:			List of phandle to dma channels that can be used for
23			this timer instance. There may be up to 7 dma channels.
24- dma-names:		List of dma names. Must match 'dmas' property. Valid
25			names are: "ch1", "ch2", "ch3", "ch4", "up", "trig",
26			"com".
27
28Optional subnodes:
29- pwm:			See ../pwm/pwm-stm32.txt
30- timer:		See ../iio/timer/stm32-timer-trigger.txt
31- counter:		See ../counter/stm32-timer-cnt.txt
32
33Example:
34	timers@40010000 {
35		#address-cells = <1>;
36		#size-cells = <0>;
37		compatible = "st,stm32-timers";
38		reg = <0x40010000 0x400>;
39		clocks = <&rcc 0 160>;
40		clock-names = "int";
41
42		pwm {
43			compatible = "st,stm32-pwm";
44			pinctrl-0	= <&pwm1_pins>;
45			pinctrl-names	= "default";
46		};
47
48		timer@0 {
49			compatible = "st,stm32-timer-trigger";
50			reg = <0>;
51		};
52
53		counter {
54			compatible = "st,stm32-timer-counter";
55			pinctrl-names = "default";
56			pinctrl-0 = <&tim1_in_pins>;
57		};
58	};
59
60Example with all dmas:
61	timer@40010000 {
62		...
63		dmas = <&dmamux1 11 0x400 0x0>,
64		       <&dmamux1 12 0x400 0x0>,
65		       <&dmamux1 13 0x400 0x0>,
66		       <&dmamux1 14 0x400 0x0>,
67		       <&dmamux1 15 0x400 0x0>,
68		       <&dmamux1 16 0x400 0x0>,
69		       <&dmamux1 17 0x400 0x0>;
70		dma-names = "ch1", "ch2", "ch3", "ch4", "up", "trig", "com";
71		...
72		child nodes...
73	};
74