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authorSascha Hauer <s.hauer@pengutronix.de>2019-12-19 05:46:54 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2019-12-19 05:46:54 +0100
commit574eed3f6fcf056aa4c9e46c4b5224e3f7844d8d (patch)
tree3fbe9ed379bc0d6c536860845e85a4ede4b36bbc /dts/Bindings/mfd/stm32-timers.txt
parent179dedbc6d85d7ea7c8013513b364a75f32943e8 (diff)
downloadbarebox-574eed3f6fcf056aa4c9e46c4b5224e3f7844d8d.tar.gz
barebox-574eed3f6fcf056aa4c9e46c4b5224e3f7844d8d.tar.xz
dts: update to v5.5-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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-STM32 Timers driver bindings
-
-This IP provides 3 types of timer along with PWM functionality:
-- advanced-control timers consist of a 16-bit auto-reload counter driven by a programmable
- prescaler, break input feature, PWM outputs and complementary PWM ouputs channels.
-- general-purpose timers consist of a 16-bit or 32-bit auto-reload counter driven by a
- programmable prescaler and PWM outputs.
-- basic timers consist of a 16-bit auto-reload counter driven by a programmable prescaler.
-
-Required parameters:
-- compatible: must be "st,stm32-timers"
-
-- reg: Physical base address and length of the controller's
- registers.
-- clock-names: Set to "int".
-- clocks: Phandle to the clock used by the timer module.
- For Clk properties, please refer to ../clock/clock-bindings.txt
-
-Optional parameters:
-- resets: Phandle to the parent reset controller.
- See ../reset/st,stm32-rcc.txt
-- dmas: List of phandle to dma channels that can be used for
- this timer instance. There may be up to 7 dma channels.
-- dma-names: List of dma names. Must match 'dmas' property. Valid
- names are: "ch1", "ch2", "ch3", "ch4", "up", "trig",
- "com".
-
-Optional subnodes:
-- pwm: See ../pwm/pwm-stm32.txt
-- timer: See ../iio/timer/stm32-timer-trigger.txt
-- counter: See ../counter/stm32-timer-cnt.txt
-
-Example:
- timers@40010000 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "st,stm32-timers";
- reg = <0x40010000 0x400>;
- clocks = <&rcc 0 160>;
- clock-names = "int";
-
- pwm {
- compatible = "st,stm32-pwm";
- pinctrl-0 = <&pwm1_pins>;
- pinctrl-names = "default";
- };
-
- timer@0 {
- compatible = "st,stm32-timer-trigger";
- reg = <0>;
- };
-
- counter {
- compatible = "st,stm32-timer-counter";
- pinctrl-names = "default";
- pinctrl-0 = <&tim1_in_pins>;
- };
- };
-
-Example with all dmas:
- timer@40010000 {
- ...
- dmas = <&dmamux1 11 0x400 0x0>,
- <&dmamux1 12 0x400 0x0>,
- <&dmamux1 13 0x400 0x0>,
- <&dmamux1 14 0x400 0x0>,
- <&dmamux1 15 0x400 0x0>,
- <&dmamux1 16 0x400 0x0>,
- <&dmamux1 17 0x400 0x0>;
- dma-names = "ch1", "ch2", "ch3", "ch4", "up", "trig", "com";
- ...
- child nodes...
- };