Convert the STM32 timers binding to DT schema format using json-schema Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxx> --- .../devicetree/bindings/mfd/st,stm32-timers.yaml | 91 ++++++++++++++++++++++ .../devicetree/bindings/mfd/stm32-timers.txt | 73 ----------------- 2 files changed, 91 insertions(+), 73 deletions(-) create mode 100644 Documentation/devicetree/bindings/mfd/st,stm32-timers.yaml delete mode 100644 Documentation/devicetree/bindings/mfd/stm32-timers.txt diff --git a/Documentation/devicetree/bindings/mfd/st,stm32-timers.yaml b/Documentation/devicetree/bindings/mfd/st,stm32-timers.yaml new file mode 100644 index 000000000000..3f0a65fb2bc0 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/st,stm32-timers.yaml @@ -0,0 +1,91 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/st,stm32-timers.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: STMicroelectronics STM32 Timers bindings + +description: | + This hardware block 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. + +maintainers: + - Benjamin Gaignard <benjamin.gaignard@xxxxxx> + - Fabrice Gasnier <fabrice.gasnier@xxxxxx> + +allOf: + - $ref: "../pwm/st,stm32-pwm.yaml#" + - $ref: "../iio/timer/st,stm32-timer-trigger.yaml#" + - $ref: "../counter/st,stm32-timer-cnt.yaml#" + +properties: + compatible: + const: st,stm32-timers + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: int + + reset: + maxItems: 1 + + dmas: true + + dma-names: true + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + +required: + - "#address-cells" + - "#size-cells" + - compatible + - reg + - clocks + - clock-names + +examples: + - | + #include <dt-bindings/clock/stm32mp1-clks.h> + timers2: timer@40000000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "st,stm32-timers"; + reg = <0x40000000 0x400>; + clocks = <&rcc TIM2_K>; + clock-names = "int"; + dmas = <&dmamux1 18 0x400 0x1>, + <&dmamux1 19 0x400 0x1>, + <&dmamux1 20 0x400 0x1>, + <&dmamux1 21 0x400 0x1>, + <&dmamux1 22 0x400 0x1>; + dma-names = "ch1", "ch2", "ch3", "ch4", "up"; + pwm { + compatible = "st,stm32-pwm"; + #pwm-cells = <3>; + st,breakinput = <0 1 5>; + }; + timer@0 { + compatible = "st,stm32-timer-trigger"; + reg = <0>; + }; + counter { + compatible = "st,stm32-timer-counter"; + }; + }; + +... diff --git a/Documentation/devicetree/bindings/mfd/stm32-timers.txt b/Documentation/devicetree/bindings/mfd/stm32-timers.txt deleted file mode 100644 index 15c3b87f51d9..000000000000 --- a/Documentation/devicetree/bindings/mfd/stm32-timers.txt +++ /dev/null @@ -1,73 +0,0 @@ -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... - }; -- 2.15.0
