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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/mfd/st,stm32-timers.yaml | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/mfd/st,stm32-timers.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/mfd/st,stm32-timers.yaml | 161 |
1 files changed, 161 insertions, 0 deletions
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 000000000..f212fc6e1 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/st,stm32-timers.yaml @@ -0,0 +1,161 @@ +# 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 outputs 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@st.com> + - Fabrice Gasnier <fabrice.gasnier@st.com> + +properties: + compatible: + const: st,stm32-timers + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: int + + reset: + maxItems: 1 + + dmas: + minItems: 1 + maxItems: 7 + + dma-names: + items: + enum: [ ch1, ch2, ch3, ch4, up, trig, com ] + minItems: 1 + maxItems: 7 + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + pwm: + type: object + + properties: + compatible: + const: st,stm32-pwm + + "#pwm-cells": + const: 3 + + st,breakinput: + description: + One or two <index level filter> to describe break input + configurations. + $ref: /schemas/types.yaml#/definitions/uint32-matrix + items: + items: + - description: | + "index" indicates on which break input (0 or 1) the + configuration should be applied. + enum: [0, 1] + - description: | + "level" gives the active level (0=low or 1=high) of the + input signal for this configuration + enum: [0, 1] + - description: | + "filter" gives the filtering value (up to 15) to be applied. + maximum: 15 + minItems: 1 + maxItems: 2 + + required: + - "#pwm-cells" + - compatible + +patternProperties: + "^timer@[0-9]+$": + type: object + + properties: + compatible: + enum: + - st,stm32-timer-trigger + - st,stm32h7-timer-trigger + + reg: + description: Identify trigger hardware block. + items: + minimum: 0 + maximum: 16 + + required: + - compatible + - reg + + counter: + type: object + + properties: + compatible: + const: st,stm32-timer-counter + + required: + - compatible + +required: + - "#address-cells" + - "#size-cells" + - compatible + - reg + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/stm32mp1-clks.h> + timers2: timers@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"; + }; + }; + +... |