linux/Documentation/devicetree/bindings/mfd/st,stm32-lptimer.yaml
Benjamin Gaignard b88091f5d8 dt-bindings: mfd: Convert stm32 low power timers bindings to json-schema
Convert the STM32 low power timers binding to DT schema format using json-schema

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2019-11-21 08:35:19 -06:00

121 lines
2.2 KiB
YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/st,stm32-lptimer.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: STMicroelectronics STM32 Low-Power Timers bindings
description: |
The STM32 Low-Power Timer (LPTIM) is a 16-bit timer that provides several
functions
- PWM output (with programmable prescaler, configurable polarity)
- Trigger source for STM32 ADC/DAC (LPTIM_OUT)
- Several counter modes:
- quadrature encoder to detect angular position and direction of rotary
elements, from IN1 and IN2 input signals.
- simple counter from IN1 input signal.
maintainers:
- Fabrice Gasnier <fabrice.gasnier@st.com>
properties:
compatible:
const: st,stm32-lptimer
reg:
maxItems: 1
clocks:
maxItems: 1
clock-names:
items:
- const: mux
"#address-cells":
const: 1
"#size-cells":
const: 0
pwm:
type: object
properties:
compatible:
const: st,stm32-pwm-lp
"#pwm-cells":
const: 3
required:
- "#pwm-cells"
- compatible
patternProperties:
"^trigger@[0-9]+$":
type: object
properties:
compatible:
const: st,stm32-lptimer-trigger
reg:
description: Identify trigger hardware block.
items:
minimum: 0
maximum: 2
required:
- compatible
- reg
counter:
type: object
properties:
compatible:
const: st,stm32-lptimer-counter
required:
- compatible
required:
- "#address-cells"
- "#size-cells"
- compatible
- reg
- clocks
- clock-names
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/stm32mp1-clks.h>
timer@40002400 {
compatible = "st,stm32-lptimer";
reg = <0x40002400 0x400>;
clocks = <&timer_clk>;
clock-names = "mux";
#address-cells = <1>;
#size-cells = <0>;
pwm {
compatible = "st,stm32-pwm-lp";
#pwm-cells = <3>;
};
trigger@0 {
compatible = "st,stm32-lptimer-trigger";
reg = <0>;
};
counter {
compatible = "st,stm32-lptimer-counter";
};
};
...