linux/Documentation/devicetree/bindings/timer/renesas,tpu.yaml
Geert Uytterhoeven d1dd216738 dt-bindings: timer: renesas,tpu: Convert to json-schema
Convert the Renesas H8/300 Timer Pulse Unit Device Tree binding
documentation to json-schema.

Correct clock-names, as "peripheral_clk" is the name of the supplier,
and all users use "fck".

Note that there are two different bindings for the TPU, both using
"renesas,tpu": this one for using the TPU as a clock source (used on
H8/300), and a second use for using the TPU as a PWM controller (used on
ARM).  To avoid conflicts, both bindings are marked with the appropriate
"select" logic, to check for the absence respectively presence of the
"#pwm-cells" property.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: https://lore.kernel.org/r/1c33e62c3a74979c3ca9580176e6cf89384caea9.1620648868.git.geert+renesas@glider.be
Signed-off-by: Rob Herring <robh@kernel.org>
2021-05-12 21:35:14 -05:00

57 lines
1.0 KiB
YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/timer/renesas,tpu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Renesas H8/300 Timer Pulse Unit
maintainers:
- Yoshinori Sato <ysato@users.sourceforge.jp>
description:
The TPU is a 16bit timer/counter with configurable clock inputs and
programmable compare match.
This implementation supports only cascade mode.
select:
properties:
compatible:
contains:
const: renesas,tpu
'#pwm-cells': false
required:
- compatible
properties:
compatible:
const: renesas,tpu
reg:
items:
- description: First channel
- description: Second channel
clocks:
maxItems: 1
clock-names:
const: fck
required:
- compatible
- reg
- clocks
- clock-names
additionalProperties: false
examples:
- |
tpu: tpu@ffffe0 {
compatible = "renesas,tpu";
reg = <0xffffe0 16>, <0xfffff0 12>;
clocks = <&pclk>;
clock-names = "fck";
};