1
linux/Documentation/devicetree/bindings/clock/cirrus,lochnagar.yaml
Krzysztof Kozlowski 354831f3a8 dt-bindings: clock: cirrus,lochnagar: add top-level constraints
Properties with variable number of items per each device are expected to
have widest constraints in top-level "properties:" block and further
customized (narrowed) in "if:then:".  Add missing top-level constraints
for clocks.  Drop also redundant assigned-clocks properties, because
core dtschema allows them if clocks are provided.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240818173014.122073-2-krzysztof.kozlowski@linaro.org
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2024-08-28 10:01:25 -07:00

79 lines
2.5 KiB
YAML

# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/cirrus,lochnagar.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Cirrus Logic Lochnagar Audio Development Board
maintainers:
- patches@opensource.cirrus.com
description: |
Lochnagar is an evaluation and development board for Cirrus Logic
Smart CODEC and Amp devices. It allows the connection of most Cirrus
Logic devices on mini-cards, as well as allowing connection of various
application processor systems to provide a full evaluation platform.
Audio system topology, clocking and power can all be controlled through
the Lochnagar, allowing the device under test to be used in a variety of
possible use cases.
This binding document describes the binding for the clock portion of the
driver.
Also see these documents for generic binding information:
[1] Clock : ../clock/clock-bindings.txt
And these for relevant defines:
[2] include/dt-bindings/clock/lochnagar.h
This binding must be part of the Lochnagar MFD binding:
[3] ../mfd/cirrus,lochnagar.yaml
properties:
compatible:
enum:
- cirrus,lochnagar1-clk
- cirrus,lochnagar2-clk
'#clock-cells':
description:
The first cell indicates the clock number, see [2] for available
clocks and [1].
const: 1
clock-names:
items:
enum:
- ln-cdc-clkout # Output clock from CODEC card.
- ln-dsp-clkout # Output clock from DSP card.
- ln-gf-mclk1 # Optional input clock from host system.
- ln-gf-mclk2 # Optional input clock from host system.
- ln-gf-mclk3 # Optional input clock from host system.
- ln-gf-mclk4 # Optional input clock from host system.
- ln-psia1-mclk # Optional input clock from external connector.
- ln-psia2-mclk # Optional input clock from external connector.
- ln-spdif-mclk # Optional input clock from SPDIF.
- ln-spdif-clkout # Optional input clock from SPDIF.
- ln-adat-mclk # Optional input clock from ADAT.
- ln-pmic-32k # On board fixed clock.
- ln-clk-12m # On board fixed clock.
- ln-clk-11m # On board fixed clock.
- ln-clk-24m # On board fixed clock.
- ln-clk-22m # On board fixed clock.
- ln-clk-8m # On board fixed clock.
- ln-usb-clk-24m # On board fixed clock.
- ln-usb-clk-12m # On board fixed clock.
minItems: 1
maxItems: 19
clocks:
minItems: 1
maxItems: 19
additionalProperties: false
required:
- compatible
- '#clock-cells'