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clk: lochnagar: Move binding over to dtschema 

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Charles Keepax 2020-05-12 16:23:57 +01:00 committed by Rob Herring
parent 96c1517e0e
commit e0a99c55d0
2 changed files with 78 additions and 94 deletions
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Documentation/devicetree/bindings/clock/cirrus,lochnagar.txt
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Cirrus Logic Lochnagar Audio Development Board
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.txt
Required properties:
- compatible : One of the following strings:
"cirrus,lochnagar1-clk"
"cirrus,lochnagar2-clk"
- #clock-cells : Must be 1. The first cell indicates the clock
number, see [2] for available clocks and [1].
Optional properties:
- clocks : Must contain an entry for each clock in clock-names.
- clock-names : May contain entries for each of the following
clocks:
- ln-cdc-clkout : Output clock from CODEC card.
- ln-dsp-clkout : Output clock from DSP card.
- ln-gf-mclk1,ln-gf-mclk2,ln-gf-mclk3,ln-gf-mclk4 : Optional
input audio clocks from host system.
- ln-psia1-mclk, ln-psia2-mclk : Optional input audio clocks from
external connector.
- ln-spdif-mclk : Optional input audio clock from SPDIF.
- ln-spdif-clkout : Optional input audio clock from SPDIF.
- ln-adat-mclk : Optional input audio 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.
- assigned-clocks : A list of Lochnagar clocks to be reparented, see
[2] for available clocks.
- assigned-clock-parents : Parents to be assigned to the clocks
listed in "assigned-clocks".
Optional nodes:
- fixed-clock nodes may be registered for the following on board clocks:
- ln-pmic-32k : 32768 Hz
- ln-clk-12m : 12288000 Hz
- ln-clk-11m : 11298600 Hz
- ln-clk-24m : 24576000 Hz
- ln-clk-22m : 22579200 Hz
- ln-clk-8m : 8192000 Hz
- ln-usb-clk-24m : 24576000 Hz
- ln-usb-clk-12m : 12288000 Hz
Example:
lochnagar {
lochnagar-clk {
compatible = "cirrus,lochnagar2-clk";
#clock-cells = <1>;
clocks = <&clk-audio>, <&clk_pmic>;
clock-names = "ln-gf-mclk2", "ln-pmic-32k";
assigned-clocks = <&lochnagar-clk LOCHNAGAR_CDC_MCLK1>,
<&lochnagar-clk LOCHNAGAR_CDC_MCLK2>;
assigned-clock-parents = <&clk-audio>,
<&clk-pmic>;
};
clk-pmic: clk-pmic {
compatible = "fixed-clock";
clock-cells = <0>;
clock-frequency = <32768>;
};
};

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Documentation/devicetree/bindings/clock/cirrus,lochnagar.yaml Normal file
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# 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: true
assigned-clocks: true
assigned-clock-parents: true
additionalProperties: false
required:
- compatible
- '#clock-cells'