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With the introduction of NVMEM layouts, new NVMEM content structures
should be defined as such. We should also try to convert / migrate
existing NVMEM content bindings to layouts.
This commit handles fixed NVMEM cells. So far they had to be defined
directly - as device subnodes. With this change it's allowed to put them
in the DT node named "nvmem-layout".
Having NVMEM cells in separated node is preferred as it draws a nice
line between NVMEM device and its content. It results in cleaner
bindings.
FWIW a very similar situation has happened to MTD devices and their
partitions: see commit 5d96ea42eb
("dt-bindings: mtd: Clarify all
partition subnodes").
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Message-ID: <20230611140330.154222-24-srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
32 lines
905 B
YAML
32 lines
905 B
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/nvmem/layouts/nvmem-layout.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: NVMEM (Non Volatile Memory) layouts
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maintainers:
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- Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
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- Michael Walle <michael@walle.cc>
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- Miquel Raynal <miquel.raynal@bootlin.com>
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description: |
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Most NVMEM layouts are static and thus do not require additional description
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besides the bytes/bits offset and length. Other layouts can be less statically
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define and might require dynamic reading of the NVMEM device in order to
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perform their parsing. The nvmem-layout container is here to describe these.
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oneOf:
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- $ref: fixed-layout.yaml
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- $ref: kontron,sl28-vpd.yaml
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- $ref: onie,tlv-layout.yaml
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properties:
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compatible: true
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required:
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- compatible
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unevaluatedProperties: false
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