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From: Sameer Pujar <spujar@nvidia.com>
To: Philipp Zabel <p.zabel@pengutronix.de>, Rob Herring <robh@kernel.org>
Cc: <broonie@kernel.org>, <lgirdwood@gmail.com>,
	<kuninori.morimoto.gx@renesas.com>,
	<pierre-louis.bossart@linux.intel.com>, <perex@perex.cz>,
	<tiwai@suse.com>, <thierry.reding@gmail.com>,
	<jonathanh@nvidia.com>, <alsa-devel@alsa-project.org>,
	<devicetree@vger.kernel.org>, <linux-tegra@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <sharadg@nvidia.com>,
	<mkumard@nvidia.com>, <viswanathl@nvidia.com>,
	<rlokhande@nvidia.com>, <dramesh@nvidia.com>,
	<atalambedu@nvidia.com>, <nwartikar@nvidia.com>,
	<swarren@nvidia.com>, <nicoleotsuka@gmail.com>
Subject: Re: [PATCH v4 08/15] Documentation: of: Convert graph bindings to json-schema
Date: Fri, 23 Oct 2020 19:15:52 +0530
Message-ID: <9cea202e-6ffb-c9da-d9c0-debc351fd944@nvidia.com> (raw)
In-Reply-To: <ea670e2ed677d67afdb52e876eeee35eb9d7949e.camel@pengutronix.de>


>>> Signed-off-by: Sameer Pujar <spujar@nvidia.com>
>>> Cc: Philipp Zabel <p.zabel@pengutronix.de>
>>> ---
>>>   Documentation/devicetree/bindings/graph.txt  | 128 --------------------
> The removed Documentation/devicetree/bindings/graph.txt is referenced by
> a lot of files, tree-wide. Should the references be updated in the same
> series?

May be possible to include in the same series if it is just about using 
'graph.yaml' reference instead of 'graph.txt' in various files.

...

>>> +%YAML 1.2
>>> +---
>>> +$id: http://devicetree.org/schemas/graph.yaml#
>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>> +
>>> +title: Common bindings for device graphs
>>> +
>>> +description: |
>>> +  The hierarchical organisation of the device tree is well suited to describe
>>> +  control flow to devices, but there can be more complex connections between
>>> +  devices that work together to form a logical compound device, following an
>>> +  arbitrarily complex graph.
>>> +  There already is a simple directed graph between devices tree nodes using
>>> +  phandle properties pointing to other nodes to describe connections that
>>> +  can not be inferred from device tree parent-child relationships. The device
>>> +  tree graph bindings described herein abstract more complex devices that can
>>> +  have multiple specifiable ports, each of which can be linked to one or more
>>> +  ports of other devices.
>>> +
>>> +  These common bindings do not contain any information about the direction or
>>> +  type of the connections, they just map their existence. Specific properties
>>> +  may be described by specialized bindings depending on the type of connection.
>>> +
>>> +  To see how this binding applies to video pipelines, for example, see
>>> +  Documentation/devicetree/bindings/media/video-interfaces.txt.
>>> +  Here the ports describe data interfaces, and the links between them are
>>> +  the connecting data buses. A single port with multiple connections can
>>> +  correspond to multiple devices being connected to the same physical bus.
>>> +
>>> +maintainers:
>>> +  - Philipp Zabel <p.zabel@pengutronix.de>
>>> +
>>> +definitions:
>>> +
>>> +  port:
>>> +    type: object
>>> +    description: |
>>> +      If there is more than one 'port' or more than one 'endpoint' node
>>> +      or 'reg' property present in the port and/or endpoint nodes then
>>> +      '#address-cells' and '#size-cells' properties are required in relevant
>>> +      parent node.
>> reg property.
> What about #address-cells and #size-cells in port and ports nodes?
> These must either be #address-cells = <1>, #size-cells = <0>, or they
> can be absent if the parent node already has the same, or if a port node
> only contains a single endpoint.

Yes, will list these properties for port/ports.

...

  reply index

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-16 14:42 [PATCH v4 00/15] Audio graph card updates and usage with Tegra210 audio Sameer Pujar
2020-10-16 14:42 ` [PATCH v4 01/15] ASoC: soc-core: Fix component name_prefix parsing Sameer Pujar
2020-10-16 14:42 ` [PATCH v4 02/15] ASoC: soc-pcm: Get all BEs along DAPM path Sameer Pujar
2020-10-16 14:42 ` [PATCH v4 03/15] ASoC: audio-graph: Use of_node and DAI for DPCM DAI link names Sameer Pujar
2020-10-16 14:42 ` [PATCH v4 04/15] ASoC: audio-graph: Identify 'no_pcm' DAI links for DPCM Sameer Pujar
2020-10-16 14:42 ` [PATCH v4 05/15] ASoC: audio-graph: Support empty Codec endpoint Sameer Pujar
2020-10-16 14:42 ` [PATCH v4 06/15] ASoC: audio-graph: Expose new members for asoc_simple_priv Sameer Pujar
2020-10-16 14:42 ` [PATCH v4 07/15] ASoC: audio-graph: Expose helpers from audio graph Sameer Pujar
2020-10-16 14:42 ` [PATCH v4 08/15] Documentation: of: Convert graph bindings to json-schema Sameer Pujar
2020-10-19 21:56   ` Rob Herring
2020-10-20  5:34     ` Sameer Pujar
2020-10-20  8:30     ` Philipp Zabel
2020-10-23 13:45       ` Sameer Pujar [this message]
2020-10-16 14:42 ` [PATCH v4 09/15] ASoC: dt-bindings: audio-graph: Convert " Sameer Pujar
2020-10-19  2:50   ` Kuninori Morimoto
2020-10-19  4:30     ` Sameer Pujar
2020-10-19  4:41       ` Kuninori Morimoto
2020-10-19 22:11         ` Rob Herring
2020-10-16 14:42 ` [PATCH v4 10/15] ASoC: dt-bindings: tegra: Add graph bindings Sameer Pujar
2020-10-19 22:11   ` Rob Herring
2020-10-20  6:03     ` Sameer Pujar
2020-10-16 14:42 ` [PATCH v4 11/15] ASoC: dt-bindings: tegra: Add json-schema for Tegra audio graph card Sameer Pujar
2020-10-19 22:16   ` Rob Herring
2020-10-20  6:16     ` Sameer Pujar
2020-10-20 13:24       ` Rob Herring
2020-10-16 14:42 ` [PATCH v4 12/15] ASoC: tegra: Add audio graph based card driver Sameer Pujar
2020-10-16 14:43 ` [PATCH v4 13/15] arm64: defconfig: Enable Tegra audio graph " Sameer Pujar
2020-10-16 14:43 ` [PATCH v4 14/15] arm64: tegra: Audio graph header for Tegra210 Sameer Pujar
2020-10-16 14:43 ` [PATCH v4 15/15] arm64: tegra: Audio graph sound card for Jetson Nano and TX1 Sameer Pujar
2020-10-30  6:34 ` [PATCH v4 00/15] Audio graph card updates and usage with Tegra210 audio Sameer Pujar
2020-10-30 13:58   ` Mark Brown

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