linux-kernel - Re: [PATCH v3] dt-bindings: misc: xlnx,sd-fec: convert bindings to yaml

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Date: Tue, 30 Jan 2024 15:30:59 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Dragan Cvetic <dragan.cvetic@....com>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Derek Kiernan <derek.kiernan@....com>,
 Jonathan Corbet <corbet@....net>, Michal Simek <michal.simek@....com>,
 "Erim, Salih" <salih.erim@....com>,
 "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
 <devicetree@...r.kernel.org>, open list <linux-kernel@...r.kernel.org>,
 "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
 "moderated list:ARM/ZYNQ ARCHITECTURE" <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v3] dt-bindings: misc: xlnx,sd-fec: convert bindings to
 yaml

On 30/01/2024 13:53, Dragan Cvetic wrote:
> Convert AMD (Xilinx) sd-fec bindings to yaml format, so it can validate
> dt-entries as well as any future additions to yaml.
> Change in clocks is due to IP is itself configurable and
> only the first two clocks are in all combinations. The last
> 6 clocks can be present in some of them. It means order is
> not really fixed and any combination is possible.
> Interrupt may or may not be present.
> The documentation for sd-fec bindings is now YAML, so update the
> MAINTAINERS file.
> Update the link to the new yaml file in xilinx_sdfec.rst.
> 
> Signed-off-by: Dragan Cvetic <dragan.cvetic@....com>
> ---
> Changes in v2:
> ---
> Drop clocks description.
> Use "contains:" with enum for optional clock-names and update
> comment explaining diference from the original DT binding file.
> Remove trailing full stops.
> Add more details in sdfec-code description.
> Set sdfec-code to "string" not "string-array"
> ---
> Changes in v3:
> Fix a mistake in example, set interrupt type to 0.

Why? That's not a correct interrupt type in most of the cases.

Was this patch tested?

..

> diff --git a/Documentation/devicetree/bindings/misc/xlnx,sd-fec.yaml b/Documentation/devicetree/bindings/misc/xlnx,sd-fec.yaml
> new file mode 100644
> index 000000000000..ed87c48a9ee9
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/misc/xlnx,sd-fec.yaml
> @@ -0,0 +1,136 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/misc/xlnx,sd-fec.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Xilinx SDFEC(16nm) IP
> +
> +maintainers:
> +  - Cvetic, Dragan <dragan.cvetic@....com>
> +  - Erim, Salih <salih.erim@....com>
> +
> +description: |

Do not need '|' unless you need to preserve formatting.

> +  The Soft Decision Forward Error Correction (SDFEC) Engine is a Hard IP block
> +  which provides high-throughput LDPC and Turbo Code implementations.
> +  The LDPC decode & encode functionality is capable of covering a range of
> +  customer specified Quasi-cyclic (QC) codes. The Turbo decode functionality
> +  principally covers codes used by LTE. The FEC Engine offers significant
> +  power and area savings versus implementations done in the FPGA fabric.
> +


> +  xlnx,sdfec-dout-words:
> +    description: |
> +      A value 0 indicates that the DOUT_WORDS interface is
> +      driven with a fixed value and is not present on the device, a value of 1
> +      configures the DOUT_WORDS to be block based, while a value of 2 configures the
> +      DOUT_WORDS input to be supplied for each AXI transaction.
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    enum: [ 0, 1, 2 ]
> +
> +

Just one blank line.

Best regards,
Krzysztof