linux-kernel - Re: [PATCH v10 1/6] dt-bindings: remoteproc: Add Xilinx RPU subsystem bindings

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Message-ID: <fa60ba81-6cc7-7f78-55cc-9ca0053336b8@linaro.org>
Date:   Wed, 12 Oct 2022 11:29:47 -0400
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Tanmay Shah <tanmay.shah@....com>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Michal Simek <michal.simek@....com>
Cc:     linux-remoteproc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v10 1/6] dt-bindings: remoteproc: Add Xilinx RPU subsystem
 bindings

On 11/10/2022 17:24, Tanmay Shah wrote:
> Xilinx ZynqMP platform has dual-core ARM Cortex R5 Realtime Processing
> Unit(RPU) subsystem. This patch adds dt-bindings for RPU subsystem
> (cluster).
> 
> Signed-off-by: Tanmay Shah <tanmay.shah@....com>
> ---
> 
> Changes in v10:
>   - rename example node to remoteproc
> 
> Changes in v9:
>   - remove power-domains property description
>   - fix nitpicks in description of other properties
> 
> Changes in v8:
>   - Add 'items:' for sram property
> 
> Changes in v7:
>   - Add minItems in sram property
> 
> Changes in v6:
>   - Add maxItems to sram and memory-region property
> 
> Changes in v5:
> - Add constraints of the possible values of xlnx,cluster-mode property
> - fix description of power-domains property for r5 core
> - Remove reg, address-cells and size-cells properties as it is not required
> - Fix description of mboxes property
> - Add description of each memory-region and remove old .txt binding link
>   reference in the description
> 
> Changes in v4:
>   - Add memory-region, mboxes and mbox-names properties in example
> 
> Changes in v3:
>   - None
> 
>  .../bindings/remoteproc/xlnx,r5f-rproc.yaml   | 135 ++++++++++++++++++
>  include/dt-bindings/power/xlnx-zynqmp-power.h |   6 +
>  2 files changed, 141 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/remoteproc/xlnx,r5f-rproc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/remoteproc/xlnx,r5f-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/xlnx,r5f-rproc.yaml
> new file mode 100644
> index 000000000000..8079b60b950e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/remoteproc/xlnx,r5f-rproc.yaml

The convention is to have filename matching the compatible, so:
xlnx,zynqmp-r5fss.yaml

> @@ -0,0 +1,135 @@
> +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/remoteproc/xlnx,r5f-rproc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Xilinx R5F processor subsystem
> +
> +maintainers:
> +  - Ben Levinsky <ben.levinsky@....com>
> +  - Tanmay Shah <tanmay.shah@....com>
> +
> +description: |
> +  The Xilinx platforms include a pair of Cortex-R5F processors (RPU) for
> +  real-time processing based on the Cortex-R5F processor core from ARM.
> +  The Cortex-R5F processor implements the Arm v7-R architecture and includes a
> +  floating-point unit that implements the Arm VFPv3 instruction set.
> +
> +properties:
> +  compatible:
> +    const: xlnx,zynqmp-r5fss
> +



Best regards,
Krzysztof