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

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Message-ID: <13dd0380-9195-7a24-fac0-e5978393b1ae@amd.com>
Date:   Thu, 13 Oct 2022 08:28:17 -0700
From:   Tanmay Shah <tanmays@....com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        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 10/12/22 8:29 AM, Krzysztof Kozlowski wrote:
> 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
>
Thanks for reviews. Sure I will rename file in next revision.

>> @@ -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
>