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

From: Krzysztof Kozlowski
Date: Wed Oct 12 2022 - 11:32:06 EST


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@xxxxxxx>
> ---
>
> 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@xxxxxxx>
> + - Tanmay Shah <tanmay.shah@xxxxxxx>
> +
> +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