linux-kernel - [PATCH] dt-bindings: firmware: versal: add versal-net compatible string

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Message-ID: <1698349328-2321184-1-git-send-email-radhey.shyam.pandey@amd.com>
Date:   Fri, 27 Oct 2023 01:12:08 +0530
From:   Radhey Shyam Pandey <radhey.shyam.pandey@....com>
To:     <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <conor+dt@...nel.org>, <michal.simek@....com>,
        <sebastian.reichel@...labora.com>, <broonie@...nel.org>,
        <jassisinghbrar@...il.com>, <jay.buddhabhatti@...inx.com>,
        <naman.trivedimanojbhai@....com>, <nava.kishore.manne@....com>
CC:     <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <git@....com>
Subject: [PATCH] dt-bindings: firmware: versal: add versal-net compatible string

From: Jay Buddhabhatti <jay.buddhabhatti@...inx.com>

Add dt-binding documentation for Versal NET platforms.
Versal Net is a new AMD/Xilinx SoC.

The SoC and its architecture is based on the Versal ACAP device.
The Versal Net device includes more security features in the
platform management controller (PMC) and increases the number of
CPUs in the application processing unit (APU) and the real-time
processing unit (RPU).

Signed-off-by: Jay Buddhabhatti <jay.buddhabhatti@...inx.com>
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@....com>
---
This usecase also looks similar to versal-net clock upstream compatible
discussion[1], so inline with mainline suggestion i have modified
firmware binding. Also firmware driver can be modified later
on when there is a real SoC specific compatible string need.

[1]: https://lore.kernel.org/all/20230620110137.5701-1-shubhrajyoti.datta@amd.com
---
 .../bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml      | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml
index 822864488dcb..c5483d80ce3c 100644
--- a/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml
+++ b/Documentation/devicetree/bindings/firmware/xilinx/xlnx,zynqmp-firmware.yaml
@@ -26,6 +26,12 @@ properties:
       - description: For implementations complying for Versal.
         const: xlnx,versal-firmware
 
+      - description: For implementations complying for Versal NET.
+        items:
+          - enum:
+              - xlnx,versal-net-firmware
+          - const: xlnx,versal-firmware
+
   method:
     description: |
                  The method of calling the PM-API firmware layer.
-- 
2.34.1