linux-kernel - [PATCH v2 1/2] dt-bindings: arm: fsl: Add FRDM-IMX91S board

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Message-Id: <20251215-imx91s-frdm-v2-1-87996bdaa59c@nxp.com>
Date: Mon, 15 Dec 2025 17:42:51 +0900
From: Yanan Yang <yanan.yang@....com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
 yanan.yang@....com, qijian.guo@....com, justin.jiang@....com
Subject: [PATCH v2 1/2] dt-bindings: arm: fsl: Add FRDM-IMX91S board

Add DT compatible string for NXP FRDM-IMX91S board

The FRDM-IMX91S is a low-cost, compact development board based on the
i.MX91 applications processor. It is a cost-optimized variant of the
FRDM-IMX91 board, with notable hardware differences requiring a separate
DTS:
- 512MB LPDDR4 (FRDM-IMX91 uses 1GB)
- 256MB FlexSPI-NAND (FRDM-IMX91 uses 8GB eMMC)
- Single GbE port (FRDM-IMX91 has dual GbE)
- PMIC PF9453 (FRDM-IMX91 uses PCA9451A)

Signed-off-by: Yanan Yang <yanan.yang@....com>

---
Changes in v2:
- Correct author name: removed extra period in "Yanan.Yang"
- Refined commit message to clarify board differences
---
 Documentation/devicetree/bindings/arm/fsl.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index 68a2d5fecc43..82f28be401b8 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -1412,6 +1412,7 @@ properties:
         items:
           - enum:
               - fsl,imx91-11x11-evk       # i.MX91 11x11 EVK Board
+              - fsl,imx91-11x11-frdm-s    # FRDM-IMX91S Board
           - const: fsl,imx91
 
       - description: i.MX93 based Boards

-- 
2.43.0