linux-kernel - [PATCH 14/15] ARM: dts: ls1021a-qads: Add fallback compatible string mdio-mux

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Message-Id: <20250818-ls1021a_dts_warning-v1-14-7a79b6b4a0e2@nxp.com>
Date: Mon, 18 Aug 2025 16:48:25 -0400
From: Frank Li <Frank.Li@....com>
To: Shawn Guo <shawnguo@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, imx@...ts.linux.dev, 
 Frank Li <Frank.Li@....com>
Subject: [PATCH 14/15] ARM: dts: ls1021a-qads: Add fallback compatible
 string mdio-mux

Add fallback compatible string mdio-mux to fix below CHECK_DTBS warnings:
  arch/arm/boot/dts/nxp/ls/ls1021a-qds.dtb: mdio-mux-emi1 (mdio-mux-mmioreg): compatible: ['mdio-mux-mmioreg'] is too short
	from schema $id: http://devicetree.org/schemas/net/mdio-mux-mmioreg.yaml#

Signed-off-by: Frank Li <Frank.Li@....com>
---
 arch/arm/boot/dts/nxp/ls/ls1021a-qds.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/nxp/ls/ls1021a-qds.dts b/arch/arm/boot/dts/nxp/ls/ls1021a-qds.dts
index 8bc8ff2e3b03d6eeb43d79fe0555842536ab735c..ce6e950ff10ea10b9431144e5147e75e3c0ce6cb 100644
--- a/arch/arm/boot/dts/nxp/ls/ls1021a-qds.dts
+++ b/arch/arm/boot/dts/nxp/ls/ls1021a-qds.dts
@@ -212,7 +212,7 @@ fpga: board-control@3,0 {
 		ranges = <0 3 0 0x100>;
 
 		mdio-mux-emi1 {
-			compatible = "mdio-mux-mmioreg";
+			compatible = "mdio-mux-mmioreg", "mdio-mux";
 			mdio-parent-bus = <&mdio0>;
 			#address-cells = <1>;
 			#size-cells = <0>;

-- 
2.34.1