linux-kernel - [PATCH v2 2/5] arm64: dts: mediatek: mt7988: Disable 2.5G phy and enable at board layer

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Message-ID: <20251105195007.199229-3-linux@fw-web.de>
Date: Wed,  5 Nov 2025 20:50:02 +0100
From: Frank Wunderlich <linux@...web.de>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: Frank Wunderlich <frank-w@...lic-files.de>,
	Sean Wang <sean.wang@...iatek.com>,
	Daniel Golle <daniel@...rotopia.org>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-gpio@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org
Subject: [PATCH v2 2/5] arm64: dts: mediatek: mt7988: Disable 2.5G phy and enable at board layer

From: Frank Wunderlich <frank-w@...lic-files.de>

The internal 2.5G phy of mt7988 is only used by some specific board
variants.
Disable it by default and enable it where needed.

Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
---
 arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-2g5.dts | 1 +
 arch/arm64/boot/dts/mediatek/mt7988a.dtsi                    | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-2g5.dts b/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-2g5.dts
index 6f0c81e3fd94..0e41c07d3a5f 100644
--- a/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-2g5.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-2g5.dts
@@ -19,4 +19,5 @@ &gmac1 {
 &int_2p5g_phy {
 	pinctrl-0 = <&i2p5gbe_led0_pins>;
 	pinctrl-names = "i2p5gbe-led";
+	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
index 366203a72d6d..ed4b592c9dd5 100644
--- a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
@@ -995,6 +995,7 @@ mdio_bus: mdio-bus {
 				int_2p5g_phy: ethernet-phy@15 {
 					compatible = "ethernet-phy-ieee802.3-c45";
 					reg = <15>;
+					status = "disabled";
 				};
 			};
 		};
-- 
2.43.0