[PATCH 2/2] arm64: dts: mediatek: mt7986: set PHY address of MT7531 switch to 0x1f

[Arınç ÜNAL via B4 Relay]

From: Arınç ÜNAL <arinc.unal at arinc9.com>

The MT7531 switch listens on PHY address 0x1f on an MDIO bus. I've got two
findings that support this. There's no bootstrapping option to change the
PHY address of the switch. The Linux driver hardcodes 0x1f as the PHY
address of the switch. So the reg property on the device tree is currently
ignored by the Linux driver.

Therefore, describe the correct PHY address on boards that have this
switch. This is already the case on all MT7986 boards here, so use
hexadecimal numbering and align the switch node name with the reg value.

Signed-off-by: Arınç ÜNAL <arinc.unal at arinc9.com>
---
 arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts | 4 ++--
 arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts             | 4 ++--
 arch/arm64/boot/dts/mediatek/mt7986b-rfb.dts             | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts
index e04b1c0c0ebb..2f92f8cfd8a3 100644
--- a/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts
@@ -200,9 +200,9 @@ mdio: mdio-bus {
 };
 
 &mdio {
-	switch: switch at 31 {
+	switch: switch at 1f {
 		compatible = "mediatek,mt7531";
-		reg = <31>;
+		reg = <0x1f>;
 		interrupt-controller;
 		#interrupt-cells = <1>;
 		interrupts-extended = <&pio 66 IRQ_TYPE_LEVEL_HIGH>;
diff --git a/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts b/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts
index 5d8e3d3f6c20..47f75ece1872 100644
--- a/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts
@@ -84,9 +84,9 @@ mdio: mdio-bus {
 };
 
 &mdio {
-	switch: switch at 0 {
+	switch: switch at 1f {
 		compatible = "mediatek,mt7531";
-		reg = <31>;
+		reg = <0x1f>;
 		reset-gpios = <&pio 5 0>;
 	};
 };
diff --git a/arch/arm64/boot/dts/mediatek/mt7986b-rfb.dts b/arch/arm64/boot/dts/mediatek/mt7986b-rfb.dts
index 58f77d932429..5148a69f4729 100644
--- a/arch/arm64/boot/dts/mediatek/mt7986b-rfb.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7986b-rfb.dts
@@ -61,9 +61,9 @@ mdio: mdio-bus {
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		switch at 0 {
+		switch at 1f {
 			compatible = "mediatek,mt7531";
-			reg = <31>;
+			reg = <0x1f>;
 			reset-gpios = <&pio 5 0>;
 
 			ports {

-- 
2.40.1