arm64: dts: renesas: Add compatible properties to AR8031 Ethernet PHYs

Add compatible values to Ethernet PHY subnodes representing Atheros
AR8031 PHYs on RZ/G2 boards.  This allows software to identify the PHY
model at any time, regardless of the state of the PHY reset line.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Adam Ford <aford173@gmail.com>
Link: https://lore.kernel.org/r/3f1b58756f149f0c634c66abaecc88e699f4c3cc.1631174218.git.geert+renesas@glider.be

diff --git a/arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi b/arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi
index 937d17a..0d13680 100644 (file)
--- a/arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi
+++ b/arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi
@@ -59,6 +59,8 @@
        status = "okay";
 
        phy0: ethernet-phy@0 {
+               compatible = "ethernet-phy-id004d.d074",
+                            "ethernet-phy-ieee802.3-c22";
                reg = <0>;
                interrupt-parent = <&gpio2>;
                interrupts = <11 IRQ_TYPE_LEVEL_LOW>;