[PATCH] ARM: dts: renesas: Add compatible properties to LAN8710A Ethernet PHYs

[Marek Vasut]

From: Geert Uytterhoeven <geert+renesas at glider.be>

Add compatible values to Ethernet PHY subnodes representing SMSC
LAN8710A PHYs on RZ/A1 and R-Mobile A1 boards.  This allows software to
identify the PHY model at any time, regardless of the state of the PHY
reset line.

Ported from Linux kernel commit 1c65ef1c71e473c00f2a7a1b9c140f0b4862f282 .

Signed-off-by: Geert Uytterhoeven <geert+renesas at glider.be>
Reviewed-by: Andrew Lunn <andrew at lunn.ch>
Link: https://lore.kernel.org/r/247dc2074dae149af07b6d014985ad30eb362eda.1631174218.git.geert+renesas@glider.be
---
Cc: Geert Uytterhoeven <geert+renesas at glider.be>
Cc: Joe Hershberger <joe.hershberger at ni.com>
Cc: Michal Simek <michal.simek at amd.com>
Cc: Nishanth Menon <nm at ti.com>
Cc: Ramon Fried <rfried.dev at gmail.com>
---
 arch/arm/dts/r7s72100-gr-peach.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/dts/r7s72100-gr-peach.dts b/arch/arm/dts/r7s72100-gr-peach.dts
index fe1a4aa4d7c..70d034c26dd 100644
--- a/arch/arm/dts/r7s72100-gr-peach.dts
+++ b/arch/arm/dts/r7s72100-gr-peach.dts
@@ -126,6 +126,8 @@
 	phy-handle = <&phy0>;
 
 	phy0: ethernet-phy at 0 {
+		compatible = "ethernet-phy-id0007.c0f0",
+			     "ethernet-phy-ieee802.3-c22";
 		reg = <0>;
 
 		reset-gpios = <&port4 2 GPIO_ACTIVE_LOW>;
-- 
2.39.2