Patch "arm64: dts: allwinner: orangepi-zero-plus: fix PHY mode" has been added to the 5.15-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    arm64: dts: allwinner: orangepi-zero-plus: fix PHY mode

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     arm64-dts-allwinner-orangepi-zero-plus-fix-phy-mode.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit de45063c5183e755018ccc951dcb4e819eb417a0
Author: Robert Marko <robert.marko@xxxxxxxxxx>
Date:   Wed Nov 17 15:02:22 2021 +0100

    arm64: dts: allwinner: orangepi-zero-plus: fix PHY mode
    
    [ Upstream commit 08d2061ff9c5319a07bf9ca6bbf11fdec68f704a ]
    
    Orange Pi Zero Plus uses a Realtek RTL8211E RGMII Gigabit PHY, but its
    currently set to plain RGMII mode meaning that it doesn't introduce
    delays.
    
    With this setup, TX packets are completely lost and changing the mode to
    RGMII-ID so the PHY will add delays internally fixes the issue.
    
    Fixes: a7affb13b271 ("arm64: allwinner: H5: Add Xunlong Orange Pi Zero Plus")
    Acked-by: Chen-Yu Tsai <wens@xxxxxxxx>
    Tested-by: Ron Goossens <rgoossens@xxxxxxxxx>
    Tested-by: Samuel Holland <samuel@xxxxxxxxxxxx>
    Signed-off-by: Robert Marko <robert.marko@xxxxxxxxxx>
    Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
    Link: https://lore.kernel.org/r/20211117140222.43692-1-robert.marko@xxxxxxxxxx
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts
index d13980ed7a79a..7ec5ac850a0dc 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h5-orangepi-zero-plus.dts
@@ -69,7 +69,7 @@
 	pinctrl-0 = <&emac_rgmii_pins>;
 	phy-supply = <&reg_gmac_3v3>;
 	phy-handle = <&ext_rgmii_phy>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	status = "okay";
 };