netdev - mtk_eth_soc for mt7621 won't work after 6.0-rc1

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Date:   Mon, 12 Sep 2022 14:55:33 +0300
From:   Arınç ÜNAL <arinc.unal@...nc9.com>
To:     netdev <netdev@...r.kernel.org>
Cc:     Lorenzo Bianconi <lorenzo@...nel.org>,
        Sergio Paracuellos <sergio.paracuellos@...il.com>
Subject: mtk_eth_soc for mt7621 won't work after 6.0-rc1

Ethernet for MT7621 SoCs no longer works after changes introduced to 
mtk_eth_soc with 6.0-rc1. Ethernet interfaces initialise fine. Packets 
are sent out from the interface fine but won't be received on the interface.

Tested with MT7530 DSA switch connected to gmac0 and ICPlus IP1001 PHY 
connected to gmac1 of the SoC.

Last working kernel is 5.19. The issue is present on 6.0-rc5.

Arınç