MT7621 ethernet does not get probed on net-next branch after 5.15 merge

[Arınç ÜNAL]

This is fixed with the patch series (yet to be applied upstream) in the 
link below.

https://lore.kernel.org/all/20220110114930.1406665-1-sergio.paracuellos@gmail.com/

On 15/10/2021 17:23, DENG Qingfang wrote:
> Hi,
> 
> After the merge of 5.15.y into net-next, MT7621 ethernet
> (mtk_eth_soc.c) does not get probed at all.
> 
> Kernel log before 5.15 merge:
> ...
> libphy: Fixed MDIO Bus: probed
> libphy: mdio: probed
> mt7530 mdio-bus:1f: MT7530 adapts as multi-chip module
> mtk_soc_eth 1e100000.ethernet eth0: mediatek frame engine at 0xbe100000, irq 20
> mt7621-pci 1e140000.pcie: host bridge /pcie at 1e140000 ranges:
> ...
> 
> Kernel log after 5.15 merge:
> ...
> libphy: Fixed MDIO Bus: probed
> mt7621-pci 1e140000.pcie: host bridge /pcie at 1e140000 ranges:
> ...
> 
> 
> I tried adding debug prints into the .mtk_probe function, but it did
> not execute.
> There are no dts changes for MT7621 between 5.14 and 5.15, so I
> believe it should be something else.
> 
> Any ideas?
>