[PATCH] mt76: mt7615: do not advertise 5 GHz on first phy of MT7615D (DBDC)

[Paul Fertser]

Hi Simon,

On Tue, Jun 06, 2023 at 11:03:31AM +0200, Simon Horman wrote:
> On Mon, Jun 05, 2023 at 10:34:07AM +0300, Paul Fertser wrote:
> > On DBDC devices the first (internal) phy is only capable of using
> > 2.4 GHz band, and the 5 GHz band is exposed via a separate phy object,
> > so avoid the false advertising.
> 
> Can I clarify that the second object won't hit the logic change
> below and thus be limited to 2GHz?

The second object (external 5 GHz phy) doesn't have an EEPROM of its
own, and is created explicitly with just this band enabled:

https://elixir.bootlin.com/linux/latest/source/drivers/net/wireless/mediatek/mt76/mt7615/pci_init.c#L104
https://elixir.bootlin.com/linux/latest/source/drivers/net/wireless/mediatek/mt76/mt7615/init.c#L573

So it won't hit the logic change and it will be limited to 5 GHz.

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