[PATCH v2 1/6] arm64: dts: rockchip: enable USB 2.0 on NanoPC-T6 LTS

[Dragan Simic]

Hello Marcin,

On 2024-08-21 11:14, Marcin Juszkiewicz wrote:
> On 21.08.2024 10:58, Heiko Stübner wrote:
>> Am Mittwoch, 21. August 2024, 10:25:30 CEST schrieb Marcin 
>> Juszkiewicz:
>>> FriendlyELEC introduced new version of NanoPC-T6 SBC.
>> 
>> If this change is specific to the new "LTS" board variant, why is it 
>> in
>> the main board dts now?
> 
> I have not seen firmware builds which handle 'is it LTS or not'
> version of board.
> 
>> I.e. with this change you enable it on _all_ NanoPC-T6 boards, even 
>> the
>> ones without those components?
> 
> The non-LTS version has usb20_host_pwren line not connected. So
> enabling it does not affect the board. Similar to 4g_lte_pwren line
> which is present on NanoPC-T6 non-LTS and not connected on LTS one.
> 
> Looks like vendor took care to keep both versions of board to work with 
> one DT.

I'd suggest that you introduce a new board dts file, specific to the LTS
version of this board.  The DT describes actual hardware, so it should 
be
as strict and as specific as possible.