[PATCH next 1/4] rockchip: ringneck-px30: disable broken USB gadget

[Quentin Schulz]

Hi Kever,

On 7/16/24 4:04 AM, Kever Yang wrote:
> Hi Quentin,
> 
> On 2024/6/14 19:04, Quentin Schulz wrote:
>> From: Quentin Schulz <quentin.schulz at cherry.de>
>>
>> USB gadget simply doesn't work right now on PX30. Tested on PX30 EVB and
>> PX30 Ringneck with Linux mainline and Rockchip 5.10 Linux as well as
>> U-Boot.
> Do you mean for both U-Boot and kernel, including mainline version and 
> rockchip version,
> and on both PX30 EVB and Ringneck board, all SW&HW have no USB gadget 
> working?

Mainline U-Boot on PX30 Ringneck -> not working
PX30 EVB and PX30 Ringneck in Rockchip 5.10 kernel when I tested about 
two years or so ago -> working-ish, but very unstable on Ringneck and I 
think not working at all on PX30 EVB
PX30 Ringneck (possibly PX30 EVB, I don't remember) in upstream 6.0.2 
(and also next-20221216) -> not working

I don't know what you mean by SW&HW, how am I supposed to differentiate 
the two?

FYI, I tried to add **some** support in upstream, it got merged and then 
reverted because it broke STM platforms, c.f. 
https://lore.kernel.org/linux-usb/20221206-dwc2-gadget-dual-role-v2-0-0de821615dd3@theobroma-systems.com/ 
and 
https://lore.kernel.org/linux-usb/20230315144433.3095859-1-fabrice.gasnier@foss.st.com/

I can test stuff again and provide a bit more info if requested.

> So when you test this, does the maskrom mode works? because it sounds 
> like maybe
> the HOST PC is the one have issue at the moment.
> 

I can use rkdeveloptool just fine when using Rockchip blobs from rkbin, 
no issue with the HW asf ar as I know.

Cheers,
Quentin