Re: [PATCH AUTOSEL 5.10 04/23] usb: usb251xb: add boost-up property support

Richard Leitner
2022-02-28T12:23:44Z

Hi,

On Sun, Feb 20, 2022 at 11:12:57AM +0100, Pavel Machek wrote:
> Hi!
>
> > From: Tommaso Merciai <tomm.merciai@gmail.com>
> >
> > [ Upstream commit 5c2b9c61ae5d8ad0a196d33b66ce44543be22281 ]
> >
> > Add support for boost-up register of usb251xb hub.
> > boost-up property control USB electrical drive strength
> > This register can be set:
> >
> > - Normal mode -> 0x00
> > - Low -> 0x01
> > - Medium -> 0x10
> > - High -> 0x11
> >
> > (Normal Default)
> >
> > References:
> > - http://www.mouser.com/catalog/specsheets/2514.pdf p29
>
> Should the boost-up property be documented somewhere in the kernel
> tree? We normally do that for device tree properties. And we normally
> have properties used somewhere in the device tree. What is going on here?

AFAIK this patch was dropped for all stable releases, so this specific
AUTOSEL message/thread is obsolete.

Nonetheless the DT documentation is also missing on master. Therefore
I guess it should be provided asap 😉

Tommaso, can you provide a patch?

regards;rl

>
> Best regards,
> Pavel