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

Tommaso Merciai
2022-03-02T09:25:05Z

On Mon, Feb 28, 2022 at 01:23:02PM +0100, Richard Leitner wrote:
> 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 AUTOSEL message/thread is obsolete.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?

Hi All,
Sorry for delay, but I'm quite busy in these days.
Yes I can provide a patch about documentation in the
next days.

Regards,
Tommaso

>
> regards;rl
>
> >
> > Best regards,
> > Pavel