lkml.org 
[lkml]   [2021]   [May]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] usb: typec: ucsi: Clear pending after acking connector change
From
Date
On Tue, 2021-05-18 at 16:29 +0300, Heikki Krogerus wrote:
> On Mon, May 17, 2021 at 02:57:28PM +0200, Benjamin Berg wrote:
> >
> > [SNIP]
> > Unfortunately, I don't feel it'll work. The problem that I was
> > seeing
> > looked like a race condition in the PPM itself, where the window is
> > the
> > time between the UCSI_GET_CONNECTOR_STATUS command and the
> > subsequent
> > ACK.
> > For such a firmware level bug in the PPM, we need a way to detect
> > the
> > race condition when it happens (or get a fix for the firmware).
>
> OK. Let me know does the patch bring the issue back for you.

So, I just tried the patch, and I can occasionally reproduce the issue
where "online" for the ucsi power adapter is stuck at "1" after
unplugging with the patch applied.

Benjamin
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2021-05-18 20:04    [W:0.059 / U:1.564 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site