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:

quoted

[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