linux-kernel - Re: [PATCH 5/5] usb: typec: ucsi: Clear UCSI_CCI_RESET

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Message-ID: <377fw2gj3vvn7b5u7riwrhd7vwax3zgrtr3qun6tpsqkmqc5ck@ihayymezd5qa>
Date: Tue, 28 Jan 2025 17:04:17 +0300
From: Fedor Pchelkin <boddah8794@...il.com>
To: "Christian A. Ehrhardt" <lk@...e.de>
Cc: Saranya Gopal <saranya.gopal@...el.com>, linux-kernel@...r.kernel.org, 
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
	Prashant Malani <pmalani@...omium.org>, Jameson Thies <jthies@...gle.com>, 
	Abhishek Pandit-Subedi <abhishekpandit@...omium.org>, Neil Armstrong <neil.armstrong@...aro.org>, 
	Uwe Kleine-König <u.kleine-koenig@...gutronix.de>, Samuel Čavoj <samuel@...oj.net>, 
	linux-usb@...r.kernel.org, Kenneth Crudup <kenny@...ix.com>, 
	Sasha Levin <sashal@...nel.org>
Subject: Re: [PATCH 5/5] usb: typec: ucsi: Clear UCSI_CCI_RESET_COMPLETE
 before reset

On Tue, 28. Jan 16:58, Fedor Pchelkin wrote:
> It appears like PPM is not ready yet for communication during the boot.
> 
> Increasing a timeout just to 2x eliminates the errors in my case:

That said, if I manually load/unload ucsi_acpi module later, it also
initializes perfectly without the need to increase the timeout.

The significant delays are seen only during the boot phase..