linux-kernel - Re: [PATCH] usb: typec: tipd: Separate reset for TPS6598x

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Date: Fri, 5 Jan 2024 12:15:36 +0300
From: Sergey Shtylyov <s.shtylyov@....ru>
To: Jai Luthra <j-luthra@...com>, Heikki Krogerus
	<heikki.krogerus@...ux.intel.com>, Greg Kroah-Hartman
	<gregkh@...uxfoundation.org>, Javier Carrasco
	<javier.carrasco@...fvision.net>
CC: <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<rogerq@...nel.org>, <r-gunasekaran@...com>, <vigneshr@...com>,
	<d-gole@...com>
Subject: Re: [PATCH] usb: typec: tipd: Separate reset for TPS6598x

Hello!

On 1/5/24 12:06 PM, Jai Luthra wrote:

> Some platforms like SK-AM62, SK-AM62A cannot boot up to prompt if
> TPS6598x is cold-reset during unconditionally on probe failures by

   Hm, I can't parse this. During what?

> sending "GAID" sequence.
> 
> The probe can fail initially because USB0 remote-endpoint may not be
> probed yet, which defines the usb-role-switch property.
> 
> Fixes: d49f90822015 ("usb: typec: tipd: add init and reset functions to tipd_data")
> Closes: https://lore.kernel.org/linux-usb/vmngazj6si7xxss7txenezkcukqje2glhvvs7ipdcx3vjiqvlk@ohmmhhhlryws/
> Signed-off-by: Jai Luthra <j-luthra@...com>
[...]

MBR, Sergey