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Date: Fri, 11 Nov 2022 07:08:36 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Ferry Toth <ftoth@...londelft.nl>
Cc: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
Thinh Nguyen <Thinh.Nguyen@...opsys.com>,
Sean Anderson <sean.anderson@...o.com>,
Liu Shixin <liushixin2@...wei.com>,
Ferry Toth <fntoth@...il.com>,
Andrey Smirnov <andrew.smirnov@...il.com>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: Re: [PATCH v2 1/2] usb: ulpi: defer ulpi_register on ulpi_read_id
timeout
On Thu, Nov 10, 2022 at 10:11:31PM +0100, Ferry Toth wrote:
> Since commit 0f010171
> Dual Role support on Intel Merrifield platform broke due to rearranging
> the call to dwc3_get_extcon().
Please see the kernel documentation for how to refer to commits. This
should be written as:
Since commit 0f0101719138 ("usb: dwc3: Don't switch OTG -> peripheral if
extcon is present"), Dual role....
> It appears to be caused by ulpi_read_id() on the first test write failing
> with -ETIMEDOUT. Currently ulpi_read_id() expects to discover the phy via
> DT when the test write fails and returns 0 in that case even if DT does not
> provide the phy. As a result usb probe completes without phy.
>
> Signed-off-by: Ferry Toth <ftoth@...londelft.nl>
What commit does this fix?
Should this also get a cc: stable?
thanks,
greg k-h
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