Re: [PATCH v3 1/2] usb: ulpi: defer ulpi_register on ulpi_read_id timeout

[Andy Shevchenko]

On Thu, Nov 17, 2022 at 09:54:10PM +0100, Ferry Toth wrote:
> Since commit 0f010171
> Dual Role support on Intel Merrifield platform broke due to rearranging
> the call to dwc3_get_extcon().

Not sure why format is broken, you may add into your ~/.gitconfig

	[core]
		abbrev = 12

	[alias]
		one = show -s --pretty='format:%h (\"%s\")'

and run

	git one 0f010171

with the result

	0f0101719138 ("usb: dwc3: Don't switch OTG -> peripheral if extcon is present")

> 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.


-- 
With Best Regards,
Andy Shevchenko