From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jorge Ramirez <jorge.ramirez-ortiz@linaro.org>
Subject: Re: [PATCH v2 2/2] phy: qualcomm: usb: Add Super-Speed PHY driver
Date: Wed, 30 Jan 2019 13:27:59 +0100
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On 1/30/19 10:53, Jorge Ramirez wrote:

>> +	priv->vbus = devm_regulator_get_optional(priv->dev, "vbus");
> get_optional means that if vbus-supply is not found, rather than
> returning a dummy regulator object this will fail with -ENODEV.

on this subject, is it intentional that devm_reset_control_get_optional
behaves differently (ie, it returns a NULL if it cant be found)

IMO all *_get_optional should be semantically as well as functionally
equivalent to avoid confusions like the one I had.