linux-kernel - Re: [PATCH v2 1/7] usb: dwc3: get "usb_phy" only if the platform indicates the presence of PHY's

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Message-ID: <20131206201530.GA21086@saruman.home>
Date:	Fri, 6 Dec 2013 14:15:30 -0600
From:	Felipe Balbi <balbi@...com>
To:	Heikki Krogerus <heikki.krogerus@...ux.intel.com>
CC:	Felipe Balbi <balbi@...com>, Roger Quadros <rogerq@...com>,
	Kishon Vijay Abraham I <kishon@...com>,
	<gregkh@...uxfoundation.org>, <rob.herring@...xeda.com>,
	<pawel.moll@....com>, <mark.rutland@....com>,
	<swarren@...dotorg.org>, <ijc+devicetree@...lion.org.uk>,
	<rob@...dley.net>, <bcousson@...libre.com>, <tony@...mide.com>,
	<linux@....linux.org.uk>, <grant.likely@...aro.org>,
	<s.nawrocki@...sung.com>, <galak@...eaurora.org>,
	<devicetree@...r.kernel.org>, <linux-doc@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-usb@...r.kernel.org>
Subject: Re: [PATCH v2 1/7] usb: dwc3: get "usb_phy" only if the platform
 indicates the presence of PHY's

On Tue, Dec 03, 2013 at 12:39:50PM +0200, Heikki Krogerus wrote:
> Hi,
> 
> On Thu, Oct 17, 2013 at 09:54:26AM -0500, Felipe Balbi wrote:
> > On Wed, Oct 16, 2013 at 04:27:26PM +0300, Roger Quadros wrote:
> > > On 10/16/2013 04:10 PM, Kishon Vijay Abraham I wrote:
> > > Do you know if there are users of dwc3 other than exynos5250 and omap5?
> > > If not, we should get rid of the old USB PHY altogether.
> > 
> > Intel's Baytrail, at least. But they don't use DT.
> 
> I don't see any use for the generic-phy when the device is enumerated
> from PCI. If dwc3 can live without phys, there should not be any
> problem dropping the old USB PHY support.

yeah, I don't want to drop PHY support, I want to require everybody to
provide a PHY, otherwise we have too many options to handle and that's
never clean.

-- 
balbi

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