linux-kernel - Re: [PATCH RFC] usb: dwc3: Get PHY from platform specific dwc3 dt node.

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Message-ID: <20130131152527.GE4064@arwen.pp.htv.fi>
Date:	Thu, 31 Jan 2013 17:25:27 +0200
From:	Felipe Balbi <balbi@...com>
To:	Vivek Gautam <gautamvivek1987@...il.com>
CC:	kishon <kishon@...com>, Vivek Gautam <gautam.vivek@...sung.com>,
	<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-omap@...r.kernel.org>, <linux-samsung-soc@...r.kernel.org>,
	<gregkh@...uxfoundation.org>, <balbi@...com>
Subject: Re: [PATCH RFC] usb: dwc3: Get PHY from platform specific dwc3 dt
 node.

Hi,

On Thu, Jan 31, 2013 at 08:53:27PM +0530, Vivek Gautam wrote:
> >> Moreover, SoCs having multiple dwc3 controllers will have multiple
> >> PHYs, which eventually be added using usb_add_phy_dev(), and not
> >> using usb_add_phy(). So each dwc3 controller won't be able to
> >> get PHYs by simply calling devm_usb_get_phy() also.
> >
> > No. We have added usb_get_phy_dev() for that purpose in the case of non-dt.
> > I think, instead you can have a patch to use devm_usb_get_phy_dev() here and
> > in exynos platform specific code use usb_bind_phy() to bind the phy and
> > controller till you change it to dt.
> >
> 
> We have dt support for dwc3-exynos, in such case we should go ahead with
> of_platform_populate(), right ?
> But if when i use of_platform_populate() i will not be able to set
> dma_mask to dwc3->dev. :-(

do you have a special need for dma_mask because OF already sets it.

-- 
balbi

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