From: Vivek Gautam <gautamvivek1987@gmail.com>
To: balbi@ti.com
Cc: kishon <kishon@ti.com>, Vivek Gautam <gautam.vivek@samsung.com>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-omap@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
gregkh@linuxfoundation.org
Subject: Re: [PATCH RFC] usb: dwc3: Get PHY from platform specific dwc3 dt node.
Date: Thu, 31 Jan 2013 21:00:37 +0530 [thread overview]
Message-ID: <CAFp+6iHvKYiF_neANRq5roAEJwhvcaLk7pAd7Dy94Z5XiDkhgA@mail.gmail.com> (raw)
In-Reply-To: <20130131152527.GE4064@arwen.pp.htv.fi>
Hi Felipe,
On Thu, Jan 31, 2013 at 8:55 PM, Felipe Balbi <balbi@ti.com> wrote:
> 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.
>
If i am not wrong of_platform_device_create_pdata() will set
"dev->dev.coherent_dma_mask = DMA_BIT_MASK(32)"
and not dma_mask.
I fact we had some discussion sometime back when we needed the same
for dwc3-exynos in the thread:
[PATCH v2 1/2] USB: dwc3-exynos: Add support for device tree
But couldn't get final node on it.
So suggestions here please. :-)
--
Thanks & Regards
Vivek
next prev parent reply other threads:[~2013-01-31 15:30 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-31 11:20 [PATCH RFC] usb: dwc3: Get PHY from platform specific dwc3 dt node Vivek Gautam
2013-01-31 11:34 ` kishon
2013-01-31 15:23 ` Vivek Gautam
2013-01-31 15:25 ` Felipe Balbi
2013-01-31 15:30 ` Vivek Gautam [this message]
2013-01-31 15:38 ` Felipe Balbi
2013-02-01 5:21 ` kishon
2013-02-01 6:22 ` Vivek Gautam
2013-02-01 6:24 ` Vivek Gautam
2013-02-01 8:50 ` Felipe Balbi
2013-02-01 8:53 ` Vivek Gautam
2013-02-01 9:43 ` Felipe Balbi
2013-02-28 14:39 ` Vivek Gautam
2013-03-01 6:41 ` Felipe Balbi
2013-03-04 15:02 ` Felipe Balbi
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