linux-kernel - Re: [PATCH 1/3] phy: core: Add devm_of_phy_get_by

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Date:	Tue, 31 Mar 2015 21:30:50 +0530
From:	Kishon Vijay Abraham I <kishon@...com>
To:	Dmitry Torokhov <dtor@...gle.com>,
	Arun Ramamurthy <arun.ramamurthy@...adcom.com>
CC:	Tony Prisk <linux@...sktech.co.nz>,
	Alan Stern <stern@...land.harvard.edu>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Arnd Bergmann <arnd@...db.de>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-usb@...r.kernel.org>, Anatol Pomazau <anatol@...gle.com>,
	Jonathan Richardson <jonathar@...adcom.com>,
	Scott Branden <sbranden@...adcom.com>,
	Ray Jui <rjui@...adcom.com>,
	<bcm-kernel-feedback-list@...adcom.com>
Subject: Re: [PATCH 1/3] phy: core: Add devm_of_phy_get_by_index to phy-core



On Friday 27 March 2015 04:37 AM, Dmitry Torokhov wrote:
> On Wed, Mar 25, 2015 at 05:04:32PM -0700, Arun Ramamurthy wrote:
>>
>>
>> On 15-03-25 03:03 PM, Kishon Vijay Abraham I wrote:
>>> Hi,
>>>
>>> On Saturday 21 March 2015 02:59 AM, Arun Ramamurthy wrote:
>>>>
>>>>
>>>> On 15-03-20 02:26 PM, Dmitry Torokhov wrote:
>>>>> Hi Arun,
>>>>>
>>>>> On Fri, Mar 20, 2015 at 02:07:08PM -0700, Arun Ramamurthy wrote:
>>>>>> Adding devm_of_phy_get_by_index to get phys by supplying an index
>>>>>> and not a phy name when multiple phys are declared
>>>
>>> I think a bit more explanation on why get_by_index is needed here.
>> Thanks Kison. Can you be more specific? I am unsure of what more I
>> can explain here.
>
> We just need to mention that some generic drivers, such as ehci, may use
> multiple phys, and for such drivers referencing phy(s) by name(s) does
> not make sense. Instead of inventing elaborate naming schemes and
> producing custom code to iterate over names, such drivers are better of
> using nameless phy bindings and using this newly introduced API to
> iterate through them.

+1

-Kishon
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