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From: Roger Quadros <rogerq-l0cyMroinI0@public.gmane.org>
To: Marc Kleine-Budde <mkl-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
	linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	balbi-l0cyMroinI0@public.gmane.org,
	linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 1/8] usb: phy: nop: Add some parameters to platform data
Date: Tue, 12 Mar 2013 16:28:14 +0200	[thread overview]
Message-ID: <513F3B7E.8000002@ti.com> (raw)
In-Reply-To: <513F38DF.5040404-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>

On 03/12/2013 04:17 PM, Marc Kleine-Budde wrote:
> On 03/12/2013 03:12 PM, Roger Quadros wrote:
>> On 03/12/2013 01:54 PM, Marc Kleine-Budde wrote:
>>> On 03/12/2013 12:24 PM, Roger Quadros wrote:
>>>> Add clk_rate parameter to platform data. If supplied, the
>>>> NOP phy driver will program the clock to that rate during probe.
>>>>
>>>> Also add 2 flags, needs_vcc and needs_reset.
>>>> If the flag is set and the regulator couldn't be found
>>>> then the driver will bail out with -EPROBE_DEFER.
>>>
>>> Is there a platform which fills out pdata.needs_vcc and
>>> pdata.needs_reset? IMHO it makes no sense to add features for the non DT
>>> case, if there isn't any user for it.
>>>
>>
>> There can be a user in the non DT case as well. Consider the following example:
> 
> I'm just saying, let the implementation up to a real user for the non DT
> case. Beagleboard is ARM and there's no point of implementing non DT
> fall backs for ARM, IMHO.
> 

Why do you say so?

It doesn't depend on the CPU architecture. It depends on how the board designer
wired the board. A non ARM platform could also face the same problem as beagle.

It is not a non DT fallback. I believe many are still using non DT boot and it
needs to work at least till we move all functionality to purely DT.

cheers,
-roger

WARNING: multiple messages have this Message-ID (diff)
From: Roger Quadros <rogerq@ti.com>
To: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: <balbi@ti.com>, <tony@atomide.com>, <mark.rutland@arm.com>,
	<linux-kernel@vger.kernel.org>, <linux-usb@vger.kernel.org>,
	<linux-omap@vger.kernel.org>,
	<devicetree-discuss@lists.ozlabs.org>
Subject: Re: [PATCH 1/8] usb: phy: nop: Add some parameters to platform data
Date: Tue, 12 Mar 2013 16:28:14 +0200	[thread overview]
Message-ID: <513F3B7E.8000002@ti.com> (raw)
In-Reply-To: <513F38DF.5040404@pengutronix.de>

On 03/12/2013 04:17 PM, Marc Kleine-Budde wrote:
> On 03/12/2013 03:12 PM, Roger Quadros wrote:
>> On 03/12/2013 01:54 PM, Marc Kleine-Budde wrote:
>>> On 03/12/2013 12:24 PM, Roger Quadros wrote:
>>>> Add clk_rate parameter to platform data. If supplied, the
>>>> NOP phy driver will program the clock to that rate during probe.
>>>>
>>>> Also add 2 flags, needs_vcc and needs_reset.
>>>> If the flag is set and the regulator couldn't be found
>>>> then the driver will bail out with -EPROBE_DEFER.
>>>
>>> Is there a platform which fills out pdata.needs_vcc and
>>> pdata.needs_reset? IMHO it makes no sense to add features for the non DT
>>> case, if there isn't any user for it.
>>>
>>
>> There can be a user in the non DT case as well. Consider the following example:
> 
> I'm just saying, let the implementation up to a real user for the non DT
> case. Beagleboard is ARM and there's no point of implementing non DT
> fall backs for ARM, IMHO.
> 

Why do you say so?

It doesn't depend on the CPU architecture. It depends on how the board designer
wired the board. A non ARM platform could also face the same problem as beagle.

It is not a non DT fallback. I believe many are still using non DT boot and it
needs to work at least till we move all functionality to purely DT.

cheers,
-roger

  parent reply	other threads:[~2013-03-12 14:28 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-12 11:24 [PATCH 0/8] USB: PHY: nop: Device tree support for 3.10 Roger Quadros
2013-03-12 11:24 ` Roger Quadros
     [not found] ` <1363087466-32444-1-git-send-email-rogerq-l0cyMroinI0@public.gmane.org>
2013-03-12 11:24   ` [PATCH 1/8] usb: phy: nop: Add some parameters to platform data Roger Quadros
2013-03-12 11:24     ` Roger Quadros
2013-03-12 11:54     ` Marc Kleine-Budde
     [not found]       ` <513F177D.40500-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2013-03-12 14:12         ` Roger Quadros
2013-03-12 14:12           ` Roger Quadros
2013-03-12 14:17           ` Marc Kleine-Budde
     [not found]             ` <513F38DF.5040404-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2013-03-12 14:28               ` Roger Quadros [this message]
2013-03-12 14:28                 ` Roger Quadros
     [not found]                 ` <513F3B7E.8000002-l0cyMroinI0@public.gmane.org>
2013-03-12 14:42                   ` Marc Kleine-Budde
2013-03-12 14:42                     ` Marc Kleine-Budde
     [not found]                     ` <513F3EF0.3030609-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2013-03-12 15:20                       ` Roger Quadros
2013-03-12 15:20                         ` Roger Quadros
     [not found]                         ` <513F47B4.2060004-l0cyMroinI0@public.gmane.org>
2013-03-12 16:06                           ` Marc Kleine-Budde
2013-03-12 16:06                             ` Marc Kleine-Budde
2013-03-13 15:17                           ` Peter Ujfalusi
2013-03-13 15:17                             ` Peter Ujfalusi
     [not found]                             ` <514098A0.1030809-l0cyMroinI0@public.gmane.org>
2013-03-13 15:46                               ` Roger Quadros
2013-03-13 15:46                                 ` Roger Quadros
2013-03-13 15:52                               ` Marc Kleine-Budde
2013-03-13 15:52                                 ` Marc Kleine-Budde
2013-03-12 11:24   ` [PATCH 2/8] usb: phy: nop: use devm_kzalloc() Roger Quadros
2013-03-12 11:24     ` Roger Quadros
2013-03-12 11:24   ` [PATCH 3/8] usb: phy: nop: Manage PHY clock Roger Quadros
2013-03-12 11:24     ` Roger Quadros
2013-03-12 11:24   ` [PATCH 4/8] usb: phy: nop: Handle power supply regulator for the PHY Roger Quadros
2013-03-12 11:24     ` Roger Quadros
2013-03-12 11:24   ` [PATCH 5/8] usb: phy: nop: Handle RESET " Roger Quadros
2013-03-12 11:24     ` Roger Quadros
2013-03-12 11:24   ` [PATCH 6/8] usb: phy: nop: use new PHY API to register PHY Roger Quadros
2013-03-12 11:24     ` Roger Quadros
2013-03-12 11:24 ` [PATCH 7/8] usb: phy: nop: Add device tree support and binding information Roger Quadros
2013-03-12 11:24   ` Roger Quadros
2013-03-12 11:24 ` [PATCH 8/8] USB: phy: nop: Defer probe if device needs VCC/RESET Roger Quadros
2013-03-12 11:24   ` Roger Quadros

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