linux-kernel - Re: [PATCH 0/5] Add phy support for AM335X platform using Generic PHy framework

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Date:	Wed, 10 Jul 2013 10:26:25 +0530
From:	George Cherian <george.cherian@...com>
To:	Kishon Vijay Abraham I <kishon@...com>
CC:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	<linux-usb@...r.kernel.org>, <balbi@...com>,
	<linux-kernel@...r.kernel.org>, <gregkh@...uxfoundation.org>,
	<linux-omap@...r.kernel.org>
Subject: Re: [PATCH 0/5] Add phy support for AM335X platform using Generic
 PHy framework

On 7/9/2013 5:05 PM, Kishon Vijay Abraham I wrote:
> Hi,
>
> On Tuesday 09 July 2013 11:10 AM, George Cherian wrote:
>> On 7/9/2013 1:14 AM, Sebastian Andrzej Siewior wrote:
>>> On 07/08/2013 12:43 PM, George Cherian wrote:
>>>> This patch series adds phy support for AM335X platform.
>>>> This patch series is based on Generic PHY framework [1].
>>>>
>>>>
>>>> This series has
>>>>      - adds dual musb instances support for am335x platform (just for testing)
>>>>      - adds phy-amxxxx-usb driver used in AMxxxx platforms
>>>>      - adds dt  bindings for the phys
>>>>      - removes usb-phy and replaced with generic phy apis in glue layer
>>> No, I don't like this all. You did the one thing I tried to avoid while
>>> posting my quick-and-dirty phy driver recently: You duplicated a lot of
>>> code which can be served by the nop driver and added only power
>>> on/power off callbacks.
>> I wanted to add phy wakeup control also, but currently phy_ops  dont have an op
>> for wkup_ctrl
>> Kishon, Can we add one?
> Since this should be a capability of the PHY, can't we have wkup_ctrl always
> enabled if the PHY has such a capability?

No, we cant have wakeup always enabled. Normally we enable it only when 
we go to low power states and
if the user needs USB a wakeup source.

So how about enable/disable  phy wakeup from phy suspend/resume?
> or if it needs more user control,
> should we implement a sysfs entry to enable wakeup?

Nope, I dont want to create another sysfs entry.
>
> Thanks
> Kishon


-- 
-George

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