linux-kernel - Re: [PATCH 6/8] phy: core: Support regulator supply for PHY power

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Date:	Tue, 8 Jul 2014 11:48:35 +0530
From:	Kishon Vijay Abraham I <kishon@...com>
To:	Greg KH <gregkh@...uxfoundation.org>
CC:	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 6/8] phy: core: Support regulator supply for PHY power

Hi Greg,

On Tuesday 08 July 2014 07:15 AM, Greg KH wrote:
> On Mon, Jul 07, 2014 at 12:18:23PM +0530, Kishon Vijay Abraham I wrote:
>> From: Roger Quadros <rogerq@...com>
>>
>> Some PHYs can be powered by an external power regulator.
>> e.g. USB_HS PHY on DRA7 SoC. Make the PHY core support a
>> power regulator.
>>
>> Signed-off-by: Roger Quadros <rogerq@...com>
>> Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
>> ---
>>  drivers/phy/phy-core.c  |   26 ++++++++++++++++++++++++++
>>  include/linux/phy/phy.h |    2 ++
>>  2 files changed, 28 insertions(+)
> 
> This looks like a new feature :(
> 
> again, I can't take that for 3.16-final, you know better...

In the outset it looks like a new feature (which actually is) but it actually
is needed to get USB and SATA working in DRA7xx. It was working before since
these regulators were *always on* before. But now the the users of these
regulators should explicitly enable it.

Thanks
Kishon
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