linux-kernel - [Regression?] Removed regulator support in ehci-omap

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Message-ID: <20110411093214.GA18215@rainbow>
Date:	Mon, 11 Apr 2011 13:32:14 +0400
From:	Dmitry Artamonow <mad_soft@...ox.ru>
To:	Keshava Munegowda <keshava_mgowda@...com>,
	Felipe Balbi <balbi@...com>
Cc:	linux-usb@...r.kernel.org, linux-omap@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [Regression?] Removed regulator support in ehci-omap

Hi, guys!

Can anyone explain why regulator support has been removed from ehci-omap
driver in commit 19403165 ("usb: host: omap: ehci and ohci simplification")[1]?
In 2.6.37/2.6.38 it was enough to apply simple patch[2] adding regulators
description to board file to make USB work on omap3evm board (because USB PHY
is powered via regulator). But now it won't work anymore in 2.6.39-rc2.
BTW, I suspect that this commit also broke USB on omap3pandora board, as it
defines "hsusb0" regulator supply in its board file:

[mad@...house linux-2.6]$ git grep hsusb arch/arm/mach-omap2/board*
arch/arm/mach-omap2/board-omap3pandora.c:       REGULATOR_SUPPLY("hsusb0", "ehci

I can't find any clues in commit message on why regulators support was removed
and what should be used instead if this removal was intentional, so I'm a bit
puzzled about what to do now. Any help will be appreciated.

[1] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=19403165c272cc4ed00c97973e7271714b009708
[2] http://arago-project.org/git/projects/?p=linux-omap3.git;a=commitdiff;h=2ec611981ad76256d5034ae36708d807142bed1c

-- 
Best regards,
Dmitry "MAD" Artamonow

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