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From: AChew@nvidia.com (Andrew Chew)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH V4 6/9] ARM: mxs: Provide regulator to pwm-backlight
Date: Tue, 19 Mar 2013 14:31:34 -0700	[thread overview]
Message-ID: <643E69AA4436674C8F39DCC2C05F7638629CD2FDF4@HQMAIL03.nvidia.com> (raw)
In-Reply-To: <201303192227.21717.marex@denx.de>

> Dear Andrew Chew,
> 
> > The pwm-backlight driver now takes a mandatory regulator that is
> > gotten during driver probe.  Initialize a dummy regulator to satisfy
> > this requirement.
> >
> > Signed-off-by: Andrew Chew <achew@nvidia.com>
> 
> Do we really need a mandatory regulator? Why can't it be optional?
> 
> Best regards,
> Marek Vasut

Because for those using board setup code (and not devicetree), it was
not possible to distinguish between opting out of the regulator, and
deferred probe, without adding something to the platform data that
board setup code needed to fill in anyway.

  reply	other threads:[~2013-03-19 21:31 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-19 18:59 [PATCH V4 0/9] Add mandatory regulator for all users of pwm-backlight Andrew Chew
2013-03-19 18:59 ` [PATCH V4 1/9] ARM: OMAP: board-4430sdp: Provide regulator to pwm-backlight Andrew Chew
2013-03-19 18:59 ` [PATCH V4 2/9] ARM: S3C24XX: " Andrew Chew
2013-03-19 18:59 ` [PATCH V4 3/9] ARM: pxa: " Andrew Chew
2013-03-19 18:59 ` [PATCH V4 4/9] ARM: EXYNOS: " Andrew Chew
2013-03-19 18:59 ` [PATCH V4 5/9] unicore32: " Andrew Chew
2013-03-19 18:59 ` [PATCH V4 6/9] ARM: mxs: " Andrew Chew
2013-03-19 21:27   ` Marek Vasut
2013-03-19 21:31     ` Andrew Chew [this message]
2013-03-19 21:35       ` Marek Vasut
2013-03-19 22:10     ` Stephen Warren
2013-03-20  8:23       ` Mark Brown
2013-03-20 14:03         ` Marek Vasut
2013-03-20  3:13   ` Shawn Guo
2013-03-19 18:59 ` [PATCH V4 7/9] ARM: vt8500: " Andrew Chew
2013-03-20 18:18   ` [Bulk] " Tony Prisk
2013-03-19 18:59 ` [PATCH V4 8/9] ARM: tegra: " Andrew Chew
2013-03-21 20:01   ` Stephen Warren
2013-03-22 10:29   ` Thierry Reding
2013-03-19 18:59 ` [PATCH V4 9/9] pwm_bl: Add mandatory backlight enable regulator Andrew Chew
2013-03-20 18:00   ` Stephen Warren
2013-03-20 22:19     ` Thierry Reding
2013-03-20  2:14 ` [PATCH V4 0/9] Add mandatory regulator for all users of pwm-backlight Shawn Guo
2013-03-20  2:24   ` Alex Courbot
2013-03-20  3:08     ` Shawn Guo
2013-03-20  7:13     ` Tony Prisk
2013-03-22  1:57 ` Alex Courbot

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