linux-kernel - Re: [PATCH 1/3] mfd-core: Don't register supplies from add_device, add register_supply

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Message-ID: <20140519074855.GP25203@opensource.wolfsonmicro.com>
Date:	Mon, 19 May 2014 08:48:55 +0100
From:	Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	Hans de Goede <hdegoede@...hat.com>,
	Mark Brown <broonie@...aro.org>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Carlo Caione <carlo@...one.org>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-sunxi@...glegroups.com
Subject: Re: [PATCH 1/3] mfd-core: Don't register supplies from add_device,
	add register_supply_aliases()

On Mon, May 19, 2014 at 08:47:05AM +0100, Lee Jones wrote:
> > We cannot register supply alias in mfd_add_device before calling
> > platform_add_device, for 2 reasons:
> > 1) devm resources may not be registered before the (platform) drivers probe
> >    method runs
> > 2) The platform-dev's name must be set before registering the aliases which
> >    happens from platform_add_device.
> > 
> > So stop registering supply aliases from mfd_add_device, and add a
> > mfd_register_supply_aliases helper functions for the cell's plaform driver
> > probe method to use.
> > 
> > Signed-off-by: Hans de Goede <hdegoede@...hat.com>
> > ---
> >  drivers/mfd/mfd-core.c   | 37 +++++++++++++++++++++----------------
> >  include/linux/mfd/core.h |  6 +++++-
> >  2 files changed, 26 insertions(+), 17 deletions(-)
> 
> Change looks reasonable to me, but I'd like to have Mark look over the
> changes.  If he's okay with them I think it's best for this set to go
> through the MFD tree as a whole.

This should already be fixed by this patch:

mfd: core: Don't use devres functions before device is added

You had posted to say it was applied although I haven't checked
your tree for it directly.

Thanks,
Charles
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