On Fri, Apr 18, 2014 at 04:15:51PM +0100, Mark Brown wrote: > On Thu, Apr 17, 2014 at 12:06:34PM +0200, Carlo Caione wrote: > > > I'm fighting with a small issue when using the > > regulator_bulk_register_supply_alias(). Problem is that when using the > > .parent_supplies entry in the MFD driver, I hit the > > > > WARN_ON(!list_empty(&dev->devres_head)); > > > > in linux/drivers/base/dd.c#L272, but, apart from the warning, > > everything seems to work correctly. > > A possible explanation I gave myself is that in the mfd_add_device() > > we try to use the devm_* API when the regulator device is not bound to > > the driver yet (I found some information here > > http://lists.infradead.org/pipermail/linux-arm-kernel/2012-June/104442.html). > > Is this the case? > > Without knowing more about the case you're hitting it's hard to say - I > do run a board which exercises the API for a MFD (with the arizona > drivers) regularly and haven't noticed an issue so there must be > something different about what you're trying to do. I'm having a really hard time with this problem, so any hint is welcome :) The small modification I'm using on top of the patches in this series is here: http://bpaste.net/show/228330/ Unfortunately as I said I got this when booting: http://bpaste.net/show/nUhUTzELT32v9HNPathL/ Thanks, -- Carlo Caione -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
