linux-kernel - Re: [PATCH] gpio: Emma Mobile GPIO driver V2

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Message-Id: <20120518225625.28C643E07C8@localhost>
Date:	Fri, 18 May 2012 16:56:25 -0600
From:	Grant Likely <grant.likely@...retlab.ca>
To:	Olof Johansson <olof@...om.net>, "Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	Magnus Damm <magnus.damm@...il.com>,
	linux-kernel@...r.kernel.org, linus.walleij@...ricsson.com,
	arnd@...db.de, linux-sh@...r.kernel.org, horms@...ge.net.au,
	lethal@...ux-sh.org
Subject: Re: [PATCH] gpio: Emma Mobile GPIO driver V2

On Wed, 16 May 2012 15:54:16 -0700, Olof Johansson <olof@...om.net> wrote:
> On Wed, May 16, 2012 at 3:37 PM, Rafael J. Wysocki <rjw@...k.pl> wrote:
> > On Thursday, May 17, 2012, Olof Johansson wrote:
> >> On Wed, May 16, 2012 at 1:05 PM, Rafael J. Wysocki <rjw@...k.pl> wrote:
> >> > On Wednesday, May 16, 2012, Linus Walleij wrote:
> >> >> On Wed, May 16, 2012 at 12:15 PM, Magnus Damm <magnus.damm@...il.com> wrote:
> >> >>
> >> >> > Do you guys have any preferences how to merge this?
> >> >> >
> >> >> > Can I include it together with the EMEV2 SoC bits perhaps? That may be
> >> >> > easy so we can keep track of the platform data header file dependency.
> >> >>
> >> >> For ux500 I made a special "gpio and pins" branch and sent through ARM SoC.
> >> >
> >> > The problem is we have a patch depending on the $subject one in the EMEV2
> >> > series and it would be better to keep them both together if that's not
> >> > a big deal.
> >>
> >> Dependencies are fine, as long as they are not circular. You can
> >> either pull in the gpio/pins branch into the EMEV2 branch, or base it
> >> on it.
> >
> > I guess I'll try to merge the gpio/pins into the EMEV2 branch.
> 
> By the way, I should have mentioned that if the dependencies are only
> for building and not for context when applying patches, then it's
> sufficient to let us know in the pull request so we merge the branches
> in the right order when sending to Linus (so we maintain
> bisectability).

Really?  I don't think that works. The actually commit point will
always be unbuildable regardless of the merge order in mainline.  If
there is a dependency then the dependency must be merged into the
working branch before applying the commit.

g.

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