[PATCH 1/3] reset: Add of_reset_control_get

[Maxime Ripard]

On Wed, Jan 08, 2014 at 12:11:34PM +0100, Philipp Zabel wrote:
> Am Mittwoch, den 08.01.2014, 11:38 +0100 schrieb Maxime Ripard:
> > On Mon, Jan 06, 2014 at 06:42:51PM +0100, Philipp Zabel wrote:
> > > Am Samstag, den 21.12.2013, 09:42 +0100 schrieb Thomas Petazzoni:
> > > > Maxime, Philipp,
> > > > 
> > > > On Fri, 20 Dec 2013 22:41:07 +0100, Maxime Ripard wrote:
> > > > > In some cases, you might need to deassert from reset an hardware block that
> > > > > doesn't associated to a struct device (CPUs, timers, etc.).
> > > > > 
> > > > > Add a small helper to retrieve the reset controller from the device tree
> > > > > without the need to pass a struct device.
> > > > > 
> > > > > Signed-off-by: Maxime Ripard <maxime.ripard at free-electrons.com>
> > > > > ---
> > > > >  drivers/reset/core.c  | 39 ++++++++++++++++++++++++++++++---------
> > > > >  include/linux/reset.h |  4 ++++
> > > > >  2 files changed, 34 insertions(+), 9 deletions(-)
> > > > 
> > > > I'd like to add that I have the exact same need as Maxime. Maxime needs
> > > > of_reset_control_get() for timers, and in my case, I need it for CPUs,
> > > > since I associated a reset controller to CPU nodes in my DT.
> > > > 
> > > > Funnily, even though Maxime and I work like 3 meters away from each
> > > > other, both of us came up independently with almost exactly the same
> > > > implementation to solve the exact same problem, without talking to each
> > > > other about this need. It's only yesterday that we discovered we've had
> > > > to solve the same problem.
> > > > 
> > > > So, definitely looking forward to seeing the feedback about this.
> > > > 
> > > > Thanks!
> > > 
> > > This looks like a useful addition. I'll reorder the GPIO reset patch for
> > > this.
> > 
> > How do you want to get this merged? You'll probably want to take this
> > patch, and patches 2/3 and 3/3 depend on some patches merged by Daniel
> > Lezcano (that I forgot to CC on this, I'll resend).
> > 
> > Maybe the best way would be simply to merge this one for 3.14 through
> > your branch, and merge the two other patches in 3.15.
> 
> Alright, this is applied to my branch. I'll wait a bit for feedback on
> the GPIO reset patches and then send a pull request.

Great then, thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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