Re: [GIT PULL] Second Round of Renesas ARM Based SoC DT Updates for v4.10

[Simon Horman <horms@verge.net.au>]

On Wed, Nov 23, 2016 at 10:57:18AM +0100, Simon Horman wrote:
> On Mon, Nov 21, 2016 at 11:53:18AM +0100, Simon Horman wrote:
> > On Fri, Nov 18, 2016 at 05:49:29PM -0800, Olof Johansson wrote:
> > > On Thu, Nov 17, 2016 at 03:11:45PM +0100, Simon Horman wrote:
> > > > Hi Olof, Hi Kevin, Hi Arnd,
> > > > 
> > > > Please consider these second round of Renesas ARM based SoC DT updates for v4.10.
> > > > 
> > > > This pull request is based on a merge of:
> > > > 
> > > > * The previous round of such requests, tagged as renesas-dt-for-v4.10,
> > > >   which I have already sent a pull-request for.
> > > > * The rzg-clock-defs tag of Geert Uytterhoeven's renesas-driver's tree.
> > > >   This is to provide dependencies for adding the r8a7743 and r8a7745 SoCs.
> > > > * The "Second Round of Renesas ARM Based SoC Drivers Updates for v4.10",
> > > >   tagged as renesas-drivers2-for-v4.10, which I have also sent a pull
> > > >   request for. This is included to provide dependencies for adding device
> > > >   nodes for PRR, and adding the r8a7743 and r8a7745 SoCs.
> > > 
> > > Again, nack. And again, I don't understand why you create dependencies that
> > > aren't needed. Please fix.
> > 
> > Hi Olof,
> > 
> > I agree that calling out PRR above was incorrect. Please disregard that.
> > 
> > However, there are dependencies for adding r8a7743 and r8a7745 SoCs
> > in the form of header files:
> > 
> > * The rzg-clock-defs tag provides dt-bindings/clock/r8a774[35]-cpg-mssr.h
> > * The renesas-drivers2-for-v4.10 tag provides
> >   dt-bindings/power/r8a774[35]-sysc.h
> > 
> > The drivers branches are usually pretty light-weight. But this time it is a
> > bit heavy and you rightly raised some questions about it. After some
> > discussion with Geert we'd like to suggest that for future releases
> > we provide a "driver-defs" branch which both driver code and DT can
> > depend on. Thus avoiding pulling (non essential) driver changes into the DT
> > branch.
> > 
> > Unfortunately its a bit late to do that for v4.10 as the r8a7743 sysc
> > driver and its defines were already accepted accepted together
> > (renesas-drivers-for-v4.10 tag). So for this release we would be grateful
> > if you could re-consider the renesas-drivers2-for-v4.10 tag given the
> > feedback which Geert has provided. And in turn re-consider this pull
> > request.
> 
> Hi again,
> 
> while the above remains my preferred option I would like to put another one
> on the table in case it would help in any way for v4.10.
> 
> I could split this pull-request up as follows:
> 1. The patches that add the r8a774[35] SoCs:
>    - r8a7743 depends on renesas-drivers-for-v4.10 and rzg-clock-defs
>    - r8a7745 depends on renesas-drivers2-for-v4.10 and rzg-clock-defs
> 2. The patches rest of the patches
>    - I believe these have no special dependencies

After some discussion on IRC with Arnd I think it makes sense to simplify
the dependencies pulled in to this pull request to the extent of
only pulling in patches which provide headers for macros used in DT.

I am working on making this so.