linux-kernel - RE: [RFC PATCH 00/12] arm/tegra: Initialize GPIO & pinmux from DT

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Date:	Mon, 15 Aug 2011 09:07:16 -0700
From:	Stephen Warren <swarren@...dia.com>
To:	Shawn Guo <shawn.guo@...escale.com>
CC:	Grant Likely <grant.likely@...retlab.ca>,
	Colin Cross <ccross@...roid.com>,
	Erik Gilling <konkers@...roid.com>,
	Olof Johansson <olof@...om.net>,
	Russell King <linux@....linux.org.uk>,
	"devicetree-discuss@...ts.ozlabs.org" 
	<devicetree-discuss@...ts.ozlabs.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: RE: [RFC PATCH 00/12] arm/tegra: Initialize GPIO & pinmux from DT

Shawn Guo wrote at Saturday, August 13, 2011 7:09 AM:
> On Fri, Aug 12, 2011 at 04:54:45PM -0600, Stephen Warren wrote:
> > This patch modifies Tegra's device tree support to remove the dependency
> > on harmony_pinmux_init(), thus making it completely board-independent.
> >
> > Some notes:
> >
...
> > * tegra_pinmux_probe_dt() enumerates all legal pingroup names, and searches
> >   for a pinmux controller subnode of that name, then processes each one
> >   that is found. An alternative that some may prefer would be to enumerate
> >   each child node of the pinmux controller, and have each node contain an
> >   explicit pingroup name property instead. Does anyone have any preference
> >   here? I suppose the latter option would obviate the need to add
> >   of_find_child_node_by_name().
>
> I agree with Jamie that the latter option seems better/simper.

OK, I'll flip the iteration around.

...
> >  arch/arm/boot/dts/tegra-harmony.dts          |  479 ++++++++++++++++++++++++++
> >  arch/arm/boot/dts/tegra-seaboard.dts         |  409 ++++++++++++++++++++++
> >  arch/arm/boot/dts/tegra20.dtsi               |    5 +
> >  arch/arm/mach-tegra/Makefile                 |    1 -
> >  arch/arm/mach-tegra/board-dt.c               |   12 +-
> >  arch/arm/mach-tegra/board-harmony-pinmux.c   |    8 +
> >  arch/arm/mach-tegra/board-paz00-pinmux.c     |    8 +
> >  arch/arm/mach-tegra/board-seaboard-pinmux.c  |    9 +-
> >  arch/arm/mach-tegra/board-trimslice-pinmux.c |    7 +
> >  arch/arm/mach-tegra/devices.c                |   10 +
> >  arch/arm/mach-tegra/devices.h                |    2 +
> >  arch/arm/mach-tegra/pinmux.c                 |  136 ++++++++
> >  drivers/gpio/gpio-tegra.c                    |   56 +++-
> >  drivers/of/base.c                            |   18 +
> >  include/linux/of.h                           |    2 +
> >  15 files changed, 1138 insertions(+), 24 deletions(-)
> >
> Generally, you need to document the bindings you come with in
> Documentation/devicetree/bindings/

Uggh. I must have run format-patch on the wrong commit ID; the last thing
I did was to add a couple commits containing the documentation:-( I really
shouldn't try to post patch series last thing on Friday...

-- 
nvpublic

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