linux-kernel - Re: [PATCH 0/6] Introducing Device Tree Overlays

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Message-Id: <3A37C4DA-4D4D-4370-8305-15625B923E67@antoniou-consulting.com>
Date:	Thu, 21 Feb 2013 13:53:04 -0800
From:	Pantelis Antoniou <panto@...oniou-consulting.com>
To:	delicious quinoa <delicious.quinoa@...il.com>
Cc:	linux-doc@...r.kernel.org, Koen Kooi <koen@...inion.thruhere.net>,
	Russ Dill <Russ.Dill@...com>, Matt Porter <mporter@...com>,
	devicetree-discuss@...ts.ozlabs.org,
	Rob Herring <rob.herring@...xeda.com>,
	linux-omap@...r.kernel.org, Matt Ranostay <mranostay@...il.com>,
	linux-kernel@...r.kernel.org, Rob Clark <robdclark@...il.com>,
	Joel A Fernandes <agnel.joel@...il.com>
Subject: Re: [PATCH 0/6] Introducing Device Tree Overlays

Hi Alan,

On Feb 21, 2013, at 1:25 PM, delicious quinoa wrote:

> I like where this is heading.  I'm interested in a use case where IP
> can be loaded into a FPGA, then add a blob to the device tree and load
> some drivers.
> 
> I see your github tree.  If I wanted to cherry-pick your code and play
> around with it, which branch should I use?  not-capebus-21?
> 

not-capebus-v21 is the latest one and indeed that has it in.

Please note that I had some other FPGA people interested with it.
Perhaps we can go through use cases to come up with your requirements


> Thanks,
> Alan Tull
> Altera Corp
> 

Regards

-- Pantelis

> On Fri, Jan 4, 2013 at 1:31 PM, Pantelis Antoniou
> <panto@...oniou-consulting.com> wrote:
>> The following patchset introduces Device Tree overlays, a method
>> of dynamically altering the kernel's live Device Tree.
>> 
>> This patchset is against mainline as of Friday Jan 4 2013.
>> (4956964 Merge tag 'driver-core-3.8-rc2' of \
>>        git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core)
>> 
>> Note that a separate patch for the DTC compiler has been posted and
>> is required to compile the DTS files according to the documentation.
>> The patch is "dtc: Dynamic symbols & fixup support"
>> 
>> An implementation patchset for a beaglebone cape loader will follow,
>> but if you want to check out a working kernel for the beaglebone please
>> pull from:
>> 
>> git://github.com/pantoniou/linux-bbxm.git branch not-capebus-v8
>> 
>> Pantelis Antoniou (6):
>>  OF: Introduce device tree node flag helpers.
>>  OF: export of_property_notify
>>  OF: Export all DT proc update functions
>>  OF: Introduce utility helper functions
>>  OF: Introduce Device Tree resolve support.
>>  OF: Introduce DT overlay support.
>> 
>> .../devicetree/dynamic-resolution-notes.txt        |  25 +
>> Documentation/devicetree/overlay-notes.txt         | 179 +++++
>> drivers/of/Kconfig                                 |  19 +
>> drivers/of/Makefile                                |   4 +-
>> drivers/of/base.c                                  | 114 +--
>> drivers/of/overlay.c                               | 831 +++++++++++++++++++++
>> drivers/of/resolver.c                              | 394 ++++++++++
>> drivers/of/util.c                                  | 253 +++++++
>> include/linux/of.h                                 | 243 ++++++
>> 9 files changed, 2005 insertions(+), 57 deletions(-)
>> create mode 100644 Documentation/devicetree/dynamic-resolution-notes.txt
>> create mode 100644 Documentation/devicetree/overlay-notes.txt
>> create mode 100644 drivers/of/overlay.c
>> create mode 100644 drivers/of/resolver.c
>> create mode 100644 drivers/of/util.c
>> 
>> --
>> 1.7.12
>> 
>> _______________________________________________
>> devicetree-discuss mailing list
>> devicetree-discuss@...ts.ozlabs.org
>> https://lists.ozlabs.org/listinfo/devicetree-discuss

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