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

From: delicious quinoa
Date: Thu Feb 21 2013 - 16:26:04 EST


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?

Thanks,
Alan Tull
Altera Corp

On Fri, Jan 4, 2013 at 1:31 PM, Pantelis Antoniou
<panto@xxxxxxxxxxxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxxxx
> https://lists.ozlabs.org/listinfo/devicetree-discuss
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