On Oct 27, 2008, at 7:04 PM, David Gibson wrote:
On Mon, Oct 27, 2008 at 09:15:38AM -0500, Kumar Gala wrote:
On Oct 26, 2008, at 6:40 PM, David Gibson wrote:
On Fri, Oct 24, 2008 at 09:29:21AM -0700, Yoder Stuart wrote:
-----Original Message-----
From:
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rg
[mailto:devicetree-discuss-bounces+stuart.yoder=freescale.com@
ozlabs.org] On Behalf Of Kumar Gala
Sent: Friday, October 24, 2008 9:19 AM
To: devicetree-discuss
Subject: Re: generating a phandle w/libfdt?
On Oct 24, 2008, at 8:11 AM, Kumar Gala wrote:
In some work I'm doing I noticed we don't have any APIs to
generate
a phandle via libfdt.
was wondering if anyone had ideas on this.
In first thought it seems we have to scan through the whole blob
looking for the largest phandle id and than +1 it to generate the
next "valid" id. Any other ideas on how to do this more
efficiently?
The other question is there a way today to create a phandle even
if
there isn't a reference to it elsewhere in a .dts?
We had this issue and the 'hack' was to create a phandle property
in the node itself, so it was self-referenced. That caused DTC
to allocate a phandle. We then could reference the node from
dynamically generated nodes.
That's nasty. I should add a way to make dtc generate a phandle
for a
node, even if it's not referenced from elsewhere. Just need to
think
of a decent syntax.
What if we just have it do that if we have a "linux,phandle" property
w/o a value in the .dts?
Hrm. Normally that would create a property named "linux,phandle" with
a zero-length value. I'm disinclined to special case this.
Why? linux,phandle is already special. What does it mean if a
linux,phandle has no value?
- k
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