Re: Query on DT overlay support.

[Frank Rowand]

(Adding Pantelis and dgibson to cc.)

On 03/23/17 11:32, Rob Herring wrote:
> On Thu, Mar 23, 2017 at 8:22 AM, Nava kishore Manne
> <nava.manne@xxxxxxxxxx> wrote:
>> Hi,
>>
>>
>>
>>                 This mail is regarding the DT overlay support in the Linux
>> kernel
>>
>>                 I am able to make the device-tree overlay work out of box by
>> using my own dtc complier (I mean I used the dtc compiler
>>
>>                 Available here
>> http://www.embedded-things.com/bbb/patching-the-device-tree-compiler-for-ubuntu/
>> )
>>
>>                 When can I expect the same changes in the scripts/dtc in
>> mainline????
>>
>>                 In case of any support needed for testing I can help on
>> testing the same I works in Xilinx and we had a lot of combinations to test
>> overlay J
> 
> It's already there. Landed in 4.11.
> 
> Rob
> 

One dtc feature that is still missing is what Pantelis calls "syntatic sugar".
His patch for that has not yet been accepted into the dtc project if I have
been following along correctly.

Without the syntactic sugar, the source .dts has to expose the details
of the fragment and __overlay__ nodes.

-Frank