Query on DT overlay support.

Query on DT overlay support.

[Nava kishore Manne]

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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 :)


Regards,
Navakishore.


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RE: Query on DT overlay support.

[Nava kishore Manne]

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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 ☺ 

                

Regards,
Navakishore.
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Re: Query on DT overlay support.

[Rob Herring]

On Thu, Mar 23, 2017 at 8:22 AM, Nava kishore Manne
<nava.manne-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org> 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
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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@xilinx.com> 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