Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934999AbdCWTCt (ORCPT ); Thu, 23 Mar 2017 15:02:49 -0400 Received: from mail-pf0-f193.google.com ([209.85.192.193]:36625 "EHLO mail-pf0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933610AbdCWTCr (ORCPT ); Thu, 23 Mar 2017 15:02:47 -0400 Subject: Re: Query on DT overlay support. To: Rob Herring , Nava kishore Manne References: Cc: "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Srinivas Goud , Pantelis Antoniou , David Gibson From: Frank Rowand Message-ID: <58D41BC1.9070203@gmail.com> Date: Thu, 23 Mar 2017 12:02:25 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1162 Lines: 39 (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 > 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