From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935149AbcA1WUu (ORCPT ); Thu, 28 Jan 2016 17:20:50 -0500 Received: from mail-bn1bon0060.outbound.protection.outlook.com ([157.56.111.60]:48329 "EHLO na01-bn1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S933533AbcA1WUr (ORCPT ); Thu, 28 Jan 2016 17:20:47 -0500 Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=Suravee.Suthikulpanit@amd.com; Subject: Re: [PATCH 00/13] dtb: amd: Miscelleneous Updates for AMD Seattle DTS To: Olof Johansson References: <1453929121-12171-1-git-send-email-Suravee.Suthikulpanit@amd.com> CC: Rob Herring , Pawel Moll , "Mark Rutland" , Ian Campbell , Kumar Gala , Arnd Bergmann , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "arm@kernel.org" , , Thomas Lendacky , From: Suravee Suthikulanit Message-ID: <56AA9436.60800@amd.com> Date: Thu, 28 Jan 2016 16:20:38 -0600 User-Agent: Mozilla/5.0 (Windows NT 6.1; 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You are correct that the FW comes with DT, and in typical case, you wouldn't need this. > Are you aware of other reasons to have it here? I just foresee > divergence and conflicts between the two. It was quite obvious before > this update when the FW-provided DT was a lot more complete than what > we had in the kernel tree. However, there are still new/updated drivers being developed, and sometimes requires new/changes in DT binding. So, the DT that comes with the FW can get out of date, and will lack the support for new drivers. Certain version of the FW allows overriding the DT that comes with the FW. So, we are providing the in-kernel DT to allow developers to provide the updated device tree for newer kernels. This patch series is bringing the in-kernel DT closer to what the latest FW is providing to avoid potential conflicts. Regards, Suravee > > -Olof >