From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5B94FC433C1 for ; Mon, 22 Mar 2021 12:15:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2338C6198B for ; Mon, 22 Mar 2021 12:15:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229930AbhCVMOw (ORCPT ); Mon, 22 Mar 2021 08:14:52 -0400 Received: from vps0.lunn.ch ([185.16.172.187]:40068 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230263AbhCVMOZ (ORCPT ); Mon, 22 Mar 2021 08:14:25 -0400 Received: from andrew by vps0.lunn.ch with local (Exim 4.94) (envelope-from ) id 1lOJRu-00COZM-Nx; Mon, 22 Mar 2021 13:14:22 +0100 Date: Mon, 22 Mar 2021 13:14:22 +0100 From: Andrew Lunn To: Marcin Wojtas Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, gregory.clement@bootlin.com, robh+dt@kernel.org Subject: Re: [PATCH] arm64: dts: ensure backward compatibility of the AP807 Xenon Message-ID: References: <20210322003915.3199775-1-mw@semihalf.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210322003915.3199775-1-mw@semihalf.com> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Mon, Mar 22, 2021 at 01:39:15AM +0100, Marcin Wojtas wrote: > A recent switch to a dedicated AP807 compatible string for the Xenon > SD/MMC controller result in the driver not being probed when > using updated device tree with the older kernel revisions. > It may also be problematic for other OSs/firmware that use > Linux device tree sources as a reference. Resolve the problem > with backward compatibility by restoring a previous compatible > string as secondary one. > > Signed-off-by: Marcin Wojtas Reviewed-by: Andrew Lunn Andrew