Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754448AbcCWItF (ORCPT ); Wed, 23 Mar 2016 04:49:05 -0400 Received: from webbox1416.server-home.net ([77.236.96.61]:45479 "EHLO webbox1416.server-home.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754078AbcCWIsw (ORCPT ); Wed, 23 Mar 2016 04:48:52 -0400 From: Alexander Stein To: linux-kernel@vger.kernel.org Cc: Mark Brown Subject: regmap: mmio: regression in pre-v4.6-rc1 Date: Wed, 23 Mar 2016 09:48:42 +0100 Message-ID: <1981840.HVGTg07J9M@ws-stein> User-Agent: KMail/4.14.10 (Linux/4.1.15-gentoo-r1; KDE/4.14.16; x86_64; ; ) MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 690 Lines: 16 Hi, I'm currently trying to get PCIe working on LS1021A (little-endian ARM). For link-detection I need access to a syscon perpheral (SCFG) which is attched to CPU as big-endian. The corresponding DT part is: scfg: scfg@1570000 { compatible = "fsl,ls1021a-scfg", "syscon"; reg = <0x0 0x1570000 0x0 0x10000>; big-endian; }; Based on current linus's master (a24e3d414e59ac765, "Merge branch 'akpm' (patches from Andrew)") I noticed the access is actually done as little-endian. I could track it down to commit 922a9f936e40001f ("regmap: mmio: Convert to regmap_bus and fix accessor usage"). Reverting it, the access is fine now and I get my PCIe link. Best regards, Alexander