From patchwork Wed Mar 18 15:53:08 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Dooks X-Patchwork-Id: 6041231 Return-Path: X-Original-To: patchwork-linux-spi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 412ECBF90F for ; Wed, 18 Mar 2015 15:53:49 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 650B220444 for ; Wed, 18 Mar 2015 15:53:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7669020435 for ; Wed, 18 Mar 2015 15:53:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755359AbbCRPxp (ORCPT ); Wed, 18 Mar 2015 11:53:45 -0400 Received: from ducie-dc1.codethink.co.uk ([185.25.241.215]:32845 "EHLO ducie-dc1.codethink.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754998AbbCRPxo (ORCPT ); Wed, 18 Mar 2015 11:53:44 -0400 Received: from localhost (localhost [127.0.0.1]) by ducie-dc1.codethink.co.uk (Postfix) with ESMTP id 5C2A5460BD3; Wed, 18 Mar 2015 15:53:43 +0000 (GMT) X-Virus-Scanned: Debian amavisd-new at ducie-dc1.codethink.co.uk Received: from ducie-dc1.codethink.co.uk ([127.0.0.1]) by localhost (ducie-dc1.codethink.co.uk [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ld6xIhg0+de1; Wed, 18 Mar 2015 15:53:41 +0000 (GMT) Received: from rainbowdash.ducie.codethink.co.uk (rainbowdash.dyn.ducie.codethink.co.uk [10.24.2.99]) by ducie-dc1.codethink.co.uk (Postfix) with ESMTPS id 6676C4606C1; Wed, 18 Mar 2015 15:53:34 +0000 (GMT) Received: from ben by rainbowdash.ducie.codethink.co.uk with local (Exim 4.84) (envelope-from ) id 1YYGHm-000883-1u; Wed, 18 Mar 2015 15:53:34 +0000 From: Ben Dooks To: linux-kernel@lists.codethink.co.uk, linux-arm-kernel@lists.infradead.org Cc: Ben Dooks , Nicolas Ferre , Mark Brown , linux-spi@vger.kernel.org (open list:SPI SUBSYSTEM) Subject: [PATCH 09/13] spi: atmel: use endian agnostic IO Date: Wed, 18 Mar 2015 15:53:08 +0000 Message-Id: <1426693992-31163-10-git-send-email-ben.dooks@codethink.co.uk> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1426693992-31163-1-git-send-email-ben.dooks@codethink.co.uk> References: <1426693992-31163-1-git-send-email-ben.dooks@codethink.co.uk> Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Use the endian agnositc IO functions instead of the __raw ones for when the driver is in use on big-endian systems. Signed-off-by: Ben Dooks Acked-by: Nicolas Ferre --- CC: Nicolas Ferre (supporter:ATMEL SPI DRIVER) CC: Mark Brown (maintainer:SPI SUBSYSTEM) CC: linux-spi@vger.kernel.org (open list:SPI SUBSYSTEM) --- drivers/spi/spi-atmel.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c index 06de340..a2f40b1 100644 --- a/drivers/spi/spi-atmel.c +++ b/drivers/spi/spi-atmel.c @@ -180,11 +180,17 @@ | SPI_BF(name, value)) /* Register access macros */ +#ifdef CONFIG_AVR32 #define spi_readl(port, reg) \ __raw_readl((port)->regs + SPI_##reg) #define spi_writel(port, reg, value) \ __raw_writel((value), (port)->regs + SPI_##reg) - +#else +#define spi_readl(port, reg) \ + readl_relaxed((port)->regs + SPI_##reg) +#define spi_writel(port, reg, value) \ + writel_relaxed((value), (port)->regs + SPI_##reg) +#endif /* use PIO for small transfers, avoiding DMA setup/teardown overhead and * cache operations; better heuristics consider wordsize and bitrate. */