From patchwork Wed Jan 21 15:53:09 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ricardo Ribalda Delgado X-Patchwork-Id: 5678501 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 606B8C058D for ; Wed, 21 Jan 2015 15:53:36 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 84BDD204AF for ; Wed, 21 Jan 2015 15:53:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B90C5204AB for ; Wed, 21 Jan 2015 15:53:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754531AbbAUPxa (ORCPT ); Wed, 21 Jan 2015 10:53:30 -0500 Received: from mail-la0-f44.google.com ([209.85.215.44]:50687 "EHLO mail-la0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753971AbbAUPxS (ORCPT ); Wed, 21 Jan 2015 10:53:18 -0500 Received: by mail-la0-f44.google.com with SMTP id s18so7717444lam.3; Wed, 21 Jan 2015 07:53:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=W9yc9bhoDdCcIax63pwO1V4BTwb7ovPPb299Udp58vI=; b=O/89gaW7Uc9TYjQAX7lFxo8LVlKSyxuXfWgL/DVJAzkulLXEh4TITXQMgxRz02pBiT Zc5IzKr1XEZCVmaMbBK2WHycLZVH6VogBf/6EbmA4v3X30myWXEl8856/8wq8Vxn76LI PStl4hCq9g4MYd2xjWdrbzLInqgp1CMnTj/YqZ3FxIqBBWwSjkD11/DYOHqya0D6+sgG lrLndPAHjsp043c0B8hsHNZgbXFbbubr6iUOgulg87FOjcOXiMxXMb8LEDmyCkSZV+XZ ET88o95I7IDxvnoVQ52s71JvNt9v2Caboi5cbfSkTWKASATg7AtOs77G/YUCfu4FvQmr 2ZaA== X-Received: by 10.112.72.197 with SMTP id f5mr44274425lbv.21.1421855596240; Wed, 21 Jan 2015 07:53:16 -0800 (PST) Received: from neopili.qtec.com (cpe.xe-3-0-1-778.vbrnqe10.dk.customer.tdc.net. [80.197.57.18]) by mx.google.com with ESMTPSA id sj2sm3035146lac.0.2015.01.21.07.53.14 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 21 Jan 2015 07:53:15 -0800 (PST) From: Ricardo Ribalda Delgado To: Mark Brown , Michal Simek , =?UTF-8?q?S=C3=B6ren=20Brinkmann?= , linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Ricardo Ribalda Delgado Subject: [PATCH 2/3] spi/xilinx: Support for spi mode LSB_FIRST Date: Wed, 21 Jan 2015 16:53:09 +0100 Message-Id: <1421855590-9210-3-git-send-email-ricardo.ribalda@gmail.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1421855590-9210-1-git-send-email-ricardo.ribalda@gmail.com> References: <1421855590-9210-1-git-send-email-ricardo.ribalda@gmail.com> Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, T_DKIM_INVALID, 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 Hardware supports LSB_FIRST mode. Support it also in the driver. Signed-off-by: Ricardo Ribalda Delgado --- drivers/spi/spi-xilinx.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c index 2ea4ca5..b8ce58d 100644 --- a/drivers/spi/spi-xilinx.c +++ b/drivers/spi/spi-xilinx.c @@ -34,7 +34,8 @@ #define XSPI_CR_MASTER_MODE 0x04 #define XSPI_CR_CPOL 0x08 #define XSPI_CR_CPHA 0x10 -#define XSPI_CR_MODE_MASK (XSPI_CR_CPHA | XSPI_CR_CPOL) +#define XSPI_CR_MODE_MASK (XSPI_CR_CPHA | XSPI_CR_CPOL | \ + XSPI_CR_LSB_FIRST) #define XSPI_CR_TXFIFO_RESET 0x20 #define XSPI_CR_RXFIFO_RESET 0x40 #define XSPI_CR_MANUAL_SSELECT 0x80 @@ -194,6 +195,8 @@ static void xilinx_spi_chipselect(struct spi_device *spi, int is_on) cr |= XSPI_CR_CPHA; if (spi->mode & SPI_CPOL) cr |= XSPI_CR_CPOL; + if (spi->mode & SPI_LSB_FIRST) + cr |= XSPI_CR_LSB_FIRST; xspi->write_fn(cr, xspi->regs + XSPI_CR_OFFSET); /* We do not check spi->max_speed_hz here as the SPI clock