From patchwork Fri Dec 13 08:22:09 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Sangorrin X-Patchwork-Id: 3348021 Return-Path: X-Original-To: patchwork-ltsi-dev@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id DDEEDC0D4A for ; Sat, 14 Dec 2013 08:09:47 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 155F220780 for ; Sat, 14 Dec 2013 08:09:47 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) by mail.kernel.org (Postfix) with ESMTP id 295F8206AF for ; Sat, 14 Dec 2013 08:09:46 +0000 (UTC) Received: from mail.linux-foundation.org (localhost [IPv6:::1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 48B82BD1; Sat, 14 Dec 2013 08:06:49 +0000 (UTC) X-Original-To: ltsi-dev@lists.linuxfoundation.org Delivered-To: ltsi-dev@mail.linuxfoundation.org Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTP id AD7BA273 for ; Fri, 13 Dec 2013 08:40:09 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from imx9.toshiba.co.jp (imx9.toshiba.co.jp [202.33.96.51]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id 1E4CE1F889 for ; Fri, 13 Dec 2013 08:40:08 +0000 (UTC) Received: from imx12.toshiba.co.jp (imx12 [61.202.160.132]) by imx9.toshiba.co.jp with ESMTP id rBD8NTd5025204 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 13 Dec 2013 17:23:31 +0900 (JST) Received: from arc11.toshiba.co.jp ([133.199.90.127]) by imx12.toshiba.co.jp with ESMTP id rBD8NMAH017921; Fri, 13 Dec 2013 17:23:22 +0900 (JST) Received: (from root@localhost) by arc11.toshiba.co.jp id rBD8NM7B023637; Fri, 13 Dec 2013 17:23:22 +0900 (JST) Received: from ovp11.toshiba.co.jp [133.199.90.148] by arc11.toshiba.co.jp with ESMTP id TAA23628; Fri, 13 Dec 2013 17:23:22 +0900 Received: from mx2.toshiba.co.jp (localhost [127.0.0.1]) by ovp11.toshiba.co.jp with ESMTP id rBD8NLcT010513; Fri, 13 Dec 2013 17:23:21 +0900 (JST) Received: from BK2211.rdc.toshiba.co.jp by toshiba.co.jp id rBD8NKYD022553; Fri, 13 Dec 2013 17:23:20 +0900 (JST) Received: from island.swc.toshiba.co.jp (localhost [127.0.0.1]) by BK2211.rdc.toshiba.co.jp (8.13.8+Sun/8.13.8) with ESMTP id rBD8NK4V027297; Fri, 13 Dec 2013 17:23:20 +0900 (JST) Received: from ubuntu.swc.toshiba.co.jp (unknown [133.196.174.184]) by island.swc.toshiba.co.jp (Postfix) with ESMTP id 8B48440025; Fri, 13 Dec 2013 17:22:32 +0900 (JST) From: Daniel Sangorrin To: ltsi-dev@lists.linuxfoundation.org Date: Fri, 13 Dec 2013 17:22:09 +0900 Message-Id: <1386922983-22135-55-git-send-email-daniel.sangorrin@toshiba.co.jp> X-Mailer: git-send-email 1.8.5 In-Reply-To: <1386922983-22135-1-git-send-email-daniel.sangorrin@toshiba.co.jp> References: <1386922983-22135-1-git-send-email-daniel.sangorrin@toshiba.co.jp> X-Spam-Status: No, score=-2.3 required=5.0 tests=BAYES_00,RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Mailman-Approved-At: Sat, 14 Dec 2013 08:06:35 +0000 Cc: michal.simek@xilinx.com Subject: [LTSI-dev] [PATCH 054/108] spi/xilinx: Simplify irq allocation X-BeenThere: ltsi-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: "A list to discuss patches, development, and other things related to the LTSI project" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: ltsi-dev-bounces@lists.linuxfoundation.org Errors-To: ltsi-dev-bounces@lists.linuxfoundation.org X-Virus-Scanned: ClamAV using ClamSMTP From: Michal Simek Use devm_request_irq() for irq allocation which simplify driver code. Signed-off-by: Michal Simek Signed-off-by: Mark Brown (cherry picked from commit 7b3b7432ae7848a269671921393148ff1aae3881) Signed-off-by: Daniel Sangorrin Signed-off-by: Yoshitake Kobayashi --- drivers/spi/spi-xilinx.c | 29 ++++++++++++++++------------- 1 file changed, 16 insertions(+), 13 deletions(-) diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c index 1c33720..fea815c 100644 --- a/drivers/spi/spi-xilinx.c +++ b/drivers/spi/spi-xilinx.c @@ -359,7 +359,7 @@ static int xilinx_spi_probe(struct platform_device *pdev) struct xilinx_spi *xspi; struct xspi_platform_data *pdata; struct resource *res; - int ret, irq, num_cs = 0, bits_per_word = 8; + int ret, num_cs = 0, bits_per_word = 8; struct spi_master *master; u32 tmp; u8 i; @@ -379,10 +379,6 @@ static int xilinx_spi_probe(struct platform_device *pdev) return -EINVAL; } - irq = platform_get_irq(pdev, 0); - if (irq < 0) - return -ENXIO; - master = spi_alloc_master(&pdev->dev, sizeof(struct xilinx_spi)); if (!master) return -ENODEV; @@ -409,8 +405,6 @@ static int xilinx_spi_probe(struct platform_device *pdev) master->num_chipselect = num_cs; master->dev.of_node = pdev->dev.of_node; - xspi->irq = irq; - /* * Detect endianess on the IP via loop bit in CR. Detection * must be done before reset is sent because incorrect reset @@ -444,19 +438,25 @@ static int xilinx_spi_probe(struct platform_device *pdev) goto put_master; } - /* SPI controller initializations */ xspi_init_hw(xspi); + xspi->irq = platform_get_irq(pdev, 0); + if (xspi->irq < 0) { + ret = xspi->irq; + goto put_master; + } + /* Register for SPI Interrupt */ - ret = request_irq(xspi->irq, xilinx_spi_irq, 0, XILINX_SPI_NAME, xspi); + ret = devm_request_irq(&pdev->dev, xspi->irq, xilinx_spi_irq, 0, + dev_name(&pdev->dev), xspi); if (ret) goto put_master; ret = spi_bitbang_start(&xspi->bitbang); if (ret) { dev_err(&pdev->dev, "spi_bitbang_start FAILED\n"); - goto free_irq; + goto put_master; } dev_info(&pdev->dev, "at 0x%08llX mapped to 0x%p, irq=%d\n", @@ -470,8 +470,6 @@ static int xilinx_spi_probe(struct platform_device *pdev) platform_set_drvdata(pdev, master); return 0; -free_irq: - free_irq(xspi->irq, xspi); put_master: spi_master_put(master); @@ -482,9 +480,14 @@ static int xilinx_spi_remove(struct platform_device *pdev) { struct spi_master *master = platform_get_drvdata(pdev); struct xilinx_spi *xspi = spi_master_get_devdata(master); + void __iomem *regs_base = xspi->regs; spi_bitbang_stop(&xspi->bitbang); - free_irq(xspi->irq, xspi); + + /* Disable all the interrupts just in case */ + xspi->write_fn(0, regs_base + XIPIF_V123B_IIER_OFFSET); + /* Disable the global IPIF interrupt */ + xspi->write_fn(0, regs_base + XIPIF_V123B_DGIER_OFFSET); spi_master_put(xspi->bitbang.master);