From patchwork Thu Sep 19 21:56:02 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Russell King X-Patchwork-Id: 2918001 Return-Path: X-Original-To: patchwork-linux-fbdev@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 A21B5BFF05 for ; Fri, 20 Sep 2013 12:16:10 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 76DE0201EC for ; Fri, 20 Sep 2013 12:16:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4AFDC200E9 for ; Fri, 20 Sep 2013 12:16:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754561Ab3ITMQF (ORCPT ); Fri, 20 Sep 2013 08:16:05 -0400 Received: from caramon.arm.linux.org.uk ([78.32.30.218]:39477 "EHLO caramon.arm.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754444Ab3ITMQC (ORCPT ); Fri, 20 Sep 2013 08:16:02 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=arm.linux.org.uk; s=caramon; h=Date:Sender:Message-Id:Subject:Cc:To:From:References:In-Reply-To; bh=S2CBE6G6V2Qy4nYjoovH8cLNV6ayoFuzc+jBErTHR/4=; b=ElAfea0DLUBxzlksjPnsWcWc7oBL6KoI2DbbvGsvPsOwXmq4SpK21YwsSJsRy0GxApto1c/GNxxYxFX5yedG4z7HCzAV4Lq7lt3GZvyWubzOJDjcoWauvTd+1fRxPbPuCC60TpvHh1tEzOrtOGHZ6Pbnhu14m8D6b5uvtRFyulY=; Received: from e0022681537dd.dyn.arm.linux.org.uk ([2002:4e20:1eda:1:222:68ff:fe15:37dd]:59166 helo=rmk-PC.arm.linux.org.uk) by caramon.arm.linux.org.uk with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.76) (envelope-from ) id 1VMnLN-0000qF-Tk; Fri, 20 Sep 2013 00:09:05 +0100 Received: from rmk by rmk-PC.arm.linux.org.uk with local (Exim 4.76) (envelope-from ) id 1VMmCg-0007j1-Pi; Thu, 19 Sep 2013 22:56:02 +0100 In-Reply-To: <20130919212235.GD12758@n2100.arm.linux.org.uk> References: <20130919212235.GD12758@n2100.arm.linux.org.uk> From: Russell King To: alsa-devel@alsa-project.org, b43-dev@lists.infradead.org, devel@driverdev.osuosl.org, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, e1000-devel@lists.sourceforge.net, linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-fbdev@vger.kernel.org, linux-ide@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-nvme@lists.infradead.org, linux-omap@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-samsung-soc@vger.kernel.org, linux-scsi@vger.kernel.org, linux-tegra@vger.kernel.org, linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, Solarflare linux maintainers , uclinux-dist-devel@blackfin.uclinux.org Cc: Laurent Pinchart , Mauro Carvalho Chehab Subject: [PATCH 31/51] DMA-API: media: omap3isp: use dma_coerce_mask_and_coherent() Message-Id: Date: Thu, 19 Sep 2013 22:56:02 +0100 Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org X-Spam-Status: No, score=-3.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, KHOP_BIG_TO_CC,RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD,T_DKIM_INVALID, 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 The code sequence: isp->raw_dmamask = DMA_BIT_MASK(32); isp->dev->dma_mask = &isp->raw_dmamask; isp->dev->coherent_dma_mask = DMA_BIT_MASK(32); bypasses the architectures check on the DMA mask. It can be replaced with dma_coerce_mask_and_coherent(), avoiding the direct initialization of this mask. Signed-off-by: Russell King Acked-by: Laurent Pinchart --- drivers/media/platform/omap3isp/isp.c | 6 +++--- drivers/media/platform/omap3isp/isp.h | 3 --- 2 files changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c index df3a0ec..1c36080 100644 --- a/drivers/media/platform/omap3isp/isp.c +++ b/drivers/media/platform/omap3isp/isp.c @@ -2182,9 +2182,9 @@ static int isp_probe(struct platform_device *pdev) isp->pdata = pdata; isp->ref_count = 0; - isp->raw_dmamask = DMA_BIT_MASK(32); - isp->dev->dma_mask = &isp->raw_dmamask; - isp->dev->coherent_dma_mask = DMA_BIT_MASK(32); + ret = dma_coerce_mask_and_coherent(isp->dev, DMA_BIT_MASK(32)); + if (ret) + return ret; platform_set_drvdata(pdev, isp); diff --git a/drivers/media/platform/omap3isp/isp.h b/drivers/media/platform/omap3isp/isp.h index cd3eff4..ce65d3a 100644 --- a/drivers/media/platform/omap3isp/isp.h +++ b/drivers/media/platform/omap3isp/isp.h @@ -152,7 +152,6 @@ struct isp_xclk { * @mmio_base_phys: Array with physical L4 bus addresses for ISP register * regions. * @mmio_size: Array with ISP register regions size in bytes. - * @raw_dmamask: Raw DMA mask * @stat_lock: Spinlock for handling statistics * @isp_mutex: Mutex for serializing requests to ISP. * @crashed: Bitmask of crashed entities (indexed by entity ID) @@ -190,8 +189,6 @@ struct isp_device { unsigned long mmio_base_phys[OMAP3_ISP_IOMEM_LAST]; resource_size_t mmio_size[OMAP3_ISP_IOMEM_LAST]; - u64 raw_dmamask; - /* ISP Obj */ spinlock_t stat_lock; /* common lock for statistic drivers */ struct mutex isp_mutex; /* For handling ref_count field */