From patchwork Thu Sep 19 21:51:02 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Russell King X-Patchwork-Id: 2926791 Return-Path: X-Original-To: patchwork-dri-devel@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 65BF8BFF05 for ; Mon, 23 Sep 2013 08:52:39 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3EA7320399 for ; Mon, 23 Sep 2013 08:52:38 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 2637A2038E for ; Mon, 23 Sep 2013 08:52:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1FE38E7142 for ; Mon, 23 Sep 2013 01:52:37 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from caramon.arm.linux.org.uk (caramon.arm.linux.org.uk [78.32.30.218]) by gabe.freedesktop.org (Postfix) with ESMTP id EAA71E5EFC for ; Fri, 20 Sep 2013 05:08:48 -0700 (PDT) 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=O9ICSulsf0CqQpTlZvAPF4qLahkWOu3DZmWhQSohScU=; b=oFp76Vu//wDQQYXmiEmUSJdsFWRwLXiu32hnhjVZ/Nj9KUi9jQc7WpNbVBZn8AvUPWEOtKzLcZeo3DG6CQKjPddEK1rB4kqvBuMeikDSwc4SxT8FBkmer5uFIMaWpv9Zaxb/EooFy1ASmv8eeIeImmRy4RNpBRlA9M5vniCHPSE=; 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 1VMnLS-0000qF-GW; Fri, 20 Sep 2013 00:09:10 +0100 Received: from rmk by rmk-PC.arm.linux.org.uk with local (Exim 4.76) (envelope-from ) id 1VMm7q-0007iO-68; Thu, 19 Sep 2013 22:51:02 +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 Subject: [PATCH 26/51] DMA-API: usb: ohci-sa1111: add a note about DMA masks Message-Id: Date: Thu, 19 Sep 2013 22:51:02 +0100 X-Mailman-Approved-At: Mon, 23 Sep 2013 01:16:56 -0700 Cc: Greg Kroah-Hartman , Alan Stern X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org Errors-To: dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org X-Spam-Status: No, score=-3.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, KHOP_BIG_TO_CC,RCVD_IN_DNSWL_MED,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 Add a comment to explain why this driver doesn't call any of the DMA API dma_set_mask() functions. Signed-off-by: Russell King --- drivers/usb/host/ohci-sa1111.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/drivers/usb/host/ohci-sa1111.c b/drivers/usb/host/ohci-sa1111.c index 17b2a7d..aa9e127 100644 --- a/drivers/usb/host/ohci-sa1111.c +++ b/drivers/usb/host/ohci-sa1111.c @@ -185,6 +185,12 @@ static int ohci_hcd_sa1111_probe(struct sa1111_dev *dev) if (usb_disabled()) return -ENODEV; + /* + * We don't call dma_set_mask_and_coherent() here because the + * DMA mask has already been appropraitely setup by the core + * SA-1111 bus code (which includes bug workarounds.) + */ + hcd = usb_create_hcd(&ohci_sa1111_hc_driver, &dev->dev, "sa1111"); if (!hcd) return -ENOMEM;