From patchwork Thu Sep 19 23:17:39 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Russell King X-Patchwork-Id: 2916321 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 11A499F1E2 for ; Fri, 20 Sep 2013 11:06:37 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 01413201FA for ; Fri, 20 Sep 2013 11:06:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E08C4201EC for ; Fri, 20 Sep 2013 11:06:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754569Ab3ITLGe (ORCPT ); Fri, 20 Sep 2013 07:06:34 -0400 Received: from caramon.arm.linux.org.uk ([78.32.30.218]:39215 "EHLO caramon.arm.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754503Ab3ITLGe (ORCPT ); Fri, 20 Sep 2013 07:06:34 -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:To:From:References:In-Reply-To; bh=M89VoGymp9JVIohKTkSy4yi4UOTmGYj6AfIuJHJeq1M=; b=ao6UTq5Iu4s9xCnEyxg2qi/R0wOuMZU6vTuuPhEiW5AfBdsGwxFCXQDGtY4Dfh7IDqqnUrdIAitExWwac6kGf1EW8hYg8S67o6BmTg/slpTsorj3hRcI5gEnfODSDVDrtLNuohfnRXgelbeBOgOwmiTwO75Ubi+v8hgR8enxAi4=; Received: from e0022681537dd.dyn.arm.linux.org.uk ([2002:4e20:1eda:1:222:68ff:fe15:37dd]:59277 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 1VMnog-0001IR-Cm; Fri, 20 Sep 2013 00:39:22 +0100 Received: from rmk by rmk-PC.arm.linux.org.uk with local (Exim 4.76) (envelope-from ) id 1VMnTf-0007ss-9q; Fri, 20 Sep 2013 00:17:39 +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 45/51] DMA-API: firmware/google/gsmi.c: avoid direct access to DMA masks Message-Id: Date: Fri, 20 Sep 2013 00:17:39 +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 This driver doesn't need to directly access DMA masks if it uses the platform_device_register_full() API rather than platform_device_register_simple() - the former function can initialize the DMA mask appropriately. Signed-off-by: Russell King --- drivers/firmware/google/gsmi.c | 13 ++++++++----- 1 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/firmware/google/gsmi.c b/drivers/firmware/google/gsmi.c index 6eb535f..e5a67b2 100644 --- a/drivers/firmware/google/gsmi.c +++ b/drivers/firmware/google/gsmi.c @@ -764,6 +764,13 @@ static __init int gsmi_system_valid(void) static struct kobject *gsmi_kobj; static struct efivars efivars; +static const struct platform_device_info gsmi_dev_info = { + .name = "gsmi", + .id = -1, + /* SMI callbacks require 32bit addresses */ + .dma_mask = DMA_BIT_MASK(32), +}; + static __init int gsmi_init(void) { unsigned long flags; @@ -776,7 +783,7 @@ static __init int gsmi_init(void) gsmi_dev.smi_cmd = acpi_gbl_FADT.smi_command; /* register device */ - gsmi_dev.pdev = platform_device_register_simple("gsmi", -1, NULL, 0); + gsmi_dev.pdev = platform_device_register_full(&gsmi_dev_info); if (IS_ERR(gsmi_dev.pdev)) { printk(KERN_ERR "gsmi: unable to register platform device\n"); return PTR_ERR(gsmi_dev.pdev); @@ -785,10 +792,6 @@ static __init int gsmi_init(void) /* SMI access needs to be serialized */ spin_lock_init(&gsmi_dev.lock); - /* SMI callbacks require 32bit addresses */ - gsmi_dev.pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); - gsmi_dev.pdev->dev.dma_mask = - &gsmi_dev.pdev->dev.coherent_dma_mask; ret = -ENOMEM; gsmi_dev.dma_pool = dma_pool_create("gsmi", &gsmi_dev.pdev->dev, GSMI_BUF_SIZE, GSMI_BUF_ALIGN, 0);