From patchwork Tue Dec 12 21:31:10 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shuah Khan X-Patchwork-Id: 10108279 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id DBFDF6032B for ; Tue, 12 Dec 2017 21:31:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CE100284AA for ; Tue, 12 Dec 2017 21:31:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C262229437; Tue, 12 Dec 2017 21:31:37 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CA32C284AA for ; Tue, 12 Dec 2017 21:31:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752570AbdLLVbg (ORCPT ); Tue, 12 Dec 2017 16:31:36 -0500 Received: from osg.samsung.com ([64.30.133.232]:53060 "EHLO osg.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752415AbdLLVbf (ORCPT ); Tue, 12 Dec 2017 16:31:35 -0500 Received: from localhost (localhost [127.0.0.1]) by osg.samsung.com (Postfix) with ESMTP id BDF4520668; Tue, 12 Dec 2017 13:31:34 -0800 (PST) X-Virus-Scanned: Debian amavisd-new at dev.s-opensource.com Received: from osg.samsung.com ([127.0.0.1]) by localhost (localhost [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id quWWb_XB4BHz; Tue, 12 Dec 2017 13:31:33 -0800 (PST) Received: from localhost.localdomain (c-24-9-64-241.hsd1.co.comcast.net [24.9.64.241]) by osg.samsung.com (Postfix) with ESMTPSA id A487020660; Tue, 12 Dec 2017 13:31:32 -0800 (PST) From: Shuah Khan To: linux@armlinux.org.uk, kgene@kernel.org, krzk@kernel.org, linux.amoon@gmail.com, arnd@arndb.de, javier@dowhile0.org, robie@justgohome.co.uk, shuah@kernel.org, viresh.kumar@linaro.org, m.szyprowski@samsung.com Cc: Shuah Khan , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] ARM: exynos_defconfig - enable CONFIG_EXYNOS_IOMMU Date: Tue, 12 Dec 2017 14:31:10 -0700 Message-Id: <20171212213110.20893-1-shuahkh@osg.samsung.com> X-Mailer: git-send-email 2.14.1 Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP EXYNOS_IOMMU is disabled in exynos_defconfig since it is known to cause boot failures on Exynos Chrome-books. The recommendation is for IOMMU to be enabled manually on systems as needed. A recent exynos_drm change added a warning message when EXYNOS_IOMMU is disabled. It is necessary to enable it to avoid the warning messages. A few initial tests have shown that enabling EXYNOS_IOMMU might be safe on Exynos Chrome-books. Enable CONFIG_EXYNOS_IOMMU in exynos_defconfig. Signed-off-by: Shuah Khan Acked-by: Marek Szyprowski Tested-by: Marek Szyprowski --- arch/arm/configs/exynos_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig index f1d7834..0ccd5eb 100644 --- a/arch/arm/configs/exynos_defconfig +++ b/arch/arm/configs/exynos_defconfig @@ -281,6 +281,7 @@ CONFIG_DEVFREQ_GOV_POWERSAVE=y CONFIG_DEVFREQ_GOV_USERSPACE=y CONFIG_ARM_EXYNOS_BUS_DEVFREQ=y CONFIG_DEVFREQ_EVENT_EXYNOS_NOCP=y +CONFIG_EXYNOS_IOMMU=y CONFIG_EXTCON=y CONFIG_EXTCON_MAX14577=y CONFIG_EXTCON_MAX77693=y