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: 10108283 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 DAA126032B for ; Tue, 12 Dec 2017 21:32:05 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CB9B0284AA for ; Tue, 12 Dec 2017 21:32:05 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BEEDD29487; Tue, 12 Dec 2017 21:32:05 +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=-4.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 64716284AA for ; Tue, 12 Dec 2017 21:32:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=ejvZnSROZDTAJ9VL7iA++FLpVQOOu6Lb9wHT7lXpaWA=; b=t+S XtF4gB5UzuhixcicZ8ybXWFeTVVXXPUEhQKF64fmgTVd0sSqYbWBjJFdC++NbH223XawgHv6jrbO+ 7rD5h27UF41340Q1OSE4FrtJ5VP78rvVuQpw4J7Kj6rZhqbiGBVQcg1iklIe+As8pGiFd9SdEbhO3 ZB2OdJo7b61gSWtj5ovdSQrgY4qdfwup5/BiHmhRz2/cKV/Sb96NGZ1nWYauQoIohryanp/JfuMLe prX2454Wpg9RcngYWNclLrMnLChslMwTZn6P0z8xzBo2+ZYEoX7KMzH/lrqEaebycrtoC2E6EjB7G wSBbhQznbydsLmn9serWQN7oUVn1K/w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1eOs9g-00075N-9Q; Tue, 12 Dec 2017 21:32:00 +0000 Received: from osg.samsung.com ([64.30.133.232]) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1eOs9c-00072s-QF for linux-arm-kernel@lists.infradead.org; Tue, 12 Dec 2017 21:31:58 +0000 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 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20171212_133156_913503_0F30060A X-CRM114-Status: UNSURE ( 7.79 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-samsung-soc@vger.kernel.org, Shuah Khan , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.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