From patchwork Wed Sep 10 11:17:28 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Will Deacon X-Patchwork-Id: 37199 Return-Path: X-Original-To: linaro@patches.linaro.org Delivered-To: linaro@patches.linaro.org Received: from mail-ig0-f199.google.com (mail-ig0-f199.google.com [209.85.213.199]) by ip-10-151-82-157.ec2.internal (Postfix) with ESMTPS id C5D1B20491 for ; Wed, 10 Sep 2014 11:18:26 +0000 (UTC) Received: by mail-ig0-f199.google.com with SMTP id l13sf7127281iga.2 for ; Wed, 10 Sep 2014 04:18:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:delivered-to:date:from:to:cc:subject:message-id :references:mime-version:in-reply-to:user-agent:sender:precedence :list-id:x-original-sender:x-original-authentication-results :mailing-list:list-post:list-help:list-archive:list-unsubscribe :content-type:content-disposition; bh=7f1duWJTBNWH+72pbACVS3Emzy+E+fQ4IIlBwNjpqAU=; b=TV9mtAaD+TAMm5TATfH8SrANmEUDCG1NnLEgmCKtL+uB0GMer5QXVugRN8+qAgiDKv tQ4Ymjy+/gX0pEdfu15NzyWRiM3Pdc2YlToiLU1h6VQoBBPdD76xwJq2QrSYTkEur0dn Aq5HsbRK9n5u5t8L6SrFLYsblCl+FANHJFAmANvL7XanfikjNjR0DgbcK/utsQlWrT/y MUrW7CfNkzDiz36UpSjPD/oiGqvoRKqNI8hwZlZG97MsPsb14W4HGhnTbmdxnueOcVsG ebncgicXb4JerkbT0ekW2sqdW7EtlwMruDOOtj7gzW4qmVxcu9RlEoBWxQlz7w5yuaRW xOAQ== X-Gm-Message-State: ALoCoQlutzXTIOmKZusglDHr/u1IC8no/cZYfnTzlCwBt+wLujID26xCdaFpacpdPxXdp+ZiXCrZ X-Received: by 10.50.80.111 with SMTP id q15mr20480085igx.0.1410347906358; Wed, 10 Sep 2014 04:18:26 -0700 (PDT) X-BeenThere: patchwork-forward@linaro.org Received: by 10.140.19.203 with SMTP id 69ls2536974qgh.27.gmail; Wed, 10 Sep 2014 04:18:26 -0700 (PDT) X-Received: by 10.52.121.74 with SMTP id li10mr29708391vdb.19.1410347906258; Wed, 10 Sep 2014 04:18:26 -0700 (PDT) Received: from mail-vc0-f177.google.com (mail-vc0-f177.google.com [209.85.220.177]) by mx.google.com with ESMTPS id xe15si6765877vdc.85.2014.09.10.04.18.26 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 10 Sep 2014 04:18:26 -0700 (PDT) Received-SPF: pass (google.com: domain of patch+caf_=patchwork-forward=linaro.org@linaro.org designates 209.85.220.177 as permitted sender) client-ip=209.85.220.177; Received: by mail-vc0-f177.google.com with SMTP id la4so1822479vcb.8 for ; Wed, 10 Sep 2014 04:18:26 -0700 (PDT) X-Received: by 10.52.106.168 with SMTP id gv8mr4176vdb.80.1410347906072; Wed, 10 Sep 2014 04:18:26 -0700 (PDT) X-Forwarded-To: patchwork-forward@linaro.org X-Forwarded-For: patch@linaro.org patchwork-forward@linaro.org Delivered-To: patch@linaro.org Received: by 10.221.45.67 with SMTP id uj3csp421264vcb; Wed, 10 Sep 2014 04:18:25 -0700 (PDT) X-Received: by 10.68.192.35 with SMTP id hd3mr3252540pbc.144.1410347905001; Wed, 10 Sep 2014 04:18:25 -0700 (PDT) Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id nw12si27491694pdb.41.2014.09.10.04.18.24 for ; Wed, 10 Sep 2014 04:18:24 -0700 (PDT) Received-SPF: none (google.com: linux-samsung-soc-owner@vger.kernel.org does not designate permitted sender hosts) client-ip=209.132.180.67; Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751587AbaIJLSX (ORCPT + 5 others); Wed, 10 Sep 2014 07:18:23 -0400 Received: from cam-admin0.cambridge.arm.com ([217.140.96.50]:62442 "EHLO cam-admin0.cambridge.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751338AbaIJLSX (ORCPT ); Wed, 10 Sep 2014 07:18:23 -0400 Received: from arm.com (edgewater-inn.cambridge.arm.com [10.1.203.204]) by cam-admin0.cambridge.arm.com (8.12.6/8.12.6) with ESMTP id s8ABHSwo003679; Wed, 10 Sep 2014 12:17:28 +0100 (BST) Date: Wed, 10 Sep 2014 12:17:28 +0100 From: Will Deacon To: Javier Martinez Canillas Cc: Grant Likely , Mark Brown , Tomasz Figa , "kgene.kim@samsung.com" , Doug Anderson , "linux-samsung-soc@vger.kernel.org" , "olof@lixom.net" , "linux-arm-kernel@lists.infradead.org" , "rahul.sharma@samsung.com" , Stephen Warren Subject: Re: Unable to boot mainline on snow chromebook since 3.15 Message-ID: <20140910111728.GG28488@arm.com> References: <20140905122232.GP13515@arm.com> <540C202E.2060009@collabora.co.uk> <540C7F5B.6070307@gmail.com> <540C83DE.10505@collabora.co.uk> <540C8577.2070907@gmail.com> <20140908112112.GK26030@arm.com> <20140908134937.GK4015@sirena.org.uk> <540DB7B4.4060300@collabora.co.uk> MIME-Version: 1.0 In-Reply-To: <540DB7B4.4060300@collabora.co.uk> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: list List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org X-Removed-Original-Auth: Dkim didn't pass. X-Original-Sender: will.deacon@arm.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of patch+caf_=patchwork-forward=linaro.org@linaro.org designates 209.85.220.177 as permitted sender) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org X-Google-Group-Id: 836684582541 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , Content-Disposition: inline On Mon, Sep 08, 2014 at 03:05:40PM +0100, Javier Martinez Canillas wrote: > Hello Will, Hi Javier, > Since many folks don't agree that hacking different subsystems is the way > forward I'll hold the patches and don't post them. The sunxi thread [0] > already shows how different people have strong opposite positions on the > correct approach to handle this. > > For now you can just disable the tps65090 PMIC support by not enabling the > CONFIG_REGULATOR_TPS65090 kconfig symbol on your kernel config. That will give > you exactly the same behavior that before tps65090 support was added to the > Snow DT on commit b16be76 ("ARM: dts: add tps65090 power regulator for > exynos5250-snow") which AFAIU was good enough for your workflow. Disabling the regulator support gives me my framebuffer back, thanks. I then get stuck mounting my root filesystem over sd card because it's reported as read-only. The following hack solved the issue, but I'm not exactly sure where this regression has come from (whether this is a board quirk or pinctrl is really misconfigured). Will --->8 --- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts index f2b8c41..932d82e 100644 --- a/arch/arm/boot/dts/exynos5250-snow.dts +++ b/arch/arm/boot/dts/exynos5250-snow.dts @@ -231,6 +231,7 @@ }; mmc@12220000 { + disable-wp; status = "okay"; };