From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E453EC3A5A8 for ; Tue, 3 Sep 2019 06:20:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BA780215EA for ; Tue, 3 Sep 2019 06:20:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="oSJnFgvp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727173AbfICGUp (ORCPT ); Tue, 3 Sep 2019 02:20:45 -0400 Received: from mail-wr1-f68.google.com ([209.85.221.68]:36433 "EHLO mail-wr1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726016AbfICGUo (ORCPT ); Tue, 3 Sep 2019 02:20:44 -0400 Received: by mail-wr1-f68.google.com with SMTP id y19so16051832wrd.3 for ; Mon, 02 Sep 2019 23:20:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to :user-agent; bh=YKY88mE2T1JIVhonH4BKsN4In+EOCkLewu/cYwg0NFI=; b=oSJnFgvpy0N/Nmx5iIH3UkDpNMrRdPCgW0b4jddqpLvi4/d1Rkz0iH9x6JROMRweXs XdX7jguoInFB7gtTaGYBrXzI6qz0J0da8yO+VYo7yCy4565Z/40NDO3pHW7vWgx5Vf0o Vxlbis9eTsOPTASQ0Oky9OzE/ET2cNCAJ4t62ZXj4YjOhG+UraKA6e0MvanYzVQ8NR1K o9Y685UaF4FtTl+zcgsEUNhEVPOcbPUi24DqfjU46CfvhOizKa8OuRggtVCAjBunUn/s klakPSif8jugFhmBXjktCEhCN3hZu5YWuyvSxMGJof5mdhJTcriZLh8wDRDbg/PKbQNP jIYA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to:user-agent; bh=YKY88mE2T1JIVhonH4BKsN4In+EOCkLewu/cYwg0NFI=; b=DtTXqBzZqCCeQuPuOh9RzAABzc/sLns5eX7q0STfGJjkEJ3dE0xYXLDfCmHqyj2ecY iKUNoISMhn4idF+P0MH4PCRX2wO4ONxg8YPx4bj/Tv1+eWocfTvTP3mbCbug14hHBPWD 711UehN5FsdN1Wg3+c2QT2CER1HkA2ZCpJxweVdJ5P/XdWr5eExXo2/yPUdsDjkHFOYx AMwfJxh2aVplNVUt4VXq5C6sGuAfIXQeyw9MHjHl+YQGD1g+K8WXnHdRLwYIAyUMZ8xE K2bcb1/38j41ULMBwW7WhsiazL12JEGn/dG3chrQlriJj53/GBO7DRxBzL3cDcTjQMVD 0a3w== X-Gm-Message-State: APjAAAWYuKvtCiDGwEoB+MuY7r+sJARuTO+98+PLNo7NdIjzZMy/fvAf 8vxl+JXLYlmcl+tZDefxNZ44kw== X-Google-Smtp-Source: APXvYqzxTP9Izgjyqm7VZnX7b5HaQgM+sZAiS2X6RszH2QLjrimvK7wmFA+TGBzFrnlM0Gq6VvNosA== X-Received: by 2002:adf:e912:: with SMTP id f18mr38483436wrm.46.1567491642530; Mon, 02 Sep 2019 23:20:42 -0700 (PDT) Received: from dell ([95.147.198.93]) by smtp.gmail.com with ESMTPSA id o193sm19866846wme.39.2019.09.02.23.20.41 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 02 Sep 2019 23:20:41 -0700 (PDT) Date: Tue, 3 Sep 2019 07:20:40 +0100 From: Lee Jones To: Bjorn Andersson Cc: agross@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/1] arm64: dts: qcom: Add Lenovo Yoga C630 Message-ID: <20190903062040.GC26880@dell> References: <20190902132400.14084-1-lee.jones@linaro.org> <20190903054451.GV6167@minitux> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20190903054451.GV6167@minitux> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 02 Sep 2019, Bjorn Andersson wrote: > On Mon 02 Sep 06:24 PDT 2019, Lee Jones wrote: > > > From: Bjorn Andersson > > > > The Lenovo Yoga C630 is built on the SDM850 from Qualcomm, but this seem > > to be similar enough to the SDM845 that we can reuse the sdm845.dtsi. > > > > Supported by this patch is: keyboard, battery monitoring, UFS storage, > > USB host and Bluetooth. > > Applied this to next-20190829 and booted it, got a little bit of EFI FB, > then the screen goes blank and after a while I'm back in GRUB. > > I've not been able to figure out what's causing this though. Probably DMA. There is still an issue in the COM GENI Serial Engine Driver which reboots the system when a DMA transaction is initiated. However, with a workaround patch applied to the Serial Engine driver (drivers/soc/qcom/qcom-geni-se.c) this DTS has no issue booting the system. We have ~12 weeks to either fix or elegantly work around the Serial Engine issue. IMHO is makes no sense to hold back this enablement patch (which cannot go in via the -rcs) for something which is likely to be fixed and applied during v3.4-rcX. -- Lee Jones [李琼斯] Linaro Services Technical Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog