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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 97010C0650F for ; Mon, 5 Aug 2019 09:56:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6A165217D9 for ; Mon, 5 Aug 2019 09:56:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728142AbfHEJ4P (ORCPT ); Mon, 5 Aug 2019 05:56:15 -0400 Received: from shell.v3.sk ([90.176.6.54]:60334 "EHLO shell.v3.sk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727225AbfHEJ4P (ORCPT ); Mon, 5 Aug 2019 05:56:15 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 0AEE0D5DDB; Mon, 5 Aug 2019 11:56:10 +0200 (CEST) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id Q-7FVgH1G8-P; Mon, 5 Aug 2019 11:56:03 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id E7E5CD5DD8; Mon, 5 Aug 2019 11:56:02 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id lqHkZW8HlhTz; Mon, 5 Aug 2019 11:56:01 +0200 (CEST) Received: from zimbra.v3.sk (zimbra.v3.sk [10.13.37.31]) by zimbra.v3.sk (Postfix) with ESMTP id 346F0D5DDB; Mon, 5 Aug 2019 11:56:01 +0200 (CEST) Date: Mon, 5 Aug 2019 11:56:00 +0200 (CEST) From: Lubomir Rintel To: Pavel Machek Cc: Olof Johansson , Rob Herring , Mark Rutland , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Message-ID: <1387772868.4330.1564998960018.JavaMail.zimbra@v3.sk> In-Reply-To: <20190803085824.GB8224@amd> References: <20190802103326.531250-1-lkundrak@v3.sk> <20190802103326.531250-7-lkundrak@v3.sk> <20190803085824.GB8224@amd> Subject: Re: [PATCH v2 6/6] ARM: dts: mmp2: add OLPC XO 1.75 machine MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Originating-IP: [10.13.37.1] X-Mailer: Zimbra 8.6.0_GA_1153 (ZimbraWebClient - FF68 (Linux)/8.6.0_GA_1153) Thread-Topic: mmp2: add OLPC XO 1.75 machine Thread-Index: tSI++o0iWICeZ1TARJ86vAWcjaSjHw== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ----- On Aug 3, 2019, at 10:58 AM, Pavel Machek pavel@ucw.cz wrote: > On Fri 2019-08-02 12:33:26, Lubomir Rintel wrote: >> This is a fairly complete description of an OLPC XO 1.75 laptop. >> What's missing for now is the GPU, LCD controller, DCON, the panel and >> audio. > > Ok, but I need GPU/LCD/panel... that's my only output. Is video > expected to work in 5.2? Does the firmware pass right device tree, > including the GPU/LCD/DCON? The firmware (and the dts) uses a simple-framebuffer. You won't get any nifty features, but you'll get a framebuffer. Hopefully we'll get a proper DRM video soon. The status is roughly as follows: LCDC: potentially supported by the Armada DRM driver. Patches sent to Russell King some months ago, not there yet. I'd prefer not to nag him. DCON: Russell dislikes the idea of a DRM bridge, DRM maintainers prefer if the driver was not a DRM encoder driver. This seems to require quite some work to fix [1]. [1] https://www.spinics.net/lists/dri-devel/msg201927.html GPU: supported by the etnaviv driver, good enough for 2D acceleration to work with xorg-x11-video-armada driver. 3D (weston and mutter alike) is broken. To add this to the device tree, the clock and power needs to be figured out. > Is there config somewhere I could use? > > Thanks a lot, > Pavel > -- > (english) http://www.livejournal.com/~pavelmachek > (cesky, pictures) > http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html