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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,UNPARSEABLE_RELAY autolearn=ham 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 D1954C43387 for ; Fri, 11 Jan 2019 01:31:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A59B620879 for ; Fri, 11 Jan 2019 01:31:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729399AbfAKBbu (ORCPT ); Thu, 10 Jan 2019 20:31:50 -0500 Received: from mailgw01.mediatek.com ([210.61.82.183]:52283 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726369AbfAKBbu (ORCPT ); Thu, 10 Jan 2019 20:31:50 -0500 X-UUID: b2a527fe380b4a38854dbd2a139b7a58-20190111 X-UUID: b2a527fe380b4a38854dbd2a139b7a58-20190111 Received: from mtkexhb02.mediatek.inc [(172.21.101.103)] by mailgw01.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1819157637; Fri, 11 Jan 2019 09:31:30 +0800 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs02n2.mediatek.inc (172.21.101.101) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Fri, 11 Jan 2019 09:31:28 +0800 Received: from [172.21.77.4] (172.21.77.4) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Fri, 11 Jan 2019 09:31:28 +0800 Message-ID: <1547170288.29836.2.camel@mtksdaap41> Subject: Re: Aw: Re: [PATCH] drm/mediatek: Add MTK Framebuffer-Device (mt7623) From: CK Hu To: Frank Wunderlich CC: Daniel Vetter , David Airlie , Alexander Ryabchenko , Linux Kernel Mailing List , dri-devel , Matthias Brugger , "moderated list:ARM/Mediatek SoC support" , Philipp Zabel , Linux ARM Date: Fri, 11 Jan 2019 09:31:28 +0800 In-Reply-To: References: <20190102084917.4049-1-frank-w@public-files.de> <20190107103640.GH21184@phenom.ffwll.local> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-TM-SNTS-SMTP: 0A9927583E6C4C5F7B56FD85D3FBAA413171D2A9E01E6C960CD787995FFDBB712000:8 X-MTK: N Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Frank: On Thu, 2019-01-10 at 20:01 +0100, Frank Wunderlich wrote: > Hi Daniel, > > > > Would be good to use the new generic fbdev emulation code here, for even > > > less code. Or at least know why this isn't possible to use for mtk (and > > > maybe address that in the core code). Hand-rolling fbdev code shouldn't be > > > needed anymore. > > > > Back on the mailing list, no private replies please: > > i don't wanted to spam all people with dumb questions ;) > > > For examples please grep for drm_fbdev_generic_setup(). There's also a > > still in-flight series from Gerd Hoffmann to convert over bochs. That, > > plus all the kerneldoc linked from there should get you started. > > -Daniel > > this is one of google best founds if i search for drm_fbdev_generic_setup: > > https://lkml.org/lkml/2018/12/19/305 > > not very helpful... > > so i tried kernel-doc > > https://www.kernel.org/doc/html/latest/gpu/drm-kms-helpers.html?highlight=drm_fbdev_generic_setup#c.drm_fbdev_generic_setup > > which is nice function-reference but i've found no generic workflow > > as the posted driver is "only" a driver ported from kernel 4.4 by Alexander, i don't know if this new framework can be used and which parts need to be changed. I only try to bring his code Mainline.... > Maybe CK Hu can help here because driver is originally from him and he knows internals. Or maybe you can help here? I could help on this but I'm a little busy now, so I'm not sure how long this process takes. Regards, CK > > i personally make my first steps as spare-time kernel-developer :) > > regards Frank > > _______________________________________________ > Linux-mediatek mailing list > Linux-mediatek@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-mediatek