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=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 8C277C433E0 for ; Tue, 7 Jul 2020 19:04:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C1706206CD for ; Tue, 7 Jul 2020 19:04:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=goldelico.com header.i=@goldelico.com header.b="C4Pu8Nq2" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728305AbgGGTEZ (ORCPT ); Tue, 7 Jul 2020 15:04:25 -0400 Received: from mo4-p00-ob.smtp.rzone.de ([85.215.255.25]:22399 "EHLO mo4-p00-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728272AbgGGTEZ (ORCPT ); Tue, 7 Jul 2020 15:04:25 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1594148659; s=strato-dkim-0002; d=goldelico.com; h=To:References:Message-Id:Cc:Date:In-Reply-To:From:Subject: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=Gbz7SP3eJ7xcCT8MwiYv8FfyWlDQZHKQNKnj48shZ0E=; b=C4Pu8Nq21MjkRLqq2utktgfhV9oqpt6MjudL9JW70zWQEhJwwPlr0PHeBiuoGSC98M x9ZM1dZ1P0KYgP6jN2ztorzMVXjg3cxMjcBgMH6I0iMb5Kw8IpXx1tO7299FlQgMzrkW a/TnS0K1R0AKOYRXLtNrr6WBr+hyoLWTdm1CQivBxE2I0wmP09JpR4qUo2FlSXRIyi+1 6uuOqxWF8nL2VzFmv/fBgy3B47pchxEme3CmXHFK/0i58r1gZW3mPOPN4Gg0N+cF7V21 SIbh1sCl3MgUNmSMX8PYkHlqZZ6ZcUoFYXfZDRjsiJ8z2ZvJvA92IU8YEVfBnNUGlx9I 2sNQ== X-RZG-AUTH: ":JGIXVUS7cutRB/49FwqZ7WcJeFKiMgPgp8VKxflSZ1P34KBj7wpz8NMGH/PrwDOjV78=" X-RZG-CLASS-ID: mo00 Received: from mbp-13-nikolaus.fritz.box by smtp.strato.de (RZmta 46.10.5 DYNA|AUTH) with ESMTPSA id V07054w67J4Bw7a (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (curve X9_62_prime256v1 with 256 ECDH bits, eq. 3072 bits RSA)) (Client did not present a certificate); Tue, 7 Jul 2020 21:04:11 +0200 (CEST) Subject: Re: OMAP5: inconsistency between target-module and dsi_of_data_omap5 Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) Content-Type: text/plain; charset=us-ascii From: "H. Nikolaus Schaller" In-Reply-To: <20200707180115.GB5849@atomide.com> Date: Tue, 7 Jul 2020 21:04:09 +0200 Cc: Discussions about the Letux Kernel , kernel@pyra-handheld.com, Linux-OMAP , Laurent Pinchart , Jyri Sarha Content-Transfer-Encoding: 7bit Message-Id: References: <49725F81-E615-4101-81B3-0850F201D9E8@goldelico.com> <5F4C23B0-A82B-4F94-BD74-D04F6D798FC0@goldelico.com> <20200705142653.GQ37466@atomide.com> <20200705143614.GR37466@atomide.com> <20200706143613.GS37466@atomide.com> <20200707180115.GB5849@atomide.com> To: Tony Lindgren , Tomi Valkeinen X-Mailer: Apple Mail (2.3124) Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org Hi Tony and Tomi, > Am 07.07.2020 um 20:01 schrieb Tony Lindgren : > > * H. Nikolaus Schaller [200706 16:11]: >>> Am 06.07.2020 um 16:36 schrieb Tony Lindgren : >>> I think you should now be using just the generic panel with >>> drivers/gpu/drm/panel/panel-simple or some panel specific >>> driver for dsi. >> >> None of them supports the vendor specific MIPI commands of >> this panel. >> >> Therefore we have our own panel driver for years and try to >> keep pace with upstream changes. > > OK yeah would be good to have it upstream. It might see use > on some other platforms while waiting for the pyra dts files. So if you think we can get the panel driver upstream without the pyra dts files I am happy to submit something for review. But I have to fix it first. Maybe Tomi can comment about ideas what structural changes have been done so that it got broken since v5.7-rc1. Then it becomes easier to fix for me. Maybe there was some rework in omapdrm/dss which needs some change in the driver. And what I would need to know before I start to write new code is if is possible to operate a video mipi dsi panel with driver from gpu/drm/panel together with omapdrm (v5.7 and later). If this is possible it should be quite easy to mix the old omapdrm/display driver code with e.g.: drivers/gpu/drm/panel/panel-orisetech-otm8009a.c BR and thanks, Nikolaus