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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B0ECBC25B0E for ; Mon, 15 Aug 2022 05:23:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240557AbiHOFXF (ORCPT ); Mon, 15 Aug 2022 01:23:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33538 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229915AbiHOFXD (ORCPT ); Mon, 15 Aug 2022 01:23:03 -0400 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3A77F13E37; Sun, 14 Aug 2022 22:23:02 -0700 (PDT) Received: from pendragon.ideasonboard.com (62-78-145-57.bb.dnainternet.fi [62.78.145.57]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 0467248F; Mon, 15 Aug 2022 07:22:58 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1660540979; bh=FQbxZOfl5hG5q0hY8c6DYp8v+713cbsSwjVadQpIYBk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Nhc9UPm1vLzGKDSb4wrwLc/5kbB7TOOqZzICzwhpR6qSkYYTyxWAwrlIqrPI7xpSK pas4mrAEs611Vf0oUSE/jmUCOvwNrRlaxL4YhwAQYubZdXZ/I0njY9oarmOqLq3VLN hcbs6Lz6C6WvZQN6J1eeS40umXRNek6lmk24Q78Y= Date: Mon, 15 Aug 2022 08:22:46 +0300 From: Laurent Pinchart To: Sergey Senozhatsky Cc: Greg KH , Paul Menzel , Wang Yating , Christoph Jechlitschek , Hao Yao , Andy Yeh , Sakari Ailus , Bingbu Cao , Tianshu Qiu , linux-media@vger.kernel.org, Mark Pearson , Dell.Client.Kernel@dell.com, linux-kernel@vger.kernel.org, Guenter Roeck , Andy Whitcroft , Kai-Heng Feng , Christian Schaller , Wouter Bolsterlee , Miguel Palhas , it+linux-media@molgen.mpg.de Subject: Re: Missing MIPI IPU6 camera driver for Intel Alder Lake laptops Message-ID: References: <52c87d91-422d-fca0-4dd5-bbaa559c81b6@molgen.mpg.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Sergei, On Mon, Aug 15, 2022 at 11:06:39AM +0900, Sergey Senozhatsky wrote: > On (22/08/11 17:30), Greg KH wrote: > > On Thu, Aug 11, 2022 at 06:08:55PM +0300, Laurent Pinchart wrote: > > > On Thu, Aug 11, 2022 at 05:02:40PM +0200, Greg KH wrote: > > > > On Thu, Aug 11, 2022 at 04:54:53PM +0300, Laurent Pinchart wrote: > > > > > For the time being, I agree with your recommendation to not buy these > > > > > devices if you care about camera support. > > > > > > > > I second this, don't buy these devices if the vendor is not willing to > > > > get their drivers upstreamed properly. > > > > > > "Not willing" may be a bit too harsh here. I wouldn't just blame Intel > > > for not upstreaming a driver if it turns out that the V4L2 API isn't a > > > good match and we have no proposal to provide an alternative. > > > > Did they propose an alternative? From what I saw here they didn't even > > attempt it, or did I miss that? > > The plan here is to land CAM kernel API first and then switch IPU > (driver and user-space) to it so that upstreaming for Intel will > be easier. In its current form, that API will likely have trouble going upstream. Reception wasn't exactly positive in the mainline kernel community. I would like to restate my recommendation of sitting down with the upstream community around the same (virtual) table to design an that will be suitable for the upstream kernel. -- Regards, Laurent Pinchart