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 21E1CC433EF for ; Wed, 9 Mar 2022 13:41:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233257AbiCINmc (ORCPT ); Wed, 9 Mar 2022 08:42:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57220 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232229AbiCINm0 (ORCPT ); Wed, 9 Mar 2022 08:42:26 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id F273617B0E0 for ; Wed, 9 Mar 2022 05:41:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1646833285; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ssBZVyi4+h9kP2qv31uprsTOl0+0RRXY3OyMT9dWw3w=; b=Z5a4hrKsr2dPkMlgsGPgW1Kw8YljupKRlvlI0UeN3SHhGpstpwX624wjmLp06O+lXLKBk3 Yab8j1fRVqbFWEM9Lx5shCgaSnavfz80rMFOwzpgsKh4+gJBl18B4dzDyNFCDSLM5H7G+e O4EHiTKYzn62g9LiNa+gjNNAgNi3hJg= Received: from mail-wr1-f72.google.com (mail-wr1-f72.google.com [209.85.221.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-475-4BsrzUBxPqaAXz_8KgS_pQ-1; Wed, 09 Mar 2022 08:41:24 -0500 X-MC-Unique: 4BsrzUBxPqaAXz_8KgS_pQ-1 Received: by mail-wr1-f72.google.com with SMTP id p18-20020adfba92000000b001e8f7697cc7so768954wrg.20 for ; Wed, 09 Mar 2022 05:41:24 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=ssBZVyi4+h9kP2qv31uprsTOl0+0RRXY3OyMT9dWw3w=; b=hBPtpkstLmIpGH3npa7NGprr7Lxdwnoj4LQpv3UA+BShcJzKUqZYPw8wp4GzLjc9hT VX5RGZfAhmggszBn4b6uj32Q8o0DUI8hmkgtiX/bmb+tnPhcw5Sol6qY9ukO8iHLkkN6 JwooUMCv1A+nAfG+mgQe61kpQ9KfU0lrhneuLvMomIOJ5GUJLCcvqSbQxj4PJGs/n6eZ wJbfwcP/7cw4jdXY0bGkGBJCppZBGZNhi81IdlqZN/MXjV+viJ0bd+TvibN0UiEqVlhr 5N0rHH1o4YtRq2ho1VdrkLLu7uNKk9cKUyPrSc98kZkREF44YQfP1Dq8GpnZGNOGya/j cCCg== X-Gm-Message-State: AOAM533ogY9lYbeV8RtoO4R0Uppm4iG5ztxhk8tWnY5hwTgezlrlvG0p CJ1k943hMGGyI+X0Zb2W7gjbQov30wV1jbGhGulyhBxfr4v5r6bUIG3vLWVgWuWN/5BSwf9wwYo T73DzWRztUiSpF09xaMICm19q X-Received: by 2002:a5d:538b:0:b0:1f1:e60b:20c2 with SMTP id d11-20020a5d538b000000b001f1e60b20c2mr13695568wrv.294.1646833283586; Wed, 09 Mar 2022 05:41:23 -0800 (PST) X-Google-Smtp-Source: ABdhPJyES6IHb68vtll06LYWTE9X9Tv+reEFiMr6+v6lhyVKOWCvdsUheCN8hBAtdi7CCeUXh3nUHQ== X-Received: by 2002:a5d:538b:0:b0:1f1:e60b:20c2 with SMTP id d11-20020a5d538b000000b001f1e60b20c2mr13695542wrv.294.1646833283309; Wed, 09 Mar 2022 05:41:23 -0800 (PST) Received: from [192.168.1.102] ([92.176.231.205]) by smtp.gmail.com with ESMTPSA id bl20-20020adfe254000000b001f1fa450a3asm2676460wrb.72.2022.03.09.05.41.22 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 09 Mar 2022 05:41:22 -0800 (PST) Message-ID: <09acb08a-7b96-69d0-2fb9-80381e234877@redhat.com> Date: Wed, 9 Mar 2022 14:41:21 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [PATCH v2 RFC 10/10] drm/fourcc: Add DRM_FORMAT_D[1248] Content-Language: en-US To: Geert Uytterhoeven , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Sam Ravnborg , Helge Deller Cc: dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-m68k@vger.kernel.org, linux-kernel@vger.kernel.org References: From: Javier Martinez Canillas In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 3/7/22 21:52, Geert Uytterhoeven wrote: > As Rn is light-on-dark, and Cn can be any colors, there are currently > no fourcc codes to describe dark-on-light displays. > > Introduce fourcc codes for a single-channel dark-on-light frame buffer > format with two, four, sixteen, or 256 darkness levels. > > As the number of bits per pixel may be less than eight, some of these > formats rely on proper block handling for the calculation of bits per > pixel and pitch. > > Signed-off-by: Geert Uytterhoeven > --- Reviewed-by: Javier Martinez Canillas -- Best regards, Javier Martinez Canillas Linux Engineering Red Hat