From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.domeneshop.no (smtp.domeneshop.no [194.63.252.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D55FE23B8 for ; Sat, 24 Sep 2022 17:12:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tronnes.org ; s=ds202112; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:From: References:Cc:To:Subject:MIME-Version:Date:Message-ID:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=2dA7NrdAFVwwxz1Ncs6jZP4zAzFXbxFK4DvpJiCM8ls=; b=AK+lu02rWKtb7+a4fCjFHILAxu ihKcWXkdOqYyKNlkIG+nD7Wt0TfMCwtayq+V12LdRyyDx4At/ABH381jN+4haCpc60tB0N3JXQWk0 Zu7eCsdyiG+gLqQLPkRcL9NkoXHuOyWkTs4Pi95LJtGTGEH/Wtw3Q1Vd8/pjwvTGfPUWsm3jqn7BE ebyL/hozG9EqNkbr03k8eOkAyP6lh2oYy9ib1nCoRMw1ZFtYUKvwRjiDeX/Cy9yzntyiSx10KeqWE j3lbdElj+6C7TOuT0Yeoi7zHAWkuGuKstSl2ZIPh716tPc3XeN3Kk3vJ7w5w2oQlVCLVxu/Ye98/Z 7Iue42rg==; Received: from [2a01:799:961:d200:8cf6:761:40ec:1ff7] (port=58067) by smtp.domeneshop.no with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oc8hw-0003WM-8R; Sat, 24 Sep 2022 19:12:52 +0200 Message-ID: <229f1e19-dfe9-eb5b-321a-a2e6549979d1@tronnes.org> Date: Sat, 24 Sep 2022 19:12:49 +0200 Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.13.1 Subject: Re: [PATCH v2 32/33] drm/vc4: vec: Add support for more analog TV standards To: Maxime Ripard , Jernej Skrabec , Rodrigo Vivi , Ben Skeggs , David Airlie , Maxime Ripard , Joonas Lahtinen , Emma Anholt , Karol Herbst , Samuel Holland , Jani Nikula , Thomas Zimmermann , Daniel Vetter , Lyude Paul , Maarten Lankhorst , Tvrtko Ursulin , Chen-Yu Tsai Cc: Hans de Goede , nouveau@lists.freedesktop.org, Geert Uytterhoeven , Dave Stevenson , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Phil Elwell , intel-gfx@lists.freedesktop.org, Dom Cobley , linux-sunxi@lists.linux.dev, Mateusz Kwiatkowski , dri-devel@lists.freedesktop.org, =?UTF-8?Q?Noralf_Tr=c3=b8nnes?= References: <20220728-rpi-analog-tv-properties-v2-0-f733a0ed9f90@cerno.tech> <20220728-rpi-analog-tv-properties-v2-32-f733a0ed9f90@cerno.tech> From: =?UTF-8?Q?Noralf_Tr=c3=b8nnes?= In-Reply-To: <20220728-rpi-analog-tv-properties-v2-32-f733a0ed9f90@cerno.tech> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Den 22.09.2022 16.25, skrev Maxime Ripard: > From: Mateusz Kwiatkowski > > Add support for the following composite output modes (all of them are > somewhat more obscure than the previously defined ones): > > - NTSC_443 - NTSC-style signal with the chroma subcarrier shifted to > 4.43361875 MHz (the PAL subcarrier frequency). Never used for > broadcasting, but sometimes used as a hack to play NTSC content in PAL > regions (e.g. on VCRs). > - PAL_N - PAL with alternative chroma subcarrier frequency, > 3.58205625 MHz. Used as a broadcast standard in Argentina, Paraguay > and Uruguay to fit 576i50 with colour in 6 MHz channel raster. > - PAL60 - 480i60 signal with PAL-style color at normal European PAL > frequency. Another non-standard, non-broadcast mode, used in similar > contexts as NTSC_443. Some displays support one but not the other. > - SECAM - French frequency-modulated analog color standard; also have > been broadcast in Eastern Europe and various parts of Africa and Asia. > Uses the same 576i50 timings as PAL. > > Also added some comments explaining color subcarrier frequency > registers. > > Signed-off-by: Mateusz Kwiatkowski > Signed-off-by: Maxime Ripard > Acked-by: Noralf Trønnes