From patchwork Thu Dec 7 15:58:49 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 121009 Delivered-To: patch@linaro.org Received: by 10.140.22.227 with SMTP id 90csp8534749qgn; Thu, 7 Dec 2017 08:00:34 -0800 (PST) X-Google-Smtp-Source: AGs4zMa0+yo0r37OKO/qAVWWelfnIomcXCOdr9WMmbkXngNWn8WlzUHYEzgbQr55Pz2tIOhPyZRu X-Received: by 10.99.7.143 with SMTP id 137mr25238653pgh.158.1512662434544; Thu, 07 Dec 2017 08:00:34 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1512662434; cv=none; d=google.com; s=arc-20160816; b=k6gAiopc8M5I7hmVsUVohEVqixFfnHjXV5nop2ochCEtcVn14OMYAEgXPyW7WOkOXq ugf+tAu/ttKsBGaZPYGCvNvjfZ/+gVWdLrjjF8t1MGGYoE2MTwtmqSLQixK0XeNkHjXE /UQnCrY5JI3hAmqIG4ohk9eYsgggguF0O9Wv2MVtgNNpc66oYubRfSGCWzHDEpO2SnF5 /1phCNVVH/sjDXFC0dc2SyVSlfmeagy0qGxP+ddNoCJ3p3PDqkiW6qGOEfSd7QKhKfH0 2rgqHcJF6fbKRNZq9A/6gXyAuNs3BS2sWkgH0Z40HiCwgMxTnyDNEL4B8m3m6R9zLoht vNPA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:mime-version :list-subscribe:list-help:list-post:list-archive:list-unsubscribe :list-id:precedence:cc:references:in-reply-to:references:in-reply-to :message-id:date:subject:to:from:delivered-to :arc-authentication-results; bh=7pzuPYkPzeqia9I/2Qq86oIfVyFcYSUvcYEXiflehmg=; b=H1+I1fnDbmoN1oDzXXfFeB1BgQWRSAco5J8hyvOsj5DRRj8WtLPGPcUq9pHISNwX9a HxZL12OOknH61DikCoSXFi0QM1Y1/X8Vm92K6oUPDEDVuD3RC985Cmq2rvUPb7lkHP6a NwK42nzxlmk4vLaULenGV0PNX4FwQ7dKZ/CrfRaP3Vf1FDdWuqCXbhVWitxOMnYWMMhl AXzhwNSZ00euPhDcxjxP9GgELxIP6qKFY+KbGsa9VIR+ZV56ARwPJsTcuJOpD3U+F13S LvIWZR2Nq9A4lRQzD1ckPzTYkFiGnIPRNr0zC5EOGALCn8hbJ9fYVn+HRA88xBkWn+sB HrjA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of dri-devel-bounces@lists.freedesktop.org designates 131.252.210.177 as permitted sender) smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Return-Path: Received: from gabe.freedesktop.org (gabe.freedesktop.org. [131.252.210.177]) by mx.google.com with ESMTPS id g3si3915419pld.709.2017.12.07.08.00.34 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 07 Dec 2017 08:00:34 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of dri-devel-bounces@lists.freedesktop.org designates 131.252.210.177 as permitted sender) client-ip=131.252.210.177; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of dri-devel-bounces@lists.freedesktop.org designates 131.252.210.177 as permitted sender) smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BE7DB6E844; Thu, 7 Dec 2017 15:59:29 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail.free-electrons.com (mail.free-electrons.com [62.4.15.54]) by gabe.freedesktop.org (Postfix) with ESMTP id 9F0E96E83D for ; Thu, 7 Dec 2017 15:59:27 +0000 (UTC) Received: by mail.free-electrons.com (Postfix, from userid 110) id 68F4020D19; Thu, 7 Dec 2017 16:59:26 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on mail.free-electrons.com X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,SHORTCIRCUIT shortcircuit=ham autolearn=disabled version=3.4.0 Received: from localhost (unknown [185.94.189.187]) by mail.free-electrons.com (Postfix) with ESMTPSA id 23BD120D1F; Thu, 7 Dec 2017 16:59:16 +0100 (CET) From: Maxime Ripard To: Daniel Vetter , David Airlie , Chen-Yu Tsai , Maxime Ripard Subject: [PATCH v4 04/15] dt-bindings: display: sun4i-drm: Add A83T pipeline Date: Thu, 7 Dec 2017 16:58:49 +0100 Message-Id: <4ceba537249abbfd5f8aa2d82afb93f84dc20359.1512662253.git-series.maxime.ripard@free-electrons.com> X-Mailer: git-send-email 2.14.3 In-Reply-To: References: In-Reply-To: References: Cc: Mark Rutland , Thomas Petazzoni , jernej.skrabec@siol.net, plaes@plaes.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Rob Herring , thierry.reding@gmail.com, linux-arm-kernel@lists.infradead.org, icenowy@aosc.io X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The A83T has two video pipelines in parallel that looks quite similar to the other SoCs. The video planes are handled through a controller called the mixer, and the video signal is then passed to the timing controller (TCON). And while there is two instances of the mixers and TCONs, they have a significant number of differences. The TCONs are quite easy to deal with, one is supposed to generate TV (in the broader term, so including things like HDMI) signals, the other one LCD (so RGB, LVDS, DSI) signals. And while they are called TCON0 and TCON1 in the A83t datasheet, newer SoCs call them TCON-TV and TCON-LCD, which seems more appropriate. However, the mixers differ mostly by their capabilities, with some features being available only in the first one, or the number of planes they expose, but also through their register layout. And while the capabilities could be represented as properties, the register layout differences would need to express all the registers offsets as properties, which is usually quite bad. Especially since documentation on that hardware block is close to non-existant and we don't even have the list of all those registers in the first place. So let's call them mixer 0 and 1 in our compatibles, even though the name is pretty bad... At the moment, we only have tested the code on a board that has a single display output, so we're leaving the tcon-tv and mixer1 out. Reviewed-by: Rob Herring Reviewed-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard --- Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt index 1e21cfaac9e2..9f073af4c711 100644 --- a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt +++ b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt @@ -93,6 +93,7 @@ Required properties: * allwinner,sun6i-a31s-tcon * allwinner,sun7i-a20-tcon * allwinner,sun8i-a33-tcon + * allwinner,sun8i-a83t-tcon-lcd * allwinner,sun8i-v3s-tcon - reg: base address and size of memory-mapped region - interrupts: interrupt associated to this IP @@ -225,6 +226,7 @@ supported. Required properties: - compatible: value must be one of: + * allwinner,sun8i-a83t-de2-mixer-0 * allwinner,sun8i-v3s-de2-mixer - reg: base address and size of the memory-mapped region. - clocks: phandles to the clocks feeding the mixer @@ -254,6 +256,7 @@ Required properties: * allwinner,sun6i-a31s-display-engine * allwinner,sun7i-a20-display-engine * allwinner,sun8i-a33-display-engine + * allwinner,sun8i-a83t-display-engine * allwinner,sun8i-v3s-display-engine - allwinner,pipelines: list of phandle to the display engine