From patchwork Mon Dec 9 14:50:15 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hsin-Yi Wang X-Patchwork-Id: 1206318 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=chromium.org header.i=@chromium.org header.b="XogCXVx2"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 47WmP01CNlz9sR0 for ; Tue, 10 Dec 2019 01:51:48 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726783AbfLIOvr (ORCPT ); Mon, 9 Dec 2019 09:51:47 -0500 Received: from mail-pl1-f193.google.com ([209.85.214.193]:45175 "EHLO mail-pl1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726892AbfLIOvq (ORCPT ); Mon, 9 Dec 2019 09:51:46 -0500 Received: by mail-pl1-f193.google.com with SMTP id w7so5897421plz.12 for ; Mon, 09 Dec 2019 06:51:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=jJwCq9E5sHUES1apw52pvzBBVDCgoOmF9UzMrlF+I9Y=; b=XogCXVx2RXzDAutpzGtBCHE+T8kLmeCQvQsMdlbs1tDq7y1UrkAwc/k+g7CufIO+PA dpQKZ4iazoJSwFFuHkVnZErr6o6mC7eXyQQPeDi2oYU+ZfEdPXZgi7FkAEORJ/7BN9k1 evO2wVdIGUA1AbJjhA2vmOqgRcmVLhvVO95t0= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=jJwCq9E5sHUES1apw52pvzBBVDCgoOmF9UzMrlF+I9Y=; b=jPkC3t2ZR0KtfKtBv7hsKtRMlkCKBvLJN7RHjVlxDbcPbtDzVRz6PxTS+XJTL7koCN 6VSW8I18f90S6rZx/5HOqzrwIJH7V0MjeUpHAPR1GEqIH0VgWkgwtV09qs25ac30ASti BlKc2OvAmbPzrIfG4Mlx3/idobDgkbfEaY/NaJ3bYe4IKS92WaiVEbbBQsE/G6LrZW06 N2Y/6dhOmWVhwPKLQxqnF2FopK5nmW0Plal9Lkh3qdzu/rSdqpwzwBQWlFCqpkJXCY6T Ka4w9urzFG0/bn2ZIIICB7Q78icMqTtu7U2eh2O1CWovGN6QQz4m2xaJorRer6q9sVhP H++g== X-Gm-Message-State: APjAAAX6fS7J0dL5h4AgPYihoLfpfTqmYM78IVti5qp424n9CQ6RVPvS 28MkGgymhlZUz9ifib45IXz1jg== X-Google-Smtp-Source: APXvYqxU02o6BtUzY2uYrPaZe5xjkP17fMbo/9XayXiUcb1MB3mIfbRhi9fLq+g8w3r6KCxzsaaOJw== X-Received: by 2002:a17:902:a503:: with SMTP id s3mr5631915plq.38.1575903106015; Mon, 09 Dec 2019 06:51:46 -0800 (PST) Received: from hsinyi-z840.tpe.corp.google.com ([2401:fa00:1:10:b852:bd51:9305:4261]) by smtp.gmail.com with ESMTPSA id k16sm29143119pfh.97.2019.12.09.06.51.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Dec 2019 06:51:45 -0800 (PST) From: Hsin-Yi Wang To: dri-devel@lists.freedesktop.org Cc: David Airlie , Daniel Vetter , Rob Herring , Mark Rutland , Nicolas Boichat , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Andrzej Hajda , Neil Armstrong , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Archit Taneja , p.zabel@pengutronix.de, Enric Balletbo i Serra , Matthias Brugger , Russell King Subject: [PATCH RESEND 3/4] dt-bindings: drm/bridge: analogix-anx78xx: support bypass GPIO Date: Mon, 9 Dec 2019 22:50:15 +0800 Message-Id: <20191209145016.227784-4-hsinyi@chromium.org> X-Mailer: git-send-email 2.24.0.393.g34dc348eaf-goog In-Reply-To: <20191209145016.227784-1-hsinyi@chromium.org> References: <20191209145016.227784-1-hsinyi@chromium.org> MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Support optional feature: bypass GPIO. Some SoC (eg. mt8173) have a hardware mux that connects to 2 ports: anx7688 and hdmi. When the GPIO is active, the bridge is bypassed. Signed-off-by: Hsin-Yi Wang --- .../bindings/display/bridge/anx7688.txt | 40 ++++++++++++++++++- 1 file changed, 39 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/display/bridge/anx7688.txt b/Documentation/devicetree/bindings/display/bridge/anx7688.txt index 78b55bdb18f7..44185dcac839 100644 --- a/Documentation/devicetree/bindings/display/bridge/anx7688.txt +++ b/Documentation/devicetree/bindings/display/bridge/anx7688.txt @@ -15,10 +15,13 @@ Required properties: Optional properties: - Video port for HDMI input, using the DT bindings defined in [1]. + - bypass-gpios : External GPIO. If this GPIO is active, we assume + the bridge is bypassed (e.g. by a mux). + - pinctrl-0, pinctrl-names: the pincontrol settings to configure bypass GPIO. [1]: Documentation/devicetree/bindings/media/video-interfaces.txt -Example: +Example 1: anx7688: anx7688@2c { compatible = "analogix,anx7688"; @@ -30,3 +33,38 @@ Example: }; }; }; + +Example 2: + + anx7688: anx7688@2c { + compatible = "analogix,anx7688"; + status = "okay"; + reg = <0x2c>; + ddc-i2c-bus = <&hdmiddc0>; + + bypass-gpios = <&pio 36 GPIO_ACTIVE_HIGH>; + pinctrl-names = "default"; + pinctrl-0 = <&hdmi_mux_pins>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { /* input */ + reg = <0>; + + anx7688_in: endpoint { + remote-endpoint = <&hdmi_out_anx>; + }; + }; + + port@1 { /* output */ + reg = <1>; + + anx7688_out: endpoint { + remote-endpoint = <&hdmi_connector_in>; + }; + }; + }; + }; +