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 X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 821B6C43603 for ; Mon, 9 Dec 2019 12:20:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5752A207FD for ; Mon, 9 Dec 2019 12:20:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="ToMamDlB" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727678AbfLIMUt (ORCPT ); Mon, 9 Dec 2019 07:20:49 -0500 Received: from mail-pl1-f196.google.com ([209.85.214.196]:38061 "EHLO mail-pl1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727645AbfLIMUn (ORCPT ); Mon, 9 Dec 2019 07:20:43 -0500 Received: by mail-pl1-f196.google.com with SMTP id o8so5748017pls.5 for ; Mon, 09 Dec 2019 04:20:43 -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=ToMamDlBdtGc6HWR4u6Df1/w+9GuqbMO5QPDj43TnsU66oqMIBvyqqQBbh2UErjkdE ndZN3Ao+3mrQd04Uw0c37+CG4AYIybK1OXP/qN4f+nd1adxV0qshJiFycPK4QMsgGIR/ ZB/6i1hJ7AkrmqZoFw3fAHK+2qNzCedXkJjDI= 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=iIVrJ5k7Dedjl7WP4wScQgxeE7b1w5XQNrGD8tb57p9KnW3OLbDD1nlbsqdR5iHMIm 2eiS0H3Mc2Joa8cvQTkxikJRfht3VPRvEeaMCFroyYCQlIyZ2UkrnS8+A2pwN7dGpdr3 fWCKDGu6y+SsUoiFNhqQMeVKY5mYL5jWAxe0Mu62nuluuMpGnP52NhCg172KQM8DAdpJ MXLGJ96ZDN1NMTJtty++7LSIUZF5y/tvZt7oF64jg2soHEcrqlSwPlnGftXkbxL+AYX6 4izcm/97MKdOHI7TLap+a1TH6fMr4ht/2EdwC33O5YX9ykgCM0dZdpM6p/jQ0sWdGYFE 0j9w== X-Gm-Message-State: APjAAAVXsFQMxEIvf0o0QFEThGcmzT8HIAJspJpXizT3Y9+U6jPDK4ah iixrrlX2xPcQTexJrOpNCnBcXQ== X-Google-Smtp-Source: APXvYqysHMmAFrD3m3tlj9ZX9fug8HAdxXWYvC6SD36Gi+NKgGLW+KDuHH9YvK1YhwCqLO5lC23yhQ== X-Received: by 2002:a17:902:ac88:: with SMTP id h8mr28987310plr.131.1575894042818; Mon, 09 Dec 2019 04:20:42 -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 p21sm26733813pfn.103.2019.12.09.04.20.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Dec 2019 04:20:42 -0800 (PST) From: Hsin-Yi Wang To: dri-devel@lists.freedesktop.org Cc: Archit Taneja , Nicolas Boichat , Enric Balletbo i Serra , Thierry Reding , Russell King , Matthias Brugger , p.zabel@pengutronix.de, linux-kernel@vger.kernel.org Subject: [PATCH 3/4] dt-bindings: drm/bridge: analogix-anx78xx: support bypass GPIO Date: Mon, 9 Dec 2019 20:20:12 +0800 Message-Id: <20191209122013.178564-4-hsinyi@chromium.org> X-Mailer: git-send-email 2.24.0.393.g34dc348eaf-goog In-Reply-To: <20191209122013.178564-1-hsinyi@chromium.org> References: <20191209122013.178564-1-hsinyi@chromium.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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>; + }; + }; + }; + }; + -- 2.24.0.393.g34dc348eaf-goog