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 EEB29C6FD18 for ; Wed, 29 Mar 2023 13:19:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230182AbjC2NTP (ORCPT ); Wed, 29 Mar 2023 09:19:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42084 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230267AbjC2NTG (ORCPT ); Wed, 29 Mar 2023 09:19:06 -0400 Received: from mail-pj1-x102f.google.com (mail-pj1-x102f.google.com [IPv6:2607:f8b0:4864:20::102f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2E79A55AE for ; Wed, 29 Mar 2023 06:18:41 -0700 (PDT) Received: by mail-pj1-x102f.google.com with SMTP id q102so14010008pjq.3 for ; Wed, 29 Mar 2023 06:18:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1680095919; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=nd2Hzi5pbnX457/tZ1SGDUudK/Mgpe+Ly4/pUeQ6HnM=; b=BxNdyUGAorjHPinmo8knKGhWp8mcw/YgRk4iYNWDGp+87Odbgo0V0ajx8K99ZvbH3m uK1o/myHvEIucTiBG5DYCQ2UcxcizWIeVayEhlo/8lScUog6XsvXM6+6OOEyJd/pLOs2 /RttKWJwSMHDK2hDoJcL5A8izTKP8wEnKCyoc= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1680095919; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=nd2Hzi5pbnX457/tZ1SGDUudK/Mgpe+Ly4/pUeQ6HnM=; b=LtX6oJKiDAHJqVzWSd/YJA5YRc36R7fsoPm8drDJYL4gO0DX127xSt3rTFn4R2+bkB J+Qm7LA6gEjQkXmOWuolziHLjd9ful7209RebmTlmqN+OD6wiFEWjKw031Lcym8eWJhk Ls0dw7EJrYsVeDYa0gDBAqinREIdqHvapPwWrMSu1rX3D6Ab4p3PKYBYf7Ka/IB83afY fmfohO5BQ0hKbMxZSEOcO5C2mUw3S64apmj2xd/rT/mLvYJGyZdZ9PnjrHnJ+F3NKU7m RCzVP7ycXel3T/fdXyTc6hun6nIn3y7C1IOfIq2SzJMcJwL46bxr/U2xPAKYd81/JtAT ydVg== X-Gm-Message-State: AAQBX9e45bJGERS4FufYMm1MOo+NnBVEHadErnOmWW/sneW3ixyGiWOB dgG3x1n1AIj0zPrr6I0Fvc9glg== X-Google-Smtp-Source: AKy350bk2/fzr+dtM9w5K/plrUVW+fEKnyzucVJ/a5hXz7GHf87bUlhqvKmrLM/SThMMOW9uCmEMAA== X-Received: by 2002:a17:90b:1d8e:b0:23f:37b6:48f4 with SMTP id pf14-20020a17090b1d8e00b0023f37b648f4mr20675024pjb.43.1680095918961; Wed, 29 Mar 2023 06:18:38 -0700 (PDT) Received: from localhost.localdomain ([2405:201:c00a:a047:206d:4722:c4fa:e845]) by smtp.gmail.com with ESMTPSA id s16-20020a17090b071000b0023f5c867f82sm1400192pjz.41.2023.03.29.06.18.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Mar 2023 06:18:38 -0700 (PDT) From: Jagan Teki To: Dave Stevenson , Maxime Ripard , Maarten Lankhorst , Thomas Zimmermann , David Airlie , Daniel Vetter , Andrzej Hajda , Neil Armstrong , Robert Foss , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Sam Ravnborg , Rob Herring , Krzysztof Kozlowski Cc: linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, Marek Vasut , linux-amarula , Jagan Teki Subject: [PATCH v7 08/12] ARM: dts: sun8i: a33: Add endpoint@0 to dsi_in_tcon0 Date: Wed, 29 Mar 2023 18:46:14 +0530 Message-Id: <20230329131615.1328366-9-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230329131615.1328366-1-jagan@amarulasolutions.com> References: <20230329131615.1328366-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The DSI downstream devices are likely to be Panel, Bridge and I2C-Configured Bridge. It is possible to connect all three devices using upstream OF-graph port or ports node however only Panel and Bridge are possible to connect via child node but not possible to connect I2C-Configured Bridge via child node since I2C-Configure bridges are child of I2C not upstream DSI hosts and it must represent them via port or ports with endpoint linking. Allwinner R33 DSI node already has a port so add endpoint 0 for input tcon so that the downstream DSI devices can use endpoint 1 to connect Panel or Bridge or I2C-Configured Bridge. An example of the I2C-Configured downstream bridge representation is, i2c1 { bridge@1b { compatible = "ti,dlpc3433"; ports { port@0 { reg = <0>; bridge_in_dsi: endpoint { remote-endpoint = <&dsi_out_bridge>; data-lanes = <1 2 3 4>; }; }; port@2 { reg = <2>; bridge_out_dmd: endpoint { remote-endpoint = <&dmd_out_bridge>; }; }; }; }; }; dsi { compatible = "allwinner,sun6i-a31-mipi-dsi"; port { dsi_in_tcon0: endpoint@0 { reg = <0>; remote-endpoint = ; }; dsi_out_bridge: endpoint@1 { reg = <1>; remote-endpoint = <&bridge_in_dsi>; }; }; }; Note that existing device bindings are untouched and still represent the downstream devices via child nodes since the sun6i-mipi-dsi host will migrate to a standardized single helper to lookup for a downstream device via child or OF-graph port or port node. Signed-off-by: Jagan Teki --- Changes for v7: - new patch arch/arm/boot/dts/sun8i-a33.dtsi | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/sun8i-a33.dtsi b/arch/arm/boot/dts/sun8i-a33.dtsi index b3d1bdfb5118..50c2424ec31e 100644 --- a/arch/arm/boot/dts/sun8i-a33.dtsi +++ b/arch/arm/boot/dts/sun8i-a33.dtsi @@ -269,7 +269,11 @@ dsi: dsi@1ca0000 { #size-cells = <0>; port { - dsi_in_tcon0: endpoint { + #address-cells = <1>; + #size-cells = <0>; + + dsi_in_tcon0: endpoint@0 { + reg = <0>; remote-endpoint = <&tcon0_out_dsi>; }; }; -- 2.25.1