From patchwork Tue Jan 5 13:46:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Tang X-Patchwork-Id: 12001147 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=-13.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 5B86DC433DB for ; Wed, 6 Jan 2021 08:53:04 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C776723107 for ; Wed, 6 Jan 2021 08:53:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C776723107 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none 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 5FA0D89D4A; Wed, 6 Jan 2021 08:52:54 +0000 (UTC) Received: from mail-pl1-x629.google.com (mail-pl1-x629.google.com [IPv6:2607:f8b0:4864:20::629]) by gabe.freedesktop.org (Postfix) with ESMTPS id BE2796E104 for ; Tue, 5 Jan 2021 13:46:25 +0000 (UTC) Received: by mail-pl1-x629.google.com with SMTP id s15so16378273plr.9 for ; Tue, 05 Jan 2021 05:46:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=zHfnNx0J3r3BjI2ETPq9kmvQWmw+pKoPMGoXArL8lcQ=; b=I1/5c9FKHoAjrf+5PqehvC/HSKYNkE7sAkdo7sz7TNmLP5hbCBQZJ9E8Dav+Glou5w Ynjc+9K2JwpOTOHftifYppyYWvuJDe6YGZZXl0aje+qB5V3n7P7r7PgKAUZD7Dltpzo8 f//k/PBy/HdHVqUSP4iairbTIUjbojbqpgtnhGvoqjr9sjUJzP2w0aY1zSqrlLLCTJ41 8Et27tjY+5YyVX+PhU53hTl1/qaLJPYmB90dKHQZOQfaEhJScVp73Imbxqf//fu16chM JYAeXwGNNC7gERJ07hbN0D4rclkuGhsemAXOSLgmvM6ooRyK9bNeiu2rFfvH7YeuWH+u suuQ== 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; bh=zHfnNx0J3r3BjI2ETPq9kmvQWmw+pKoPMGoXArL8lcQ=; b=GDu5K9q1m3TBe1HEZdeZFht9ZGD+BT6iCURXAOOc0wTWZc0/ZF7POzIOsO6n5KNliW Jvd0zx5jeShh/5KATCON7aNrh/2oT/fx54zI/dascL8FYzQNCfbi4z5LE7mjXSP5/AgD /OOzb2AnDAndtYWsMG3/yPnE+eWUhsZF5LNl6Qbyz3kHQ7xHMA0SNBoau76SaqlGJ3ji DyMzxVmAKANKocqS4GOc5aT170QCAAhsrzo3rD1h4CZc3auRHdpLVlb+23H3jmgOo2LL XDRZ0wjld4PDO7FkN9pqX+h1FBlVsGoAS3LM6SRS2Hzx497BXGlndKUafchvEPwJKovS rG+w== X-Gm-Message-State: AOAM530BPLqPvSXuL0IvU+pVLyUWPtb7cdnLlMdkA1eiYDplzpyMz54e usNwvl9E5i74PuxtXfTE3Nw= X-Google-Smtp-Source: ABdhPJyP4cHof0BEv5VIopYvsOWM1sFoMETO0LpHexGY1RBUIVD1pe2G4kV/wKnyxYyBobhqaMP/YQ== X-Received: by 2002:a17:90a:fcc:: with SMTP id 70mr4062558pjz.168.1609854385451; Tue, 05 Jan 2021 05:46:25 -0800 (PST) Received: from nj08008nbu.spreadtrum.com ([117.18.48.82]) by smtp.gmail.com with ESMTPSA id w63sm57582284pfc.20.2021.01.05.05.46.20 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 05 Jan 2021 05:46:24 -0800 (PST) From: Kevin Tang To: maarten.lankhorst@linux.intel.com, mripard@kernel.org, sean@poorly.run, airlied@linux.ie, daniel@ffwll.ch, robh+dt@kernel.org, mark.rutland@arm.com, kevin3.tang@gmail.com Subject: [PATCH v3 1/6] dt-bindings: display: add Unisoc's drm master bindings Date: Tue, 5 Jan 2021 21:46:02 +0800 Message-Id: <1609854367-2720-2-git-send-email-kevin3.tang@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1609854367-2720-1-git-send-email-kevin3.tang@gmail.com> References: <1609854367-2720-1-git-send-email-kevin3.tang@gmail.com> X-Mailman-Approved-At: Wed, 06 Jan 2021 08:52:53 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: orsonzhai@gmail.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, zhang.lyra@gmail.com MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Kevin Tang The Unisoc DRM master device is a virtual device needed to list all DPU devices or other display interface nodes that comprise the graphics subsystem Unisoc's display pipeline have several components as below description, multi display controllers and corresponding physical interfaces. For different display scenarios, dpu0 and dpu1 maybe binding to different encoder. E.g: dpu0 and dpu1 both binding to DSI for dual mipi-dsi display; dpu0 binding to DSI for primary display, and dpu1 binding to DP for external display; Cc: Orson Zhai Cc: Chunyan Zhang Signed-off-by: Kevin Tang Reviewed-by: Rob Herring --- .../display/sprd/sprd,display-subsystem.yaml | 64 ++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/sprd/sprd,display-subsystem.yaml diff --git a/Documentation/devicetree/bindings/display/sprd/sprd,display-subsystem.yaml b/Documentation/devicetree/bindings/display/sprd/sprd,display-subsystem.yaml new file mode 100644 index 0000000..3d107e9 --- /dev/null +++ b/Documentation/devicetree/bindings/display/sprd/sprd,display-subsystem.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/sprd/sprd,display-subsystem.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Unisoc DRM master device + +maintainers: + - Kevin Tang + +description: | + The Unisoc DRM master device is a virtual device needed to list all + DPU devices or other display interface nodes that comprise the + graphics subsystem. + + Unisoc's display pipeline have several components as below description, + multi display controllers and corresponding physical interfaces. + For different display scenarios, dpu0 and dpu1 maybe binding to different + encoder. + + E.g: + dpu0 and dpu1 both binding to DSI for dual mipi-dsi display; + dpu0 binding to DSI for primary display, and dpu1 binding to DP for external display; + + +-----------------------------------------+ + | | + | +---------+ | + +----+ | +----+ +---------+ |DPHY/CPHY| | +------+ + | +----->+dpu0+--->+MIPI|DSI +--->+Combo +----->+Panel0| + |AXI | | +----+ +---------+ +---------+ | +------+ + | | | ^ | + | | | | | + | | | +-----------+ | + | | | | | + |APB | | +--+-+ +-----------+ +---+ | +------+ + | +----->+dpu1+--->+DisplayPort+--->+PHY+--------->+Panel1| + | | | +----+ +-----------+ +---+ | +------+ + +----+ | | + +-----------------------------------------+ + +properties: + compatible: + const: sprd,display-subsystem + + ports: + $ref: /schemas/types.yaml#/definitions/phandle-array + description: + Should contain a list of phandles pointing to display interface port + of DPU devices. + +required: + - compatible + - ports + +additionalProperties: false + +examples: + - | + display-subsystem { + compatible = "sprd,display-subsystem"; + ports = <&dpu_out>; + }; +