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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 072DBCD4F3C for ; Tue, 19 May 2026 16:08:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 575D410EDD3; Tue, 19 May 2026 16:08:54 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="YJKfjuki"; dkim-atps=neutral Received: from mail-wr1-f49.google.com (mail-wr1-f49.google.com [209.85.221.49]) by gabe.freedesktop.org (Postfix) with ESMTPS id EB37610EDC8 for ; Tue, 19 May 2026 16:08:46 +0000 (UTC) Received: by mail-wr1-f49.google.com with SMTP id ffacd0b85a97d-43fe608cb92so2376928f8f.2 for ; Tue, 19 May 2026 09:08:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1779206925; x=1779811725; darn=lists.freedesktop.org; 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=UOkRbl/Z3KIo8IHWL0YYZ2T30bRveRdlbF9KAPZu9kI=; b=YJKfjukiQGIQBY6WItOr6MtekYAmXanWyeFvyzNRr9hAZMU5kI42f/So26oQZ28HAI 9GXkRkV6elV9u62zT+XtXIa/KfCOuRqC3EmJO6k+cGvPV+1K7FmKmY2DnRDMG020afC6 akl+6QllbaU0xIrDbO0tNJow6npGijqslBfw8PXFnnTZbb85peRVR4/6+FwleTirYcsG 3tEYZxd++wg5ihadkNDZag0I8NatdGvp2mHxnfpLMB0S+JzhRBSh6/9gU5UWDP8W2WTS xjgjUc5017sSL0wCuqImKZ3rC0EdFyT9Ye2CHGRRhjNqnn++wzCucUXVSVPC3r2vetoT 2aaw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779206925; x=1779811725; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=UOkRbl/Z3KIo8IHWL0YYZ2T30bRveRdlbF9KAPZu9kI=; b=dv7ANIP8vD5v2gI0XXGM1sM8VG5n2XNEcRSHjWJh4s7vtAIMNMkk+tcB2SQpWmZXbc tbJRzkDAQH82rd30k57X1ri1wdqWwhL0YmBZdays65YR3n410H+Vjj13xH3ewIYRBT7V 4xYzXDgILPUpS1qkQBbDppa1KAuW0YUooIAybnpfrB+3sKltBuC3NjHmUG/tN8uC91+c XCzCvk8q4gLUBa1NibuhwH0tSlRRbwBUy8m7e75rP8rhHogMAGpzhCoALvrYha+bEhKd EagllP1uHWsGOSWEVYCgvdmKx3Wt1d9xnDr68UZ09CLP9Pn7X6e0sN07J1DWR//JQgLd YJUA== X-Gm-Message-State: AOJu0Yz4TMtIhNAtR7uyljVxoknMpvyHp0xlZRrUyIRelqo+65Kn+p1l 0aCSnd4cKK4zXrYZD0y+SnxUnf6Z7QuxcSqg9BXOsteHXjmfNfZcxgFz X-Gm-Gg: Acq92OHedI0+8FfFsNDVHI5tpY7Z177v2sfUC2Xq3vFZx6M2pS79kdYPEuDsbIQwxyu eQm+uM9HX6t751HdfxXtWWIBGwuFjsGWGAlvFQCQGJBUyHZLgneue0T5SSH7Kd6guWOuT0y7aCc AITJfy8Q8OkMsk+fTZZhyaJzbFtcJfRbjJxm8LvbUn9bUUWSrAA6xCF1bgNHa3IYAfEtZJb0Dyh H1Mn55Ta7MhBRN6CGqvtkN3AadJ7A93HQhHlyEAY6FfLd3UGLP4rKMCLeFTTk6bbar+/3/q818e FI5XlK40cckWoNuA99bdDd1v8FsyvPwXPDdpWldEZohm2xJHVSmQKjcT4kr1s4NTK+DxLN4nZ9n Vzpkj6PfmrVrHldt+k38AVlW5OSSMc4Ea9YjevBJ11Mj9wy3lOr6a2s37G2vba2RYA1YZWbQghJ L9FHLaeGEIXJLjxxHPUQj++a/RLAsQU8bqhGhj1V/q9hT7wYvOC+6YiOnVOcgB2lNVGQ+K8sZdi KLp6TKZaBAmrEbieS4BUTfLOz3JMZwooySz/g== X-Received: by 2002:a05:600c:34cd:b0:488:936a:6220 with SMTP id 5b1f17b1804b1-48fe61f2c03mr344635125e9.21.1779206925142; Tue, 19 May 2026 09:08:45 -0700 (PDT) Received: from iku.Home ([2a06:5906:61b:2d00:3f5e:825d:a98f:fd29]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48fe5ab527asm372645305e9.11.2026.05.19.09.08.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 May 2026 09:08:44 -0700 (PDT) From: Prabhakar X-Google-Original-From: Prabhakar To: Biju Das , Laurent Pinchart , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Philipp Zabel , Geert Uytterhoeven , Magnus Damm Cc: dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Prabhakar , Fabrizio Castro , Lad Prabhakar Subject: [PATCH v4 2/5] dt-bindings: display: renesas, rzg2l-du: Add RZ/T2H and RZ/N2H support Date: Tue, 19 May 2026 17:08:22 +0100 Message-ID: <20260519160825.4082566-3-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260519160825.4082566-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20260519160825.4082566-1-prabhakar.mahadev-lad.rj@bp.renesas.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Lad Prabhakar Document the Display Unit (DU) support for the RZ/T2H and RZ/N2H SoCs. The DU block on RZ/T2H is functionally equivalent to the RZ/G2UL DU and supports the DPI interface, but includes SoC-specific register differences and has no reset control. Add a dedicated compatible string to represent this variant and update the allOf constraints accordingly. As the DU implementation on RZ/N2H matches RZ/T2H, describe it using an RZ/N2H specific compatible string with the RZ/T2H compatible as fallback. Signed-off-by: Lad Prabhakar Reviewed-by: Rob Herring (Arm) --- v3->v4: - Added RB tag from Rob. v2->v3: - No change v1->v2: - Dropped the "port" property in favor of "ports" with a single port@0 child, to align with the existing RZ/G2L bindings and simplify the device tree structure. - Updated the commit message to reflect the change from "port" to "ports". - Dropped RB tag from Rob due to above changes. --- .../bindings/display/renesas,rzg2l-du.yaml | 20 +++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml index 5add3b832eab..7c84a9ecc7a7 100644 --- a/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml +++ b/Documentation/devicetree/bindings/display/renesas,rzg2l-du.yaml @@ -21,6 +21,7 @@ properties: - renesas,r9a07g043u-du # RZ/G2UL - renesas,r9a07g044-du # RZ/G2{L,LC} - renesas,r9a09g057-du # RZ/V2H(P) + - renesas,r9a09g077-du # RZ/T2H - items: - enum: - renesas,r9a07g054-du # RZ/V2L @@ -28,6 +29,9 @@ properties: - items: - const: renesas,r9a09g056-du # RZ/V2N - const: renesas,r9a09g057-du # RZ/V2H(P) fallback + - items: + - const: renesas,r9a09g087-du # RZ/N2H + - const: renesas,r9a09g077-du # RZ/T2H fallback reg: maxItems: 1 @@ -83,7 +87,6 @@ required: - interrupts - clocks - clock-names - - resets - power-domains - ports - renesas,vsps @@ -95,7 +98,9 @@ allOf: properties: compatible: contains: - const: renesas,r9a07g043u-du + enum: + - renesas,r9a07g043u-du + - renesas,r9a09g077-du then: properties: ports: @@ -138,6 +143,17 @@ allOf: required: - port@0 + - if: + properties: + compatible: + contains: + const: renesas,r9a09g077-du + then: + properties: + resets: false + else: + required: + - resets examples: # RZ/G2L DU -- 2.54.0