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 DBC0ACD4F5B for ; Tue, 19 May 2026 16:08:46 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4464A10EDD0; Tue, 19 May 2026 16:08:46 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="Wy64NpnF"; dkim-atps=neutral Received: from mail-wm1-f52.google.com (mail-wm1-f52.google.com [209.85.128.52]) by gabe.freedesktop.org (Postfix) with ESMTPS id F2DCC10EDC9 for ; Tue, 19 May 2026 16:08:44 +0000 (UTC) Received: by mail-wm1-f52.google.com with SMTP id 5b1f17b1804b1-48d146705b4so41338925e9.3 for ; Tue, 19 May 2026 09:08:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1779206923; x=1779811723; darn=lists.freedesktop.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=wxS3QQnk5GN7d0xeWk5k+vZ7DrxTc2p5byKRqEc/Aw0=; b=Wy64NpnF7NpXvU3d/e1tmy3+zp5dzHv2jwbN4CLAAHf85h7t7fxL59uE+G0f/YDxk/ XfRgAYCPNGomKVcoKjAVLmsWoX8t096sWTgxbMiUxD/pAWkXmCJLNOA395EPYp0wLA6H wlNZpkZbIe1C3hQdxEoxOYL0rsDOHalwu41TmMReoRiVNQIPeX4v59X+XR8KYRpa1xSZ EwYiqooOIOl7hLQ4O8Glmvg/7ErwCa9x5W/gwV+z4/hCW+bpV4sK+eftqm9PQSEJzeV6 ViS/jBsgPzY5/yhxc/+XOmSuS6+HmLDFsDoJfcXZBbs0fZjvhwM7KnWpEP9gjAUJi4QM hqvg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779206923; x=1779811723; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=wxS3QQnk5GN7d0xeWk5k+vZ7DrxTc2p5byKRqEc/Aw0=; b=B7TVcRaLHDbm62izbADRqlrkuhUkq4KHlxJ31TBgJOcsGfLDblMxsRoALXF4tucs87 irKS2qSiWAv4PIx5AVkP6lIAX0YI3kSWbcqhEb2a9X7ua6OzUDjALMrz4HD/dtU9RfEz 2w+J9I+goS1Bz4oFQSihR/BpFwZpXszlWyv4+QWNa5hv/4prkYCG7Bx82VlmYQNedvPy Sp1Vm4MTk1k22GPrj7Aauybyr+0KvzjZbEKRPxfIhwqOzO1oHtfOMCie/MMIjQ2O/Skw JR+e3SOFqXrZFjc6KPewDFapbzNxpvO1cslHAe3BoT0/GnDpfJz2CLJ/UVseX1qEZuzP I/uw== X-Gm-Message-State: AOJu0Yzzm5F0agKuVShUnmKWtFMF0uPScfzpBvjol+IDo1GFP/OOCuRM 21rUDhyevO32VMzLcwlaqz3IJYlMjTPVL7R100/oQEZJgOj3wpc2jcFt X-Gm-Gg: Acq92OFQmje9D+nwHs8MF8smDtmyVAFA9MIfH0Woklr4jLQk8AY22dAAKBmjh9AJePG Tolsl62QcJl8nHiN4ysWmO+hJksAJwPAjqi8q59mdc5PNCJqnBB3eaAngGJ86Eqvnw2NsYfhT0w SM4NWoYDEnQOcD42/SnKiD06M/HqgAr4IbNqfm7j+jFSeK/rK2ADSt4SS6j2gzP6uM04nFPNuLq kxezJ0KbhSFo2IAK0vypw9ePjScqZEVKYGFI8yJtKb2wPVKEyO5LA21gku5auV7jAUi47PisKUl TKJgpL9p/iCwwX4UPEKIKMCbNHQcsdc2wX/KubbpXS7eXgLpP2d6L362Vvk5W2oHr4ANp1RlxXD ArsPA01a/A1JOeE4TwMgZBX5pAw8v2GiKE8HJymt2pYP0Z+OeTMwmGCYGxq9XCeDodnDRa+hyiU 7ObyPxybvzV3a/V0nYyTzsT/bp2/iCGN3ADlG00DTDs1fv7i30tSnEjTl6mB5W9UffZMZAYHD9u YLZdgKzUu7G6DkmXipZ9qAcgAe6ieOUUtOIc+kfforl6z91 X-Received: by 2002:a05:600c:491e:b0:48e:978f:c45a with SMTP id 5b1f17b1804b1-48fed455991mr192575895e9.19.1779206923119; Tue, 19 May 2026 09:08:43 -0700 (PDT) Received: from iku.Home ([2a06:5906:61b:2d00:3f5e:825d:a98f:fd29]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48fe5ab527asm372645305e9.11.2026.05.19.09.08.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 May 2026 09:08:42 -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 0/5] Add DU support for RZ/T2H and RZ/N2H SoCs Date: Tue, 19 May 2026 17:08:20 +0100 Message-ID: <20260519160825.4082566-1-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.54.0 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 Hi All, This series adds support for the Display Unit (DU) on the RZ/T2H and RZ/N2H (R9A09G087) SoCs. The DU on these platforms is functionally similar to the RZ/G2UL DU but includes some SoC specific differences such as a single output port and explicit DPI output enable control. The series includes the following changes: 1. Add device tree bindings for the RZ/T2H and RZ/N2H DU variants, including a new compatible string. 2. Make the DU reset control optional to allow probing on RZ/T2H where the DU does not have a reset line. 3. Move pixel clock validation logic to per-SoC constraints in rzg2l_du_device_info to accommodate different clock limits across SoCs. 4. Implement support for the RZ/T2H DU variant in the driver, including handling of the DPI output enable signal. Patches are rebased on next-20260519 and apply on drm-next. v3->v4: - Added Acked-by tag from Rob for patch #1 - Added Reviewed-by tag from Rob for patches #2 - Dropped per pad limits in patch #4 and added a check to return early if the output is not DPAD0, as the clock limits only apply to that output. - Updated commit message in patch #4 v2->v3: - Rebased on latest next-20260508. - Included Tommaso's patch to refuse port@1 for RZ/G2UL, which was previously in a separate series. - Moved clock limits from device_info to output_routing to allow per-output constraints. - Updated commit message for patch#4 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 storing info pointer in struct rzg2l_du_encoder as it's not needed. - Add Reviewed-by tags from Laurent for patches 2-4. - Rebase on latest next-20260507. Cheers, Prabhakar Lad Prabhakar (4): dt-bindings: display: renesas,rzg2l-du: Add RZ/T2H and RZ/N2H support drm: renesas: rz-du: Make DU reset control optional for RZ/T2H support drm: renesas: rz-du: Move mode_valid logic to per-SoC clock limits drm: renesas: rz-du: Add support for RZ/T2H SoC Tommaso Merciai (1): dt-bindings: display: renesas,rzg2l-du: Refuse port@1 for RZ/G2UL .../bindings/display/renesas,rzg2l-du.yaml | 21 +++++++++++++++++-- drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c | 9 ++++++-- drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.c | 20 +++++++++++++++++- drivers/gpu/drm/renesas/rz-du/rzg2l_du_drv.h | 14 +++++++++++++ .../gpu/drm/renesas/rz-du/rzg2l_du_encoder.c | 9 +++++++- 5 files changed, 67 insertions(+), 6 deletions(-) -- 2.54.0