From patchwork Mon Jun 8 14:20:24 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dario Binacchi X-Patchwork-Id: 4705 Return-Path: X-Original-To: linux-amarula@patchwork.amarulasolutions.com Delivered-To: linux-amarula@patchwork.amarulasolutions.com Received: from mail-ej1-f69.google.com (mail-ej1-f69.google.com [209.85.218.69]) by ganimede.amarulasolutions.com (Postfix) with ESMTPS id D67EE3F992 for ; Mon, 8 Jun 2026 16:22:41 +0200 (CEST) Received: by mail-ej1-f69.google.com with SMTP id a640c23a62f3a-bed16fc8424sf417713866b.0 for ; Mon, 08 Jun 2026 07:22:41 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1780928561; cv=pass; d=google.com; s=arc-20240605; b=DPwCMVpVG7yPA9Kre1nn+5M5epNp/g49GtQLxohnmQi2oykn42U58CK1JKIUWOB4k6 OFpmvXpQus6/yQqbZH9e6sHtOn0yAmmVcTBblP7c847R59XlEoTgN3OkQfSK/SMtyWVI bxfoyzAG8rawWFJbaQIks4G+opIklGlCg5xKdaxXSv3VsjZU6hqg5Hn+Cft/vdb8TMky J7VtBewYZ7zPWVSxSaYCrcEBixcXc/9k+jCk4sfsqsOoyW0Z4LaetsxjX3EbL4EjKkv4 JYICqPipCc8+RHdcNDHEpX43rJ51Ba3x5ZrYDatvQp6vFZLRrIBdTTjq6BwddtbEA9nR hx8A== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20240605; h=list-unsubscribe:list-archive:list-help:list-post:list-id :mailing-list:precedence:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature; bh=iWkDrLu3Y2mxtkD7RnrwpmtN1vX7l8TT5R5g9svmWlM=; fh=e/V4WlETC7a9AaG9kysk2wZpQ98ZX0ZIaMDQvrUXYjE=; b=Aa7eJxSieim/oXieiQh9iQXYfGhed5et3LvpzRXeRX4gui/yyHtAO4szF718j0q4Kl eDk5thOVSJ9BikozJJKssBASYSMDPqgr3yiBqYUQ+0RlFT6Fs+j84V1auWtFjVKc67OA K/RF5ktdhNCZRCYQuOjVaBkhRWsCZueYWGLDo7LwQhZMR8QMCR6vayCgkOcnTSB3bRoz mz5BGYdlRzfjnHfan4p5RnpYMldIFK2HGJTDDODqQzA6qOAYHBaHhpDX/7kpx3qsTM6t qEK6CqEBwFCDeZ2tOXM9ehR/9uvSWZMJSzdkb5smS66Kz2RtwdZSTMEiAxg0XW/Elp+x q1cQ==; darn=patchwork.amarulasolutions.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b="LUZt/KaP"; spf=pass (google.com: domain of dario.binacchi@amarulasolutions.com designates 209.85.220.41 as permitted sender) smtp.mailfrom=dario.binacchi@amarulasolutions.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=amarulasolutions.com; dara=neutral header.i=@amarulasolutions.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1780928561; x=1781533361; darn=patchwork.amarulasolutions.com; h=list-unsubscribe:list-archive:list-help:list-post:list-id :mailing-list:precedence:x-original-authentication-results :x-original-sender:mime-version:references:in-reply-to:message-id :date:subject:cc:to:from:from:to:cc:subject:date:message-id:reply-to; bh=iWkDrLu3Y2mxtkD7RnrwpmtN1vX7l8TT5R5g9svmWlM=; b=BsIc1XdrBr46HJhVda2v1VbHzSe8+CHHF/HSDQqfISz65GdRH/65d2Ctsp5Om3W04x xtKcVYy9Ukb96Mlk+0vp0gCa+gNZvjjHf9ilLMfAeybTtkzO5K2qbY17msYDsUlNR2AJ vlSC/pvHJhdNOe3GpBCZ+qiYWuxFI3MzdYK1c= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1780928561; x=1781533361; h=list-unsubscribe:list-archive:list-help:list-post :x-spam-checked-in-group:list-id:mailing-list:precedence :x-original-authentication-results:x-original-sender:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from:x-gm-gg :x-beenthere:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=iWkDrLu3Y2mxtkD7RnrwpmtN1vX7l8TT5R5g9svmWlM=; b=QAFv45tGNncmibPzH2y9+JnY03FEQOsybhE5sx66CP4wCOH64L+/I2feEfek/S9nW2 t+wQI+PiMDj/c3y34drsLar1qBzmEmPEou+XcptngsWpNwWLdT55i40SxMpO3de/YJRn r6wIGgoGEWHeacl1JgIHCnkteXgY5/R8j1jpsg204e+sIbnZC8zcSPWYsaEb/YugxSub X2YNo1TJVJdHch31It2QSCaoGVwucys24iOpV488W6WIn6FtsbBekrCPjthiwF/ry9Co iRNNpKDCqB2WY0RaNFekdS+YFGN73nZjlcKwatUnODX/WXC84NNWhCpqHIwF2wtwOlA6 cATA== X-Forwarded-Encrypted: i=2; AFNElJ+LSAEB4rR6wcE26gf8jgHbXuImUWvT3CmJoRpqM/ThYrLNun11xhthipauy/ymWWuWgY+GJ+MZeMUKl6ik@patchwork.amarulasolutions.com X-Gm-Message-State: AOJu0YwA7AjaqrqjA7LvfcxY+mDndZztn8J/kyMYRpnPfxnols3HICRx fQr7oOvGhiYI9FZOHVovII95aSoLy3cXDwpkqtWU7fEyIiGlvYdMD5/zRPgsLlY4vfXa+A== X-Received: by 2002:a17:907:948e:b0:bf1:a59e:653f with SMTP id a640c23a62f3a-bf371e4379dmr762268666b.28.1780928561533; Mon, 08 Jun 2026 07:22:41 -0700 (PDT) X-BeenThere: linux-amarula@amarulasolutions.com; h="AX0PUUfxOKVc1Xri0QcQfBS26Pa4dgnMazg6RP0BaDlFRdvhkw==" Received: by 2002:a05:6402:5405:b0:68a:3c5:43ad with SMTP id 4fb4d7f45d1cf-68f079e7ccbls4896213a12.0.-pod-prod-01-eu; Mon, 08 Jun 2026 07:22:40 -0700 (PDT) X-Received: by 2002:a17:907:cf8c:b0:bab:cab:c372 with SMTP id a640c23a62f3a-bf370b5fad3mr712456766b.22.1780928559718; Mon, 08 Jun 2026 07:22:39 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1780928559; cv=none; d=google.com; s=arc-20240605; b=K5iJMMRxzt9Tsm4rmArXny+11r/uQkHnV4MF8ia1jIShxJyzOwreN++2AFt5qmFTrG 3fZAD+FdP4PcP8WubGyXOSTt/7j0juoWBG5BgMd+8xgkPNtD2EU4LzhYxKBlYBymidpP EfPcA+TDYQ4oMs91jGKz125k3touLV4/CxFJyA8+6RjXHw5UW4lzsToYcsxlNDJRZyEj oVo8uWa/zN7cqlTuHK4WKChOJhFE5qcVeIjLxJADY9JWy6THrixHaH7pSz26PkaRPRf9 eiHzl4C7LYWcamV8qcvH6upKEFUCcSEnR3oUljOt2aLeJ9U1j4Y0LFdmJhnZcxg1tMQ8 cnow== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20240605; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature; bh=jlYmcGocUtKVOJ3lCSjwzgCdhzYGeg/sEXkvnvDcqs4=; fh=KLjyWajN4ygE6W4AxC3NsR1dD7rO5ylDUmZoAe24rO4=; b=dqrB9oBybyiQnfzLfNZiFJFF0EkOnbe6r/LxgPLwyxQCwGDZIolmutZlcSt6ti0Ock gB4RO3mY5hqVA3YwNoOkmTK8bJOOXoLWDBSH0ODtSAOLT5ufLEmP4HfQ6cQaTlSltnNe 9cyskbNeVRzWuw36hhJRUpPL6aclkvv0iF2iVEYtezhCfEsvlSu1juzEt6hUmUqCeIB3 rCDEPtc+ZkxkyDVaFuNAsFCEvyZVkxPoX5O+tAPJvL8zP1D1m+HVrAId6BNMIBZOYWIM oho7oI24ZbiiVRUOHkcKE+Ozj4LcbS3IMPR79yoqiVLZHlrF8d8rx2iqxOa2Xvu/C8PB +4Hw==; dara=google.com ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b="LUZt/KaP"; spf=pass (google.com: domain of dario.binacchi@amarulasolutions.com designates 209.85.220.41 as permitted sender) smtp.mailfrom=dario.binacchi@amarulasolutions.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=amarulasolutions.com; dara=neutral header.i=@amarulasolutions.com Received: from mail-sor-f41.google.com (mail-sor-f41.google.com. [209.85.220.41]) by mx.google.com with SMTPS id a640c23a62f3a-bf051c83c7csor446470166b.8.2026.06.08.07.22.39 for (Google Transport Security); Mon, 08 Jun 2026 07:22:39 -0700 (PDT) Received-SPF: pass (google.com: domain of dario.binacchi@amarulasolutions.com designates 209.85.220.41 as permitted sender) client-ip=209.85.220.41; X-Gm-Gg: Acq92OEBxc5CjCFrqt6gNhHggVokkUtTXRYFiCWp5URdoolbTFe2LzVGWiFYDqcql/i 4sUK4B7xGSBZkRzgOamg1NoRPeWUmhbkYYbFLoSxp4GrhR6lfio9qUGg6WpySiMldGYhIMZmEfv 2UyfD/RB/fJLAGvbaWC8Rb+xE32nenlXK6Rvd7QCRqSeiyABQvcMd83Z7NMhwqb22946dcqwzEX W3WsgnBVRTl0qCbZbraU1ZiiZKKvMkUL1K/SmMPg8bx2oCiuSiA5eH/tlF9L2Md6ueYEWA23NZm hvXhxM3FogNurli49N8+PHoFxS28G7SiSw6vmJ5juP575PqWxpPXmw5lFQC2Ti8NpL9FtBDL/Ia zkpzASoSMi2zrLv+rMqvSb5Mw8oAZIsD10qZtSSHApulkuHh3dc4Z5S7uvNsXde9dd0rrKy4J4O S9Xh3PFn7nSOk4HZvlGeITGfEO9M9/nsEhX8zQbhHJ4curgEbBPgJ7UB844mCocAUk60ORNrNpo bpoiE4ykuu7WCJ1EOd9wmTh12wcZkxVNICYDrtD5Th7rJHI0d8xJ24M8GA= X-Received: by 2002:a17:907:9812:b0:beb:2665:f37c with SMTP id a640c23a62f3a-bf372f20f8bmr632395866b.46.1780928559123; Mon, 08 Jun 2026 07:22:39 -0700 (PDT) Received: from dario-ThinkPad-P14s-Gen-5.amarulasolutions.com ([2.196.42.139]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-bf055307a35sm881847066b.52.2026.06.08.07.22.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Jun 2026 07:22:38 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: linux-amarula@amarulasolutions.com, domenico.acri@engicam.com, michael@amarulasolutions.com, francesco.utel@engicam.com, Dario Binacchi , Alexandre Torgue , Conor Dooley , Krzysztof Kozlowski , Maxime Coquelin , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Subject: [PATCH v5 07/16] arm64: dts: st: add ltdc pins for stm32mp25 Date: Mon, 8 Jun 2026 16:20:24 +0200 Message-ID: <20260608142221.952245-8-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260608142221.952245-1-dario.binacchi@amarulasolutions.com> References: <20260608142221.952245-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 X-Original-Sender: dario.binacchi@amarulasolutions.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b="LUZt/KaP"; spf=pass (google.com: domain of dario.binacchi@amarulasolutions.com designates 209.85.220.41 as permitted sender) smtp.mailfrom=dario.binacchi@amarulasolutions.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=amarulasolutions.com; dara=neutral header.i=@amarulasolutions.com Content-Type: text/plain; charset="UTF-8" Precedence: list Mailing-list: list linux-amarula@amarulasolutions.com; contact linux-amarula+owners@amarulasolutions.com List-ID: X-Spam-Checked-In-Group: linux-amarula@amarulasolutions.com X-Google-Group-Id: 476853432473 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , Add the LTDC pins used on MicroGEA-STM32MP257-RMM board. Signed-off-by: Dario Binacchi --- Changes in v5: - Increase slew-rate to <1> to support the 27 MHz pixel clock and prevent timing violations. Suggested by Sashiko arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi | 71 +++++++++++++++++++ 1 file changed, 71 insertions(+) diff --git a/arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi b/arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi index db485b9ed904..50f454630cf2 100644 --- a/arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi +++ b/arch/arm64/boot/dts/st/stm32mp25-pinctrl.dtsi @@ -260,6 +260,77 @@ pins { }; }; + /omit-if-no-ref/ + ltdc_pins_a: ltdc-0 { + pins { + pinmux = , /* LCD_CLK */ + , /* LCD_HSYNC */ + , /* LCD_VSYNC */ + , /* LCD_DE */ + , /* LCD_R0 */ + , /* LCD_R1 */ + , /* LCD_R2 */ + , /* LCD_R3 */ + , /* LCD_R4 */ + , /* LCD_R5 */ + , /* LCD_R6 */ + , /* LCD_R7 */ + , /* LCD_G0 */ + , /* LCD_G1 */ + , /* LCD_G2 */ + , /* LCD_G3 */ + , /* LCD_G4 */ + , /* LCD_G5 */ + , /* LCD_G6 */ + , /* LCD_G7 */ + , /* LCD_B0 */ + , /* LCD_B1 */ + , /* LCD_B2 */ + , /* LCD_B3 */ + , /* LCD_B4 */ + , /* LCD_B5 */ + , /* LCD_B6 */ + ; /* LCD_B7 */ + bias-disable; + drive-push-pull; + slew-rate = <1>; + }; + }; + + /omit-if-no-ref/ + ltdc_sleep_pins_a: ltdc-sleep-0 { + pins { + pinmux = , /* LCD_CLK */ + , /* LCD_HSYNC */ + , /* LCD_VSYNC */ + , /* LCD_DE */ + , /* LCD_R0 */ + , /* LCD_R1 */ + , /* LCD_R2 */ + , /* LCD_R3 */ + , /* LCD_R4 */ + , /* LCD_R5 */ + , /* LCD_R6 */ + , /* LCD_R7 */ + , /* LCD_G0 */ + , /* LCD_G1 */ + , /* LCD_G2 */ + , /* LCD_G3 */ + , /* LCD_G4 */ + , /* LCD_G5 */ + , /* LCD_G6 */ + , /* LCD_G7 */ + , /* LCD_B0 */ + , /* LCD_B1 */ + , /* LCD_B2 */ + , /* LCD_B3 */ + , /* LCD_B4 */ + , /* LCD_B5 */ + , /* LCD_B6 */ + ; /* LCD_B7 */ + }; + }; + /omit-if-no-ref/ ospi_port1_clk_pins_a: ospi-port1-clk-0 { pins {