From nobody Sat Feb 7 09:30:19 2026 Received: from mail-pj1-f48.google.com (mail-pj1-f48.google.com [209.85.216.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E1D0F3559FB for ; Thu, 29 Jan 2026 02:29:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.48 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769653765; cv=none; b=iT31mL6S2FLcKMu1sTfRn/7cxRZu8htfXCxnsY5uQi1I2DfPOocO3+YyqrZRqHaU+UtqiH7zrtb5raTejSyFYl2nfpcgfcqzwHLpwlIqfM9iWia9XV2tAgqx3UhvV47GvK78keoOvQrpehFYMVN57BtR2QbgjU0uAgwt03910Yg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769653765; c=relaxed/simple; bh=Ux4yXdcrD7sWaWrJxWfS5yeD2Dtq6BEm/InYgyeESXM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=AHirV/KrtojyjpCc9zmL/dv9EmQmzbAubYXBEtGbpZ08LmQ8XXnlGpv70HUuJHtXX0hQerKoBfz+F9lPn2lE+gPlopqu3upkP5XmGKm7wpHGIFbllz7x1VXDXm/DD2BzJT6w5xjcTG92+E6AcPO3C6YyAGP37itGjwUZtMeGx80= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=lfIsZ1vn; arc=none smtp.client-ip=209.85.216.48 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="lfIsZ1vn" Received: by mail-pj1-f48.google.com with SMTP id 98e67ed59e1d1-35334ea1f98so181180a91.1 for ; Wed, 28 Jan 2026 18:29:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1769653763; x=1770258563; darn=vger.kernel.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=Jyw7q0/YQsMTgrYvASBDoKvdAbxjjEM7hz6Ka6xcckU=; b=lfIsZ1vnOLJCPEjEU9CqiAX/zuEyPGaYMj9rbunL605RupowduJ2T5sl7YerLcNjPp 93QR7Mun+IgFwXVid5HqWJiO66aWA3S+vT9GDGIalGiw4CW9ivrPLmwYJURrAUILCAj2 Y5zstfpSD5AQEyCwBcNyaq/mWEuNMRlputhF/KacwcLF0JbzXsK4hyE5N2rqkiQXKCoc UtS6gEynfVgl6hTdP63Ku3dzoB+amW+R0wghp1cOUHG+2sbGQg33r+zDe5RyWSOZxVdb 3PfyMyE9+gU4qLQbjhgZ+uhl1A2OEnXGz2D/vnAyTWnzKMBcvY7lliL9IZOSfetX29Va BUKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769653763; x=1770258563; 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=Jyw7q0/YQsMTgrYvASBDoKvdAbxjjEM7hz6Ka6xcckU=; b=duZCgm020GYHYspZB4UNF4MFfvSSCr74T/pY1jM20S/qFoCLDRwiY6qbE/DfZBz2iG lzxi81izh0uiRpEH+beQHyqHdUvOVHsFKtQ6h5R2A444Hx5i2KhLbmTSgdzpmjkIhnvb cLEzT18yipoDvDGNciWSUmuicOnFFgqHV741p23hkDsctCvft7pnPA5uxV1LKjAGHbDY 8Rf7BStIlfjEbC/lsSjoM7+29LR3cVz8UEMqsUpVQNIw+H3I1jGz3Y4M7IYUkdu4WJfv TlnOAzamRPrZrWS03pCayjWLHb++vLUbzZEcwEObq7qqHSO9Re4Myw3PClgvnf7005ed JHEA== X-Forwarded-Encrypted: i=1; AJvYcCVwBucrG2GxPvwvOEznfmYgxBE4yu7xqRL9zmJoKZfrqvUqAE+Ba7/nql2fy6+rHZLz4WPc2xO1xWePqAc=@vger.kernel.org X-Gm-Message-State: AOJu0Ywc9l+I9YWa8adxWTf21us36xORiv7lkK7RKNJgLbXZ/G2r2HrN nlsdNLcjkFJJUpBdgLnq7oPxUGqXBLls2yCmKN8PeAvR9DiofB6TQVBD X-Gm-Gg: AZuq6aLC92MIcI6BiIOKvOjVtgrWN1EF223NLVzRyygHqK4exE0dwGJOf6GLsgdIgim EGuVYXr2yc8HeUCMUZvg7MEPS+4etSy0IhemJ9NlARkbywBieS7BxZ+xXkpJ3u2ofdCnHG+GTtb eilsnI4hep+S7Ttw7NLI8/KTZ38DniFRAkKQtTVY1jdowu8YsLqo+RAUxee9usKpqgHzSCVXeI+ E+vJbFVwmYkbD8OjQ41yMrVMBGjXkd6rqiw71hfRSZRGlER5ZdSj6O7cjRXhmNxRSSeoYdGi2JM dqtUvm1rJld08UhljBKVDOY+xN/eRkqUSoII1UwthbHqtUMXZgij2M9bT0oDDU2/l/z4MYQP6Zl NXAwLt0hI/sOX3ZGxDypIWQXNUOQTCLobQ4DWGPnbIiQuVhmgVYPiLyNkKunW/ZKazjhSG2+60W oFkhRHSRRSxzD5lC7MtUdVI39FB/RyApIimN2/bPDazijpRe0uE5AWai8= X-Received: by 2002:a17:90b:1d48:b0:32e:a8b7:e9c with SMTP id 98e67ed59e1d1-353fed8ac13mr6667239a91.29.1769653763199; Wed, 28 Jan 2026 18:29:23 -0800 (PST) Received: from wig-Precision-3660.. (125-227-154-99.hinet-ip.hinet.net. [125.227.154.99]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3540f2f0283sm4380542a91.5.2026.01.28.18.29.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Jan 2026 18:29:22 -0800 (PST) From: Wig Cheng To: shawnguo@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org Cc: s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, zaq14760@gmail.com, Wig Cheng Subject: [PATCH v4 1/1] arm64: dts: freescale: add pixpaper display overlay for i.MX93 FRDM Date: Thu, 29 Jan 2026 10:29:10 +0800 Message-ID: <20260129022910.3942028-2-onlywig@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260129022910.3942028-1-onlywig@gmail.com> References: <20260129022910.3942028-1-onlywig@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add device tree overlay to support the MayQueen PixPaper e-paper display on the NXP i.MX93 FRDM board. The display is connected via LPSPI3 interface and uses GPIO pins for reset, busy and DC control. The overlay configures: - LPSPI3 pinmux for SPI communication (MOSI, MISO, CLK, CE0) - PixPaper display device with proper GPIO assignments - SPI frequency set to 5MHz for stable operation Enable Open-EP Community pixpaper-213-c support on NXP i.MX93. Signed-off-by: Wig Cheng Reviewed-by: Frank Li Reviewed-by: Peng Fan --- arch/arm64/boot/dts/freescale/Makefile | 4 ++ .../freescale/imx93-11x11-frdm-pixpaper.dtso | 50 +++++++++++++++++++ 2 files changed, 54 insertions(+) create mode 100644 arch/arm64/boot/dts/freescale/imx93-11x11-frdm-pixpaper= .dtso diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/f= reescale/Makefile index ce8f937c2315..c2727f8061e2 100644 --- a/arch/arm64/boot/dts/freescale/Makefile +++ b/arch/arm64/boot/dts/freescale/Makefile @@ -398,6 +398,10 @@ dtb-$(CONFIG_ARCH_MXC) +=3D imx93-9x9-qsb-i3c.dtb =20 dtb-$(CONFIG_ARCH_MXC) +=3D imx93-11x11-evk.dtb dtb-$(CONFIG_ARCH_MXC) +=3D imx93-11x11-frdm.dtb + +imx93-11x11-frdm-pixpaper-dtbs +=3D imx93-11x11-frdm.dtb imx93-11x11-frdm-= pixpaper.dtbo +dtb-$(CONFIG_ARCH_MXC) +=3D imx93-11x11-frdm-pixpaper.dtb + dtb-$(CONFIG_ARCH_MXC) +=3D imx93-14x14-evk.dtb dtb-$(CONFIG_ARCH_MXC) +=3D imx93-kontron-bl-osm-s.dtb dtb-$(CONFIG_ARCH_MXC) +=3D imx93-phyboard-nash.dtb diff --git a/arch/arm64/boot/dts/freescale/imx93-11x11-frdm-pixpaper.dtso b= /arch/arm64/boot/dts/freescale/imx93-11x11-frdm-pixpaper.dtso new file mode 100644 index 000000000000..5fee27a589b5 --- /dev/null +++ b/arch/arm64/boot/dts/freescale/imx93-11x11-frdm-pixpaper.dtso @@ -0,0 +1,50 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Device Tree Overlay for Mayqueen (Open-EP Community) pixpaper display + * support on NXP FRDM i.MX 93 Development Board + * + * Copyright (C) 2026 Wig Cheng + */ + +#include +#include "imx93-pinfunc.h" + +/dts-v1/; +/plugin/; + +&iomuxc { + pinctrl_lpspi3: lpspi3grp { + fsl,pins =3D < + MX93_PAD_GPIO_IO08__GPIO2_IO08 0x3fe /* SPI3 CE0 */ + MX93_PAD_GPIO_IO09__LPSPI3_SIN 0x3fe /* SPI3 MISO */ + MX93_PAD_GPIO_IO10__LPSPI3_SOUT 0x3fe /* SPI3 MOSI */ + MX93_PAD_GPIO_IO11__LPSPI3_SCK 0x3fe /* SPI3 CLK */ + >; + }; + + pinctrl_epd_ctrl: epdctrlgrp { + fsl,pins =3D < + MX93_PAD_GPIO_IO05__GPIO2_IO05 0x31e /* DC pin */ + MX93_PAD_GPIO_IO06__GPIO2_IO06 0x31e /* RESET pin */ + MX93_PAD_GPIO_IO26__GPIO2_IO26 0x31e /* BUSY pin */ + >; + }; +}; + +&lpspi3 { + #address-cells =3D <1>; + #size-cells =3D <0>; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&pinctrl_lpspi3>, <&pinctrl_epd_ctrl>; + cs-gpios =3D <&gpio2 8 GPIO_ACTIVE_LOW>; + status =3D "okay"; + + display@0 { + compatible =3D "mayqueen,pixpaper"; + reg =3D <0>; + spi-max-frequency =3D <5000000>; + reset-gpios =3D <&gpio2 6 GPIO_ACTIVE_HIGH>; + dc-gpios =3D <&gpio2 5 GPIO_ACTIVE_HIGH>; + busy-gpios =3D <&gpio2 26 GPIO_ACTIVE_HIGH>; + }; +}; --=20 2.43.0