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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 3654BC55190 for ; Fri, 20 Feb 2026 10:36:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=9nxwdodsmrJqTCjHXzmc8/KE3pVW+pHuR2vrlazu10o=; b=Bs5N6CV5eEvUVd1ufe5Zlbvslg mROu30BydQpzpgSdvXfBCIDrj4NjSXZiyF8Jd+vplXxy7baGLeIRilnC6rdwDHvGaxgeD3veOS4lM afxh4Axi7Pc1+aSE0gQjcyv4rqigsn7/uy05rHSI9qaNzxNTohG4E4Xtf0kIeXLFQAfP5XjQZQcTy DI2UViEAjQGATagFHvTgryt1o56OOzaVM0oME/1dqPaTCxfQYVpoNNsmBqqlkooz/s9plt1ONONA1 qI8E3D56mTb1snM6vYHOmXOQo7QRpaMfbOr89fuFQrIQBAykqwso9tNzlKiKDsgWQ8G1HFCI7xDVK TLfrrcng==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vtNsR-0000000E5hx-0HM1; Fri, 20 Feb 2026 10:36:51 +0000 Received: from mail.fris.de ([116.203.77.234] helo=mail2.fris.de) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vtNsN-0000000E5cl-0KIO for linux-arm-kernel@lists.infradead.org; Fri, 20 Feb 2026 10:36:49 +0000 From: Frieder Schrempf DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fris.de; s=mail; t=1771583803; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=9nxwdodsmrJqTCjHXzmc8/KE3pVW+pHuR2vrlazu10o=; b=rv53oPStcRBBnD19zX4ntmMyBkvFbDD/j16JjHt09rFTQ2GoDktQAhkTYC6HsDFNiirVyj 2TRkJ42Ohs4UG82UwaZokthgNDpqJdDBmvkx5xLDTPT6JxQn0Bgu3AfanvyW/EtnPwOqM+ /ify3VhcGxkyUbKUA8vDLKPa0RDiLxEgu666h2XNSA0NWwSc+AZZ7M+Vi7DGXAM7QVoujL NE/kt9o/gtA0a+lQchbwfsaO32AdXMjlzTMc5mTmAV8lXGOS6weAwr2QRH+pn4HnmQU5G6 DkEtnQKGEKUM8wj5pIrrH45l1Jt79KI7jDpSa/dBicRETMzAYJ2Mx7cwERfh5A== To: Conor Dooley , devicetree@vger.kernel.org, Frank Li , Frieder Schrempf , imx@lists.linux.dev, Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Rob Herring , Sascha Hauer , Shawn Guo Cc: Fabio Estevam , Pengutronix Kernel Team Subject: [PATCH v2 1/4] arm64: dts: imx8mp-kontron: Fix touch reset configuration on DL devices Date: Fri, 20 Feb 2026 11:36:16 +0100 Message-ID: <20260220103636.9697-2-frieder@fris.de> In-Reply-To: <20260220103636.9697-1-frieder@fris.de> References: <20260220103636.9697-1-frieder@fris.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260220_023647_474117_A9685942 X-CRM114-Status: UNSURE ( 9.56 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Frieder Schrempf The reset signal needs a pullup, but there is no hardware pullup. As a workaround, enable the internal pullup to fix the touchscreen. As this deviates from the default generic GPIO settings in the OSM devicetree, add a new node for the touch pinctrl and redefine the generic gpio1 pinctrl. Fixes: 946ab10e3f40f ("arm64: dts: Add support for Kontron OSM-S i.MX8MP SoM and BL carrier board") Signed-off-by: Frieder Schrempf Reviewed-by: Frank Li --- .../boot/dts/freescale/imx8mp-kontron-dl.dtso | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-kontron-dl.dtso b/arch/arm64/boot/dts/freescale/imx8mp-kontron-dl.dtso index a3cba41d2b531..7131e9a499ae1 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-kontron-dl.dtso +++ b/arch/arm64/boot/dts/freescale/imx8mp-kontron-dl.dtso @@ -77,6 +77,8 @@ &i2c1 { touchscreen@5d { compatible = "goodix,gt928"; reg = <0x5d>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_touch>; interrupt-parent = <&gpio1>; interrupts = <6 8>; irq-gpios = <&gpio1 6 0>; @@ -98,6 +100,16 @@ &lvds_bridge { status = "okay"; }; +/* redefine to remove touch controller GPIOs */ +&pinctrl_gpio1 { + fsl,pins = < + MX8MP_IOMUXC_GPIO1_IO00__GPIO1_IO00 0x19 /* GPIO_A_0 */ + MX8MP_IOMUXC_GPIO1_IO01__GPIO1_IO01 0x19 /* GPIO_A_1 */ + MX8MP_IOMUXC_GPIO1_IO05__GPIO1_IO05 0x19 /* GPIO_A_2 */ + MX8MP_IOMUXC_GPIO1_IO08__GPIO1_IO08 0x19 /* GPIO_A_5 */ + >; +}; + &pwm1 { status = "okay"; }; @@ -108,4 +120,11 @@ pinctrl_panel_stby: panelstbygrp { MX8MP_IOMUXC_SAI3_RXFS__GPIO4_IO28 0x19 >; }; + + pinctrl_touch: touchgrp { + fsl,pins = < + MX8MP_IOMUXC_GPIO1_IO06__GPIO1_IO06 0x19 + MX8MP_IOMUXC_GPIO1_IO07__GPIO1_IO07 0x150 + >; + }; }; -- 2.52.0