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 07AF7FC5913 for ; Thu, 26 Feb 2026 09:24:05 +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:MIME-Version: Content-Transfer-Encoding:Content-Type:References:In-Reply-To:Date:Cc:To:From :Subject:Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=pZA7AsIzdwCY7ab6l8jLMqVVu0K3dmUt9FW8oclhVyw=; b=essu6nb/Tvmw41BjOIBvUkKrD5 BpIrWRv6a3OjLZX/n/bRX9am0I/OMAlvtus0w1bAZeOi8XP/xn6XKbJJse5wuvQoaF/S2BotXPBvX 14xhDiFtThGc5aM3KqmOtdsBMi0nxjdv3Bq4RCJmtYUG1l4yz0WomLt8n8/ueTtMAF+QIHijF1vzP Pet1YA5ifSrUGY5gdhnYsWkoHAs+1Dd5/5nt4sHV/NArXtNvu8VsnnlT4eKKjWtoH0R1TrNOG0r7w JybVWzYtzjrJJMeNOutm+7D9q8GDfQnx8+GyUizIFguCGAy6hBjjXn0qTi8wfwMuAqBCf/t34JTUa CzxlazpA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vvX73-00000005i7W-1HFO; Thu, 26 Feb 2026 08:52:49 +0000 Received: from mx-relay60-hz1.antispameurope.com ([94.100.133.230]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vvX6w-00000005i6Z-1SOi for linux-arm-kernel@lists.infradead.org; Thu, 26 Feb 2026 08:52:48 +0000 ARC-Authentication-Results: i=1; mx-gate60-hz1.hornetsecurity.com 1; spf=pass reason=mailfrom (ip=94.100.132.6, headerfrom=ew.tq-group.com) smtp.mailfrom=ew.tq-group.com smtp.helo=smtp-out02-hz1.hornetsecurity.com; dmarc=pass header.from=ew.tq-group.com orig.disposition=pass ARC-Message-Signature: a=rsa-sha256; bh=pZA7AsIzdwCY7ab6l8jLMqVVu0K3dmUt9FW8oclhVyw=; c=relaxed/relaxed; d=hornetsecurity.com; h=from:to:date:subject:mime-version:; i=1; s=hse1; t=1772095954; b=B6npiQJQz6VdCVGu+yfPSUYCSvyJSg4A0noHsSDO4GLoQAsaVwk/xViNi7m+N7C7XQm72+/J nPQzE7Vvt0t71RFoeBKqUMHqJOll1ELN2/ex3RtvvxuHGrWixTVHo3oXV9cxdUzbeaDMBVKJ5jw N1pmu6BxbEe52PUXbUmIXIq8wzXaJPZy2zZ1hDUUQBOxOxBXCLJvBJdjmCnO5Wx8LJ6ObOgSbDx 8EZlqxCwHBOTLOoU8VuUCH8+Zk/FjefL+pDmCPOR/15OncvOT8QNX5a6coejR2y8VCJbevK4r29 2Uh+Xtfna2fcCFjtEUxpLCSJJoxfa2AnlFjciIoeyEe5Q== ARC-Seal: a=rsa-sha256; cv=none; d=hornetsecurity.com; i=1; s=hse1; t=1772095954; b=CitlVqTHgqIoIQh5XeEGRu48uxnCHMiFERymqB8u4pNtIz97tEqsgKun1RnZyE9Oy4Oc9ysU gYKa1Itrz0Nmp1lIZZ5knrXaER8P1wH0OqJOnWBkYOLJLyvMse/f2ju3QEzojLelfDVniet4cJY fpm1nY2nT9suaIhYIH9XD7x0VUigb21tgkDymhjQKfu7+HBijLd8lE8AJ617/N4bmDxGVUCV3fb V5uBrv3SW1LSBqRf1WAXqoSaGOgmXHKGT0LCRdWbTwIFkW2cUvSqPke8hkNzEFqWRQvQQ8QAMJA 9mWjRCyqGuTgftpxCLroBX2ZevK2r3vtGU0zbt9zkf1tg== Received: from he-nlb01-hz1.hornetsecurity.com ([94.100.132.6]) by mx-relay60-hz1.antispameurope.com; Thu, 26 Feb 2026 09:52:34 +0100 Received: from [192.168.153.128] (host-82-135-125-110.customer.m-online.net [82.135.125.110]) (Authenticated sender: nora.schiffer@ew.tq-group.com) by smtp-out02-hz1.hornetsecurity.com (Postfix) with ESMTPSA id 419F65A0F0A; Thu, 26 Feb 2026 09:52:23 +0100 (CET) Message-ID: Subject: Re: [PATCH] arm64: dts: freescale: imx8mp-tqma8mpql-mba8mp-ras314: fix UART1 RTS/CTS muxing From: Nora Schiffer To: Frank Li Cc: Sascha Hauer , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Pengutronix Kernel Team , Fabio Estevam , linux-arm-kernel@lists.infradead.org, imx@lists.linux.dev, linux@ew.tq-group.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Date: Thu, 26 Feb 2026 09:52:22 +0100 In-Reply-To: References: <20260225083419.5639-1-nora.schiffer@ew.tq-group.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.52.3-0ubuntu1.1 MIME-Version: 1.0 X-cloud-security-sender: nora.schiffer@ew.tq-group.com X-cloud-security-recipient: linux-arm-kernel@lists.infradead.org X-cloud-security-crypt: load encryption module X-cloud-security-Mailarchiv: E-Mail archived for: nora.schiffer@ew.tq-group.com X-cloud-security-Mailarchivtype: outbound X-cloud-security-Virusscan: CLEAN X-cloud-security-disclaimer: This E-Mail was scanned by E-Mailservice on mx-relay60-hz1.antispameurope.com with 4fM4w80B2Yz28yMP X-cloud-security-connect: he-nlb01-hz1.hornetsecurity.com[94.100.132.6], TLS=1, IP=94.100.132.6 X-cloud-security-Digest: daeffe5ef58851175bcfb2fcf892fa20 X-cloud-security: scantime:1.389 DKIM-Signature: a=rsa-sha256; bh=pZA7AsIzdwCY7ab6l8jLMqVVu0K3dmUt9FW8oclhVyw=; c=relaxed/relaxed; d=ew.tq-group.com; h=content-type:mime-version:subject:from:to:message-id:date; s=hse1; t=1772095953; v=1; b=DurOm/+Er4jU2ko1MCfUiv17l+yDjaa2BvcerwlCzQRcywk+eNxpXUOAve8VTzBF5LNqUTXv Io8O/azKNVzY/86vm9Ob7O2M8pVa4S06SChkXyXKb7J0ps9KI/8sH1KOUMEKSL66Pbvstv5xwwS TIuJJpV2OLOmaQ3k8bTw6TNArFE/Lzo1Vg+re3eSyDTkmczbLRRISfFEzJJ1nAMWa3BcC6sQd+h WlITKxCg405cBx3IWABZH0WSe+6a5+AZYTclV2FbuDkFhX6zigVmPOlKoxRw+ds1C9Bd+rfiiEB IytgMV6Sq8EMZmT022hgGWi+F/8eDwQ97e+2pMa9jp8+A== X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260226_005242_647412_1187896B X-CRM114-Status: GOOD ( 20.19 ) 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 On Wed, 2026-02-25 at 10:41 -0500, Frank Li wrote: > On Wed, Feb 25, 2026 at 09:34:18AM +0100, Nora Schiffer wrote: > > The pinmuxing for UART1 was mixing DCE and DTE modes, which cannot work= . > > Consistently use DCE mode. > >=20 > > This switches the RTS and CTS pins, which is fine for this board, as > > UART1 is routed to a pin header. >=20 > Is below commit better? >=20 > UART1 operates in DCE mode, but the RTS/CTS pins were incorrectly > configured using the DTE pinmux setting. >=20 > Correct the pinmux to match DCE mode, which does not affect existing > functionality because UART1 signals are routed to a pin header. Hi Frank, your commit message sounds better, do you want me to send a v2? Best, Nora >=20 > Frank > >=20 > > Fixes: ddabb3ce3f90 ("arm64: dts: freescale: add TQMa8MPQL on MBa8MP-RA= S314") > > Signed-off-by: Nora Schiffer > > --- > > .../boot/dts/freescale/imx8mp-tqma8mpql-mba8mp-ras314.dts | 4 ++-- > > 1 file changed, 2 insertions(+), 2 deletions(-) > >=20 > > diff --git a/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mp-ras3= 14.dts b/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mp-ras314.dts > > index b7f69c92b7748..1665a5030b993 100644 > > --- a/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mp-ras314.dts > > +++ b/arch/arm64/boot/dts/freescale/imx8mp-tqma8mpql-mba8mp-ras314.dts > > @@ -848,8 +848,8 @@ pinctrl_tlv320aic3x04: tlv320aic3x04grp { > > pinctrl_uart1: uart1grp { > > fsl,pins =3D , > > , > > - , > > - ; > > + , > > + ; > > }; > >=20 > > pinctrl_uart1_gpio: uart1gpiogrp { > > -- > > TQ-Systems GmbH | M=C3=BChlstra=C3=9Fe 2, Gut Delling | 82229 Seefeld, = Germany > > Amtsgericht M=C3=BCnchen, HRB 105018 > > Gesch=C3=A4ftsf=C3=BChrer: Detlef Schneider, R=C3=BCdiger Stahl, Stefan= Schneider > > https://www.tq-group.com/ > >=20 --=20 TQ-Systems GmbH | M=C3=BChlstra=C3=9Fe 2, Gut Delling | 82229 Seefeld, Germ= any Amtsgericht M=C3=BCnchen, HRB 105018 Gesch=C3=A4ftsf=C3=BChrer: Detlef Schneider, R=C3=BCdiger Stahl, Stefan Sch= neider https://www.tq-group.com/