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Mon, 2 Mar 2026 11:42:49 +0100 (CET) From: Alexander Stein To: Frank Li , Sascha Hauer , Nora Schiffer Cc: 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, Nora Schiffer Subject: Re: [PATCH v2] arm64: dts: freescale: imx8mp-tqma8mpql-mba8mp-ras314: fix UART1 RTS/CTS muxing Date: Mon, 02 Mar 2026 11:42:49 +0100 Message-ID: <5083150.31r3eYUQgx@steina-w> Organization: TQ-Systems GmbH In-Reply-To: <20260302084548.6471-1-nora.schiffer@ew.tq-group.com> References: <20260302084548.6471-1-nora.schiffer@ew.tq-group.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="iso-8859-1" X-cloud-security-sender:alexander.stein@ew.tq-group.com X-cloud-security-recipient:linux-kernel@vger.kernel.org X-cloud-security-crypt: load encryption module X-cloud-security-Mailarchiv: E-Mail archived for: alexander.stein@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-relay91-hz1.antispameurope.com with 4fPb9l44JYzMpHt X-cloud-security-connect: he-nlb01-hz1.hornetsecurity.com[94.100.132.6], TLS=1, IP=94.100.132.6 X-cloud-security:scantime:1.592 DKIM-Signature: a=rsa-sha256; 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M=E4rz 2026, 09:45:48 CET schrieb Nora Schiffer: > 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. Switching the RTS and CTS signals > is fine for this board, as UART1 is routed to a pin header. Existing > functionality is unaffected, as RTS/CTS could never have worked with > the incorrect pinmux. >=20 > Fixes: ddabb3ce3f90 ("arm64: dts: freescale: add TQMa8MPQL on MBa8MP-RAS3= 14") > Signed-off-by: Nora Schiffer Reviewed-by: Alexander Stein > --- >=20 > v2: updated commit message based on suggestion by Frank Li >=20 >=20 > .../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-ras314= =2Edts 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 { >=20 =2D-=20 TQ-Systems GmbH | M=FChlstra=DFe 2, Gut Delling | 82229 Seefeld, Germany Amtsgericht M=FCnchen, HRB 105018 Gesch=E4ftsf=FChrer: Detlef Schneider, R=FCdiger Stahl, Stefan Schneider http://www.tq-group.com/