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Thu, 4 Dec 2025 08:44:13 +0100 (CET) From: Alexander Stein To: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, frank.li@nxp.com, Sherry Sun Cc: devicetree@vger.kernel.org, kernel@pengutronix.de, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH V2] arm64: dts: imx8qm-ss-dma: correct the dma channels of lpuart Date: Thu, 04 Dec 2025 08:44:12 +0100 Message-ID: <3023939.e9J7NaK4W3@steina-w> Organization: TQ-Systems GmbH In-Reply-To: <20251203015956.116364-1-sherry.sun@nxp.com> References: <20251203015956.116364-1-sherry.sun@nxp.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-relay112-hz1.antispameurope.com with 4dMRNG3FgKzwTWn X-cloud-security-connect: he-nlb01-hz1.hornetsecurity.com[94.100.132.6], TLS=1, IP=94.100.132.6 X-cloud-security-Digest:073b527d389ddc73e181e67b15c075cb X-cloud-security:scantime:2.175 DKIM-Signature: a=rsa-sha256; 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Dezember 2025, 02:59:56 CET schrieb Sherry Sun: > The commit 616effc0272b5 ("arm64: dts: imx8: Fix lpuart DMA channel > order") swap uart rx and tx channel at common imx8-ss-dma.dtsi. But miss > update imx8qm-ss-dma.dtsi. >=20 > The commit 5a8e9b022e569 ("arm64: dts: imx8qm-ss-dma: Pass lpuart > dma-names") just simple add dma-names as binding doc requirement. >=20 > Correct lpuart0 - lpuart3 dma rx and tx channels, and use defines for > the FSL_EDMA_RX flag. >=20 > Fixes: 5a8e9b022e56 ("arm64: dts: imx8qm-ss-dma: Pass lpuart dma-names") > Signed-off-by: Sherry Sun Reviewed-by: Alexander Stein > --- > Changes in V2: > 1. Correct the fixes commit as Frank and Alexander suggested. > --- > arch/arm64/boot/dts/freescale/imx8qm-ss-dma.dtsi | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) >=20 > diff --git a/arch/arm64/boot/dts/freescale/imx8qm-ss-dma.dtsi b/arch/arm6= 4/boot/dts/freescale/imx8qm-ss-dma.dtsi > index 5f24850bf322..974e193f8dcb 100644 > --- a/arch/arm64/boot/dts/freescale/imx8qm-ss-dma.dtsi > +++ b/arch/arm64/boot/dts/freescale/imx8qm-ss-dma.dtsi > @@ -172,25 +172,25 @@ &flexcan3 { > =20 > &lpuart0 { > compatible =3D "fsl,imx8qm-lpuart", "fsl,imx8qxp-lpuart"; > - dmas =3D <&edma2 13 0 0>, <&edma2 12 0 1>; > + dmas =3D <&edma2 12 0 FSL_EDMA_RX>, <&edma2 13 0 0>; > dma-names =3D "rx","tx"; > }; > =20 > &lpuart1 { > compatible =3D "fsl,imx8qm-lpuart", "fsl,imx8qxp-lpuart"; > - dmas =3D <&edma2 15 0 0>, <&edma2 14 0 1>; > + dmas =3D <&edma2 14 0 FSL_EDMA_RX>, <&edma2 15 0 0>; > dma-names =3D "rx","tx"; > }; > =20 > &lpuart2 { > compatible =3D "fsl,imx8qm-lpuart", "fsl,imx8qxp-lpuart"; > - dmas =3D <&edma2 17 0 0>, <&edma2 16 0 1>; > + dmas =3D <&edma2 16 0 FSL_EDMA_RX>, <&edma2 17 0 0>; > dma-names =3D "rx","tx"; > }; > =20 > &lpuart3 { > compatible =3D "fsl,imx8qm-lpuart", "fsl,imx8qxp-lpuart"; > - dmas =3D <&edma2 19 0 0>, <&edma2 18 0 1>; > + dmas =3D <&edma2 18 0 FSL_EDMA_RX>, <&edma2 19 0 0>; > dma-names =3D "rx","tx"; > }; > =20 >=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/