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Sat, 20 Sep 2025 00:06:22 +0000 (UTC) From: bryan@bryanhinton.com To: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org Cc: angelogioacchino.delregno@collabora.com, conor+dt@kernel.org, krzk+dt@kernel.org, matthias.bgg@gmail.com, robh@kernel.org, Bryan Hinton Subject: [PATCH 1/2] arm64: dts: mediatek: mt7981b: add labels for UART0/1/2 nodes Date: Fri, 19 Sep 2025 19:06:11 -0500 Message-ID: <20250920000619.2643457-2-bryan@bryanhinton.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250920000619.2643457-1-bryan@bryanhinton.com> References: <20250920000619.2643457-1-bryan@bryanhinton.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 X-Proofpoint-GUID: dAW34huwMBD2ZGNGRR1ul9YqStwQp_PQ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwOTE5MDIyNyBTYWx0ZWRfXzEoCahNX+gc5 VbEKlIe620R4Lq+/s+eUTa+YgFCvmLMrc4M7J9p+H7ogauKFDvKLiJPzvpfCFg5jfyzmq0x5mal ZzaEwv6+92VSFZx7QI7Gr17PC/KzWhMGzyM71C7KQeiPTfl4ByTk7X6JHgkgoBZRx/ckfcU6TXa Krz+8zD4v800P/b/5HwOqJjMuE2nwybCqW13PMLe9J4h1qCVf3lXbDPpb/MU7UvOhyihL+Y4JTV Lkmgh4AgbXfryTTgH8shtx0npibFvIOshLgF+ZHIRy90yTMEk90npbnowrA+OuyqXqQTYnDOY= X-Proofpoint-ORIG-GUID: dAW34huwMBD2ZGNGRR1ul9YqStwQp_PQ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-09-19_03,2025-09-19_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 spamscore=0 suspectscore=0 mlxscore=0 clxscore=1030 mlxlogscore=876 phishscore=0 malwarescore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.22.0-2506270000 definitions=main-2509190227 X-JNJ: AAAAAAABj/tlP4ypAfY5+cO4DGI33IYboO1Q5JXFUnInF2XSqrLy5TQi4k+81NIroUn9hONuPQFXBCq82VdR2Rc14GWxO8fcmGqcPbxyXcZ4UU3MuPVz/5Ybn78ZidO/V6ceanprgfyZUiTGAwDlm5ZB7Awt1QWNsmyNA3nSdm+FlOfZ5v70X2C/RB+VxPmeexFwolJ7ygUKoTYTzmSX00wdYqXt6WCfH9yD6MXrltLVZ6kd6Th+cb6j6ZNkqBgCqCDP0oZltDTgbkMhatcqRn7TfRuV13reAOins3aT8UYO/h8Nb4V7TY8IBNdpjm96iKCgWPF/s6jn3YMMDFZRIbgTybHn9ySmRWrEF1Z8hjcZHaAotpvZ61AFNfQtfF2AbpybfO/jTKbQeQhAqjgrr+uIrXsZWVyfwlf6XpPi5YDwmBtr0rXEpCzq6NzWfTbxdhxbU7WPCXUj69gO4zbACvYmKDrMwkToyL4x/M6tVI03p0YwXZC5KyrP2YxXo4SaSUbUDFSzrkkKmRt2ghYdc3TTYHoeXhou7tjIPGdH3si7Ehf2i+SM0n2vOIK014zrpvRh3iqLuLwEF/S8sAQigVZ/1DB9GIF6qcyU1MSwGRZiXIgml2t2kkX2WQabEbK4xX3xqVHDzCY35lQpgP5FkMi4btLtbklQQfV2CPwGHuUpcTWmmq2dI6vZz29Yr1WcDe+tPUwPKodVTLQLV7+01x3ut+L5SS2AzqTJ Content-Type: text/plain; charset="utf-8" Add stable labels (uart0, uart1, uart2) to the MT7981B SoC UART nodes so board DTS files can reference them directly. This change is purely cosmetic and introduces no functional differences. Verification: Built dtbs and boot-tested mainline Image+DTB via U-Boot on MT7981B hardware; decompiled DT shows the uart0 label present and the serial0 alias (or absolute path) resolves to serial@11002000. Signed-off-by: Bryan Hinton --- arch/arm64/boot/dts/mediatek/mt7981b.dtsi | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi b/arch/arm64/boot/dt= s/mediatek/mt7981b.dtsi index 5cbea9cd411f..4ee7fb83000d 100644 --- a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi @@ -94,7 +94,7 @@ pwm@10048000 { #pwm-cells =3D <2>; }; =20 - serial@11002000 { + uart0: serial@11002000 { compatible =3D "mediatek,mt7981-uart", "mediatek,mt6577-uart"; reg =3D <0 0x11002000 0 0x100>; interrupts =3D ; @@ -105,7 +105,7 @@ serial@11002000 { status =3D "disabled"; }; =20 - serial@11003000 { + uart1: serial@11003000 { compatible =3D "mediatek,mt7981-uart", "mediatek,mt6577-uart"; reg =3D <0 0x11003000 0 0x100>; interrupts =3D ; @@ -116,7 +116,7 @@ serial@11003000 { status =3D "disabled"; }; =20 - serial@11004000 { + uart2: serial@11004000 { compatible =3D "mediatek,mt7981-uart", "mediatek,mt6577-uart"; reg =3D <0 0x11004000 0 0x100>; interrupts =3D ; --=20 2.51.0