[PATCH v2 1/3] arm64: dts: amlogic: t7: Add uart_c pinctrl pins group

Ronald Claveau
2026-04-16T08:55:22Z

Add the pin multiplexing configuration for UART C (TX, RX, CTS, RTS)
in the T7 SoC pinctrl node, required to route the UART C signals
through the correct pads before enabling the controller.

Signed-off-by: Ronald Claveau <linux-kernel-dev@aliel.fr>
---
arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi
index 7fe72c94ed623..4a55d9641bc9b 100644
--- a/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi
+++ b/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi
@@ -553,6 +553,18 @@ mux {
bias-pull-up;
};
};
+
+ uart_c_pins: uart-c {
+ mux {
+ groups = "uart_c_tx",
+ "uart_c_rx",
+ "uart_c_cts",
+ "uart_c_rts";
+ bias-pull-up;
+ output-high;
+ function = "uart_c";
+ };
+ };
};

gpio_intc: interrupt-controller@4080 {

--
2.49.0