arm64: dts: allwinner: a523: Add UART1 pins

UART1 is normally used to connect to the Bluetooth side of a Broadcom
WiFi+BT combo chip. The connection uses 4 pins.

Add pinmux nodes for UART1, one for the RX/TX pins, and one for the
RTS/CTS pins.

Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Link: https://patch.msgid.link/20250628161608.3072968-5-wens@kernel.org
Signed-off-by: Chen-Yu Tsai <wens@csie.org>

diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
index 30613a0b1124ea49acd81da4ce6198ad2433c6c2..6f62201fd73917461af6d5342fdf33fb69552887 100644 (file)
--- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
@@ -168,6 +168,20 @@
                                allwinner,pinmux = <2>;
                                function = "uart0";
                        };
+
+                       /omit-if-no-ref/
+                       uart1_pins: uart1-pins {
+                               pins = "PG6", "PG7";
+                               function = "uart1";
+                               allwinner,pinmux = <2>;
+                       };
+
+                       /omit-if-no-ref/
+                       uart1_rts_cts_pins: uart1-rts-cts-pins {
+                               pins = "PG8", "PG9";
+                               function = "uart1";
+                               allwinner,pinmux = <2>;
+                       };
                };
 
                ccu: clock-controller@2001000 {