[PATCH v4 1/4] arm64: dts: amlogic: t7: Add uart_c pinctrl pins group

[Ronald Claveau <linux-kernel-dev@aliel.fr>]

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.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
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