ARM64: dts: meson-gx: add the missing uart_AO_B

This adds the missing node for the uart_AO_B port to the meson-gx.dtsi
(as this is supported by GXBB, GXL and GXM) along with the required
pinctrl pins. This is required as some boards are using it (the boards
from the Khadas VIM series for example have it exposed on the pin
headers).

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

3 files changed, 22 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
index be56b9fae2aa..9212fca6eb94 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
@@ -324,6 +324,14 @@
                                 status = "disabled";
                         };
 
+                        uart_AO_B: serial@4e0 {
+                                compatible = "amlogic,meson-uart";
+                                reg = <0x0 0x004e0 0x0 0x14>;
+                                interrupts = <GIC_SPI 197 IRQ_TYPE_EDGE_RISING>;
+                                clocks = <&xtal>;
+                                status = "disabled";
+                        };
+
                         ir: ir@580 {
                                 compatible = "amlogic,meson-gxbb-ir";
                                 reg = <0x0 0x00580 0x0 0x40>;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
index 5d686334f692..474435e21759 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
@@ -138,6 +138,13 @@
                         };
                 };
 
+                uart_ao_b_pins: uart_ao_b {
+                        mux {
+                                groups = "uart_tx_ao_b", "uart_rx_ao_b";
+                                function = "uart_ao_b";
+                        };
+                };
+
                 remote_input_ao_pins: remote_input_ao {
                         mux {
                                 groups = "remote_input_ao";
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
index 69216246275d..6d815f9930c9 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
@@ -88,6 +88,13 @@
                         };
                 };
 
+                uart_ao_b_pins: uart_ao_b {
+                        mux {
+                                groups = "uart_tx_ao_b", "uart_rx_ao_b";
+                                function = "uart_ao_b";
+                        };
+                };
+
                 remote_input_ao_pins: remote_input_ao {
                         mux {
                                 groups = "remote_input_ao";