dt-bindings: serial: amlogic,meson-uart: Add compatible string for A4

Amlogic A4 SoCs uses the same UART controller as S4 SoCs and G12A.
There is no need for an extra compatible line in the driver, but
add A4 compatible line for documentation.

Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20240401-basic_dt-v3-3-cb29ae1c16da@amlogic.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
index 2e189e548327daa360dcd553f807ff52acd7f002..0565fb7649c5b3f150c5066061f816b36ee023df 100644 (file)
--- a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
@@ -54,7 +54,9 @@ properties:
           - const: amlogic,meson-gx-uart
       - description: UART controller on S4 compatible SoCs
         items:
-          - const: amlogic,t7-uart
+          - enum:
+              - amlogic,a4-uart
+              - amlogic,t7-uart
           - const: amlogic,meson-s4-uart
 
   reg: