From: Xianwei Zhao <xianwei.zhao@amlogic.com>

Amlogic A9 SoCs uses the same UART controller as S4 SoCs.
There is no need for an extra compatible line in the driver,
but add A9 compatible line for documentation.

Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
---
 Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
index d8ad1bb6172d..a2702319685d 100644
--- a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
@@ -56,6 +56,7 @@ properties:
         items:
           - enum:
               - amlogic,a4-uart
+              - amlogic,a9-uart
               - amlogic,s6-uart
               - amlogic,s7-uart
               - amlogic,s7d-uart

-- 
2.52.0

On Thu, Feb 5, 2026 at 7:04 AM Xianwei Zhao via B4 Relay
<devnull+xianwei.zhao.amlogic.com@kernel.org> wrote:
>
> From: Xianwei Zhao <xianwei.zhao@amlogic.com>
>
> Amlogic A9 SoCs uses the same UART controller as S4 SoCs.
> There is no need for an extra compatible line in the driver,
> but add A9 compatible line for documentation.
>
> Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

On Thu, Feb 05, 2026 at 06:04:03AM +0000, Xianwei Zhao wrote:
> Amlogic A9 SoCs uses the same UART controller as S4 SoCs.
> There is no need for an extra compatible line in the driver,
> but add A9 compatible line for documentation.
> 
> Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
> ---
>  Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml | 1 +
>  1 file changed, 1 insertion(+)

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

Best regards,
Krzysztof

On Thu, Feb 05, 2026 at 06:04:03AM +0000, Xianwei Zhao wrote:
> Amlogic A9 SoCs uses the same UART controller as S4 SoCs.
> There is no need for an extra compatible line in the driver,
> but add A9 compatible line for documentation.
> 
> Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
> ---
>  Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml | 1 +

Don't combine independent subsystems which prefer to receive separate
patchsets. There is no reason why this serial patch should be included here...

Best regards,
Krzysztof