linux-kernel - [PATCH 2/3] dt-bindings: serial: amlogic,meson-uart: Add compatible string for A9

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Message-Id: <20260205-a9-baisc-dts-v1-2-1212b46f95a7@amlogic.com>
Date: Thu, 05 Feb 2026 06:04:03 +0000
From: Xianwei Zhao via B4 Relay <devnull+xianwei.zhao.amlogic.com@...nel.org>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Neil Armstrong <neil.armstrong@...aro.org>, 
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>, 
 Jerome Brunet <jbrunet@...libre.com>, Kevin Hilman <khilman@...libre.com>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Jiri Slaby <jirislaby@...nel.org>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-serial@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-amlogic@...ts.infradead.org, Xianwei Zhao <xianwei.zhao@...ogic.com>
Subject: [PATCH 2/3] dt-bindings: serial: amlogic,meson-uart: Add
 compatible string for A9

From: Xianwei Zhao <xianwei.zhao@...ogic.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@...ogic.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