From 8c63821f227f7fd8b9e0adc3cd4b26e5b8eeb71e Mon Sep 17 00:00:00 2001
From: Xianwei Zhao <xianwei.zhao@amlogic.com>
Date: Thu, 7 May 2026 08:21:06 +0000
Subject: [PATCH] dt-bindings: pinctl: amlogic,pinctrl-a4: Add compatible
 string for A9

Update dt-binding document for pinctrl of Amlogic A9.

In Amlogic A9 SoC, a bank mux register reuse other banks.
The multiplexed part requires special processing and is
therefore incompatible with the previous SoCs.

Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
---
 .../devicetree/bindings/pinctrl/amlogic,pinctrl-a4.yaml          | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/amlogic,pinctrl-a4.yaml b/Documentation/devicetree/bindings/pinctrl/amlogic,pinctrl-a4.yaml
index 6ba66c2033b4..b69db1b95345 100644
--- a/Documentation/devicetree/bindings/pinctrl/amlogic,pinctrl-a4.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/amlogic,pinctrl-a4.yaml
@@ -17,6 +17,7 @@ properties:
     oneOf:
       - enum:
           - amlogic,pinctrl-a4
+          - amlogic,pinctrl-a9
           - amlogic,pinctrl-s6
           - amlogic,pinctrl-s7
       - items: