[PATCH 1/3] dt-bindings: serial: snps-dw-apb-uart: add Allwinner H616

From: James Hilliard

Date: Fri Oct 23 2026 - 03:36:36 EST


The Allwinner H616 UART has 256-byte FIFOs but does not implement the
DesignWare component parameter register used to discover their size.

Add a compatible to identify this integration and its fixed FIFO
configuration. Retain snps,dw-apb-uart as a fallback.

Signed-off-by: James Hilliard <james.hilliard1@xxxxxxxxx>
---
Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml | 1 +
1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
index e2ca126d58ba..fc1289073241 100644
--- a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
@@ -60,6 +60,7 @@ properties:
- const: renesas,rzn1-uart
- items:
- enum:
+ - allwinner,sun50i-h616-uart
- anlogic,dr1v90-uart
- brcm,bcm11351-dw-apb-uart
- brcm,bcm21664-dw-apb-uart

--
2.53.0