[PATCH v7 09/12] dt-bindings: serial: snps-dw-apb-uart: add Allwinner A523

James Hilliard james.hilliard1 at gmail.com
Tue Nov 3 13:40:02 PST 2026


The A523 UART integration has different FIFO depths across its controllers
and reports each controller's depth in the FIFO Clock Control register.
The receive thresholds follow the standard DesignWare FIFO-relative
mapping, while the optional-register layout differs from the generic
DesignWare integration.

Add a compatible for this integration, also used by A527 and T527, with
snps,dw-apb-uart as a fallback.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski at oss.qualcomm.com>
Signed-off-by: James Hilliard <james.hilliard1 at gmail.com>
---
 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 fc1289073241..ea6ce99178e3 100644
--- a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
@@ -61,6 +61,7 @@ properties:
       - items:
           - enum:
               - allwinner,sun50i-h616-uart
+              - allwinner,sun55i-a523-uart
               - anlogic,dr1v90-uart
               - brcm,bcm11351-dw-apb-uart
               - brcm,bcm21664-dw-apb-uart

-- 
2.53.0




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