[PATCH v3] dt-bindings: serial: ingenic: Add the X1600

[Olivier Louvignes]

The X1600's UARTs have the X1000's registers and 64-byte FIFOs. Add
ingenic,x1600-uart, with the X1000's as fallback.

Signed-off-by: Olivier Louvignes <olivier@xxxxxxxxx>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxxxxx>
---
Changes since v2:
- Drop the driver patch that set UMR and UACR at probe. After a reset
  the X1600's UMR already reads 16: the 0 the manual gives is what a
  clock-gated UART reads, which is also what Nikolaus saw from U-Boot.
  What needs fixing is a value a boot loader leaves (the HiBy R1's sets
  8 on UART2, its console), which is the boot loader's business, as
  Nikolaus said, not the X1600's.
- Move the new entry last, sorted by fallback (Krzysztof).
- Add Krzysztof's Acked-by.

v2: https://lore.kernel.org/all/20261024220712.23250-1-olivier@xxxxxxxxx/
v1: https://lore.kernel.org/all/20261024051515.55639-1-olivier@xxxxxxxxx/

 Documentation/devicetree/bindings/serial/ingenic,uart.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/serial/ingenic,uart.yaml b/Documentation/devicetree/bindings/serial/ingenic,uart.yaml
index d5f153bdeb0d..0c452f20e103 100644
--- a/Documentation/devicetree/bindings/serial/ingenic,uart.yaml
+++ b/Documentation/devicetree/bindings/serial/ingenic,uart.yaml
@@ -35,6 +35,9 @@ properties:
       - items:
           - const: ingenic,jz4755-uart
           - const: ingenic,jz4750-uart
+      - items:
+          - const: ingenic,x1600-uart
+          - const: ingenic,x1000-uart
 
   reg:
     maxItems: 1

base-commit: 6628e7d4c6b25c8d18f1345e3a20d21829aae7e4
-- 
2.54.0