Amlogic G12A SoCs gained a new "divide XTAL by 2" bit. Everything else (we know about) is identical to the UART IP on GX (GXBB/GXL/GXM) SoCs. Add a new compatible string for this SoC so this new bit can be managed accordingly while keeping "amlogic,meson-gx-uart" as fallback compatible string. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx> --- Changes from v1 -> v2: - make meson-gx-uart a valid compatible string for meson-g12a-uart Changes from v2 -> v3: - don't add extra oneOf as all of the entries are enclosed in oneOf already - don't allow amlogic,meson-g12a-uart as standalone compatible string (which slipped through in v2 due to all of the formatting changes that the extra oneOf required) .../devicetree/bindings/serial/amlogic,meson-uart.yaml | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml index 3cbdde85ed71..22656efe8ddc 100644 --- a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml +++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml @@ -34,6 +34,11 @@ properties: - amlogic,meson-gx-uart - amlogic,meson-s4-uart - const: amlogic,meson-ao-uart + - description: Always-on power domain UART controller on G12A SoCs + items: + - const: amlogic,meson-g12a-uart + - const: amlogic,meson-gx-uart + - const: amlogic,meson-ao-uart - description: Everything-Else power domain UART controller enum: - amlogic,meson6-uart @@ -41,6 +46,10 @@ properties: - amlogic,meson8b-uart - amlogic,meson-gx-uart - amlogic,meson-s4-uart + - description: Everything-Else power domain UART controller on G12A SoCs + items: + - const: amlogic,meson-g12a-uart + - const: amlogic,meson-gx-uart reg: maxItems: 1 -- 2.39.2