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dt-bindings: serial: 8250: Add Loongson 3A4000 uart compatible

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The UART controller on Loongson 3A4000 is compatible with Loongson
2K1500, which is NS16550A-compatible with an additional fractional
frequency divisor register.

Add loongson,ls3a4000-uart as compatible with loongson,ls2k1500-uart.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Rong Zhang <rongrong@oss.cipunited.com>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Link: https://patch.msgid.link/20260315184301.412844-2-rongrong@oss.cipunited.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Rong Zhang 2026-03-16 02:42:56 +08:00 committed by Greg Kroah-Hartman
parent c8f3ac729f
commit 17fb51a90e
1 changed files with 1 additions and 0 deletions
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Documentation/devicetree/bindings/serial/8250.yaml
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@ -179,6 +179,7 @@ properties:
- const: ns16550a
- items:
- enum:
- loongson,ls3a4000-uart
- loongson,ls3a5000-uart
- loongson,ls3a6000-uart
- loongson,ls2k2000-uart