Re: [PATCH v4 1/2] dt-bindings: serial: Document WK2xxx SPI UART

From: Conor Dooley

Date: Tue Sep 08 2026 - 14:24:13 EST


On Tue, Sep 08, 2026 at 06:31:28PM +0800, zjzhao@xxxxxxxxx wrote:
> From: Zi Jie Zhao <zjzhao@xxxxxxxxx>
>
> Add a DT binding for the WK2xxx SPI to UART bridge ICs (WK2124, WK2132,
> WK2168, WK2202 and WK2204) from Chengdu Weikai Microelectronics (WKmic).
> Describe each UART channel with a serial@N child node carrying its serial
> and RS-485 properties. Register the wkmic vendor prefix based on the vendor
> website http://www.wkmic.com/.
>
> Differentiate compatible strings by channel count and
> register availability. Account for missing hardware flow-control and
> RS-485 registers on WK2132 and WK2202. Reject serial@2 and serial@3 on the
> two-channel members.
>
> Require the standard clocks property for the single external reference
> clock used by the chips.
>
> Signed-off-by: Zi Jie Zhao <zjzhao@xxxxxxxxx>

Reviewed-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
pw-bot: not-applicable

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