Re: [PATCH v2 1/2] dt-bindings: serial: 8250: add Microchip Core16550

[sashiko-bot@kernel.org]

> From: Kohei Otsuka <kohei@spacemachines.com>
> 
> Core16550 is a 16550-compatible UART soft IP core for Microchip FPGAs,
> including the fabric of PolarFire SoC. Its registers, interrupts and
> baud rate divisor follow the 16550A, so a driver that knows only
> ns16550a operates it fully: transmit, receive, FIFOs and modem control
> all work. What the generic driver cannot know is that the core raises
> no interrupt on TEMT, which it needs to drop RTS after a frame in
> software RS-485 mode (em485). ns16550a therefore stays a valid
> fallback, with RS-485 RTS control the one feature that needs the
> specific compatible.
> 
> Add microchip,core16550-rtl-v3 with ns16550a as the fallback. As for
> Microchip's other FPGA fabric cores, the -rtl-v3 suffix is the major
> RTL version of the IP, Core16550 3.x.
> 
> Link: https://github.com/linux4microchip/meta-mchp/issues/5
> Signed-off-by: Kohei Otsuka <kohei@spacemachines.com>

Sashiko has reviewed this patch and found no issues.

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Sashiko AI review · https://sashiko.dev/#/patchset/20261109-core16550-rs485-v2-0-a15933c7b907@spacemachines.com?part=1