Re: [PATCH 3/4] serial: 8250_dw: Move 16550 compatible & LCR checks to dw8250_verify_write()

[Andy Shevchenko]

On Tue, Jun 28, 2022 at 3:43 PM Ilpo Järvinen
<ilpo.jarvinen@xxxxxxxxxxxxxxx> wrote:
>
> Rename dw8250_check_lcr() -> dw8250_verify_write() and add comment.
> Move LCR and 16550_compatible checks there. As offset is now passed and
> dw8250_verify_write() ensures it's UART_LCR, offset can use used
> instead of explicit UART_LCR.

...

> +/*
> + * DW UART can be configured to indicate BUSY in USR (with
> + * UART_16550_COMPATIBLE=NO or version prior to introducing that option).
> + * If BUSY is set while writing to LCR register, the write is ignored and
> + * needs to be retries.

retried

> + */


-- 
With Best Regards,
Andy Shevchenko