[RFC PATCH] tty: xilinx_uartps: Fix break detection

[Greg KH]

On Tue, Jul 23, 2024 at 02:28:58PM +0000, James Minor wrote:
> Commit b8a6c3b3d465 ("tty: xilinx_uartps: Fix the ignore_status")
> used read_status_mask to mask the isrstatus, even though the
> commit appears to be fixing the application of the
> ignore_status_mask.  This has a side effect of clearing any
> pending CDNS_UART_IXR_FRAMING bit, which in turn means that
> cdns_uart_handle_rx break detection will only process framing
> errors when parity is enabled (INPCK set via
> cdns_uart_set_termios).
> 
> Fix this by removing the extra isrstatus masking with
> read_status_mask, which still allows the ignore_status_mask to be
> applied.
> 
> Fixes: b8a6c3b3d465 ("tty: xilinx_uartps: Fix the ignore_status")
> Signed-off-by: James Minor <jminor1 at opensource.cirrus.com>
> ---
> 
> The other alternative to this would be a straight revert of
> b8a6c3b3d465, since read_status_mask and ignore_status_mask are
> both applied in cnds_uart_handle_rx anyway.  Let me know the
> preference here and I will change accordingly.
> 
>  drivers/tty/serial/xilinx_uartps.c | 1 -
>  1 file changed, 1 deletion(-)

Hi,

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