Michael Williamson <michael.william...@criticallink.com> writes:

> I am working on platform from the davinci architecture that uses the 8520 UART
> driver.  However, there are some configurations that do not have a valid
> CTS input pin (it is a multi-purpose pin on a SoC part, and it may be 
> configured
> for other functions).  These configurations can cause a pile of "false" 
> MSR interrupts.  If, in 8250.c, I set the UART_BUG_NOMSR flag as part of
> the up->bugs information, the problem clears up.

[...]

> Should I create a new port type, add a new UPF_ flag in the flags field, 
> figure 
> out how to pass bugs information via platform data, or continue along the
> work-around path?  

I added Greg KH to Cc as he's maintaining the 8250 core now.

IMO, adding UPF_ flag(s) to indicate this bug seems like the right way
to go to me.

Kevin



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