Re: [PATCH] tty: serial: msm_serial: Fix XON/XOFF

From: Jorge Ramirez
Date: Mon May 20 2019 - 11:10:21 EST

On 5/20/19 17:03, Stephen Boyd wrote:
> Quoting Jorge Ramirez (2019-05-20 07:58:54)
>> On 5/20/19 16:56, Jorge Ramirez wrote:
>>> yeah, semantically confusing msm_reset_dm_count is what really matters:
>>> it tells the hardware to only take n bytes (in this case only one) so
>>> the others will be ignored
>> um after I said this, maybe iowrite32_rep should only be applied to
>> uartdm ... what do you think?
> Probably. The uartdm hardware typically required words everywhere while
> the pre-dm hardware didn't. It's an if condition so it should be OK.
> It may be time to remove non-uartdm support from this driver
> all-together. From what I recall the only devices that are upstream are
> the uartdm ones, so it may be easier to just remove the legacy stuff
> that nobody has tested in many years.

should this be merged before removing the non-uartdm support or after?

I also have some other changes - in particular with respect to the usage
of fifosize which according to the documentation is in words not in bytes.