Re: regression: 3a878c430fd6 ("tty: serial: msm: Add TX DMA support") drops data

[Frank Rowand]

On 4/21/2016 1:42 PM, Andy Shevchenko wrote:
> On Thu, Apr 21, 2016 at 4:00 AM, Frank Rowand <frowand.list@xxxxxxxxx> wrote:
>> On 4/20/2016 9:48 AM, Frank Rowand wrote:

< snip >

>> I'm not sure if the driver was in DMA or PIO mode, both
>> before the change and after.  This seems like a rather
>> important question to answer, so I'll try to verify
>> that tonight.

I was in PIO mode.

I found the problem and submitted a fix.

   [PATCH 0/2] tty: serial: msm_serial regression and add info message
   [PATCH 1/2] tty: serial: msm_serial regression fix data corruption
   [PATCH 2/2] tty: serial: msm_serial add info message


< snip >

-Frank