Re: [PATCH] tty: serial: 8250_omap: do not defer termios changes

[John Ogness]

On 2016-04-05, Peter Hurley <peter@xxxxxxxxxxxxxxxxxx> wrote:
> On 03/31/2016 01:41 AM, John Ogness wrote:
>> It has been observed that the TX-DMA can stall
>
> Does this happen on any other OMAP part besides am335x?
> I looked back over the LKML history of this and didn't see
> any other design implicated in this problem.

I just ran the tests again using 4.6-rc2. I am able to reproduce the
dma-tx stall with am335x/edma and dra7/sdma.

Note: To achieve the stall, both the delayed_restore and the
      rx_dma_broken features of the mainline 8250_omap driver needed to
      be removed.

John Ogness