Re: [PATCH 0/3] tty: serial: 8250_omap: Enable DMA support

[Vignesh R]

On Friday 13 January 2017 11:50 PM, Tony Lindgren wrote:
> * Vignesh R <vigneshr@xxxxxx> [170113 00:03]:
>> This patch series re enables DMA support for UART 8250_omap driver.
>>
>> Tested on AM335x, AM437x that use EDMA and OMAP5 and DRA74 EVM with
>> SDMA.
> 
> Is 8250_omap serial console working for you on omap5 in general?
> 
> I've noticed that it's really unresponsive for me as if the FIFO
> interrupt was not working. For example logging in might take several
> attempts and a long time with each character showing up much later
> after some timeout.
> 

Yes, I did face the same issue on omap5 using 8250_omap driver for
console. Looks like this bug has existed all along.

> TX on the uart on omap5 seems to work OK, I do see all the console
> messages fine. And these patches do not make the issue better or
> worse.
> 

True.

-- 
Regards
Vignesh