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SubjectRe: [PATCH 0/3] tty: serial: 8250_omap: Enable DMA support
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On Friday 13 January 2017 11:50 PM, Tony Lindgren wrote:
> * Vignesh R <vigneshr@ti.com> [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

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