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    SubjectRe: [PATCH 0/3] tty: serial: 8250_omap: Enable DMA support
    * Vignesh R <vigneshr@ti.com> [170117 02:06]:
    >
    >
    > On Tuesday 17 January 2017 11:36 AM, Vignesh R wrote:
    > >
    > >
    > > 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.
    > >
    >
    > This looks a separate issue, I don't see any errata specific errata wrt
    > UART on OMAP5. I will try to debug further.

    OK maybe it's something configured or not configured by the bootloader
    that we're missing in the Linux driver?

    Other than the omap5 issue, 8250_OMAP seems to behave on all variants
    that I've tried it with so far.

    Regards,

    Tony

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