Comment 3 for bug 1689818

On Wed, May 10, 2017 at 9:15 AM, Timur Tabi <email address hidden>
wrote:
> You need all four patches. The last one is in the tty-next tree:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git/commit/?h=tty-next&id=5a0722b898f851b9ef108ea7babc529e4efc773d

Thanks will cherry pick from there.

>
> From: Manoj Iyer <email address hidden>
> Date: Wednesday, May 10, 2017 at 9:02 AM
> To: Timur Tabi <email address hidden>
> Cc: Manoj Iyer <email address hidden>
> Subject: Re: What is the command to enable earlycon?
>
>
>
> On Wed, May 10, 2017 at 8:42 AM, Timur Tabi <email address hidden>
> wrote:
>> You need these patches:
>>
>> tty: pl011: Work around QDF2400 E44 stuck BUSY bit (4.10)
>> tty: acpi/spcr: QDF2400 E44 checks for wrong OEM revision (4.11)
>> tty: pl011: fix earlycon work-around for QDF2400 erratum 44 (4.11)
>
> These are in linus's tree or linux-next
>> tty: pl011: use "qdf2400_e44" as the earlycon name for QDF2400
>> E44 (4.12)
>
> But this one is not in linux-next yet.
>
>> and then it's one of these two:
>>
>> earlycon=qdf2400_e44,0xff78ed1000 (UART)
>> earlycon=qdf2400_e44,0xff78ef1000 (SOL)
>>
>> Or you can just do "earlycon" without anything after that, but that
>> triggers after the ACPI tables have been parsed.
>>
>> From: Manoj Iyer <email address hidden>
>> Date: Wednesday, May 10, 2017 at 8:30 AM
>> To: Timur Tabi <email address hidden>
>> Subject: What is the command to enable earlycon?
>>
>> Timur,
>>
>> What is the kernel parameter to enable earlycon? I know it changed
>> for AW and we have never used it . I need it to test
>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1689818
>>
>> Thanks
>> Manoj Iyer