On Wed, Nov 19, 2014 at 6:49 AM, Grant Likely <grant.likely@xxxxxxxxxx> wrote:
> On Wed, 12 Nov 2014 12:54:03 -0800
> , Kevin Cernekee <cernekee@xxxxxxxxx>
> wrote:
>> With a few tweaks, the PXA serial driver can handle other 16550A clones.
>> Add a fifo-size DT property to override the FIFO depth (BCM7xxx uses 32),
>> and {native,big}-endian properties similar to regmap to support SoCs that
>> have BE or "automagic endian" registers.
>
> Hold the phone, if these are 16550A clone ports, then why is the pxa
> driver being adapted to drive them? I would expect the of_serial.c
> driver to be used. It's already got support for multiple variants of the
> 16550.
Merely building serial8250 into a multiplatform kernel breaks every
other serial driver that uses "ttyS" and major/minor 4/64. Even if an
8250/16550A device is never probed.
More discussion in this thread:
http://www.spinics.net/lists/linux-serial/msg14811.html
