Re: [PATCH v4 01/21] serial: rewrite pxa2xx-uart to use 8250_core

Rob Herring
2015-01-19T18:09:00Z

On Wed, Apr 16, 2014 at 12:13 PM, Sergei Ianovich <ynvich@gmail.com> wrote:
> pxa2xx-uart was a separate uart platform driver. It was declaring
> the same device names and numbers as 8250 driver. As a result,
> it was impossible to use 8250 driver on PXA SoCs.
>
> Upon closer examination pxa2xx-uart turned out to be a clone of
> 8250_core driver.
>
> Workaround for Erratum #19 according to Marvel(R) PXA270M Processor
> Specification Update (April 19, 2010) is dropped. 8250_core reads
> from FIFO immediately after checking DR bit in LSR.
>
> Signed-off-by: Sergei Ianovich <ynvich@gmail.com>
> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> Reviewed-by: James Cameron <quozl@laptop.org>
> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> ---
> Resenging together with the rest of the series as the series
> breaks without this one at [PATCH 12/21]

Whatever happened with merging this? I'm asking because either this or
fixes to PXA uart are needed to coexist with the 8250 driver and for
earlycon to work.

Rob