lkml.org 
[lkml]   [2014]   [Jul]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [RFC PATCH] tty: serial: Add 8250-core based omap driver
On Wed, Jul 02, 2014 at 06:00:09PM +0200, Sebastian Andrzej Siewior wrote:
> This patch provides a 8250-core based UART driver for the internal OMAP
> UART. The longterm goal is to provide the same functionality as the
> current OMAP uart driver and hopefully DMA support which could borrowed
> from the 8250-core.

This sounds interesting. We are currently finding the omap serial driver
awefully slow at handling serial traffic with ti's 3.12.y kernel branch,
while the 3.8.y was seemingly a bit better (on the dra7xx eval board).
Haven't had time to really investigate that yet though.

> The whole PM-Runtime part is currently missing.
> It has been only tested as console UART.
> The tty name is ttyS based instead of ttyO. How big is the pain here,
> what could be the easiest way to provide compatibility?

I would certainly love to see ttyS instead of ttyO. But of course I am
working on a new system that isn't released yet so changing things is
a complete non issue for me. :)

I should give this driver a try and see how it compares so far.

--
Len Sorensen


\
 
 \ /
  Last update: 2014-07-03 21:21    [W:0.359 / U:0.196 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site