[lkml]   [2014]   [Mar]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [RFC 0/5] of: Automatic console registration cleanups
On Fri, Mar 28, 2014 at 09:08:00AM -0700, Grant Likely wrote:
> Hi all,
> This is a series that I've been playing with over the last few days to
> clean up the selection of default console devices when using the device
> tree. The device tree defines a way of specifying the console by using a
> "stdout-path" property in the /chosen node, but very few drivers
> actually attempt to use that data, and so for most platforms there needs
> to be a "console=" line in the command line if a serial port is intended
> to be used as the console.
> With this series, if there is a /chosen/stdout-path property, and if
> that property points to a serial port node, then when the serial driver
> registers the port, the core uart_add_one_port() function will notice
> and if no console= argument was provided then add it as a preferred
> console.
> I've not tested this very extensively yet, but I want to get some
> feedback before I go further.

I gave it a test on i.MX. It works as expected with both
linux,stdout-path and stdout-path. Specifying a console on the
commandline still works and overrides the devicetree setting.

Tested-by: Sascha Hauer <>


Pengutronix e.K. | |
Industrial Linux Solutions | |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |

 \ /
  Last update: 2014-03-31 10:01    [W:0.177 / U:12.432 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site