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. > > The one downside with this approach is that it doesn't do anything for > early console setup. That still needs to be added on a per-driver basis, > but at least it shouldn't conflict with this approach. Looks sane to me (as discussed in person). I gave it a run on PWRficient with and without console= line (8250-based uart), and it behaved as expected. A couple of nits on the series, replied to two of the patches. I'll give it a run through the board farm here too, but I'll keep console= bootargs there for those boots at this time, too much to change to take it out everywhere. :-) -Olof -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
