On Mon, Mar 31, 2014 at 10:41:24AM +0100, Grant Likely wrote: > On Mon, 31 Mar 2014 09:10:15 +0200, Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> wrote: > > 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 <s.hauer@xxxxxxxxxxxxxx> > > Brilliant! Thanks Sascha. > > Can you supply a patch to add stdout to the imx dts files? The information which console is used on each board is not in the kernel. I can create a patch adding stdout for a handful of boards I know, but I won't catch all. Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | -- 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
