Andreas,

On Fri, Aug 1, 2014 at 2:10 PM, Andreas Färber [off-list ref] wrote:

Hi Doug,

Am 01.08.2014 22:28, schrieb Doug Anderson:

quoted

On Thu, Jul 31, 2014 at 9:54 PM, Andreas Färber [off-list ref] wrote:

quoted

exynos5250-cros-common.dtsi had an empty /chosen node.
Fill in exemplary boot arguments.

Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 v5: New
 Cleanup for /chosen node moved into -snow.dts.

 arch/arm/boot/dts/exynos5250-snow.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts
index 7680d5e03fb3..c4b0c73c736d 100644
--- a/arch/arm/boot/dts/exynos5250-snow.dts
+++ b/arch/arm/boot/dts/exynos5250-snow.dts

@@ -27,6 +27,7 @@
        };

        chosen {
+               bootargs = "console=tty1";

As mentioned earlier, I don't think this is a particularly useful
change.  Just this boot argument is not enough to boot with anyway, so
listing it doesn't really help anyone.  In theory you could make some
assertion about what the "most popular" boot device and filesystem is,
but it seems unlikely to cover the majority of the cases.

I won't NAK this change myself, but I certainly won't push for it.

This patch should be entirely optional.

I believe you said it wasn't necessary because the bootloader supplies
it. My point is that someone needs to know what to put into the bootargs
(setenv / boot.scr / uEnv.txt) - knowing whether it's ttySAC3 vs.
ttySAC2 vs. ttyS0 etc. has been pretty handy for me. In this case, Snow
and Spring use an identical console, so not sure if it might be tty2 or
something elsewhere?

...but in your case you're not including any of that info.  tty1 is a
LCD console, isn't it?

My question of what to use for linux,stdout-path (which was elsewhere
mentioned as successor to bootargs in that regard) remained unanswered.
Should it point to the dp-controller node or what?

No idea since I've never heard of linux,stdout-path other than your
emails.  Maybe someone else can chime in and I'll learn something.  ;)

-Doug