Hi Rob

On 03/05/2018 04:28 PM, Rob Herring wrote:

On Mon, Mar 5, 2018 at 9:00 AM,  [off-list ref] wrote:

quoted

From: Patrice Chotard <redacted>

Since dtc v1.4.6-9-gaadd0b65c987, aliases property name must
be lowercase only.
This allows to fix following warnings when compiling dtb
with W=1 option :

I'm so glad to see fixes before the dtc update landed in the kernel tree!

;-)

quoted

arch/arm/boot/dts/stih418-b2199.dtb: Warning (alias_paths): /aliases: aliases property name must include only lowercase and '-'
arch/arm/boot/dts/stih407-b2120.dtb: Warning (alias_paths): /aliases: aliases property name must include only lowercase and '-'
arch/arm/boot/dts/stih410-b2260.dtb: Warning (alias_paths): /aliases: aliases property name must include only lowercase and '-'
arch/arm/boot/dts/stih410-b2120.dtb: Warning (alias_paths): /aliases: aliases property name must include only lowercase and '-'

Signed-off-by: Patrice Chotard <redacted>
---
  arch/arm/boot/dts/stih407-b2120.dts | 4 ++--
  arch/arm/boot/dts/stih410-b2120.dts | 4 ++--
  arch/arm/boot/dts/stih410-b2260.dts | 4 ++--
  arch/arm/boot/dts/stih418-b2199.dts | 4 ++--
  4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/arm/boot/dts/stih407-b2120.dts b/arch/arm/boot/dts/stih407-b2120.dts
index c8ad905d0309..fa1186af6574 100644
--- a/arch/arm/boot/dts/stih407-b2120.dts
+++ b/arch/arm/boot/dts/stih407-b2120.dts

@@ -14,7 +14,7 @@
         compatible = "st,stih407-b2120", "st,stih407";

         chosen {
-               bootargs = "console=ttyAS0,115200 clk_ignore_unused";
+               bootargs = "console=ttyas0,115200 clk_ignore_unused";

The kernel change for this is an ABI breakage both DT <-> kernel and
kernel <-> userspace.

Really, if you are okay with doing this, you should change it to ttySx IMO.

OK i will use serialN instead

quoted

                 linux,stdout-path = &sbc_serial0;

And since you have this, you don't even need the console praram.

Ok, i will remove stdout-path in an additional patch

quoted

         };

@@ -24,7 +24,7 @@
         };

         aliases {
-               ttyAS0 = &sbc_serial0;
+               ttyas0 = &sbc_serial0;

The correct fix is use "serialN" for aliases.

Ok

I have a check for only known alias names which would give a better
warning, but David thought it was too restrictive.

quoted

                 ethernet0 = &ethernet0;
         };

Thanks

Patrice