Hello,
Please let me know if you have any information regarding this issue.
thanks
-Stan Johnson
On 10/30/25 4:14 PM, Stan Johnson wrote:
Attached are the dtc output files for a PB Lombard and a PB 3400c. If
you need any other information, please let me know.
Thanks for looking into this.
-Stan Johnson
-----
On 10/29/25 11:00 AM, Stan Johnson wrote:
On 10/29/25 1:29 AM, Segher Boessenkool wrote:
On Tue, Oct 28, 2025 at 08:17:27PM -0500, Rob Herring wrote:
On Tue, Oct 28, 2025 at 7:05 PM Stan Johnson <[email protected]> wrote:
-------- Forwarded Message --------
Subject: Excluded List for "#size-cells" warning
Date: Tue, 28 Oct 2025 10:00:25 -0600
From: Stan Johnson <[email protected]>
To: [email protected]
CC: Finn Thain <[email protected]>, Christophe Leroy
<[email protected]>
Hello,
On a PowerBook G3 Pismo running the latest Debian SID, dmesg
reports the
warning shown below. I've also seen the warning on PowerBook
Lombard and
Wallstreet systems. I haven't checked PowerBook 3400c or Kanga.
Can you send me a dump of the device tree on these systems:
dtc -O dts /proc/device-tree
Please see the attached compressed files containing dtc output for a
Wallstreet (dtc_wallstreet.txt) and a Pismo (dtc_pismo.txt).
We've been fixing up these cases such as in commit 7e67ef889c9a
("powerpc/prom_init: Fixup missing #size-cells on PowerBook6,7")
And of course it is perfectly fine for an actual Open Firmware to *not*
repeat the defaults. As the documentation (the main IEEE 1275 thing)
says: "A missing “#size-cells” property signifies the default value of
one." There are many other places in OF geared towards this default
btw, take for example the "reg" word, that silently assumes your node's
#size-cells is 1, and does completely the wrong thing if not.
Flattened device trees are a fine thing, but the gratuitous ways it
differs from OF, are not.
Segher
