On Sun, Dec 26, 2021 at 4:37 PM Hector Martin [off-list ref] wrote:

On Apple ARM64 platforms, firmware selection requires two properties
that come from system firmware: the module-instance (aka "island", a
codename representing a given hardware platform) and the antenna-sku.

The module-instance is hard-coded in per-board DTS files, while the
antenna-sku is forwarded by our bootloader from the Apple Device Tree
into the FDT. Grab them from the DT so firmware selection can use
them.

The module-instance is used to construct a board_type by prepending it
with "apple,".

Signed-off-by: Hector Martin <redacted>

Reviewed-by: Linus Walleij <redacted>

Yours,
Linus Walleij