[PATCH net] net: airoha: npu: load the firmware without the sysfs fallback

[Vitaliy Sochnev]

On Fri,  7 Aug 2026 03:41:08 +0100, Vitaliy Sochnev wrote:
> request_firmware_direct() sets FW_OPT_NOFALLBACK_SYSFS, so a missing file
> is reported as -ENOENT whatever the firmware loader is configured to do,
> and the deferred probe path works as it was meant to.

Prior art I was not aware of when I sent this. Ziyang Huang described the
same failure and proposed the same fix for OpenWrt's copy of the driver in
March 2026:

  https://github.com/openwrt/openwrt/pull/22697

That one predates the refactor which folded the two request_firmware()
call sites into airoha_npu_load_firmware(), so it changes two lines rather
than one, and it was never sent here. The reasoning matches what I arrived
at independently, down to LEDS_LP55XX_COMMON being what selects the symbol
back on.

Recording it here rather than leaving it to be found later. If you would
like it in the commit message, I will send a v2 with a Link: tag.

Thanks,
Vitaliy