wifi: carl9170: mac80211: document spatial multiplexing power save handler

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Replace the bare TODO comment in the SMPS configuration handler
with documentation explaining why the driver accepts but does not
act on SMPS mode changes.

The AR9170 advertises SM_PS disabled (both chains always active)
in its HT capabilities.  While mac80211 may still send SMPS
configuration requests, implementing static or dynamic SMPS would
require firmware support for per-chain enable/disable that the
AR9170 firmware (v1.9.9) does not provide.

Signed-off-by: Masi Osmani <mas-i@hotmail.de>
Acked-by: Christian Lamparter <chunkeey@gmail.com>
Link: https://patch.msgid.link/AM7PPF5613FA0B6B76223A73FFC756A19A99444A@AM7PPF5613FA0B6.EURP251.PROD.OUTLOOK.COM
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>

...

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Masi Osmani 2026-03-12 11:37:58 +01:00 • committed by Jeff Johnson

parent d6850f1984

commit a711bf00b8

1 changed files with 7 additions and 1 deletions

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drivers/net/wireless/ath/carl9170/main.c

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