[SRU][linux-firmware][J/K][PATCH 0/4] Mediatek WLAN RZ616(MT7922) SAR table control

[Aaron Ma]

BugLink: https://bugs.launchpad.net/bugs/1997200

[Impact]
In order to make sure the amount of RF energy being absorbed by our
bodies is safe according to the FCC’s guidelines, products must undergo
and pass SAR testing.

[Fix]
Update firmware and add ACPI SAR table control to pass the testing.

[Test]
the unit is 0.5dBm in following:

Without the SAR table control:
$ sudo cat /sys/kernel/debug/ieee80211/phy0/mt76/txpower_sku | grep -i
user
CCK (user) : N.A N.A N.A N.A
OFDM (user) : 40 40 40 40 40 40 40 40
HT20 (user) : 40 40 40 40 40 40 40 40
HT40 (user) : 40 40 40 40 40 40 40 40 40
VHT20 (user) : 40 40 40 40 40 40 40 40 40 40 0 0
VHT40 (user) : 40 40 40 40 40 40 40 40 40 40 0 0
VHT80 (user) : 40 40 40 40 40 40 40 40 40 40 0 0
VHT160 (user) : 40 40 40 40 40 40 40 40 40 40 0 0
HE26 (user) : 40 40 40 40 40 40 40 40 40 40 40 40
HE52 (user) : 40 40 40 40 40 40 40 40 40 40 40 40
HE106 (user) : 40 40 40 40 40 40 40 40 40 40 40 40
HE242 (user) : 40 40 40 40 40 40 40 40 40 40 40 40
HE484 (user) : 40 40 40 40 40 40 40 40 40 40 40 40
HE996 (user) : 40 40 40 40 40 40 40 40 40 40 40 40
HE996x2 (user) : 40 40 40 40 40 40 40 40 40 40 40 40

After enabled SAR table control:
$ sudo cat /sys/kernel/debug/ieee80211/phy0/mt76/txpower_sku | grep -i
user
CCK (user) : N.A N.A N.A N.A
OFDM (user) : 26 26 26 26 26 26 26 26
HT20 (user) : 26 26 26 26 26 26 26 26
HT40 (user) : 26 26 26 26 26 26 26 26 26
VHT20 (user) : 26 26 26 26 26 26 26 26 26 26 0 0
VHT40 (user) : 26 26 26 26 26 26 26 26 26 26 0 0
VHT80 (user) : 26 26 26 26 26 26 26 26 26 26 0 0
VHT160 (user) : 26 26 26 26 26 26 26 26 26 26 0 0
HE26 (user) : 26 26 26 26 26 26 26 26 26 26 26 26
HE52 (user) : 26 26 26 26 26 26 26 26 26 26 26 26
HE106 (user) : 26 26 26 26 26 26 26 26 26 26 26 26
HE242 (user) : 26 26 26 26 26 26 26 26 26 26 26 26
HE484 (user) : 26 26 26 26 26 26 26 26 26 26 26 26
HE996 (user) : 26 26 26 26 26 26 26 26 26 26 26 26
HE996x2 (user) : 26 26 26 26 26 26 26 26 26 26 26 26

Also done stress test with iperf, all works fine.

[Where problems could occur]
It may break mt7922 driver.

Deren Wu (2):
  linux-firmware: update firmware for MT7922 WiFi device
  linux-firmware: update firmware for MT7922 WiFi device

Sean Wang (2):
  linux-firmware: update firmware for mediatek bluetooth chip (MT7922)
  linux-firmware: update firmware for mediatek bluetooth chip (MT7922)

 WHENCE                                     |   6 +++---
 mediatek/BT_RAM_CODE_MT7922_1_1_hdr.bin    | Bin 496790 -> 505558 bytes
 mediatek/WIFI_MT7922_patch_mcu_1_1_hdr.bin | Bin 137632 -> 137632 bytes
 mediatek/WIFI_RAM_CODE_MT7922_1.bin        | Bin 763832 -> 823748 bytes
 4 files changed, 3 insertions(+), 3 deletions(-)

-- 
2.38.1