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

[Juerg Haefliger]

Applied to linux-firmware jammy and kinetic branches.

...Juerg


> 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(-)
> 

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