diff options
| author | Ping-Ke Shih <pkshih@realtek.com> | 2023-03-20 21:06:06 +0800 |
|---|---|---|
| committer | Kalle Valo <kvalo@kernel.org> | 2023-04-14 15:13:59 +0300 |
| commit | ffde7f3476a6dfd5856dc2af207dd0f950b10122 (patch) | |
| tree | ecb607548173be25a28a3b662b227012d1fa2ab9 /drivers/regulator/atc260x-regulator.c | |
| parent | b80ad23a8f2e0b63384cadc0aa2c1135b1dc03eb (diff) | |
wifi: rtw89: add firmware format version to backward compatible with older drivers
In the discuss threads [1] [2], new firmware format break user space
because older drivers can't recognize new firmware format. To avoid this,
the new format will be named rtw89/rtw8852b_fw-1.bin and only new driver
try to load it. Old drivers only load original and understandable firmware
rtw89/rtw8852b_fw.bin.
More, new driver will be still backward compatible with old firmware, so
original firmware can be used by new driver.
If there is newer firmware format is introduced, rtw89/rtw8852b_fw-2.bin
will be given. The same rules will be applied like above. So, we will have
firmware like below in linux-firmware in the future.
rtw89/rtw8852b_fw-2.bin
rtw89/rtw8852b_fw-1.bin
rtw89/rtw8852b_fw.bin
After this patch, MODULE_FIRMWARE() of 8852A/B/C become
rtw89/rtw8852a_fw.bin
rtw89/rtw8852b_fw-1.bin
rtw89/rtw8852c_fw.bin
[1] https://lore.kernel.org/linux-wireless/df1ce994-3368-a57e-7078-8bdcccf4a1fd@gmail.com/T/#m24cb43be31a762d0ea70bf07f27ae96c59f6931b
[2] https://bugzilla.kernel.org/show_bug.cgi?id=217207
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230320130606.20777-4-pkshih@realtek.com
Diffstat (limited to 'drivers/regulator/atc260x-regulator.c')
0 files changed, 0 insertions, 0 deletions