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Bitterblue Smith 6195fc5121 wifi: rtw88: 8821c: Fix beacon loss and disconnect 
[ Upstream commit e1dfa21427 ]

Tenda U9 V2.0, which contains RTL8811CU, is practically unusable because
of frequent disconnections:

Feb 23 14:46:45 ideapad2 wpa_supplicant[427]: wlp3s0f3u2: CTRL-EVENT-BEACON-LOSS
Feb 23 14:46:46 ideapad2 wpa_supplicant[427]: wlp3s0f3u2: CTRL-EVENT-DISCONNECTED
	bssid=90:55:de:__:__:__ reason=4 locally_generated=1

Feb 23 14:46:52 ideapad2 wpa_supplicant[427]: wlp3s0f3u2: CTRL-EVENT-CONNECTED
	- Connection to 90:55:de:__:__:__ completed [id=0 id_str=]
Feb 23 14:46:54 ideapad2 wpa_supplicant[427]: wlp3s0f3u2: CTRL-EVENT-BEACON-LOSS
Feb 23 14:46:55 ideapad2 wpa_supplicant[427]: wlp3s0f3u2: CTRL-EVENT-DISCONNECTED
	bssid=90:55:de:__:__:__ reason=4 locally_generated=1

Feb 23 14:47:01 ideapad2 wpa_supplicant[427]: wlp3s0f3u2: CTRL-EVENT-CONNECTED
	- Connection to 90:55:de:__:__:__ completed [id=0 id_str=]
Feb 23 14:47:04 ideapad2 wpa_supplicant[427]: wlp3s0f3u2: CTRL-EVENT-BEACON-LOSS
Feb 23 14:47:05 ideapad2 wpa_supplicant[427]: wlp3s0f3u2: CTRL-EVENT-DISCONNECTED
	bssid=90:55:de:__:__:__ reason=4 locally_generated=1

This is caused by a mistake in the chip initialisation. This version of
the chip requires loading an extra AGC table right after the main one,
but the extra table is being loaded at the wrong time, in
rtw_chip_board_info_setup().

Move the extra AGC table loading to the right place, in
rtw_phy_load_tables().

The rtw_chip_board_info_setup() can only do "software" things, and
rtw_phy_load_tables() can really do IO.

Fixes: 5d6651fe85 ("rtw88: 8821c: support RFE type2 wifi NIC")
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/276c31d8-b9a8-4e54-a3ac-09b74657aff7@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-03-26 18:19:36 -04:00
arch ACPI: CPPC: enable AMD CPPC V2 support for family 17h processors 2024-03-26 18:19:36 -04:00
block block: sed-opal: handle empty atoms when parsing response 2024-03-26 18:19:12 -04:00
certs certs: Reference revocation list for all keyrings 2023-08-17 20:12:41 +00:00
crypto crypto: algif_hash - Remove bogus SGL free on zero-length error path 2024-02-23 09:25:11 +01:00
Documentation ovl: add support for appending lowerdirs one by one 2024-03-26 18:19:18 -04:00
drivers wifi: rtw88: 8821c: Fix beacon loss and disconnect 2024-03-26 18:19:36 -04:00
fs pstore: inode: Only d_invalidate() is needed 2024-03-26 18:19:34 -04:00
include bpf: Mark bpf_spin_{lock,unlock}() helpers with notrace correctly 2024-03-26 18:19:29 -04:00
init update workarounds for gcc "asm goto" issue 2024-02-23 09:24:47 +01:00
io_uring io_uring/net: fix overflow check in io_recvmsg_mshot_prep() 2024-03-26 18:19:18 -04:00
ipc Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
kernel bpf: Mark bpf_spin_{lock,unlock}() helpers with notrace correctly 2024-03-26 18:19:29 -04:00
lib net: blackhole_dev: fix build warning for ethh set but not used 2024-03-26 18:19:26 -04:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm readahead: avoid multiple marked readahead pages 2024-03-15 10:48:21 -04:00
net SUNRPC: fix some memleaks in gssx_dec_option_array 2024-03-26 18:19:36 -04:00
rust rust: upgrade to Rust 1.73.0 2024-02-16 19:10:43 +01:00
samples work around gcc bugs with 'asm goto' with outputs 2024-02-23 09:24:47 +01:00
scripts gen_compile_commands: fix invalid escape sequence warning 2024-03-26 18:19:11 -04:00
security landlock: Fix asymmetric private inodes referring 2024-03-06 14:48:39 +00:00
sound ASoC: wm8962: Fix up incorrect error message in wm8962_set_fll 2024-03-26 18:19:15 -04:00
tools objtool: Fix UNWIND_HINT_{SAVE,RESTORE} across basic blocks 2024-03-26 18:19:35 -04:00
usr initramfs: Encode dependency on KBUILD_BUILD_TIMESTAMP 2023-06-06 17:54:49 +09:00
virt ARM: 2023-09-07 13:52:20 -07:00
.clang-format iommu: Add for_each_group_device() 2023-05-23 08:15:51 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: rpm-pkg: rename binkernel.spec to kernel.spec 2023-07-25 00:59:33 +09:00
.mailmap 20 hotfixes. 12 are cc:stable and the remainder address post-6.5 issues 2023-10-24 09:52:16 -10:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS USB: Remove Wireless USB and UWB documentation 2023-08-09 14:17:32 +02:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS MAINTAINERS: add Catherine as xfs maintainer for 6.6.y 2024-02-16 19:10:43 +01:00
Makefile Linux 6.6.22 2024-03-15 14:25:07 -04:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.