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Zhi-Jun You 4bd0594d53 wifi: mt76: mt7915: fix mt7981 pre-calibration 
[ Upstream commit 2b660ee10a ]

In vendor driver, size of group cal and dpd cal for mt7981 includes 6G
although the chip doesn't support it.

mt76 doesn't take this into account which results in reading from the
incorrect offset.

For devices with precal, this would lead to lower bitrate.

Fix this by aligning groupcal size with vendor driver and switch to
freq_list_v2 in mt7915_dpd_freq_idx in order to get the correct offset.

Below are iwinfo of the test device with two clients connected
(iPhone 16, Intel AX210).
Before :
	Mode: Master  Channel: 36 (5.180 GHz)  HT Mode: HE80
	Center Channel 1: 42 2: unknown
	Tx-Power: 23 dBm  Link Quality: 43/70
	Signal: -67 dBm  Noise: -92 dBm
	Bit Rate: 612.4 MBit/s
	Encryption: WPA3 SAE (CCMP)
	Type: nl80211  HW Mode(s): 802.11ac/ax/n
	Hardware: embedded [MediaTek MT7981]

After:
	Mode: Master  Channel: 36 (5.180 GHz)  HT Mode: HE80
	Center Channel 1: 42 2: unknown
	Tx-Power: 23 dBm  Link Quality: 43/70
	Signal: -67 dBm  Noise: -92 dBm
	Bit Rate: 900.6 MBit/s
	Encryption: WPA3 SAE (CCMP)
	Type: nl80211  HW Mode(s): 802.11ac/ax/n
	Hardware: embedded [MediaTek MT7981]

Tested-on: mt7981 20240823

Fixes: 19a954edec ("wifi: mt76: mt7915: add mt7986, mt7916 and mt7981 pre-calibration")
Signed-off-by: Zhi-Jun You <hujy652@gmail.com>
Link: https://patch.msgid.link/20250909064824.16847-1-hujy652@gmail.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-10-15 12:03:58 +02:00
arch arm64: dts: apple: Add ethernet0 alias for J375 template 2025-10-15 12:03:35 +02:00
block blk-throttle: fix throtl_data leak during disk release 2025-10-15 12:03:34 +02:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto crypto: rng - Ensure set_ent is always present 2025-10-12 13:01:57 +02:00
Documentation docs: iio: ad3552r: Fix malformed code-block directive 2025-10-15 12:03:43 +02:00
drivers wifi: mt76: mt7915: fix mt7981 pre-calibration 2025-10-15 12:03:58 +02:00
fs fs/ntfs3: reject index allocation if $BITMAP is empty but blocks exist 2025-10-15 12:03:55 +02:00
include ipv6: snmp: do not use SNMP_MIB_SENTINEL anymore 2025-10-15 12:03:54 +02:00
init Fix CC_HAS_ASM_GOTO_OUTPUT on non-x86 architectures 2025-10-15 12:03:13 +02:00
io_uring io_uring-6.17-20250919 2025-09-19 12:10:49 -07:00
ipc vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
kernel bpf: Enforce expected_attach_type for tailcall compatibility 2025-10-15 12:03:39 +02:00
lib vdso/datastore: Gate time data behind CONFIG_GENERIC_GETTIMEOFDAY 2025-10-15 12:03:24 +02:00
LICENSES LICENSES: Replace the obsolete address of the FSF in the GFDL-1.2 2025-07-24 11:15:39 +02:00
mm mm/slub: Fix cmp_loc_by_count() to return 0 when counts are equal 2025-10-15 12:03:56 +02:00
net ipvs: Use READ_ONCE/WRITE_ONCE for ipvs->enable 2025-10-15 12:03:56 +02:00
rust rust: cpumask: Mark CpumaskVar as transparent 2025-10-15 12:03:19 +02:00
samples 15 hotfixes. 11 are cc:stable and the remainder address post-6.16 issues 2025-09-17 21:34:26 -07:00
scripts scripts/misc-check: update export checks for EXPORT_SYMBOL_FOR_MODULES() 2025-10-15 12:03:22 +02:00
security lsm: CONFIG_LSM can depend on CONFIG_SECURITY 2025-10-15 12:03:17 +02:00
sound ASoC: Intel: bytcr_rt5651: Fix invalid quirk input mapping 2025-10-15 12:03:54 +02:00
tools tools: ynl: fix undefined variable name 2025-10-15 12:03:56 +02:00
usr usr/include: openrisc: don't HDRTEST bpf_perf_event.h 2025-05-12 15:03:17 +09:00
virt Merge tag 'kvm-x86-no_assignment-6.17' of https://github.com/kvm-x86/linux into HEAD 2025-07-29 08:36:42 -04:00
.clang-format Linux 6.15-rc5 2025-05-06 16:39:25 +10:00
.clippy.toml rust: clean Rust 1.88.0's warning about clippy::disallowed_macros configuration 2025-05-07 00:11:47 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: remove Alyssa Rosenzweig 2025-09-18 21:17:31 +02:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore gitignore: allow .pylintrc to be tracked 2025-07-02 17:10:04 -06:00
.mailmap 7 hotfixes. 4 are cc:stable and the remainder address post-6.16 issues or 2025-09-28 09:32:00 -07:00
.pylintrc docs: add a .pylintrc file with sys path for docs scripts 2025-04-09 12:10:33 -06:00
.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 MAINTAINERS: retire Boris from TLS maintainers 2025-08-26 17:36:01 -07:00
Kbuild drm: ensure drm headers are self-contained and pass kernel-doc 2025-02-12 10:44:43 +02:00
Kconfig io_uring: Rename KConfig to Kconfig 2025-02-19 14:53:27 -07:00
MAINTAINERS i2c-for-6.17-rc8 2025-09-28 13:19:23 -07:00
Makefile Linux 6.17.2 2025-10-12 13:01:58 +02:00
README README: Fix spelling 2024-03-18 03:36:32 -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 reStructuredText 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.