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Huacai Chen a143ed263d USB: OHCI: Add quirk for LS7A OHCI controller (rev 0x02) 
commit bcb60d4385 upstream.

The OHCI controller (rev 0x02) under LS7A PCI host has a hardware flaw.
MMIO register with offset 0x60/0x64 is treated as legacy PS2-compatible
keyboard/mouse interface, which confuse the OHCI controller. Since OHCI
only use a 4KB BAR resource indeed, the LS7A OHCI controller's 32KB BAR
is wrapped around (the second 4KB BAR space is the same as the first 4KB
internally). So we can add an 4KB offset (0x1000) to the OHCI registers
(from the PCI BAR resource) as a quirk.

Cc: stable <stable@kernel.org>
Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Mingcong Bai <baimingcong@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Link: https://lore.kernel.org/r/20250328040059.3672979-1-chenhuacai@loongson.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-05-02 07:44:32 +02:00
arch KVM: x86: Reset IRTE to host control if *new* route isn't postable 2025-05-02 07:44:31 +02:00
block blk-iocost: do not WARN if iocg was already offlined 2025-05-02 07:44:22 +02:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:22:01 +02:00
crypto crypto: testmgr - some more fixes to RSA test vectors 2025-03-13 12:50:48 +01:00
Documentation scsi: libsas: Delete lldd_clear_aca callback 2025-05-02 07:44:07 +02:00
drivers USB: OHCI: Add quirk for LS7A OHCI controller (rev 0x02) 2025-05-02 07:44:32 +02:00
fs ksmbd: Prevent integer overflow in calculation of deadtime 2025-05-02 07:44:28 +02:00
include PCI: Assign PCI domain IDs by ida_alloc() 2025-05-02 07:44:28 +02:00
init module: sign with sha512 instead of sha1 by default 2025-05-02 07:44:25 +02:00
io_uring io_uring: fix possible deadlock in io_register_iowq_max_workers() 2024-11-17 15:06:25 +01:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:28:45 +01:00
kernel dma/contiguous: avoid warning about unused size_bytes 2025-05-02 07:44:29 +02:00
lib string: Add load_unaligned_zeropad() code path to sized_strscpy() 2025-05-02 07:44:28 +02:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm mm: fix apply_to_existing_page_range() 2025-05-02 07:44:24 +02:00
net net: selftests: initialize TCP header and skb payload with zero 2025-05-02 07:44:30 +02:00
samples samples/landlock: Fix possible NULL dereference in parse_path() 2025-03-13 12:49:57 +01:00
scripts selinux: Chain up tool resolving errors in install_policy.sh 2025-04-10 14:31:57 +02:00
security landlock: Add the errata interface 2025-05-02 07:44:20 +02:00
sound ASoC: codecs:lpass-wsa-macro: Fix logic of enabling vi channels 2025-05-02 07:44:12 +02:00
tools selftests/mm: generate a temporary mountpoint for cgroup filesystem 2025-05-02 07:44:28 +02:00
usr usr/include/Makefile: add linux/nfc.h to the compile-test coverage 2022-02-01 17:27:15 +01:00
virt KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin() 2024-10-22 15:40:41 +02:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore Remove *.orig pattern from .gitignore 2024-10-17 15:11:10 +02:00
.mailmap mailmap: add Andrej Shadura 2021-10-18 20:22:03 -10:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Daniel Drake to credits 2021-09-21 08:34:58 +03:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS trace: Relocate event helper files 2024-04-10 16:19:24 +02:00
Makefile kbuild: Add '-fno-builtin-wcslen' 2025-05-02 07:44:17 +02:00
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.