Linus Torvalds [Fri, 3 Oct 2025 20:47:10 +0000 (13:47 -0700)]
Merge tag 'ext4_for_linus-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"New ext4 features:
- Add support so tune2fs can modify/update the superblock using an
ioctl, without needing write access to the block device
- Add support for 32-bit reserved uid's and gid's
Bug fixes:
- Fix potential warnings and other failures caused by corrupted /
fuzzed file systems
- Fail unaligned direct I/O write with EINVAL instead of silently
falling back to buffered I/O
- Correectly handle fsmap queries for metadata mappings
- Avoid journal stalls caused by writeback throttling
- Add some missing GFP_NOFAIL flags to avoid potential deadlocks
under extremem memory pressure
Cleanups:
- Remove obsolete EXT3 Kconfigs"
* tag 'ext4_for_linus-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: fix checks for orphan inodes
ext4: validate ea_ino and size in check_xattrs
ext4: guard against EA inode refcount underflow in xattr update
ext4: implemet new ioctls to set and get superblock parameters
ext4: add support for 32-bit default reserved uid and gid values
ext4: avoid potential buffer over-read in parse_apply_sb_mount_options()
ext4: fix an off-by-one issue during moving extents
ext4: increase i_disksize to offset + len in ext4_update_disksize_before_punch()
ext4: verify orphan file size is not too big
ext4: fail unaligned direct IO write with EINVAL
ext4: correctly handle queries for metadata mappings
ext4: increase IO priority of fastcommit
ext4: remove obsolete EXT3 config options
jbd2: increase IO priority of checkpoint
ext4: fix potential null deref in ext4_mb_init()
ext4: add ext4_sb_bread_nofail() helper function for ext4_free_branches()
ext4: replace min/max nesting with clamp()
fs: ext4: change GFP_KERNEL to GFP_NOFS to avoid deadlock
Linus Torvalds [Fri, 3 Oct 2025 20:44:05 +0000 (13:44 -0700)]
Merge tag 'fs_for_v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull udf and quota updates from Jan Kara:
"A fix for UDF and quota"
* tag 'fs_for_v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fs: udf: fix OOB read in lengthAllocDescs handling
fs: quota: create dedicated workqueue for quota_release_work
Linus Torvalds [Fri, 3 Oct 2025 20:23:10 +0000 (13:23 -0700)]
Merge tag 'fsnotify_for_v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull fsnotify updates from Jan Kara:
- a couple of small cleanups and fixes
- implement fanotify watchdog that reports processes that fail to
respond to fanotify permission events in a given time
* tag 'fsnotify_for_v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fanotify: add watchdog for permission events
fanotify: Validate the return value of mnt_ns_from_dentry() before dereferencing
fsnotify: fix "rewriten"->"rewritten"
Linus Torvalds [Fri, 3 Oct 2025 19:48:18 +0000 (12:48 -0700)]
Merge tag 'fuse-update-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
- Extend copy_file_range interface to be fully 64bit capable (Miklos)
- Add selftest for fusectl (Chen Linxuan)
- Move fuse docs into a separate directory (Bagas Sanjaya)
- Allow fuse to enter freezable state in some cases (Sergey
Senozhatsky)
- Clean up writeback accounting after removing tmp page copies (Joanne)
- Optimize virtiofs request handling (Li RongQing)
- Add synchronous FUSE_INIT support (Miklos)
- Allow server to request prune of unused inodes (Miklos)
- Fix deadlock with AIO/sync release (Darrick)
- Add some prep patches for block/iomap support (Darrick)
- Misc fixes and cleanups
* tag 'fuse-update-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (26 commits)
fuse: move CREATE_TRACE_POINTS to a separate file
fuse: move the backing file idr and code into a new source file
fuse: enable FUSE_SYNCFS for all fuseblk servers
fuse: capture the unique id of fuse commands being sent
fuse: fix livelock in synchronous file put from fuseblk workers
mm: fix lockdep issues in writeback handling
fuse: add prune notification
fuse: remove redundant calls to fuse_copy_finish() in fuse_notify()
fuse: fix possibly missing fuse_copy_finish() call in fuse_notify()
fuse: remove FUSE_NOTIFY_CODE_MAX from <uapi/linux/fuse.h>
fuse: remove fuse_readpages_end() null mapping check
fuse: fix references to fuse.rst -> fuse/fuse.rst
fuse: allow synchronous FUSE_INIT
fuse: zero initialize inode private data
fuse: remove unused 'inode' parameter in fuse_passthrough_open
virtio_fs: fix the hash table using in virtio_fs_enqueue_req()
mm: remove BDI_CAP_WRITEBACK_ACCT
fuse: use default writeback accounting
virtio_fs: Remove redundant spinlock in virtio_fs_request_complete()
fuse: remove unneeded offset assignment when filling write pages
...
Linus Torvalds [Fri, 3 Oct 2025 19:14:24 +0000 (12:14 -0700)]
Merge tag 'ovl-update-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs
Pull overlayfs updates from Amir Goldstein:
- Work by André Almeida to support case-insensitive overlayfs
Underlying case-insensitive filesystems casefolding is per directory,
but for overlayfs it is all-or-nothing. It supports layers where all
directories are casefolded (with same encoding) or layers where no
directories are casefolded.
- A fix for a "bug" in Neil's ovl directory lock changes, which only
manifested itself with casefold enabled layers which may return an
unhashed negative dentry from lookup.
* tag 'ovl-update-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs:
ovl: make sure that ovl_create_real() returns a hashed dentry
ovl: Support mounting case-insensitive enabled layers
ovl: Check for casefold consistency when creating new dentries
ovl: Add S_CASEFOLD as part of the inode flag to be copied
ovl: Set case-insensitive dentry operations for ovl sb
ovl: Ensure that all layers have the same encoding
ovl: Create ovl_casefold() to support casefolded strncmp()
ovl: Prepare for mounting case-insensitive enabled layers
fs: Create sb_same_encoding() helper
fs: Create sb_encoding() helper
Linus Torvalds [Fri, 3 Oct 2025 18:37:50 +0000 (11:37 -0700)]
Merge tag 'pull-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc non-vfs updates from Al Viro:
"Assorted dead code removal around asm/pgtable.h"
* tag 'pull-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
alpha: unobfuscate _PAGE_P() definition
kill FIRST_USER_PGD_NR
alpha: get rid of the remnants of BAD_PAGE and friends
SET_PAGE_DIR() users had been gone since 2.3.12pre1
PAGE_PTR() had been last used outside of arch/* in 1.1.94
csky: remove BS check for FAULT_FLAG_ALLOW_RETRY
Linus Torvalds [Fri, 3 Oct 2025 18:14:02 +0000 (11:14 -0700)]
Merge tag 'pull-qstr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull d_name audit update from Al Viro:
"Simplifying ->d_name audits, easy part.
Turn dentry->d_name into an anon union of const struct qsrt (d_name
itself) and a writable alias (__d_name).
With constification of some struct qstr * arguments of functions that
get &dentry->d_name passed to them, that ends up with all
modifications provably done only in fs/dcache.c (and a fairly small
part of it).
Any new places doing modifications will be easy to find - grep for
__d_name will suffice"
* tag 'pull-qstr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
make it easier to catch those who try to modify ->d_name
generic_ci_validate_strict_name(): constify name argument
afs_dir_search: constify qstr argument
afs_edit_dir_{add,remove}(): constify qstr argument
exfat_find(): constify qstr argument
security_dentry_init_security(): constify qstr argument
Linus Torvalds [Fri, 3 Oct 2025 17:55:35 +0000 (10:55 -0700)]
Merge tag 'pull-nfsctl' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull nfsctl updates from Al Viro:
"nfsctl cleanups and a fix"
* tag 'pull-nfsctl' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
nfsd_get_inode(): lift setting ->i_{,f}op to callers.
nfsdfs_create_files(): switch to simple_start_creating()
_nfsd_symlink(): switch to simple_start_creating()
nfsd_mkdir(): switch to simple_start_creating()
nfsctl: symlink has no business bumping link count of parent directory
Linus Torvalds [Fri, 3 Oct 2025 17:51:44 +0000 (10:51 -0700)]
Merge tag 'pull-fs_context' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull fs_context updates from Al Viro:
"Change vfs_parse_fs_string() calling conventions
Get rid of the length argument (almost all callers pass strlen() of
the string argument there), add vfs_parse_fs_qstr() for the cases that
do want separate length"
* tag 'pull-fs_context' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
do_nfs4_mount(): switch to vfs_parse_fs_string()
change the calling conventions for vfs_parse_fs_string()
Linus Torvalds [Fri, 3 Oct 2025 17:19:44 +0000 (10:19 -0700)]
Merge tag 'pull-mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs mount updates from Al Viro:
"Several piles this cycle, this mount-related one being the largest and
trickiest:
- saner handling of guards in fs/namespace.c, getting rid of
needlessly strong locking in some of the users
- lock_mount() calling conventions change - have it set the
environment for attaching to given location, storing the results in
caller-supplied object, without altering the passed struct path.
Make unlock_mount() called as __cleanup for those objects. It's not
exactly guard(), but similar to it
- MNT_WRITE_HOLD done right.
mnt_hold_writers() does *not* mess with ->mnt_flags anymore, so
insertion of a new mount into ->s_mounts of underlying superblock
does not, in itself, expose ->mnt_flags of that mount to concurrent
modifications
- getting rid of pathological cases when umount() spends quadratic
time removing the victims from propagation graph - part of that had
been dealt with last cycle, this should finish it
- a bunch of stuff constified
- assorted cleanups
* tag 'pull-mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (64 commits)
constify {__,}mnt_is_readonly()
WRITE_HOLD machinery: no need for to bump mount_lock seqcount
struct mount: relocate MNT_WRITE_HOLD bit
preparations to taking MNT_WRITE_HOLD out of ->mnt_flags
setup_mnt(): primitive for connecting a mount to filesystem
simplify the callers of mnt_unhold_writers()
copy_mnt_ns(): use guards
copy_mnt_ns(): use the regular mechanism for freeing empty mnt_ns on failure
open_detached_copy(): separate creation of namespace into helper
open_detached_copy(): don't bother with mount_lock_hash()
path_has_submounts(): use guard(mount_locked_reader)
fs/namespace.c: sanitize descriptions for {__,}lookup_mnt()
ecryptfs: get rid of pointless mount references in ecryptfs dentries
umount_tree(): take all victims out of propagation graph at once
do_mount(): use __free(path_put)
do_move_mount_old(): use __free(path_put)
constify can_move_mount_beneath() arguments
path_umount(): constify struct path argument
may_copy_tree(), __do_loopback(): constify struct path argument
path_mount(): constify struct path argument
...
Linus Torvalds [Fri, 3 Oct 2025 01:44:54 +0000 (18:44 -0700)]
Merge tag 'mm-nonmm-stable-2025-10-02-15-29' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- "ida: Remove the ida_simple_xxx() API" from Christophe Jaillet
completes the removal of this legacy IDR API
- "panic: introduce panic status function family" from Jinchao Wang
provides a number of cleanups to the panic code and its various
helpers, which were rather ad-hoc and scattered all over the place
- "tools/delaytop: implement real-time keyboard interaction support"
from Fan Yu adds a few nice user-facing usability changes to the
delaytop monitoring tool
- "efi: Fix EFI boot with kexec handover (KHO)" from Evangelos
Petrongonas fixes a panic which was happening with the combination of
EFI and KHO
- "Squashfs: performance improvement and a sanity check" from Phillip
Lougher teaches squashfs's lseek() about SEEK_DATA/SEEK_HOLE. A mere
150x speedup was measured for a well-chosen microbenchmark
- plus another 50-odd singleton patches all over the place
* tag 'mm-nonmm-stable-2025-10-02-15-29' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (75 commits)
Squashfs: reject negative file sizes in squashfs_read_inode()
kallsyms: use kmalloc_array() instead of kmalloc()
MAINTAINERS: update Sibi Sankar's email address
Squashfs: add SEEK_DATA/SEEK_HOLE support
Squashfs: add additional inode sanity checking
lib/genalloc: fix device leak in of_gen_pool_get()
panic: remove CONFIG_PANIC_ON_OOPS_VALUE
ocfs2: fix double free in user_cluster_connect()
checkpatch: suppress strscpy warnings for userspace tools
cramfs: fix incorrect physical page address calculation
kernel: prevent prctl(PR_SET_PDEATHSIG) from racing with parent process exit
Squashfs: fix uninit-value in squashfs_get_parent
kho: only fill kimage if KHO is finalized
ocfs2: avoid extra calls to strlen() after ocfs2_sprintf_system_inode_name()
kernel/sys.c: fix the racy usage of task_lock(tsk->group_leader) in sys_prlimit64() paths
sched/task.h: fix the wrong comment on task_lock() nesting with tasklist_lock
coccinelle: platform_no_drv_owner: handle also built-in drivers
coccinelle: of_table: handle SPI device ID tables
lib/decompress: use designated initializers for struct compress_format
efi: support booting with kexec handover (KHO)
...
Linus Torvalds [Fri, 3 Oct 2025 01:18:33 +0000 (18:18 -0700)]
Merge tag 'mm-stable-2025-10-01-19-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- "mm, swap: improve cluster scan strategy" from Kairui Song improves
performance and reduces the failure rate of swap cluster allocation
- "support large align and nid in Rust allocators" from Vitaly Wool
permits Rust allocators to set NUMA node and large alignment when
perforning slub and vmalloc reallocs
- "mm/damon/vaddr: support stat-purpose DAMOS" from Yueyang Pan extend
DAMOS_STAT's handling of the DAMON operations sets for virtual
address spaces for ops-level DAMOS filters
- "execute PROCMAP_QUERY ioctl under per-vma lock" from Suren
Baghdasaryan reduces mmap_lock contention during reads of
/proc/pid/maps
- "mm/mincore: minor clean up for swap cache checking" from Kairui Song
performs some cleanup in the swap code
- "mm: vm_normal_page*() improvements" from David Hildenbrand provides
code cleanup in the pagemap code
- "add persistent huge zero folio support" from Pankaj Raghav provides
a block layer speedup by optionalls making the
huge_zero_pagepersistent, instead of releasing it when its refcount
falls to zero
- "kho: fixes and cleanups" from Mike Rapoport adds a few touchups to
the recently added Kexec Handover feature
- "mm: make mm->flags a bitmap and 64-bit on all arches" from Lorenzo
Stoakes turns mm_struct.flags into a bitmap. To end the constant
struggle with space shortage on 32-bit conflicting with 64-bit's
needs
- "mm/swapfile.c and swap.h cleanup" from Chris Li cleans up some swap
code
- "selftests/mm: Fix false positives and skip unsupported tests" from
Donet Tom fixes a few things in our selftests code
- "prctl: extend PR_SET_THP_DISABLE to only provide THPs when advised"
from David Hildenbrand "allows individual processes to opt-out of
THP=always into THP=madvise, without affecting other workloads on the
system".
It's a long story - the [1/N] changelog spells out the considerations
- "Add and use memdesc_flags_t" from Matthew Wilcox gets us started on
the memdesc project. Please see
https://kernelnewbies.org/MatthewWilcox/Memdescs and
https://blogs.oracle.com/linux/post/introducing-memdesc
- "Tiny optimization for large read operations" from Chi Zhiling
improves the efficiency of the pagecache read path
- "Better split_huge_page_test result check" from Zi Yan improves our
folio splitting selftest code
- "test that rmap behaves as expected" from Wei Yang adds some rmap
selftests
- "remove write_cache_pages()" from Christoph Hellwig removes that
function and converts its two remaining callers
- "selftests/mm: uffd-stress fixes" from Dev Jain fixes some UFFD
selftests issues
- "introduce kernel file mapped folios" from Boris Burkov introduces
the concept of "kernel file pages". Using these permits btrfs to
account its metadata pages to the root cgroup, rather than to the
cgroups of random inappropriate tasks
- "mm/pageblock: improve readability of some pageblock handling" from
Wei Yang provides some readability improvements to the page allocator
code
- "mm/damon: support ARM32 with LPAE" from SeongJae Park teaches DAMON
to understand arm32 highmem
- "tools: testing: Use existing atomic.h for vma/maple tests" from
Brendan Jackman performs some code cleanups and deduplication under
tools/testing/
- "maple_tree: Fix testing for 32bit compiles" from Liam Howlett fixes
a couple of 32-bit issues in tools/testing/radix-tree.c
- "kasan: unify kasan_enabled() and remove arch-specific
implementations" from Sabyrzhan Tasbolatov moves KASAN arch-specific
initialization code into a common arch-neutral implementation
- "mm: remove zpool" from Johannes Weiner removes zspool - an
indirection layer which now only redirects to a single thing
(zsmalloc)
- "mm: task_stack: Stack handling cleanups" from Pasha Tatashin makes a
couple of cleanups in the fork code
- "mm: remove nth_page()" from David Hildenbrand makes rather a lot of
adjustments at various nth_page() callsites, eventually permitting
the removal of that undesirable helper function
- "introduce kasan.write_only option in hw-tags" from Yeoreum Yun
creates a KASAN read-only mode for ARM, using that architecture's
memory tagging feature. It is felt that a read-only mode KASAN is
suitable for use in production systems rather than debug-only
- "mm: hugetlb: cleanup hugetlb folio allocation" from Kefeng Wang does
some tidying in the hugetlb folio allocation code
- "mm: establish const-correctness for pointer parameters" from Max
Kellermann makes quite a number of the MM API functions more accurate
about the constness of their arguments. This was getting in the way
of subsystems (in this case CEPH) when they attempt to improving
their own const/non-const accuracy
- "Cleanup free_pages() misuse" from Vishal Moola fixes a number of
code sites which were confused over when to use free_pages() vs
__free_pages()
- "Add Rust abstraction for Maple Trees" from Alice Ryhl makes the
mapletree code accessible to Rust. Required by nouveau and by its
forthcoming successor: the new Rust Nova driver
- "selftests/mm: split_huge_page_test: split_pte_mapped_thp
improvements" from David Hildenbrand adds a fix and some cleanups to
the thp selftesting code
- "mm, swap: introduce swap table as swap cache (phase I)" from Chris
Li and Kairui Song is the first step along the path to implementing
"swap tables" - a new approach to swap allocation and state tracking
which is expected to yield speed and space improvements. This
patchset itself yields a 5-20% performance benefit in some situations
- "Some ptdesc cleanups" from Matthew Wilcox utilizes the new memdesc
layer to clean up the ptdesc code a little
- "Fix va_high_addr_switch.sh test failure" from Chunyu Hu fixes some
issues in our 5-level pagetable selftesting code
- "Minor fixes for memory allocation profiling" from Suren Baghdasaryan
addresses a couple of minor issues in relatively new memory
allocation profiling feature
- "Small cleanups" from Matthew Wilcox has a few cleanups in
preparation for more memdesc work
- "mm/damon: add addr_unit for DAMON_LRU_SORT and DAMON_RECLAIM" from
Quanmin Yan makes some changes to DAMON in furtherance of supporting
arm highmem
- "selftests/mm: Add -Wunreachable-code and fix warnings" from Muhammad
Anjum adds that compiler check to selftests code and fixes the
fallout, by removing dead code
- "Improvements to Victim Process Thawing and OOM Reaper Traversal
Order" from zhongjinji makes a number of improvements in the OOM
killer: mainly thawing a more appropriate group of victim threads so
they can release resources
- "mm/damon: misc fixups and improvements for 6.18" from SeongJae Park
is a bunch of small and unrelated fixups for DAMON
- "mm/damon: define and use DAMON initialization check function" from
SeongJae Park implement reliability and maintainability improvements
to a recently-added bug fix
- "mm/damon/stat: expose auto-tuned intervals and non-idle ages" from
SeongJae Park provides additional transparency to userspace clients
of the DAMON_STAT information
- "Expand scope of khugepaged anonymous collapse" from Dev Jain removes
some constraints on khubepaged's collapsing of anon VMAs. It also
increases the success rate of MADV_COLLAPSE against an anon vma
- "mm: do not assume file == vma->vm_file in compat_vma_mmap_prepare()"
from Lorenzo Stoakes moves us further towards removal of
file_operations.mmap(). This patchset concentrates upon clearing up
the treatment of stacked filesystems
- "mm: Improve mlock tracking for large folios" from Kiryl Shutsemau
provides some fixes and improvements to mlock's tracking of large
folios. /proc/meminfo's "Mlocked" field became more accurate
- "mm/ksm: Fix incorrect accounting of KSM counters during fork" from
Donet Tom fixes several user-visible KSM stats inaccuracies across
forks and adds selftest code to verify these counters
- "mm_slot: fix the usage of mm_slot_entry" from Wei Yang addresses
some potential but presently benign issues in KSM's mm_slot handling
* tag 'mm-stable-2025-10-01-19-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (372 commits)
mm: swap: check for stable address space before operating on the VMA
mm: convert folio_page() back to a macro
mm/khugepaged: use start_addr/addr for improved readability
hugetlbfs: skip VMAs without shareable locks in hugetlb_vmdelete_list
alloc_tag: fix boot failure due to NULL pointer dereference
mm: silence data-race in update_hiwater_rss
mm/memory-failure: don't select MEMORY_ISOLATION
mm/khugepaged: remove definition of struct khugepaged_mm_slot
mm/ksm: get mm_slot by mm_slot_entry() when slot is !NULL
hugetlb: increase number of reserving hugepages via cmdline
selftests/mm: add fork inheritance test for ksm_merging_pages counter
mm/ksm: fix incorrect KSM counter handling in mm_struct during fork
drivers/base/node: fix double free in register_one_node()
mm: remove PMD alignment constraint in execmem_vmalloc()
mm/memory_hotplug: fix typo 'esecially' -> 'especially'
mm/rmap: improve mlock tracking for large folios
mm/filemap: map entire large folio faultaround
mm/fault: try to map the entire file folio in finish_fault()
mm/rmap: mlock large folios in try_to_unmap_one()
mm/rmap: fix a mlock race condition in folio_referenced_one()
...
Linus Torvalds [Thu, 2 Oct 2025 22:58:05 +0000 (15:58 -0700)]
Merge tag 'slab-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab updates from Vlastimil Babka:
- A new layer for caching objects for allocation and free via percpu
arrays called sheaves.
The aim is to combine the good parts of SLAB (lower-overhead and
simpler percpu caching, compared to SLUB) without the past issues
with arrays for freeing remote NUMA node objects and their flushing.
It also allows more efficient kfree_rcu(), and cheaper object
preallocations for cases where the exact number of objects is
unknown, but an upper bound is.
Currently VMAs and maple nodes are using this new caching, with a
plan to enable it for all caches and remove the complex SLUB fastpath
based on cpu (partial) slabs and this_cpu_cmpxchg_double().
(Vlastimil Babka, with Liam Howlett and Pedro Falcato for the maple
tree changes)
- Re-entrant kmalloc_nolock(), which allows opportunistic allocations
from NMI and tracing/kprobe contexts.
Building on prior page allocator and memcg changes, it will result in
removing BPF-specific caches on top of slab (Alexei Starovoitov)
- Various fixes and cleanups. (Kuan-Wei Chiu, Matthew Wilcox, Suren
Baghdasaryan, Ye Liu)
* tag 'slab-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab: (40 commits)
slab: Introduce kmalloc_nolock() and kfree_nolock().
slab: Reuse first bit for OBJEXTS_ALLOC_FAIL
slab: Make slub local_(try)lock more precise for LOCKDEP
mm: Introduce alloc_frozen_pages_nolock()
mm: Allow GFP_ACCOUNT to be used in alloc_pages_nolock().
locking/local_lock: Introduce local_lock_is_locked().
maple_tree: Convert forking to use the sheaf interface
maple_tree: Add single node allocation support to maple state
maple_tree: Prefilled sheaf conversion and testing
tools/testing: Add support for prefilled slab sheafs
maple_tree: Replace mt_free_one() with kfree()
maple_tree: Use kfree_rcu in ma_free_rcu
testing/radix-tree/maple: Hack around kfree_rcu not existing
tools/testing: include maple-shim.c in maple.c
maple_tree: use percpu sheaves for maple_node_cache
mm, vma: use percpu sheaves for vm_area_struct cache
tools/testing: Add support for changes to slab for sheaves
slab: allow NUMA restricted allocations to use percpu sheaves
tools/testing/vma: Implement vm_refcnt reset
slab: skip percpu sheaves for remote object freeing
...
Linus Torvalds [Thu, 2 Oct 2025 22:17:01 +0000 (15:17 -0700)]
Merge tag 'net-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni:
"Core & protocols:
- Improve drop account scalability on NUMA hosts for RAW and UDP
sockets and the backlog, almost doubling the Pps capacity under DoS
- Optimize the UDP RX performance under stress, reducing contention,
revisiting the binary layout of the involved data structs and
implementing NUMA-aware locking. This improves UDP RX performance
by an additional 50%, even more under extreme conditions
- Add support for PSP encryption of TCP connections; this mechanism
has some similarities with IPsec and TLS, but offers superior HW
offloads capabilities
- Ongoing work to support Accurate ECN for TCP. AccECN allows more
than one congestion notification signal per RTT and is a building
block for Low Latency, Low Loss, and Scalable Throughput (L4S)
- Reorganize the TCP socket binary layout for data locality, reducing
the number of touched cachelines in the fastpath
- Refactor skb deferral free to better scale on large multi-NUMA
hosts, this improves TCP and UDP RX performances significantly on
such HW
- Increase the default socket memory buffer limits from 256K to 4M to
better fit modern link speeds
- Improve handling of setups with a large number of nexthop, making
dump operating scaling linearly and avoiding unneeded
synchronize_rcu() on delete
- Improve bridge handling of VLAN FDB, storing a single entry per
bridge instead of one entry per port; this makes the dump order of
magnitude faster on large switches
- Restore IP ID correctly for encapsulated packets at GSO
segmentation time, allowing GRO to merge packets in more scenarios
- Improve netfilter matching performance on large sets
- Allow bridges to redirect to a backup port when the bridge port is
administratively down
- Introduce MPTCP 'laminar' endpoint that con be used only once per
connection and simplify common MPTCP setups
- Add RCU safety to dst->dev, closing a lot of possible races
- A significant crypto library API for SCTP, MPTCP and IPv6 SR,
reducing code duplication
- Supports pulling data from an skb frag into the linear area of an
XDP buffer
Things we sprinkled into general kernel code:
- Generate netlink documentation from YAML using an integrated YAML
parser
Driver API:
- Support using IPv6 Flow Label in Rx hash computation and RSS queue
selection
- Introduce API for fetching the DMA device for a given queue,
allowing TCP zerocopy RX on more H/W setups
- Make XDP helpers compatible with unreadable memory, allowing more
easily building DevMem-enabled drivers with a unified XDP/skbs
datapath
- Add a new dedicated ethtool callback enabling drivers to provide
the number of RX rings directly, improving efficiency and clarity
in RX ring queries and RSS configuration
- Introduce a burst period for the health reporter, allowing better
handling of multiple errors due to the same root cause
- Support for DPLL phase offset exponential moving average,
controlling the average smoothing factor
Device drivers:
- Add a new Huawei driver for 3rd gen NIC (hinic3)
- Add a new SpacemiT driver for K1 ethernet MAC
- Add a generic abstraction for shared memory communication
devices (dibps)
- Ethernet high-speed NICs:
- nVidia/Mellanox:
- Use multiple per-queue doorbell, to avoid MMIO contention
issues
- support adjacent functions, allowing them to delegate their
SR-IOV VFs to sibling PFs
- support RSS for IPSec offload
- support exposing raw cycle counters in PTP and mlx5
- support for disabling host PFs.
- Intel (100G, ice, idpf):
- ice: support for SRIOV VFs over an Active-Active link
aggregate
- ice: support for firmware logging via debugfs
- ice: support for Earliest TxTime First (ETF) hardware offload
- idpf: support basic XDP functionalities and XSk
- Broadcom (bnxt):
- support Hyper-V VF ID
- dynamic SRIOV resource allocations for RoCE
- Meta (fbnic):
- support queue API, zero-copy Rx and Tx
- support basic XDP functionalities
- devlink health support for FW crashes and OTP mem corruptions
- expand hardware stats coverage to FEC, PHY, and Pause
- Wangxun:
- support ethtool coalesce options
- support for multiple RSS contexts
- Ethernet virtual:
- Macsec:
- replace custom netlink attribute checks with policy-level
checks
- Bonding:
- support aggregator selection based on port priority
- Microsoft vNIC:
- use page pool fragments for RX buffers instead of full pages
to improve memory efficiency
- Ethernet NICs consumer, and embedded:
- Qualcomm: support Ethernet function for IPQ9574 SoC
- Airoha: implement wlan offloading via NPU
- Freescale
- enetc: add NETC timer PTP driver and add PTP support
- fec: enable the Jumbo frame support for i.MX8QM
- Renesas (R-Car S4):
- support HW offloading for layer 2 switching
- support for RZ/{T2H, N2H} SoCs
- Cadence (macb): support TAPRIO traffic scheduling
- TI:
- support for Gigabit ICSS ethernet SoC (icssm-prueth)
- Synopsys (stmmac): a lot of cleanups
- Ethernet PHYs:
- Support 10g-qxgmi phy-mode for AQR412C, Felix DSA and Lynx PCS
driver
- Support bcm63268 GPHY power control
- Support for Micrel lan8842 PHY and PTP
- Support for Aquantia AQR412 and AQR115
- CAN:
- a large CAN-XL preparation work
- reorganize raw_sock and uniqframe struct to minimize memory
usage
- rcar_canfd: update the CAN-FD handling
- WiFi:
- extended Neighbor Awareness Networking (NAN) support
- S1G channel representation cleanup
- improve S1G support
- WiFi drivers:
- Intel (iwlwifi):
- major refactor and cleanup
- Broadcom (brcm80211):
- support for AP isolation
- RealTek (rtw88/89) rtw88/89:
- preparation work for RTL8922DE support
- MediaTek (mt76):
- HW restart improvements
- MLO support
- Qualcomm/Atheros (ath10k):
- GTK rekey fixes
- Bluetooth drivers:
- btusb: support for several new IDs for MT7925
- btintel: support for BlazarIW core
- btintel_pcie: support for _suspend() / _resume()
- btintel_pcie: support for Scorpious, Panther Lake-H484 IDs"
* tag 'net-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1536 commits)
net: stmmac: Add support for Allwinner A523 GMAC200
dt-bindings: net: sun8i-emac: Add A523 GMAC200 compatible
Revert "Documentation: net: add flow control guide and document ethtool API"
octeontx2-pf: fix bitmap leak
octeontx2-vf: fix bitmap leak
net/mlx5e: Use extack in set rxfh callback
net/mlx5e: Introduce mlx5e_rss_params for RSS configuration
net/mlx5e: Introduce mlx5e_rss_init_params
net/mlx5e: Remove unused mdev param from RSS indir init
net/mlx5: Improve QoS error messages with actual depth values
net/mlx5e: Prevent entering switchdev mode with inconsistent netns
net/mlx5: HWS, Generalize complex matchers
net/mlx5: Improve write-combining test reliability for ARM64 Grace CPUs
selftests/net: add tcp_port_share to .gitignore
Revert "net/mlx5e: Update and set Xon/Xoff upon MTU set"
net: add NUMA awareness to skb_attempt_defer_free()
net: use llist for sd->defer_list
net: make softnet_data.defer_count an atomic
selftests: drv-net: psp: add tests for destroying devices
selftests: drv-net: psp: add test for auto-adjusting TCP MSS
...
Linus Torvalds [Thu, 2 Oct 2025 20:13:26 +0000 (13:13 -0700)]
Merge tag 'media/v6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- Added a new V4L2 clock helper
- New camera sensor drivers
- iris: Enable H.264/H.265 encoder support and fixes in iris driver
common code
- camss: add support for new SoC flavors
- venus: add new SoC support
- tc358743: support more infoframe types
- Various fixes, driver improvements and cleanups
* tag 'media/v6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (439 commits)
media: venus: pm_helpers: add fallback for the opp-table
media: qcom: camss: vfe: Fix BPL alignment for QCM2290
media: tuner: xc5000: Fix use-after-free in xc5000_release
media: i2c: tc358743: Fix use-after-free bugs caused by orphan timer in probe
media: b2c2: Fix use-after-free causing by irq_check_work in flexcop_pci_remove
media: vsp1: Export missing vsp1_isp_free_buffer symbol
media: renesas: vsp1: Convert to SYSTEM_SLEEP/RUNTIME_PM_OPS()
media: renesas: ceu: Convert to RUNTIME_PM_OPS()
media: renesas: fdp1: Convert to RUNTIME_PM_OPS()
media: renesas: rcar-vin: Convert to DEFINE_SIMPLE_DEV_PM_OPS()
media: renesas: rcar_drif: Convert to DEFINE_SIMPLE_DEV_PM_OPS()
media: uvcvideo: Mark invalid entities with id UVC_INVALID_ENTITY_ID
media: uvcvideo: Support UVC_CROSXU_CONTROL_IQ_PROFILE
media: uvcvideo: Run uvc_ctrl_init_ctrl for all controls
media: uvcvideo: Shorten the transfer size non compliance message
media: uvcvideo: Do not re-reference dev->udev
media: uvcvideo: Use intf instead of udev for printks
media: uvcvideo: Move video_device under video_queue
media: uvcvideo: Drop stream->mutex
media: uvcvideo: Move MSXU_CONTROL_METADATA definition to header
...
Linus Torvalds [Thu, 2 Oct 2025 19:47:25 +0000 (12:47 -0700)]
Merge tag 'drm-next-2025-10-01' of https://gitlab.freedesktop.org/drm/kernel
Pull drm updates from Dave Airlie:
"cross-subsystem:
- i2c-hid: Make elan touch controllers power on after panel is
enabled
- dt bindings for STM32MP25 SoC
- pci vgaarb: use screen_info helpers
- rust pin-init updates
- add MEI driver for late binding firmware update/load
uapi:
- add ioctl for reassigning GEM handles
- provide boot_display attribute on boot-up devices
core:
- document DRM_MODE_PAGE_FLIP_EVENT
- add vendor specific recovery method to drm device wedged uevent
gem:
- Simplify gpuvm locking
ttm:
- add interface to populate buffers
sched:
- Fix race condition in trace code
atomic:
- Reallow no-op async page flips
display:
- dp: Fix command length
video:
- Improve pixel-format handling for struct screen_info
rust:
- drop Opaque<> from ioctl args
- Alloc:
- BorrowedPage type and AsPageIter traits
- Implement Vmalloc::to_page() and VmallocPageIter
- DMA/Scatterlist:
- Add dma::DataDirection and type alias for dma_addr_t
- Abstraction for struct scatterlist and sg_table
- DRM:
- simplify use of generics
- add DriverFile type alias
- drop Object::SIZE
- Rust:
- pin-init tree merge
- Various methods for AsBytes and FromBytes traits
gpuvm:
- Support madvice in Xe driver
gpusvm:
- fix hmm_pfn_to_map_order usage in gpusvm
bridge:
- Improve and fix ref counting on bridge management
- cdns-dsi: Various improvements to mode setting
- Support Solomon SSD2825 plus DT bindings
- Support Waveshare DSI2DPI plus DT bindings
- Support Content Protection property
- display-connector: Improve DP display detection
- Add support for Radxa Ra620 plus DT bindings
- adv7511: Provide SPD and HDMI infoframes
- it6505: Replace crypto_shash with sha()
- synopsys: Add support for DW DPTX Controller plus DT bindings
- adv7511: Write full Audio infoframe
- ite6263: Support vendor-specific infoframes
- simple: Add support for Realtek RTD2171 DP-to-HDMI plus DT bindings
panel:
- panel-edp: Support mt8189 Chromebooks; Support BOE NV140WUM-N64;
Support SHP LQ134Z1; Fixes
- panel-simple: Support Olimex LCD-OLinuXino-5CTS plus DT bindings
- Support Samsung AMS561RA01
- Support Hydis HV101HD1 plus DT bindings
- ilitek-ili9881c: Refactor mode setting; Add support for Bestar
BSD1218-A101KL68 LCD plus DT bindings
- lvds: Add support for Ampire AMP19201200B5TZQW-T03 to DT bindings
- edp: Add support for additonal mt8189 Chromebook panels
- lvds: Add DT bindings for EDT ETML0700Z8DHA
amdgpu:
- add CRIU support for gem objects
- RAS updates
- VCN SRAM load fixes
- EDID read fixes
- eDP ALPM support
- Documentation updates
- Rework PTE flag generation
- DCE6 fixes
- VCN devcoredump cleanup
- MMHUB client id fixes
- VCN 5.0.1 RAS support
- SMU 13.0.x updates
- Expanded PCIe DPC support
- Expanded VCN reset support
- VPE per queue reset support
- give kernel jobs unique id for tracing
- pre-populate exported buffers
- cyan skillfish updates
- make vbios build number available in sysfs
- userq updates
- HDCP updates
- support MMIO remap page as ttm pool
- JPEG parser updates
- DCE6 DC updates
- use devm for i2c buses
- GPUVM locking updates
- Drop non-DC DCE11 code
- improve fallback handling for pixel encoding
amdkfd:
- SVM/page migration fixes
- debugfs fixes
- add CRIO support for gem objects
- SVM updates
radeon:
- use dev_warn_once in CS parsers
xe:
- add madvise interface
- add DRM_IOCTL_XE_VM_QUERY_MEMORY_RANGE_ATTRS to query VMA count
and memory attributes
- drop L# bank mask reporting from media GT3 on Xe3+.
- add SLPC power_profile sysfs interface
- add configs attribs to add post/mid context-switch commands
- handle firmware reported hardware errors notifying userspace with
device wedged uevent
- use same dir structure across sysfs/debugfs
- cleanup and future proof vram region init
- add G-states and PCI link states to debugfs
- Add SRIOV support for CCS surfaces on Xe2+
- Enable SRIOV PF mode by default on supported platforms
- move flush to common code
- extended core workarounds for Xe2/3
- use DRM scheduler for delayed GT TLB invalidations
- configs improvements and allow VF device enablement
- prep work to expose mmio regions to userspace
- VF migration support added
- prepare GPU SVM for THP migration
- start fixing XE_PAGE_SIZE vs PAGE_SIZE
- add PSMI support for hw validation
- resize VF bars to max possible size according to number of VFs
- Ensure GT is in C0 during resume
- pre-populate exported buffers
- replace xe_hmm with gpusvm
- add more SVM GT stats to debugfs
- improve fake pci and WA kunnit handle for new platform testing
- Test GuC to GuC comms to add debugging
- use attribute groups to simplify sysfs registration
- add Late Binding firmware code to interact with MEI
i915:
- apply multiple JSL/EHL/Gen7/Gen6 workarounds properly
- protect against overflow in active_engine()
- Use try_cmpxchg64() in __active_lookup()
- include GuC registers in error state
- get rid of dev->struct_mutex
- iopoll: generalize read_poll_timout
- lots more display refactoring
- Reject HBR3 in any eDP Panel
- Prune modes for YUV420
- Display Wa fix, additions, and updates
- DP: Fix 2.7 Gbps link training on g4x
- DP: Adjust the idle pattern handling
- DP: Shuffle the link training code a bit
- Don't set/read the DSI C clock divider on GLK
- Enable_psr kernel parameter changes
- Type-C enabled/disconnected dp-alt sink
- Wildcat Lake enabling
- DP HDR updates
- DRAM detection
- wait PSR idle on dsb commit
- Remove FBC modulo 4 restriction for ADL-P+
- panic: refactor framebuffer allocation
nova-core:
- various register!() macro improvements
- minor vbios/firmware fixes/refactoring
- advance firmware boot stages; process Booter and patch signatures
- process GSP and GSP bootloader
- Add r570.144 firmware bindings and update to it
- Move GSP boot code to own module
- Use new pin-init features to store driver's private data in a
single allocation
- Update ARef import from sync::aref
nova-drm:
- Update ARef import from sync::aref
tyr:
- initial driver skeleton for a rust driver for ARM Mali GPUs
- capable of powering up, query metadata and provide it to userspace.
msm:
- GPU and Core:
- in DT bindings describe clocks per GPU type
- GMU bandwidth voting for x1-85
- a623/a663 speedbins
- cleanup some remaining no-iommu leftovers after VM_BIND conversion
- fix GEM obj 32b size truncation
- add missing VM_BIND param validation
- IFPC for x1-85 and a750
- register xml and gen_header.py sync from mesa
- Display:
- add missing bindings for display on SC8180X
- added DisplayPort MST bindings
- conversion from round_rate() to determine_rate()
amdxdna:
- add IOCTL_AMDXDNA_GET_ARRAY
- support user space allocated buffers
- streamline PM interfaces
- Refactoring wrt. hardware contexts
- improve error reporting
nouveau:
- use GSP firmware by default
- improve error reporting
- Pre-populate exported buffers
ast:
- Clean up detection of DRAM config
exynos:
- add DSIM bridge driver support for Exynos7870
- Document Exynos7870 DSIM compatible in dt-binding
panthor:
- Print task/pid on errors
- Add support for Mali G710, G510, G310, Gx15, Gx20, Gx25
- Improve cache flushing
- Fail VM bind if BO has offset
renesas:
- convert to RUNTIME_PM_OPS
rcar-du:
- Make number of lanes configurable
- Use RUNTIME_PM_OPS
- Add support for DSI commands
rocket:
- Add driver for Rockchip NPU plus DT bindings
- Use kfree() and sizeof() correctly
- Test DMA status
rockchip:
- dsi2: Add support for RK3576 plus DT bindings
- Add support for RK3588 DPTX output
tidss:
- Use crtc_ fields for programming display mode
- Remove other drivers from aperture
pixpaper:
- Add support for Mayqueen Pixpaper plus DT bindings
v3d:
- Support querying nubmer of GPU resets for KHR_robustness
stm:
- Clean up logging
- ltdc: Add support support for STM32MP257F-EV1 plus DT bindings
sitronix:
- st7571-i2c: Add support for inverted displays and 2-bit grayscale
tidss:
- Convert to kernel's FIELD_ macros
vesadrm:
- Support 8-bit palette mode
imagination:
- Improve power management
- Add support for TH1520 GPU
- Support Risc-V architectures
v3d:
- Improve job management and locking
vkms:
- Support variants of ARGB8888, ARGB16161616, RGB565, RGB888 and P01x
- Spport YUV with 16-bit components"
* tag 'drm-next-2025-10-01' of https://gitlab.freedesktop.org/drm/kernel: (1455 commits)
drm/amd: Add name to modes from amdgpu_connector_add_common_modes()
drm/amd: Drop some common modes from amdgpu_connector_add_common_modes()
drm/amdgpu: update MODULE_PARM_DESC for freesync_video
drm/amd: Use dynamic array size declaration for amdgpu_connector_add_common_modes()
drm/amd/display: Share dce100_validate_global with DCE6-8
drm/amd/display: Share dce100_validate_bandwidth with DCE6-8
drm/amdgpu: Fix fence signaling race condition in userqueue
amd/amdkfd: enhance kfd process check in switch partition
amd/amdkfd: resolve a race in amdgpu_amdkfd_device_fini_sw
drm/amd/display: Reject modes with too high pixel clock on DCE6-10
drm/amd: Drop unnecessary check in amdgpu_connector_add_common_modes()
drm/amd/display: Only enable common modes for eDP and LVDS
drm/amdgpu: remove the redeclaration of variable i
drm/amdgpu/userq: assign an error code for invalid userq va
drm/amdgpu: revert "rework reserved VMID handling" v2
drm/amdgpu: remove leftover from enforcing isolation by VMID
drm/amdgpu: Add fallback to pipe reset if KCQ ring reset fails
accel/habanalabs: add Infineon version check
accel/habanalabs/gaudi2: read preboot status after recovering from dirty state
accel/habanalabs: add HL_GET_P_STATE passthrough type
...
Linus Torvalds [Thu, 2 Oct 2025 18:37:19 +0000 (11:37 -0700)]
Merge tag 'sound-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"It's been relatively calm in this cycle from the feature POV, but
there were lots of cleanup works in the wide-range of code for
converting with the auto-cleanup macros like guard().
The mostly user-visible changes are the support of a couple of new
compress-offload API extensions, and the support of new ASoC codec /
platform drivers as well as USB-audio quirks.
Here we go with some highlights:
Core:
- Compress-offload API extension for 64bit timestamp support
- Compress-offload API extension for OPUS codec support
- Workaround for PCM locking issue with PREEMPT_RT and softirq
- KCSAN warning fix for ALSA sequencer core
ASoC:
- Continued cleanup works for ASoC core APIs
- Lots of cleanups and conversions of DT bindings
- Substantial maintainance work on the Intel AVS drivers
- Support for Qualcomm Glymur and PM4125, Realtek RT1321, Shanghai
FourSemi FS2104/5S, Texas Instruments PCM1754 and TAS2783A
- Remove support for TI WL1273 for old Nokia systems
USB-audio:
- Support for Tascam US-144mkII, Presonus S1824c support
- More flexible quirk option handling
- Fix for USB MIDI timer bug triggered by fuzzer
Others:
- A large series of cleanups with guard() & co macros over (non-ASoC)
sound drivers (PCI, ISA, HD-audio, USB-audio, drivers, etc)
- TAS5825 HD-audio side-codec support"
* tag 'sound-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (454 commits)
ALSA: usb-audio: don't hardcode gain for output channel of Presonus Studio
ALSA: usb-audio: add the initial mix for Presonus Studio 1824c
ALSA: doc: improved docs about quirk_flags in snd-usb-audio
ALSA: usb-audio: make param quirk_flags change-able in runtime
ALSA: usb-audio: improve module param quirk_flags
ALSA: usb-audio: add two-way convert between name and bit for QUIRK_FLAG_*
ALSA: usb-audio: fix race condition to UAF in snd_usbmidi_free
ALSA: usb-audio: add mono main switch to Presonus S1824c
ALSA: compress: document 'chan_map' member in snd_dec_opus
ASoC: cs35l56: Add support for CS35L56 B2 silicon
ASoC: cs35l56: Set fw_regs table after getting REVID
ALSA: hda/realtek: Add quirk for HP Spectre 14t-ea100
ASoc: tas2783A: Fix an error code in probe()
ASoC: tlv320aic3x: Fix class-D initialization for tlv320aic3007
ASoC: qcom: sc8280xp: use sa8775p/ subdir for QCS9100 / QCS9075
ASoC: stm32: sai: manage context in set_sysclk callback
ASoC: renesas: msiof: ignore 1st FSERR
ASoC: renesas: msiof: Add note for The possibility of R/L opposite Capture
ASoC: renesas: msiof: setup both (Playback/Capture) in the same time
ASoC: renesas: msiof: tidyup DMAC stop timing
...
Linus Torvalds [Thu, 2 Oct 2025 17:16:56 +0000 (10:16 -0700)]
Merge tag 'for-6.18/block-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block updates from Jens Axboe:
- NVMe pull request via Keith:
- FC target fixes (Daniel)
- Authentication fixes and updates (Martin, Chris)
- Admin controller handling (Kamaljit)
- Target lockdep assertions (Max)
- Keep-alive updates for discovery (Alastair)
- Suspend quirk (Georg)
- MD pull request via Yu:
- Add support for a lockless bitmap.
A key feature for the new bitmap are that the IO fastpath is
lockless. If a user issues lots of write IO to the same bitmap
bit in a short time, only the first write has additional overhead
to update bitmap bit, no additional overhead for the following
writes.
By supporting only resync or recover written data, means in the
case creating new array or replacing with a new disk, there is no
need to do a full disk resync/recovery.
- Switch ->getgeo() and ->bios_param() to using struct gendisk rather
than struct block_device.
- Rust block changes via Andreas. This series adds configuration via
configfs and remote completion to the rnull driver. The series also
includes a set of changes to the rust block device driver API: a few
cleanup patches, and a few features supporting the rnull changes.
The series removes the raw buffer formatting logic from
`kernel::block` and improves the logic available in `kernel::string`
to support the same use as the removed logic.
- floppy arch cleanups
- Reduce the number of dereferencing needed for ublk commands
- Restrict supported sockets for nbd. Mostly done to eliminate a class
of issues perpetually reported by syzbot, by using nonsensical socket
setups.
- A few s390 dasd block fixes
- Fix a few issues around atomic writes
- Improve DMA interation for integrity requests
- Improve how iovecs are treated with regards to O_DIRECT aligment
constraints.
We used to require each segment to adhere to the constraints, now
only the request as a whole needs to.
- Clean up and improve p2p support, enabling use of p2p for metadata
payloads
- Improve locking of request lookup, using SRCU where appropriate
- Use page references properly for brd, avoiding very long RCU sections
- Fix ordering of recursively submitted IOs
- Clean up and improve updating nr_requests for a live device
- Various fixes and cleanups
* tag 'for-6.18/block-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (164 commits)
s390/dasd: enforce dma_alignment to ensure proper buffer validation
s390/dasd: Return BLK_STS_INVAL for EINVAL from do_dasd_request
ublk: remove redundant zone op check in ublk_setup_iod()
nvme: Use non zero KATO for persistent discovery connections
nvmet: add safety check for subsys lock
nvme-core: use nvme_is_io_ctrl() for I/O controller check
nvme-core: do ioccsz/iorcsz validation only for I/O controllers
nvme-core: add method to check for an I/O controller
blk-cgroup: fix possible deadlock while configuring policy
blk-mq: fix null-ptr-deref in blk_mq_free_tags() from error path
blk-mq: Fix more tag iteration function documentation
selftests: ublk: fix behavior when fio is not installed
ublk: don't access ublk_queue in ublk_unmap_io()
ublk: pass ublk_io to __ublk_complete_rq()
ublk: don't access ublk_queue in ublk_need_complete_req()
ublk: don't access ublk_queue in ublk_check_commit_and_fetch()
ublk: don't pass ublk_queue to ublk_fetch()
ublk: don't access ublk_queue in ublk_config_io_buf()
ublk: don't access ublk_queue in ublk_check_fetch_buf()
ublk: pass q_id and tag to __ublk_check_and_get_req()
...
Linus Torvalds [Thu, 2 Oct 2025 16:56:23 +0000 (09:56 -0700)]
Merge tag 'for-6.18/io_uring-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring updates from Jens Axboe:
- Store ring provided buffers locally for the users, rather than stuff
them into struct io_kiocb.
These types of buffers must always be fully consumed or recycled in
the current context, and leaving them in struct io_kiocb is hence not
a good ideas as that struct has a vastly different life time.
Basically just an architecture cleanup that can help prevent issues
with ring provided buffers in the future.
- Support for mixed CQE sizes in the same ring.
Before this change, a CQ ring either used the default 16b CQEs, or it
was setup with 32b CQE using IORING_SETUP_CQE32. For use cases where
a few 32b CQEs were needed, this caused everything else to use big
CQEs. This is wasteful both in terms of memory usage, but also memory
bandwidth for the posted CQEs.
With IORING_SETUP_CQE_MIXED, applications may use request types that
post both normal 16b and big 32b CQEs on the same ring.
- Add helpers for async data management, to make it harder for opcode
handlers to mess it up.
- Add support for multishot for uring_cmd, which ublk can use. This
helps improve efficiency, by providing a persistent request type that
can trigger multiple CQEs.
- Add initial support for ring feature querying.
We had basic support for probe operations, but the API isn't great.
Rather than expand that, add support for QUERY which is easily
expandable and can cover a lot more cases than the existing probe
support. This will help applications get a better idea of what
operations are supported on a given host.
- zcrx improvements from Pavel:
- Improve refill entry alignment for better caching
- Various cleanups, especially around deduplicating normal
memory vs dmabuf setup.
- Generalisation of the niov size (Patch 12). It's still hard
coded to PAGE_SIZE on init, but will let the user to specify
the rx buffer length on setup.
- Syscall / synchronous bufer return. It'll be used as a slow
fallback path for returning buffers when the refill queue is
full. Useful for tolerating slight queue size misconfiguration
or with inconsistent load.
- Accounting more memory to cgroups.
- Additional independent cleanups that will also be useful for
mutli-area support.
- Various fixes and cleanups
* tag 'for-6.18/io_uring-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (68 commits)
io_uring/cmd: drop unused res2 param from io_uring_cmd_done()
io_uring: fix nvme's 32b cqes on mixed cq
io_uring/query: cap number of queries
io_uring/query: prevent infinite loops
io_uring/zcrx: account niov arrays to cgroup
io_uring/zcrx: allow synchronous buffer return
io_uring/zcrx: introduce io_parse_rqe()
io_uring/zcrx: don't adjust free cache space
io_uring/zcrx: use guards for the refill lock
io_uring/zcrx: reduce netmem scope in refill
io_uring/zcrx: protect netdev with pp_lock
io_uring/zcrx: rename dma lock
io_uring/zcrx: make niov size variable
io_uring/zcrx: set sgt for umem area
io_uring/zcrx: remove dmabuf_offset
io_uring/zcrx: deduplicate area mapping
io_uring/zcrx: pass ifq to io_zcrx_alloc_fallback()
io_uring/zcrx: check all niovs filled with dma addresses
io_uring/zcrx: move area reg checks into io_import_area
io_uring/zcrx: don't pass slot to io_zcrx_create_area
...
Linus Torvalds [Thu, 2 Oct 2025 15:31:44 +0000 (08:31 -0700)]
Merge tag 'kcsan-20250929-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/melver/linux
Pull Kernel Concurrency Sanitizer (KCSAN) update from Marco Elver:
- Replace deprecated strcpy() with strscpy()
* tag 'kcsan-20250929-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/melver/linux:
kcsan: test: Replace deprecated strcpy() with strscpy()
Linus Torvalds [Thu, 2 Oct 2025 03:58:51 +0000 (20:58 -0700)]
Merge tag 'kbuild-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild updates from Nathan Chancellor:
- Extend modules.builtin.modinfo to include module aliases from
MODULE_DEVICE_TABLE for builtin modules so that userspace tools (such
as kmod) can verify that a particular module alias will be handled by
a builtin module
- Bump the minimum version of LLVM for building the kernel to 15.0.0
- Upgrade several userspace API checks in headers_check.pl to errors
- Unify and consolidate CONFIG_WERROR / W=e handling
- Turn assembler and linker warnings into errors with CONFIG_WERROR /
W=e
- Respect CONFIG_WERROR / W=e when building userspace programs
(userprogs)
- Enable -Werror unconditionally when building host programs
(hostprogs)
- Support copy_file_range() and data segment alignment in gen_init_cpio
to improve performance on filesystems that support reflinks such as
btrfs and XFS
- Miscellaneous small changes to scripts and configuration files
* tag 'kbuild-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: (47 commits)
modpost: Initialize builtin_modname to stop SIGSEGVs
Documentation: kbuild: note CONFIG_DEBUG_EFI in reproducible builds
kbuild: vmlinux.unstripped should always depend on .vmlinux.export.o
modpost: Create modalias for builtin modules
modpost: Add modname to mod_device_table alias
scsi: Always define blogic_pci_tbl structure
kbuild: extract modules.builtin.modinfo from vmlinux.unstripped
kbuild: keep .modinfo section in vmlinux.unstripped
kbuild: always create intermediate vmlinux.unstripped
s390: vmlinux.lds.S: Reorder sections
KMSAN: Remove tautological checks
objtool: Drop noinstr hack for KCSAN_WEAK_MEMORY
lib/Kconfig.debug: Drop CLANG_VERSION check from DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT
riscv: Remove ld.lld version checks from many TOOLCHAIN_HAS configs
riscv: Unconditionally use linker relaxation
riscv: Remove version check for LTO_CLANG selects
powerpc: Drop unnecessary initializations in __copy_inst_from_kernel_nofault()
mips: Unconditionally select ARCH_HAS_CURRENT_STACK_POINTER
arm64: Remove tautological LLVM Kconfig conditions
ARM: Clean up definition of ARM_HAS_GROUP_RELOCS
...
Linus Torvalds [Thu, 2 Oct 2025 03:41:10 +0000 (20:41 -0700)]
Merge tag 'linux_kselftest-next-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest updates from Shuah Khan:
- Fix watchdog test to exit when device doesn't support keep-alive
- Fix missing header build complaints during out of tree build
- A few minor fixes to git ignore
- MAINTAINERS file change to update dma_map_benchmark
* tag 'linux_kselftest-next-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
MAINTAINERS: add myself and Barry to dma_map_benchmark maintainers
selftests/kexec: Ignore selftest binary
selftests: always install UAPI headers to the correct directory
selftests/kselftest_harness: Add harness-selftest.expected to TEST_FILES
selftests: watchdog: skip ping loop if WDIOF_KEEPALIVEPING not supported
Linus Torvalds [Thu, 2 Oct 2025 02:15:11 +0000 (19:15 -0700)]
Merge tag 'linux_kselftest-kunit-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kunit updates from Shuah Khan:
- New parameterized test features
KUnit parameterized tests supported two primary methods for getting
parameters:
- Defining custom logic within a generate_params() function.
- Using the KUNIT_ARRAY_PARAM() and KUNIT_ARRAY_PARAM_DESC() macros
with a pre-defined static array and passing the created
*_gen_params() to KUNIT_CASE_PARAM().
These methods present limitations when dealing with dynamically
generated parameter arrays, or in scenarios where populating
parameters sequentially via generate_params() is inefficient or
overly complex.
These limitations are fixed with a parameterized test method
- Fix issues in kunit build artifacts cleanup
- Fix parsing skipped test problem in kselftest framework
- Enable PCI on UML without triggering WARN()
- a few other fixes and adds support for new configs such as MIPS
* tag 'linux_kselftest-kunit-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: Extend kconfig help text for KUNIT_UML_PCI
rust: kunit: allow `cfg` on `test`s
kunit: qemu_configs: Add MIPS configurations
kunit: Enable PCI on UML without triggering WARN()
Documentation: kunit: Document new parameterized test features
kunit: Add example parameterized test with direct dynamic parameter array setup
kunit: Add example parameterized test with shared resource management using the Resource API
kunit: Enable direct registration of parameter arrays to a KUnit test
kunit: Pass parameterized test context to generate_params()
kunit: Introduce param_init/exit for parameterized test context management
kunit: Add parent kunit for parameterized test context
kunit: tool: Accept --raw_output=full as an alias of 'all'
kunit: tool: Parse skipped tests from kselftest.h
kunit: Always descend into kunit directory during build
Linus Torvalds [Thu, 2 Oct 2025 00:47:16 +0000 (17:47 -0700)]
Merge tag 'asm-generic-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann:
"Two small patches for the asm-generic header files: Varad Gautam
improves the MMIO tracing to be faster when the tracepoints are built
into the kernel but disabled, while Qi Xi updates the DO_ONCE logic so
that clearing the WARN_ONCE() flags does not change the other DO_ONCE
users"
* tag 'asm-generic-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
once: fix race by moving DO_ONCE to separate section
asm-generic/io.h: Skip trace helpers if rwmmio events are disabled
Linus Torvalds [Thu, 2 Oct 2025 00:41:15 +0000 (17:41 -0700)]
Merge tag 'soc-arm-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC updates from Arnd Bergmann:
"The at91 power management code and the TI AM33 platform each get a few
updates for robustness, the other changes are just minor cleanups"
* tag 'soc-arm-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: versatile: clock: convert from round_rate() to determine_rate()
ARM: rockchip: remove REGULATOR conditional to PM
ARM: at91: pm: Remove 2.5V regulator
ARM: OMAP2+: clock: convert from round_rate() to determine_rate()
ARM: OMAP1: clock: convert from round_rate() to determine_rate()
ARM: mach-hpe: Rework support and directory structure
arm: omap2: use string choices helper
ARM: OMAP2+: pm33xx-core: ix device node reference leaks in amx3_idle_init
ARM: OMAP2+: use IS_ERR_OR_NULL() helper
ARM: AM33xx: Implement TI advisory 1.0.36 (EMU0/EMU1 pins state on reset)
ARM: at91: pm: save and restore ACR during PLL disable/enable
ARM: at91: pm: fix MCKx restore routine
ARM: at91: pm: fix .uhp_udp_mask specification for current SoCs
ARM: shmobile: rcar-gen2: Use SZ_256K definition
Linus Torvalds [Thu, 2 Oct 2025 00:32:51 +0000 (17:32 -0700)]
Merge tag 'soc-drivers-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann:
"Lots of platform specific updates for Qualcomm SoCs, including a new
TEE subsystem driver for the Qualcomm QTEE firmware interface.
Added support for the Apple A11 SoC in drivers that are shared with
the M1/M2 series, among more updates for those.
Smaller platform specific driver updates for Renesas, ASpeed,
Broadcom, Nvidia, Mediatek, Amlogic, TI, Allwinner, and Freescale
SoCs.
Driver updates in the cache controller, memory controller and reset
controller subsystems.
SCMI firmware updates to add more features and improve robustness.
This includes support for having multiple SCMI providers in a single
system.
TEE subsystem support for protected DMA-bufs, allowing hardware to
access memory areas that managed by the kernel but remain inaccessible
from the CPU in EL1/EL0"
* tag 'soc-drivers-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (139 commits)
soc/fsl/qbman: Use for_each_online_cpu() instead of for_each_cpu()
soc: fsl: qe: Drop legacy-of-mm-gpiochip.h header from GPIO driver
soc: fsl: qe: Change GPIO driver to a proper platform driver
tee: fix register_shm_helper()
pmdomain: apple: Add "apple,t8103-pmgr-pwrstate"
dt-bindings: spmi: Add Apple A11 and T2 compatible
serial: qcom-geni: Load UART qup Firmware from linux side
spi: geni-qcom: Load spi qup Firmware from linux side
i2c: qcom-geni: Load i2c qup Firmware from linux side
soc: qcom: geni-se: Add support to load QUP SE Firmware via Linux subsystem
soc: qcom: geni-se: Cleanup register defines and update copyright
dt-bindings: qcom: se-common: Add QUP Peripheral-specific properties for I2C, SPI, and SERIAL bus
Documentation: tee: Add Qualcomm TEE driver
tee: qcom: enable TEE_IOC_SHM_ALLOC ioctl
tee: qcom: add primordial object
tee: add Qualcomm TEE driver
tee: increase TEE_MAX_ARG_SIZE to 4096
tee: add TEE_IOCTL_PARAM_ATTR_TYPE_OBJREF
tee: add TEE_IOCTL_PARAM_ATTR_TYPE_UBUF
tee: add close_context to TEE driver operation
...
Linus Torvalds [Thu, 2 Oct 2025 00:25:57 +0000 (17:25 -0700)]
Merge tag 'soc-defconfig-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC defconfig updates from Arnd Bergmann:
"Only a small set up updates, enabling a few drivers for Artpec, THead,
Renesas and Broadcom chips, and cleaning out some Qualcomm options
that were removed previously"
* tag 'soc-defconfig-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: configs: u8500: Set NFC_SHDLC as built-in
riscv: defconfig: Enable MMP_PDMA support for SpacemiT K1 SoC
riscv: defconfig: run savedefconfig to reorder it
ARM: defconfig: Remove obsolete CONFIG_USB_EHCI_MSM
arm64: defconfig: Enable Marvell WiFi-Ex USB driver
arm64: defconfig: Enable BCM2712 on-chip pin controller driver
arm64: defconfig: Enable Axis ARTPEC SoC
ARM: s3c6400_defconfig: Drop MTD_NAND_S3C2410
ARM: defconfig: pxa: Remove duplicate CONFIG_USB_GPIO_VBUS entry
ARM: defconfig: cleanup orphaned CONFIGs
arm64: defconfig: enable i.MX91 pinctrl
arm64: defconfig: Enable X1P42100 GPUCC driver
arm64: defconfig: Enable QCS615 clock controllers
arm64: defconfig: Enable the RZ/V2H(P) RSPI driver
arm64: defconfig: Enable Renesas RZ/T2H serial SCI
Linus Torvalds [Thu, 2 Oct 2025 00:19:38 +0000 (17:19 -0700)]
Merge tag 'soc-dt-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC dt updates from Arnd Bergmann:
"There are five sets of new SoCs that get added in existing families,
all of them being either upgrades or cut-down versions of the older
chips:
- Apple M2 Pro, M2 Max and M2 Ultra, used in the 2022/2023 generation
of high-end workstations and laptops from Apple. Linux has been
working on these for a while but stil requires patches.
- Axis Artpec8 is an Armv8 chip based on Samsung Exynos design,
unlike the earlier Armv7 Artpec6 from the same company that was
part of a separate family of chips.
- NXP i.MX91 is a cut-down version of i.MX93, using only a single
Cortex-A55 core.
- Qualcomm Lemans Auto is a variant of the Lemans SoC that was
originally merged under the sa8775p name, the differences being
mostly the firmware configuration of the platform.
- Four new Renesas SoCs RZ/T2H (r9a09g077m44), RZ/N2H (r9a09g087m44),
RZ/T2H (r9a09g077), and RZ/N2H (r9a09g087) are all industrial
bedded SoCs based on Cortex-A55 cores
In total, there are 65 new machines, including:
- Industrial embedded system and single-board computers based on NXP,
Allwinner, TI, Rockchips, Marvell, Xilinx Spacemit, Starfive chips.
- Reference boards for the newly added Renesas, Qualcomm, NXP and
Axis ARMv8 chips as well as Microchip's MPFS RISC-V SoC
- Laptops and Workstations using Apple M2 and Qualcomm Snapdragon X1
chips.
- Several Samsung phones using Qualcomm Snapdragon chips
- Set-top boxes based on Allwinner H313
- Five BMC boards using 32-bit ASpeed SoCs
- Three network routers using IXP4xx (ARMv5!) and Broadcom bcm4708
(ARMv7) SoCs
Two machines get phased out because they were available only in small
quantities but never made it into products: one STi407 based reference
board, and a Snapdragon 845 based Chromebook.
Aside from the newly added machines, a lot of work went into improving
hardware support on the existing machines and cleaning up contents for
validation"
Linus Torvalds [Thu, 2 Oct 2025 00:10:27 +0000 (17:10 -0700)]
Merge tag 'soc-newsoc-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull new SoC support from Arnd Bergmann:
"Pinkesh Vaghela adds support for the ESWIN EIC7700 SoC consisting of
SiFive Quad-Core P550 CPU cluster and the first development board that
uses it, the SiFive HiFive Premier P550 [1].
This adds initial device tree and also adds ESWIN architecture
support.
Boot-tested using intiramfs with Linux v6.17-rc3 on HiFive Premier
P550 board using U-Boot 2024.01 and OpenSBI 1.4"
Link: https://lore.kernel.org/linux-riscv/20250825132427.1618089-1-pinkesh.vaghela@einfochips.com/
* tag 'soc-newsoc-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
riscv: dts: eswin: add HiFive Premier P550 board device tree
riscv: dts: add initial support for EIC7700 SoC
dt-bindings: interrupt-controller: Add ESWIN EIC7700 PLIC
dt-bindings: riscv: Add SiFive HiFive Premier P550 board
riscv: Add Kconfig option for ESWIN platforms
dt-bindings: riscv: Add SiFive P550 CPU compatible
- Convert of_msi_map_id() callers to of_msi_xlate()
DT bindings:
- Convert multiple text board bindings to DT schema format
- Add bindings for synaptics,synaptics_i2c touchscreen controller,
innolux,n133hse-ea1 and nlt,nl12880bc20-spwg-24 displays, and NXP
vf610 reboot controller
- Add new Arm Cortex-A320/A520AE/A720AE and C1-Nano/Pro/Premium/Ultra
CPUs. Add missing Applied Micro CPU compatibles. Add pu-supply and
fsl,soc-operating-points properties for CPU nodes.
- Add QCom Glymur PDC and tegra264-agic interrupt controllers
- Add samsung,exynos8890-mali GPU to Arm Mali Midgard
- Drop Samsung S3C2410 display related bindings
- Allow separate DP lane and AUX connections in dp-connector
- Add some missing, undocumented vendor prefixes
- Add missing '#address-cells' properties in interrupt controller
bindings which dtc now warns about
- Drop duplicate socfpga-sdram-edac.txt, moxa,moxart-watchdog.txt,
fsl/mpic.txt, ti,opa362.txt, and cavium-thunder2.txt legacy text
bindings which are already covered by existing schemas.
- Various binding fixes for Mediatek platforms in mailbox, regulator,
pinctrl, timer, and display
- Drop work-around for yamllint quoting of values containing ','
- Various spelling, typo, grammar, and duplicated words fixes in DT
bindings and docs
- Add binding guidelines for defining properties at top level of
schemas, lack of node name ABI, and usage of simple-mfd"
* tag 'devicetree-for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (81 commits)
dt-bindings: arm: altera: Drop socfpga-sdram-edac.txt
dt-bindings: gpu: Convert nvidia,gk20a to DT schema
dt-bindings: rng: sparc_sun_oracle_rng: convert to DT schema
dt-bindings: vendor-prefixes: update regex for properties without a prefix
dt-bindings: display: bridge: convert megachips-stdpxxxx-ge-b850v3-fw.txt to yaml
scripts: dt_to_config: fix grammar and a typo in --help text
dt-bindings: fix spelling, typos, grammar, duplicated words
docs: dt: fix grammar and spelling
of: base: Add of_get_next_child_with_prefix() stub
dt-bindings: trivial-devices: Add compatible string synaptics,synaptics_i2c
dt-bindings: soc: mediatek: pwrap: Add power-domains property
dt-bindings: pinctrl: mt65xx: Allow gpio-line-names
dt-bindings: media: Convert MediaTek mt8173-vpu bindings to DT schema
dt-bindings: arm: mediatek: Support mt8183-audiosys variant
dt-bindings: mailbox: mediatek,gce-mailbox: Make clock-names optional
dt-bindings: regulator: mediatek,mt6331: Add missing compatible
dt-bindings: regulator: mediatek,mt6331: Fix various regulator names
dt-bindings: regulator: mediatek,mt6332-regulator: Add missing compatible
dt-bindings: pinctrl: mediatek,mt7622-pinctrl: Add missing base reg
dt-bindings: pinctrl: mediatek,mt7622-pinctrl: Add missing pwm_ch7_2
...
Linus Torvalds [Wed, 1 Oct 2025 23:33:14 +0000 (16:33 -0700)]
Merge tag 'thermal-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These are mostly thermal driver updates, including new thermal drivers
for Renesas RZ/G3S and Renesas RZ/G3E SoCs, a new power slider
platform feature support in the Intel int340x thermal driver, a new
Tegra114- specific SOCTHERM driver and more.
There is also a Step-wise thermal governor update allowing it to start
reducing cooling somewhat earlier if the temperature of the given
thermal zone is falling down and a thermal testing code cleanup.
Specifics:
- Add new thermal driver for the Renesas RZ/G3S SoC (Claudiu Beznea)
- Add new thermal driver for the Renesas RZ/G3E SoC (John Madieu)
- Add support for new platform power slider feature to the Intel
int340x driver (Srinivas Pandruvada).
- Add new Tegra114-specific SOCTHERM driver and document Tegra114
SOCTHERM Thermal Management System in DT bindings (Svyatoslav
Ryhel)
- Add temperature sensor channel to thermal-generic-adc (Svyatoslav
Ryhel)
- Add support for per-SoC default trim values to the Renesas
rcar_gen3 thermal driver, use it for adding R-Car V4H default trim
values, fix a comment typo in that driver and document Gen4 support
in its Kconfig entry (Marek Vasut)
- Fix mapping SoCs to generic Gen4 entry in the Renesas rcar_gen3
thermal driver (Wolfram Sang)
- Document the TSU unit in the r9a08g045-tsu and r9a09g047-tsu DT
bindings (Claudiu Beznea, John Madieu)
- Make LMH select QCOM_SCM and add missing IRQ includes to the
qcom/lmh thermal driver (Dmitry Baryshkov)
- Fix incorrect error message in the qcom/lmh thermal driver (Sumeet
Pawnikar)
- Document the Glymur temperature sensor in qcom-tsens thermal DT
bindings (Manaf Meethalavalappu Pallikunhi)
- Make k3_j72xx_bandgap thermal driver register the thermal sensor
with hwmon (Michael Walle)
- Tighten GRF requirements in the rockchip thermal DT bindings,
silence a GRF warning in the rockchip thermal driver and unify
struct rockchip_tsadc_chip format in it (Sebastian Reichel)
- Update the Step-wise thermal governor to allow it to reduce the
cooling level earlier if thermal zone temperature is dropping and
clean it up (Rafael Wysocki)
- Clean up the thermal testing code (Rafael Wysocki)
- Assorted cleanups of thermal drivers (Jiapeng Chong, Salah Triki,
Osama Abdelkader)"
* tag 'thermal-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (37 commits)
thermal/drivers/renesas/rzg3e: Fix add thermal driver for the Renesas RZ/G3E SoC
dt-bindings: thermal: qcom-tsens: Document the Glymur temperature Sensor
thermal/drivers/renesas/rzg3e: Add thermal driver for the Renesas RZ/G3E SoC
dt-bindings: thermal: r9a09g047-tsu: Document the TSU unit
thermal/drivers/thermal-generic-adc: Add temperature sensor channel
dt-bindings: thermal: rockchip: Tighten grf requirements
thermal/drivers/rockchip: Shut up GRF warning
thermal/drivers/rockchip: Unify struct rockchip_tsadc_chip format
thermal/drivers/renesas/rzg3s: Add thermal driver for the Renesas RZ/G3S SoC
dt-bindings: thermal: r9a08g045-tsu: Document the TSU unit
thermal/drivers/k3_j72xx_bandgap: Register sensors with hwmon
thermal/drivers/rcar_gen3: Fix mapping SoCs to generic Gen4 entry
thermal/drivers/tegra: Add Tegra114 specific SOCTHERM driver
dt-bindings: thermal: add Tegra114 soctherm header
thermal/drivers/tegra/soctherm-fuse: Prepare calibration for Tegra114 support
dt-bindings: thermal: Document Tegra114 SOCTHERM Thermal Management System
thermal/drivers/rcar_gen3: Document Gen4 support in Kconfig entry
thermal/drivers/rcar_gen3: Fix comment typo
drivers/thermal/qcom/lmh: Fix incorrect error message
thermal/drivers/qcom/lmh: Add missing IRQ includes
...
Linus Torvalds [Wed, 1 Oct 2025 23:24:50 +0000 (16:24 -0700)]
Merge tag 'acpi-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These include an ACPICA update (upstream revision 20250807 with a few
fixes on top), fixes and cleanups of the ACPI processor driver, fixes
and cleanups of the ACPI properties management code, one more ACPI IRQ
resource management quirk, one more ACPI backlight quirk, an ACPI
device enumeration quirk related to _DEP, a power resource quirk
related to WWAN modem for HP EliteBook 855 G7, ACPI SPCR table parser
extensions, an ACPI APEI EINJ driver update allowing it to handle more
address types, and several assorted cleanups of ACPI drivers and PNP
code.
- Rearrange local variable definition involving #ifdef in ACPICA to
avoid using uninitialized variables (Zhe Qiao)
- Allow ACPICA to skip Global Lock initialization (Huacai Chen)
- Apply ACPI_NONSTRING in more places in ACPICA and fix two
regressions related to incorrect ACPI_NONSTRING usage (Ahmed Salem)
- Fix printing CDAT table header when dissasebling CDAT AML (Ahmed
Salem)
- Use acpi_ds_clear_operands() in acpi_ds_call_control_method() in
ACPICA (Hans de Goede)
- Update dsmethod.c in ACPICA to address unused variable warning
(Saket Dumbre)
- Print error messages in ACPICA for too few or too many control
method arguments (Saket Dumbre)
- Update ACPICA version to 20250807 (Saket Dumbre)
- Fix largest possible resource descriptor index in ACPICA (Dmitry
Antipov)
- Add Back-Invalidate restriction to CXL Window for CEDT in ACPICA
(Davidlohr Bueso)
- Add the package type to acceptable Arg3 types for _DSM in ACPICA
because ACPI_TYPE_ANY does not cover it (Saket Dumbre)
- Fix return values in ap_is_valid_checksum() in the acpidump utility
in ACPICA (Kaushlendra Kumar)
- Add Intel CVS ACPI HIDs to acpi_ignore_dep_ids[] so it is not
regarded as real dependency (Hans de Goede)
- Use ACPI_FREE() for freeing an ACPI object in description_show() in
the ACPI sysfs-related code (Kaushlendra Kumar)
- Fix memory leak in the ACPI processor idle driver registration
error code path and optimize ACPI idle driver registration (Huisong
Li, Rafael Wysocki)
- Add module import namespace to the ACPI processor idle driver
(Rafael Wysocki)
- Eliminate static variable flat_state_cnt from the ACPI processor
idle driver (Rafael Wysocki)
- Release cpufreq policy references using __free() in the ACPI
processor thremal driver (Zihuan Zhang)
- Remove unused empty stubs of some functions and rearrange function
declarations in a header file in the ACPI processor driver (Huisong
Li)
- Redefine two functions as void in the ACPI processor driver (Rafael
Wysocki)
- Stop exposing global variable acpi_idle_driver in the ACPI
processor driver (Huisong Li)
- Fix ACPI buffer properties extraction for data-only subnodes
represented as _DSD-equivalent packages (Rafael Wysocki)
- Fix handling of ACPI data-only subnodes represented as
_DSD-equivalent packages in the case when they are embedded in
larger _DSD-equivalent packages and clean up
acpi_nondev_subnode_extract() (Rafael Wysocki)
- Skip ACPI IRQ override on ASUS Vivobook Pro N6506CU (Sam van
Kampen)
- Add power resource init function and use it for introducing an HP
EliteBook 855 G7 WWAN modem power resource quirk (Maciej Szmigiero)
- Add support for DBG2 RISC-V SBI port subtype and Precise Baud Rate
field to the ACPI SPCR table parser (Chen Pei)
- Eliminate a dummy local variable from the ACPI thermal driver
(Rafael Wysocki)
- Fold two simple functions into their only caller in the ACPI fan
driver (Rafael Wysocki)
- Force native backlight on Lenovo 82K8 in the ACPI backlight (video)
driver (Mario Limonciello)
- Add missing sysfs_remove_group() for ACPI_TAD_RT (Daniel Tang)
- Skip PRM handlers with NULL handler_address or NULL VA in the ACPI
PRM driver (Shang song)
- Remove redundant assignments in erst_dbg_{ioctl|write}() in the
ACPI APEI driver (Thorsten Blum)
- Allow the ACPI APEI EINJ to handle more types of addresses than
just MMIO (Jiaqi Yan)
- Use str_low_high() helper in two places in the ACPI code (Chelsy
Ratnawat)
- Use str_plural() to simplify the PNP code (Xichao Zhao)
- Fix signedness issues in read/write helpers in the ACPI AML
debugger interface (Amir Mohammad)"
* tag 'acpi-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (50 commits)
ACPI: debug: fix signedness issues in read/write helpers
ACPI: processor: Do not expose global variable acpi_idle_driver
ACPI: SPCR: Support Precise Baud Rate field
ACPI: processor: idle: Redefine two functions as void
ACPI: processor: Update cpuidle driver check in __acpi_processor_start()
ACPI: processor: idle: Rearrange declarations in header file
ACPI: processor: Remove unused empty stubs of some functions
ACPI: property: Adjust failure handling in acpi_nondev_subnode_extract()
ACPI: property: Do not pass NULL handles to acpi_attach_data()
ACPI: property: Add code comments explaining what is going on
ACPI: property: Disregard references in data-only subnode lists
ACPI: property: Fix buffer properties extraction for subnodes
ACPI: SPCR: Add support for DBG2 RISC-V SBI port subtype
ACPI: APEI: EINJ: Allow more types of addresses except MMIO
ACPI: APEI: Remove redundant assignments in erst_dbg_{ioctl|write}()
ACPICA: acpidump: fix return values in ap_is_valid_checksum()
ACPICA: ACPI_TYPE_ANY does not include the package type
ACPICA: CEDT: Add Back-Invalidate restriction to CXL Window
ACPICA: Fix largest possible resource descriptor index
ACPICA: Update version to 20250807
...
Linus Torvalds [Wed, 1 Oct 2025 23:08:37 +0000 (16:08 -0700)]
Merge tag 'pm-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"The majority of these are cpufreq changes, which has been a recurring
pattern for a few recent cycles.
Those changes include new hardware support (AN7583 SoC support in the
airoha cpufreq driver, ipq5424 support in the qcom-nvmem cpufreq
driver, MT8196 support in the mediatek cpufreq driver, AM62D2 support
in the ti cpufreq driver), DT bindings and Rust code updates, cleanups
of the core and governors, and multiple driver fixes and cleanups.
Beyond that, there are hibernation fixes (some remaining 6.16 cycle
fallout and an issue related to hybrid suspend in the amdgpu driver),
cleanups of the PM core code, runtime PM documentation update, cpuidle
and power capping cleanups, and tooling updates.
Specifics:
- Rearrange variable declarations involving __free() in the cpufreq
core and intel_pstate driver to follow common coding style (Rafael
Wysocki)
- Fix object lifecycle issue in update_qos_request(), rearrange freq
QoS updates using __free(), and adjust frequency percentage
computations in the intel_pstate driver (Rafael Wysocki)
- Update intel_pstate to allow it to enable HWP without EPP if the
new DEC (Dynamic Efficiency Control) HW feature is enabled (Rafael
Wysocki)
- Use on_each_cpu_mask() in drv_write() in the ACPI cpufreq driver to
simplify the code (Rafael Wysocki)
- Use likely() optimization in intel_pstate_sample() (Yaxiong Tian)
- Remove dead EPB-related code from intel_pstate (Srinivas
Pandruvada)
- Use scope-based cleanup for cpufreq policy references in multiple
cpufreq drivers (Zihuan Zhang)
- Avoid calling get_governor() for the first policy in the cpufreq
core to simplify the initial policy path (Zihuan Zhang)
- Clean up the cpufreq core in multiple places (Zihuan Zhang)
- Use int type to store negative error codes in the cpufreq core and
update the speedstep-lib to use int for error codes (Qianfeng Rong)
- Update the efficient idle check for Intel extended Families in the
ondemand cpufreq governor (Sohil Mehta)
- Replace sscanf() with kstrtouint() in the conservative cpufreq
governor (Kaushlendra Kumar)
- Rename CpumaskVar::as[_mut]_ref to from_raw[_mut] in the cpumask
Rust code and mark CpumaskVar as transparent (Alice Ryhl, Baptiste
Lepers)
- Update ARef and AlwaysRefCounted imports from sync::aref in the OPP
Rust code (Shankari Anand)
- Add support for AN7583 SoC to the airoha cpufreq driver (Christian
Marangi)
- Enable cpufreq for ipq5424 in the qcom-nvmem cpufreq driver (Md
Sadre Alam)
- Add support for MT8196 to the mediatek-hw cpufreq driver, refactor
that driver and add mediatek,mt8196-cpufreq-hw DT binding (Nicolas
Frattaroli)
- Avoid redundant conditions in the mediatek cpufreq driver (Liao
Yuanhong)
- Add support for AM62D2 to the ti cpufreq driver and blocklist
ti,am62d2 SoC in dt-platdev (Paresh Bhagat)
- Support more speed grades on AM62Px SoC in the ti cpufreq driver,
allow all silicon revisions to support OPPs in it, and fix
supported hardware for 1GHz OPP (Judith Mendez)
- Add QCS615 compatible to DT bindings for cpufreq-qcom-hw (Taniya
Das)
- Minor assorted updates of the scmi, longhaul, CPPC, and armada-37xx
cpufreq drivers (Akhilesh Patil, BowenYu, Dennis Beier, and Florian
Fainelli)
- Remove outdated cpufreq-dt.txt (Frank Li)
- Fix python gnuplot package names in the amd_pstate_tracer utility
(Kuan-Wei Chiu)
- Saravana Kannan will maintain the virtual-cpufreq driver (Saravana
Kannan)
- Prevent CPU capacity updates after registering a perf domain from
failing on a first CPU that is not present (Christian Loehle)
- Add support for the cases in which frequency alone is not
sufficient to uniquely identify an OPP (Krishna Chaitanya Chundru)
- Use to_result() for OPP error handling in Rust (Onur Özkan)
- Add support for LPDDR5 on Rockhip RK3588 SoC to rockchip-dfi
devfreq driver (Nicolas Frattaroli)
- Fix an issue where DDR cycle counts on RK3588/RK3528 with LPDDR4(X)
are reported as half by adding a cycle multiplier to the DFI driver
in rockchip-dfi devfreq-event driver (Nicolas Frattaroli)
- Fix missing error pointer dereference check of regulator instance
in the mtk-cci devfreq driver probe and remove a redundant
condition from an if () statement in that driver (Dan Carpenter,
Liao Yuanhong)
- Fail cpuidle device registration if there is one already to avoid
sysfs-related issues (Rafael Wysocki)
- Use sysfs_emit()/sysfs_emit_at() instead of sprintf()/scnprintf()
in cpuidle (Vivek Yadav)
- Fix device and OF node leaks at probe in the qcom-spm cpuidle
driver and drop unnecessary initialisations from it (Johan Hovold)
- Remove unnecessary address-of operators from the intel_idle cpuidle
driver (Kaushlendra Kumar)
- Rearrange main loop in menu_select() to make the code in that
funtion easier to follow (Rafael Wysocki)
- Convert values in microseconds to ktime using us_to_ktime() where
applicable in the intel_idle power capping driver (Xichao Zhao)
- Annotate loops walking device links in the power management core
code as _srcu and add macros for walking device links to reduce the
likelihood of coding mistakes related to them (Rafael Wysocki)
- Document time units for *_time functions in the runtime PM API
(Brian Norris)
- Clear power.must_resume in noirq suspend error path to avoid
resuming a dependant device under a suspended parent or supplier
(Rafael Wysocki)
- Fix GFP mask handling during hybrid suspend and make the amdgpu
driver handle hybrid suspend correctly (Mario Limonciello, Rafael
Wysocki)
- Fix GFP mask handling after aborted hibernation in platform mode
and combine exit paths in power_down() to avoid code duplication
(Rafael Wysocki)
- Use vmalloc_array() and vcalloc() in the hibernation core to avoid
open-coded size computations (Qianfeng Rong)
- Fix typo in hibernation core code comment (Li Jun)
- Call pm_wakeup_clear() in the same place where other functions that
do bookkeeping prior to suspend_prepare() are called (Samuel Wu)
- Fix and clean up the x86_energy_perf_policy utility and update its
documentation (Len Brown, Kaushlendra Kumar)
- Fix incorrect sorting of PMT telemetry in turbostat (Kaushlendra
Kumar)
- Fix incorrect size in cpuidle_state_disable() and the error return
value of cpupower_write_sysfs() in cpupower (Kaushlendra Kumar)"
* tag 'pm-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (86 commits)
PM: hibernate: Combine return paths in power_down()
PM: hibernate: Restrict GFP mask in power_down()
PM: hibernate: Fix pm_hibernation_mode_is_suspend() build breakage
PM: runtime: Documentation: ABI: Document time units for *_time
tools/power x86_energy_perf_policy.8: Emphasize preference for SW interfaces
tools/power x86_energy_perf_policy: Add make snapshot target
tools/power x86_energy_perf_policy: Prefer driver HWP limits
tools/power x86_energy_perf_policy: EPB access is only via sysfs
tools/power x86_energy_perf_policy: Prepare for MSR/sysfs refactoring
tools/power x86_energy_perf_policy: Enhance HWP enable
tools/power x86_energy_perf_policy: Enhance HWP enabled check
tools/power x86_energy_perf_policy: Fix incorrect fopen mode usage
tools/power turbostat: Fix incorrect sorting of PMT telemetry
drm/amd: Fix hybrid sleep
PM: hibernate: Add pm_hibernation_mode_is_suspend()
PM: hibernate: Fix hybrid-sleep
tools/cpupower: Fix incorrect size in cpuidle_state_disable()
tools/power/x86/amd_pstate_tracer: Fix python gnuplot package names
cpufreq: Replace pointer subtraction with iteration macro
cpuidle: Fail cpuidle device registration if there is one already
...
Drivers:
- dw: shutdown support
- mipi-i3c-hci: Intel Wildcat Lake-U support, IOMMU support
- renesas: RZ/V2H(P) and RZ/V2N support"
* tag 'i3c/for-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (22 commits)
i3c: fix big-endian FIFO transfers
i3c: master: adi: fix number of bytes written to fifo
i3c: Remove superfluous FIXME
i3c: master: adi: fix header location
i3c: dw: Add shutdown support to dw_i3c_master driver
i3c: renesas: Simplify return statement in 'renesas_i3c_daa'
dt-bindings: i3c: renesas,i3c: Add RZ/V2H(P) and RZ/V2N support
i3c: master: svc: Recycle unused IBI slot
i3c: master: svc: Use manual response for IBI events
i3c: master: Add driver for Analog Devices I3C Controller IP
dt-bindings: i3c: Add adi-i3c-master
i3c: Fix default I2C adapter timeout value
i3c: mipi-i3c-hci: Convert remaining DBG() prints to dev_dbg()
i3c: mipi-i3c-hci: Remove function enter DBG() printouts
i3c: mipi-i3c-hci: Uniform ring number printouts
i3c: mipi-i3c-hci: Remove nonexistent ring interrupt
i3c: mipi-i3c-hci: Change interrupt status prints to dev_dbg()
i3c: mipi-i3c-hci: Use own DMA bounce buffer management for I2C transfers
i3c: mipi-i3c-hci: Use physical device pointer with DMA API
i3c: mipi-i3c-hci: Use core helpers for DMA mapping and bounce buffering
...
Linus Torvalds [Wed, 1 Oct 2025 22:11:00 +0000 (15:11 -0700)]
Merge tag 'i2c-for-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
"Mostly DT bindings additions this time because Andi was super busy and
I also could only partly cover it.
- new ids for qcom-cci, mt65xx, exynos5, apple, tegra20, k1, i801
- drop support for already removed S3C2410
- introduce and use fwnode_for_each_child_node_scoped()
- mmt65xx: improve write-then-read transactions
- k1: various fixes around bus errors and resets
- usual share of cleanups, minor improvements, PM fixes...
at24 updates:
- add the compatible for Giantec GT24C256C to the device-tree
bindings"
* tag 'i2c-for-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (33 commits)
i2c: i801: Add support for Intel Wildcat Lake-U
dt-bindings: i2c: i2c-mt65xx: Add MediaTek MT8196/6991 compatibles
i2c: designware: Add disabling clocks when probe fails
i2c: designware: Fix clock issue when PM is disabled
i2c: busses: Fix some spelling errors
i2c: mux: Simplify boolean assignment in i2c_mux_alloc
i2c: designware: use dev_err_probe() when probing platform device
i2c: designware: convert to dev_err_probe() on request IRQ error
i2c: spacemit: ensure SDA is released after bus reset
i2c: spacemit: check SDA instead of SCL after bus reset
i2c: spacemit: disable SDA glitch fix to avoid restart delay
i2c: spacemit: remove stop function to avoid bus error
i2c: spacemit: ensure bus release check runs when wait_bus_idle() fails
i2c: mediatek: fix potential incorrect use of I2C_MASTER_WRRD
i2c: boardinfo: Annotate code used in init phase only
dt-bindings: i2c: i2c-mt65xx: Document MediaTek MT6878 I2C
dt-bindings: i2c: samsung,s3c2410-i2c: Drop S3C2410
i2c: s3c2410: Drop S3C2410 OF support
dt-bindings: i2c: spacemit,k1-i2c: Minor whitespace cleanup in example
dt-bindings: i2c: exynos5: add samsung,exynos8890-hsi2c compatible
...
Brian Masney [Wed, 1 Oct 2025 06:11:00 +0000 (08:11 +0200)]
ARM: versatile: clock: convert from round_rate() to determine_rate()
The round_rate() clk ops is deprecated, so migrate this driver from
round_rate() to determine_rate() using the Coccinelle semantic patch
on the cover letter of this series.
Linus Torvalds [Wed, 1 Oct 2025 20:14:48 +0000 (13:14 -0700)]
Merge tag 'pinctrl-v6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"We have GPIO awareness in the pin control core and an interesting
AAEON driver.
Core changes:
- Allow pins to be identified/marked as GPIO mode with a special
callback.
The pin controller core is now "aware" if a pin is in GPIO mode if
the callback is implemented in the driver, and can thus be marked
as "strict", i.e. disallowing simultaneous use of a line as GPIO
and another function such as I2C.
This is enabled in the Qualcomm TLMM driver and also implemeted
from day 1 in the new Broadcom STB driver
- Rename the pin config option PIN_CONFIG_OUTPUT to PIN_CONFIG_LEVEL
to better describe what the config is doing, as well as making it
more intuitive what shall be returned when reading this property
This is some special pin controller that works as an external
advanced line MUX and amplifier for signals from an Intel SoC. A
cooperative effort with the GPIO maintainer was needed to reach a
solution where we reuse code from the GPIO aggregator/forwarder
driver
- Renesas RZ/T2H and RZ/N2H pin controller support
- Axis ARTPEC-8 subdriver for the Samsung pin controller driver
Improvements:
- Output enable (OEN) support in the Renesas RZG2L driver
- Properly support bias pull up/down in the pinctrl-single driver
- Move over all GPIO portions using generic MMIO GPIO to the new
generic GPIO chip management which has a nice and separate API
- Proper DT bindings for some older Broadcom SoCs
- External GPIO (EGPIO) support in the Qualcomm SM8250
Deleted code:
- Dropped the now unused Samsung S3C24xx drivers"
* tag 'pinctrl-v6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (75 commits)
pinctrl: use more common syntax for compound literals
pinctrl: Simplify printks with pOF format
pinctrl: qcom: Add SDM660 LPASS LPI TLMM
dt-bindings: pinctrl: qcom: Add SDM660 LPI pinctrl
pinctrl: qcom: lpass-lpi: Add ability to use custom pin offsets
pinctrl: qcom: Add glymur pinctrl driver
dt-bindings: pinctrl: qcom: Add Glymur pinctrl
pinctrl: qcom: sm8250: Add egpio support
pinctrl: generic: rename PIN_CONFIG_OUTPUT to LEVEL
pinctrl: keembay: fix double free in keembay_build_functions()
pinctrl: spacemit: fix typo in PRI_TDI pin name
pinctrl: eswin: Fix regulator error check and Kconfig dependency
pinctrl: bcm: Add STB family pin controller driver
dt-bindings: pinctrl: Add support for Broadcom STB pin controller
pinctrl: qcom: make the pinmuxing strict
pinctrl: qcom: mark the `gpio` and `egpio` pins function as non-strict functions
pinctrl: qcom: add infrastructure for marking pin functions as GPIOs
pinctrl: allow to mark pin functions as requestable GPIOs
pinctrl: qcom: use generic pin function helpers
pinctrl: make struct pinfunction a pointer in struct function_desc
...
Linus Torvalds [Wed, 1 Oct 2025 20:10:30 +0000 (13:10 -0700)]
Merge tag 'for-linus-6.18-1' of https://github.com/cminyard/linux-ipmi
Pull IPMI updates from Corey Minyard:
"Bug fixes and enhancements for IPMI
This fixes a number of small bugs, but has some more major changes:
- Loongson-2K BMC support is added. This is an MFD device and is
dependent on the changes coming from that tree.
The way the driver handles BMCs that have become non-functional has
been completely redone. A number of changes in the past have
attempted to handle various issues around this, but nothing has
been very good. After working with some people on this, the code
has been reworked to disable the driver and fail all pending
operations if the BMC becomes non functional. It will retry the BMC
once a second to see if it's back up"
* tag 'for-linus-6.18-1' of https://github.com/cminyard/linux-ipmi:
ipmi: Add Loongson-2K BMC support
ipmi:si: Gracefully handle if the BMC is non-functional
ipmi: Rename "user_data" to "recv_msg" in an SMI message
ipmi: Allow an SMI sender to return an error
ipmi:si: Move flags get start to its own function
ipmi:si: Merge some if statements
ipmi: Set a timer for maintenance mode
ipmi: Add a maintenance mode sysfs file
ipmi: Disable sysfs access and requests in maintenance mode
ipmi: Differentiate between reset and firmware update in maintenance
dt-bindings: ipmi: aspeed,ast2400-kcs-bmc: Add missing "clocks" property
ipmi: Rework user message limit handling
Revert "ipmi: fix msg stack when IPMI is disconnected"
ipmi:msghandler:Change seq_lock to a mutex
Linus Torvalds [Wed, 1 Oct 2025 20:02:59 +0000 (13:02 -0700)]
Merge tag 'for-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
"Power-supply core:
- introduce adc-battery-helper for capacity estimation based on
simple ADC readings of battery voltage and current
- add new properties for battery internal resistance and state of
health
Power-supply drivers:
- ug3105_battery: convert to adc-battery-helper
- intel_dc_ti_battery: New driver for Intel Dollar Cove TI batteries
- rt9467-charger: add voltage and current ADC support
- sbs-charger: support multiple instances
- qcom_battmgr:
- add charge control support
- add support for state of health and internal resistance
- max77705_charger:
- big driver cleanup
- add support for setting charge current
- misc minor fixes and cleanups"
* tag 'for-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (38 commits)
power: supply: qcom_battmgr: handle charging state change notifications
power: supply: max77705_charger: use REGMAP_IRQ_REG_LINE macro
power: supply: max77705_charger: rework interrupts
power: supply: max77705_charger: add writable properties
power: supply: max77705_charger: return error when config fails
power: supply: max77705_charger: use regfields for config registers
power: supply: max77705_charger: refactoring: rename charger to chg
mfd: max77705: max77705_charger: move active discharge setting to mfd parent
power: supply: max77976_charger: fix constant current reporting
power: supply: qcom_battmgr: Add charge control support
dt-bindings: soc: qcom,pmic-glink: Add charge limit nvmem properties
power: supply: qcom_battmgr: update compats for SM8550 and X1E80100
power: supply: qcom_battmgr: Add state_of_health property
power: supply: qcom_battmgr: Add resistance power supply property
power: supply: core: Add state_of_health power supply property
power: supply: core: Add resistance power supply property
power: supply: rx51: remove redundant condition checks
dt-bindings: power: supply: bq24190: document charge enable pin
dt-bindings: power: supply: bq27xxx: document optional interrupt
power: supply: intel_dc_ti_battery: Drop no longer relevant comment
...
Linus Torvalds [Wed, 1 Oct 2025 19:52:43 +0000 (12:52 -0700)]
Merge tag 'firewire-updates-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire updates from Takashi Sakamoto:
"This update includes the following changes:
- Removal of the deprecated debug parameter from firewire-ohci module
- Replacement of the module-local workqueue in 1394 OHCI PCI driver
with a companion IRQ thread
- Refactoring of bus management code
- Additional minor code cleanup
The existing tracepoints serve as an alternative to the removed debug
parameter. The use of IRQ thread is experimental, as it handles 1394
OHCI SelfIDComplete event only. It may be replaced in the future
releases with another approach; e.g. by providing workqueue from core
functionality"
* tag 'firewire-updates-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394: (43 commits)
firewire: core: fix undefined reference error in ARM EABI
Revert "firewire: core: disable bus management work temporarily during updating topology"
Revert "firewire: core: shrink critical section of fw_card spinlock in bm_work"
firewire: core: suppress overflow warning when computing jiffies from isochronous cycle
firewire: core: minor code refactoring to delete useless local variable
firewire: core; eliminate pick_me goto label
firewire: core: code refactoring to split contention procedure for bus manager
firewire: core: code refactoring for the case of generation mismatch
firewire: core: use switch statement to evaluate transaction result to CSR_BUS_MANAGER_ID
firewire: core: remove useless generation check
firewire: core: use struct_size and flex_array_size in ioctl_add_descriptor
firewire: core: shrink critical section of fw_card spinlock in bm_work
firewire: core: disable bus management work temporarily during updating topology
firewire: core: schedule bm_work item outside of spin lock
firewire: core: annotate fw_destroy_nodes with must-hold-lock
firewire: core: use spin lock specific to timer for split transaction
firewire: core: use spin lock specific to transaction
firewire: core: use spin lock specific to topology map
firewire: core: maintain phy packet receivers locally in cdev layer
firewire: core: use scoped_guard() to manage critical section to update topology
...
Linus Torvalds [Wed, 1 Oct 2025 19:46:26 +0000 (12:46 -0700)]
Merge tag 'backlight-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight
Pull backlight updates from Lee Jones:
"This set is comprised of a couple of small but important fixes and a
number of clean-up and refactoring patches. The fixes correct an EPROM
address for the LP8556 and improve memory allocation safety in the LED
backlight driver.
The remainder of the set is made up of refactoring work to the mp3309c
driver and a series of patches to make a number of drivers more
self-contained by including their own dependencies.
Improvements & Fixes:
- Correct the EPROM start address for the LP8556 to align with the
device's datasheet.
- Use devm_kcalloc() in the LED backlight driver for safer array
allocation with overflow protection.
Cleanups & Refactoring
- Drop an unnecessary call to pwm_apply_args() in the mp3309c driver.
- Modernize struct initialization in the mp3309c driver by using a
compound literal instead of memset.
- Make numerous drivers self-contained by including necessary headers
directly rather than relying on transitive includes from the core
backlight header"
* tag 'backlight-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
backlight: rt4831: Include <linux/mod_devicetable.h>
backlight: rave-sp: Include <linux/of.h> and <linux/mod_devicetable.h>
backlight: led_bl: Include <linux/of.h>
backlight: ktd2801: Include <linux/mod_devicetable.h>
backlight: jornada720: Include <linux/io.h>
backlight: da9052_bl: Include <linux/mod_devicetable.h>
backlight: as3711_bl: Include <linux/of.h>
backlight: apple_dwi_bl: Include <linux/mod_devicetable.h>
backlight: Include <linux/of.h>
video: backlight: lp855x_bl: Set correct EPROM start for LP8556
backlight: led_bl: Use devm_kcalloc() for array space allocation
backlight: mp3309c: Initialize backlight properties without memset
backlight: mp3309c: Drop pwm_apply_args()
Linus Torvalds [Wed, 1 Oct 2025 19:42:13 +0000 (12:42 -0700)]
Merge tag 'leds-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds
Pull LED updates from Lee Jones:
"This submission is a mix of new features, a number of fixes, some
clean-up/refactoring and a few Device Tree binding updates. The most
significant changes include new device support for the IS31FL3236A and
QNAP's status LEDs, a number of fixes for the Qualcomm flash, LP55xx,
MAX77705 and QNAP MCU drivers, along with some generic LED consumer
binding documentation and unification.
New Support & Features:
- Add support for the IS31FL3236A LED driver, including an optional
22kHz PWM frequency setting.
- Add support for the red and green status LEDs on QNAP MCU devices.
Improvements & Fixes:
- Fix an issue in the MAX77705 driver where an error value was
assigned but not returned.
- Correctly update the torch current clamp setting in the Qualcomm
flash LED driver to prevent unexpected clamping.
- Add a separate register map for the PMI8998 to the Qualcomm flash
LED driver to handle its unique register layout.
- Fix the state numbering for the USB LED in the QNAP MCU driver to
avoid command conflicts.
- Correct the memory programming address calculation for non-paged
devices like the LP5562 in the LP55xx driver.
- Add Device Tree support to the generic led_get() function, allowing
LEDs to be looked up by name.
Cleanups & Refactoring:
- Fix a spelling mistake in the Kconfig help text for the BD2606MVV
driver.
- Use devm_mutex_init() in the IS31FL319x driver to simplify code.
Device Tree Bindings Updates:
- Drop the redundant '-db' suffix from the IS31FL319x binding.
- Introduce generic LED consumer bindings for referencing LEDs via
phandles.
- Unify the 'leds' property across several bindings to use the new
generic consumer binding.
- Convert the AMS AS3645A LED controller binding to the DT schema
format"
* tag 'leds-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds:
dt-bindings: leds: as3645: Convert to DT schema
leds: led-class: Add Device Tree support to led_get()
dt-bindings: leds: Unify 'leds' property
dt-bindings: leds: Add generic LED consumer documentation
leds: is31fl319x: Use devm_mutex_init()
leds: leds-lp55xx: Use correct address for memory programming
dt-bindings: leds: issi,is31fl319x: Drop 'db' suffix duplicating dtschema
leds: qnap-mcu: Add support for the red and green status LEDs
leds: qnap-mcu: Fix state numbering for USB LED
leds: flash: leds-qcom-flash: Add a separate register map for PMI8998
leds: flash: leds-qcom-flash: Update torch current clamp setting
leds: max77705: Function return instead of variable assignment
leds: Kconfig: Fix spelling mistake "limitiation" -> "limitation"
leds: leds-is31fl32xx: Add support for is31fl3236a
Linus Torvalds [Wed, 1 Oct 2025 19:04:12 +0000 (12:04 -0700)]
Merge tag 'mfd-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"This round of updates contains a fair amount of new device support, a
couple of fixes and some refactoring. The most notable additions
include new drivers for Loongson's Security Engine, RNG and TPM, new
drivers for TI's TPS6594 Power Button and BQ257xx Charger ICs.
The rest of the set provides a return value check fix and a
refactoring to use a more modern GPIO API for the VEXPRESS sysreg
driver, the removal of a deprecated IRQ ACK function from the MC13xxx
RTC driver and a new DT binding for the aforementioned TI BQ257xx
charger.
New Support & Features:
- Add a suite of drivers for the Loongson Security Engine, including
the core controller, a Random Number Generator (RNG) and Trusted
Platform Module (TPM) support.
- Introduce support for the TI TPS6594 PMIC's power button, including
the input driver, MFD cell registration, and a system power-off
handler.
- Add comprehensive support for the TI BQ257xx series of charger ICs,
including the core MFD driver and a power supply driver for the
charger functionality.
Improvements & Fixes:
- Check the return value of devm_gpiochip_add_data() in the VEXPRESS
sysreg driver to prevent potential silent failures.
Cleanups & Refactoring:
- Add a MAINTAINERS entry for the new Loongson Security Engine
drivers.
- Convert the VEXPRESS sysreg driver to use the modern generic GPIO
chip API.
Removals:
- Remove the deprecated and unused mc13xxx_irq_ack() function from
the MC13xxx RTC, input and touchscreen drivers.
Device Tree Bindings Updates:
- Add device tree bindings for the TI BQ25703A charger"
* tag 'mfd-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (69 commits)
mfd: simple-mfd-i2c: Add compatible string for LX2160ARDB
mfd: simple-mfd-i2c: Keep compatible strings in alphabetical order
dt-bindings: mfd: twl: Add missing sub-nodes for TWL4030 & TWL603x
dt-bindings: watchdog: Add SMARC-sAM67 support
dt-bindings: mfd: tps6594: Allow gpio-line-names
mfd: intel-lpss: Add Intel Wildcat Lake LPSS PCI IDs
mfd: 88pm886: Add GPADC cell
mfd: vexpress-sysreg: Use more common syntax for compound literals
mfd: rz-mtu3: Fix MTU5 NFCR register offset
mfd: max77705: Setup the core driver as an interrupt controller
mfd: cs42l43: Remove IRQ masking in suspend
mfd: cs42l43: Move IRQ enable/disable to encompass force suspend
mfd: ls2kbmc: Add Loongson-2K BMC reset function support
mfd: ls2kbmc: Introduce Loongson-2K BMC core driver
mfd: bd71828, bd71815: Prepare for power-supply support
dt-bindings: mfd: aspeed: Add AST2700 SCU compatibles
dt-bindings: mfd: Convert aspeed,ast2400-p2a-ctrl to DT schema
dt-bindings: mfd: fsl,mc13xxx: Add buttons node
dt-bindings: mfd: fsl,mc13xxx: Convert txt to DT schema
mfd: macsmc: Add "apple,t8103-smc" compatible
...
Linus Torvalds [Wed, 1 Oct 2025 18:54:40 +0000 (11:54 -0700)]
Merge tag 'mmc-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson:
"MMC core:
- Improve RPMB frame handling code
- Add support for a new max-sd-hs-hz DT property to limit frequency
- Add support to manage regulator-under-voltage events
- Support regulator-under-voltage for eMMC to mitigate data
corruptions
- Add mmc_read_tuning() to allow a host to validate its tuning
sequence
- Add some helpers to align checks for CMD23 support
- Read the CCCR register for SDIO over SPI rather than the
unsupported CMD7
MMC host:
- Add COMPILE_TEST option for a couple of drivers
- Convert drivers to use the modern PM macros
- dw_mmc-exynos: Enable support for the Exynos8890 variant
- mmc_spi: Don't use crc ack during multiple block read
- renesas_sdhi: Enable 64-bit polling mode for R-Car gen3 and
RZ/G2L SoCs
- rtsx_usb: Add support for over-current-protection
- sdhci-cadence: Add support for multi-block read gap tuning
- sdhci-msm:
- Add support for tuning for SDR50 mode for SD cards
- Enable support for the Lemans variant
- sdhci-pci: Disable SD card clock before update for a few
Intel platforms
- sdhci-pxav3: Add support for UHS pinctrl settings
- tmio: Add 64-bit read/write support in polling mode
MEMSTICK:
- Convert to use timeouts to prevent indefinite waiting
- rtsx_usb: Add support for over-current-protection"
* tag 'mmc-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (77 commits)
dt-bindings: mmc: samsung,exynos-dw-mshc: add specific compatible for exynos8890
mmc: select REGMAP_MMIO with MMC_LOONGSON2
mmc: add COMPILE_TEST to multiple drivers
mmc: core: Improve RPMB frame handling code
mmc: core: Fix variable shadowing in mmc_route_rpmb_frames()
mmc: core: Parse and use the new max-sd-hs-hz DT property
dt-bindings: mmc: controller: Add max-sd-hs-hz property
mmc: sdhci-msm: Enable tuning for SDR50 mode for SD card
dt-bindings: mmc: sdhci-msm: Document the Lemans compatible
mmc: sh_mmcif: Remove dummy PM resume callback
dt-bindings: mmc: sdhci-pxa: Add minItems to pinctrl-names
mmc: sdio: Drop dev_pm_domain_detach() call
mmc: dw_mmc-rockchip: use modern PM macros
mmc: dw_mmc-pci: use modern PM macros
mmc: dw_mmc-k3: use modern PM macros
mmc: dw_mmc: exynos: use modern PM macros
mmc: via-sdmmc: use modern PM macros
mmc: sdhci-msm: use modern PM macros
mmc: mtk-sd: use modern PM macros
mmc: wmt-sdmmc: use modern PM macros
...
Linus Torvalds [Wed, 1 Oct 2025 18:51:53 +0000 (11:51 -0700)]
Merge tag 'pmdomain-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm
Pull pmdomain updates from Ulf Hansson:
- amlogic: Add support for S6/S7/S7D power-domains controller
- imx: Add support for i.MX91 power-domains
- marvell: Add support for PXA1908 power-domains
- mediatek:
- Add support for modem power sequence
- Add support for RTFF Hardware in MT8196/MT6991
- qcom: Align power-domain definitions for rpmpd
- rockchip: Default to use power-domain support
- thead: Create auxiliary device along with a corresponding reset
driver
- ti: Synchronize on/off state with HW-state for ti-sci power-domains
* tag 'pmdomain-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: (25 commits)
pmdomain: thead: Fix error pointer vs NULL bug in th1520_pd_reboot_init()
pmdomain: thead: create auxiliary device for rebooting
driver: reset: th1520-aon: add driver for poweroff/reboot via AON FW
pmdomain: mediatek: airoha: convert from round_rate() to determine_rate()
pmdomain: rockchip: enable ROCKCHIP_PM_DOMAINS with ARCH_ROCKCHIP
pmdomain: marvell: Add PXA1908 power domains
dt-bindings: clock: marvell,pxa1908: Add syscon compatible to apmu
pmdomain: ti-sci: Set PD on/off state according to the HW state
pmdomain: amlogic: Add support for S6 S7 S7D power domains controller
dt-bindings: power: add Amlogic S6 S7 S7D power domains
pmdomain: mediatek: Convert all SoCs to new style regmap retrieval
pmdomain: mediatek: Add support for RTFF Hardware in MT8196/MT6991
pmdomain: mediatek: Add support for modem power sequences
pmdomain: mediatek: Move ctl sequences out of power_on/off functions
pmdomain: mediatek: Handle SoCs with inverted SRAM power-down bits
pmdomain: mediatek: Refactor bus protection regmaps retrieval
dt-bindings: power: mediatek: Document access-controllers property
pmdomain: remove unneeded 'fast_io' parameter in regmap_config
pmdomain: imx93-blk-ctrl: mask DSI and PXP PD domain register on i.MX91
pmdomain: imx93-blk-ctrl: use ARRAY_SIZE() instead of hardcode number
...
Linus Torvalds [Wed, 1 Oct 2025 18:46:31 +0000 (11:46 -0700)]
Merge tag 'spi-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"There's one big core change in this release, Jonas Gorski has
addressed the issues with multiple chip selects which makes things
more robust and stable. Otherwise there's quite a bit of driver work,
as well as some new drivers several existing drivers have had quite a
bit of work done on them.
Possibly the most interesting thing is the VirtIO driver, this is
apparently useful for some automotive applications which want to keep
as small and robust a host system as they can, moving less critical
functionality into guests.
- James Clark has done some substantial updates on the Freescale DSPI
driver, porting in code from the BSP and building onm top of that
to fix some bugs and increase performance
- Jonas Gorski has fixed the issues with handling multple chip
selects, making things more robust and scalable
- Support for higher performance modes in the NXP FSPI driver from
Haibo Chen
- Removal of the obsolete S3C2443 driver, the underlying SoC support
has been removed from the kernel
- Support for Amlogic AL113L2, Atmel SAMA7D65 and SAM9x7 and for
VirtIO controllers"
* tag 'spi-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (74 commits)
spi: ljca: Remove Wentong's e-mail address
spi: rename SPI_CS_CNT_MAX => SPI_DEVICE_CS_CNT_MAX
spi: reduce device chip select limit again
spi: don't check spi_controller::num_chipselect when parsing a dt device
spi: drop check for validity of device chip selects
spi: move unused device CS initialization to __spi_add_device()
spi: keep track of number of chipselects in spi_device
spi: fix return code when spi device has too many chipselects
SPI: Add virtio SPI driver
virtio-spi: Add virtio-spi.h
virtio: Add ID for virtio SPI
spi: rpc-if: Add resume support for RZ/G3E
spi: rpc-if: Drop deprecated SIMPLE_DEV_PM_OPS
spi: spi-qpic-snand: simplify clock handling by using devm_clk_get_enabled()
spi: spi-nxp-fspi: Add OCT-DTR mode support
spi: spi-nxp-fspi: add the support for sample data from DQS pad
spi: spi-nxp-fspi: Add the DDR LUT command support
spi: spi-nxp-fspi: set back to dll override mode when clock rate < 100MHz
spi: spi-nxp-fspi: extract function nxp_fspi_dll_override()
spi: atmel-quadspi: Add support for sama7d65 QSPI
...
Linus Torvalds [Wed, 1 Oct 2025 18:43:54 +0000 (11:43 -0700)]
Merge tag 'regulator-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"This is a very quiet release for regulator, almost all the changes are
new drivers but we do also have some improvements for the Rust
bindings.
- Additional APIs added to the Rust bindings
- Support for Maxim MAX77838, NXP PF0900 and PF5300, Richtek RT5133
and SpacemiT P1"
* tag 'regulator-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (28 commits)
regulator: dt-bindings: qcom,sdm845-refgen-regulator: document more platforms
regulator: Fix MAX77838 selection
regulator: spacemit: support SpacemiT P1 regulators
regulator: max77838: add max77838 regulator driver
dt-bindings: regulator: document max77838 pmic
rust: regulator: add devm_enable and devm_enable_optional
rust: regulator: remove Regulator<Dynamic>
regulator: dt-bindings: rpi-panel: Split 7" Raspberry Pi 720x1280 v2 binding
regulator: pf530x: Add a driver for the NXP PF5300 Regulator
regulator: dt-bindings: nxp,pf530x: Add NXP PF5300/PF5301/PF5302 PMICs
regulator: scmi: Use int type to store negative error codes
regulator: core: Remove redundant ternary operators
rust: regulator: use `to_result` for error handling
regulator: consumer.rst: document bulk operations
regulator: rt5133: Fix IS_ERR() vs NULL bug in rt5133_validate_vendor_info()
regulator: bd718x7: Use kcalloc() instead of kzalloc()
regulator: rt5133: Fix spelling mistake "regualtor" -> "regulator"
regulator: remove unneeded 'fast_io' parameter in regmap_config
regulator: rt5133: Add RT5133 PMIC regulator Support
regulator: dt-bindings: Add Richtek RT5133 Support
...
Linus Torvalds [Wed, 1 Oct 2025 18:41:51 +0000 (11:41 -0700)]
Merge tag 'regmap-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"This just contains a few small fixes, there's been no substantial
development on regmap this release cycle"
* tag 'regmap-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: use int type to store negative error codes
regmap: Remove superfluous check for !config in __regmap_init()
regmap: mmio: Add missing MODULE_DESCRIPTION()
Linus Torvalds [Wed, 1 Oct 2025 18:34:12 +0000 (11:34 -0700)]
Merge tag 'gpio-updates-for-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"There are two new drivers and support for more models in existing
ones.
The generic GPIO API has been reworked and all users converted
which allowed us to move the fields specific to the generic GPIO
implementation out of the high-level struct gpio_chip into its own
structure that wraps the gpio_chip.
Other than that, there's nothing too exciting. Mostly minor tweaks and
fixes all over the place, some refactoring and some small new features
in helper modules.
GPIO core:
- add support for sparse pin ranges to the glue between GPIO and
pinctrl
- use a common prefix across all GPIO descriptor flags for improved
namespacing
New drivers:
- add new GPIO driver for the Nuvoton NCT6694
- add new GPIO driver for MAX7360
Driver improvements:
- add support for Tegra 256 to the gpio-tegra186 driver
- add support for Loongson-2K0300 to the gpio-loongson-64bit driver
- refactor the gpio-aggregator module to expose its GPIO forwarder
API to other in-kernel users (to enable merging of a new pinctrl
driver that uses it)
- convert all remaining drivers to using the modernized generic GPIO
chip API and remove the old interface
- stop displaying global GPIO numbers in debugfs output of controller
drivers
- extend the gpio-regmap helper with a new config option and improve
its support for GPIO interrupts
- remove redundant fast_io parameter from regmap configs in GPIO
drivers that already use MMIO regmaps which imply it
- add support for a new model in gpio-mmio: ixp4xx expansion bus
- order includes alphabetically in a few drivers for better
readability
- use generic device properties where applicable
- use devm_mutex_init() where applicable
- extend build coverage of drivers by enabling more to be compiled
with COMPILE_TEST enabled
- allow building gpio-stmpe as a module
- use dev_err_probe() where it makes sense in drivers
Late driver fixes:
- fix setting GPIO direction to output in gpio-mpfs
Documentation:
- document the usage of software nodes with GPIO chips
Device-tree bindings:
- Add DT bindings documents for new hardware: Tegra256, MAX7360
- Document a new model in Loongson bindings: LS2K0300
- Document a new model using the generic GPIO binding: IXP4xx
- Convert the DT binding for fsl,mxs-pinctrl to YAML
- fix the schema ID in the "trivial" GPIO schema
- describe GPIO hogs in the generic GPIO binding"
* tag 'gpio-updates-for-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (122 commits)
gpio: mpfs: fix setting gpio direction to output
gpio: generic: move GPIO_GENERIC_ flags to the correct header
gpio: generic: rename BGPIOF_ flags to GPIO_GENERIC_
gpio: nomadik: fix the debugfs helper stub
MAINTAINERS: Add entry on MAX7360 driver
input: misc: Add support for MAX7360 rotary
input: keyboard: Add support for MAX7360 keypad
gpio: max7360: Add MAX7360 gpio support
gpio: regmap: Allow to provide init_valid_mask callback
gpio: regmap: Allow to allocate regmap-irq device
pwm: max7360: Add MAX7360 PWM support
pinctrl: Add MAX7360 pinctrl driver
mfd: Add max7360 support
dt-bindings: mfd: gpio: Add MAX7360
rtc: Add Nuvoton NCT6694 RTC support
hwmon: Add Nuvoton NCT6694 HWMON support
watchdog: Add Nuvoton NCT6694 WDT support
can: Add Nuvoton NCT6694 CANFD support
i2c: Add Nuvoton NCT6694 I2C support
gpio: Add Nuvoton NCT6694 GPIO support
...
Linus Torvalds [Wed, 1 Oct 2025 17:33:17 +0000 (10:33 -0700)]
Merge tag 'pwm/for-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux
Pull pwm updates from Uwe Kleine-König:
"The core highlights for this cycle are:
- The pca9586 driver was converted to the waveform API
- Waveform drivers automatically provide a gpio chip to make PWMs
usable as GPIOs (The pca9586 driver did that in a driver specific
implementation before)
Otherwise it's the usual mix of fixes and device tree and driver
changes to support new hardware variants"
* tag 'pwm/for-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux: (30 commits)
pwm: cros-ec: Avoid -Wflex-array-member-not-at-end warnings
dt-bindings: pwm: samsung: add exynos8890 compatible
dt-bindings: pwm: apple,s5l-fpwm: Add t6020-fpwm compatible
dt-bindings: pwm: nxp,lpc1850-sct-pwm: Minor whitespace cleanup in example
pwm: pca9586: Convert to waveform API
pwm: pca9685: Drop GPIO support
pwm: pca9685: Make use of register caching in regmap
pwm: pca9685: Use bulk write to atomicially update registers
pwm: pca9685: Don't disable hardware in .free()
pwm: Add the S32G support in the Freescale FTM driver
dt-bindings: pwm: fsl,vf610-ftm-pwm: Add compatible for s32g2 and s32g3
pwm: mediatek: Lock and cache clock rate
pwm: mediatek: Fix various issues in the .apply() callback
pwm: mediatek: Implement .get_state() callback
pwm: mediatek: Initialize clks when the hardware is enabled at probe time
pwm: mediatek: Rework parameters for clk helper function
pwm: mediatek: Introduce and use a few more register defines
pwm: mediatek: Simplify representation of channel offsets
pwm: tiecap: Document behaviour of hardware disable
pwm: Provide a gpio device for waveform drivers
...
- ina238: Major cleanup, and
Add support for INA700
Add support for INA780
- k10temp:
Add device ID for Strix Halo
Add support for AMD Family 1Ah-based models
- lenovo-ec-sensors: Update P8 supprt
- lm75: Add NXP P3T1750 support
- pmbus/adm1275: Add sq24905c support
- pmbus/isl68137: Add support for Renesas RAA228244 and RAA228246
- pmbus/mp5990: Add support for MP5998
- sht21: Add support for SHT20, SHT25
- sl28cpld: Add sa67mcu compatible
Other notable changes:
- core:
Handle locking internally
Introduce 64-bit energy attribute support
- cros_ec: Register into thermal framework, improve PWM control
- lm75: allow interrupt for ti,tmp75
- mlxreg-fan: Add support for new flavour of capability register
- sbtsi_temp: AMD CPU extended temperature range support
- sht21: Add devicetree support
Various other minor improvements and fixes"
* tag 'hwmon-for-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (86 commits)
dt-bindings: hwmon: (lm75) allow interrupt for ti,tmp75
hwmon: (mlxreg-fan) Add support for new flavour of capability register
hwmon: (mlxreg-fan) Separate methods of fan setting coming from different subsystems
hwmon: (cros_ec) register fans into thermal framework cooling devices
hwmon: (cros_ec) add PWM control over fans
platform/chrome: update pwm fan control host commands
hwmon: add SMARC-sAM67 support
dt-bindings: hwmon: sl28cpld: add sa67mcu compatible
hwmon: (asus-ec-sensors) add TUF GAMING X670E PLUS WIFI
hwmon: (dell-smm) Add support for Dell OptiPlex 7040
hwmon: (dell-smm) Add support for automatic fan mode
hwmon: (gpd-fan) complete Kconfig dependencies
hwmon: (asus-ec-sensors) increase timeout for locking ACPI mutex
hwmon: (asus-ec-sensors) add ROG STRIX X870E-E GAMING WIFI
hwmon: (dell-smm) Move clamping of fan speed out of i8k_set_fan()
hwmon: (dell-smm) Remove Dell Precision 490 custom config data
hwmon: (asus-ec-sensors) add ROG STRIX X670E-E GAMING WIFI
hwmon: (gpd-fan) Fix range check for pwm input
hwmon: (pmbus/mp5990) add support for MP5998
dt-bindings: trivial-devices: add mps,mp5998
...
Linus Torvalds [Wed, 1 Oct 2025 16:16:28 +0000 (09:16 -0700)]
Merge tag 'chrome-platform-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform updates from Tzung-Bi Shih:
"New:
- Add a new API cros_ec_device_registered() for checking if the
cros_ec_deivce is ready
Improvements:
- Use TRAILING_OVERLAP() to fix -Wflex-array-member-not-at-end
warning
- Defer probe until parent EC device is ready in cros_ec_keyb
Cleanups:
- Remove redundant and simplify code in cros_ec_chardev
- Centralize cros_ec_device allocation and initialization to remove
duplicate code"
* tag 'chrome-platform-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
Input: cros_ec_keyb - Defer probe until parent EC device is registered
platform/chrome: cros_ec: Add a flag to track registration state
platform/chrome: cros_ec: Separate initialization from cros_ec_register()
platform/chrome: Centralize common cros_ec_device initialization
platform/chrome: Centralize cros_ec_device allocation
platform/chrome: wilco_ec: Remove redundant semicolons
platform/chrome: cros_ec: Avoid -Wflex-array-member-not-at-end warning
platform/chrome: cros_ec_chardev: Decouple fops from struct cros_ec_dev
platform/chrome: cros_ec_chardev: Remove redundant struct field
Linus Torvalds [Wed, 1 Oct 2025 15:39:23 +0000 (08:39 -0700)]
Merge tag 'driver-core-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core updates from Danilo Krummrich:
"Auxiliary:
- Drop call to dev_pm_domain_detach() in auxiliary_bus_probe()
- Optimize logic of auxiliary_match_id()
Rust:
- Auxiliary:
- Use primitive C types from prelude
- DebugFs:
- Add debugfs support for simple read/write files and custom
callbacks through a File-type-based and directory-scope-based
API
- Sample driver code for the File-type-based API
- Sample module code for the directory-scope-based API
- I/O:
- Add io::poll module and implement Rust specific
read_poll_timeout() helper
- IRQ:
- Implement support for threaded and non-threaded device IRQs
based on (&Device<Bound>, IRQ number) tuples (IrqRequest)
- Provide &Device<Bound> cookie in IRQ handlers
- PCI:
- Support IRQ requests from IRQ vectors for a specific
pci::Device<Bound>
- Implement accessors for subsystem IDs, revision, devid and
resource start
- Provide dedicated pci::Vendor and pci::Class types for vendor
and class ID numbers
- Implement Display to print actual vendor and class names; Debug
to print the raw ID numbers
- Add pci::DeviceId::from_class_and_vendor() helper
- Use primitive C types from prelude
- Various minor inline and (safety) comment improvements
- Platform:
- Support IRQ requests from IRQ vectors for a specific
platform::Device<Bound>
- Nova:
- Use pci::DeviceId::from_class_and_vendor() to avoid probing
non-display/compute PCI functions
- Misc:
- Add helper for cpu_relax()
- Update ARef import from sync::aref
sysfs:
- Remove bin_attrs_new field from struct attribute_group
- Remove read_new() and write_new() from struct bin_attribute
Misc:
- Document potential race condition in get_dev_from_fwnode()
- Constify node_group argument in software node registration
functions
- Fix order of kernel-doc parameters in various functions
- Set power.no_pm flag for faux devices
- Set power.no_callbacks flag along with the power.no_pm flag
- Constify the pmu_bus bus type
- Minor spelling fixes"
* tag 'driver-core-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (43 commits)
rust: pci: display symbolic PCI vendor names
rust: pci: display symbolic PCI class names
rust: pci: fix incorrect platform reference in PCI driver probe doc comment
rust: pci: fix incorrect platform reference in PCI driver unbind doc comment
perf: make pmu_bus const
samples: rust: Add scoped debugfs sample driver
rust: debugfs: Add support for scoped directories
samples: rust: Add debugfs sample driver
rust: debugfs: Add support for callback-based files
rust: debugfs: Add support for writable files
rust: debugfs: Add support for read-only files
rust: debugfs: Add initial support for directories
driver core: auxiliary bus: Optimize logic of auxiliary_match_id()
driver core: auxiliary bus: Drop dev_pm_domain_detach() call
driver core: Fix order of the kernel-doc parameters
driver core: get_dev_from_fwnode(): document potential race
drivers: base: fix "publically"->"publicly"
driver core/PM: Set power.no_callbacks along with power.no_pm
driver core: faux: Set power.no_pm for faux devices
rust: pci: inline several tiny functions
...
dt-bindings: mfd: twl: Add missing sub-nodes for TWL4030 & TWL603x
Update the main TI TWL-family binding to be self-contained and to fix
pre-existing validation errors.
To ensure future patches are bisectable, child nodes whose bindings
are in other patches (audio, keypad, usb, etc.) are now defined using
a flexible 'additionalProperties: true' pattern. This removes hard
dependencies between the MFD and subsystem bindings.
The complete dtbs_check for this binding is clean except for two
warnings originating from pre-existing bugs in the OMAP DTS files,
for which fixes have already been submitted separately [1][2].
Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Uwe Kleine-König <ukleinek@kernel.org> Signed-off-by: Jihed Chaibi <jihed.chaibi.dev@gmail.com> Reviewed-by: Andreas Kemnade <andreas@kemnade.info> Signed-off-by: Lee Jones <lee@kernel.org>
Michael Walle [Fri, 12 Sep 2025 12:07:43 +0000 (14:07 +0200)]
dt-bindings: watchdog: Add SMARC-sAM67 support
The SMARC-sAM67 board has an on-board uC which has the same register
interface as the older CPLD implementation on the SMARC-sAL28 board.
Although the MCU emulates the same behavior, be prepared for any quirks
and add a board specific compatible.
Signed-off-by: Michael Walle <mwalle@kernel.org> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Lee Jones <lee@kernel.org>
The NFCR register for MTU5 is at 0x1a95 offset according to Datasheet
Page 725, Table 16.4. The address of all registers is offset by 0x1200,
making the proper address of MTU5 NFCR register be 0x895.
Cc: stable@vger.kernel.org Fixes: 654c293e1687 ("mfd: Add Renesas RZ/G2L MTU3a core driver") Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com> Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20250910175914.12956-1-cosmin-gabriel.tanislav.xa@renesas.com Signed-off-by: Lee Jones <lee@kernel.org>
mfd: max77705: Setup the core driver as an interrupt controller
Current implementation describes only MFD's own topsys interrupts.
However, max77705 has a register which indicates interrupt source, i.e.
it acts as an interrupt controller. There's 4 interrupt sources in
max77705: topsys, charger, fuelgauge, usb type-c manager.
Setup max77705 MFD parent as an interrupt controller. Delete topsys
interrupts because currently unused.
Remove shared interrupt flag, because we're are an interrupt controller
now, and subdevices should request interrupts from us.
Charles Keepax [Wed, 3 Sep 2025 09:45:48 +0000 (10:45 +0100)]
mfd: cs42l43: Move IRQ enable/disable to encompass force suspend
As pm_runtime_force_suspend() will force the device state to suspend,
the driver needs to ensure no IRQ handlers are currently running. If not
those handlers may find they are now running on suspended hardware
despite holding a PM runtime reference. disable_irq() will sync any
currently running handlers, so move the IRQ disabling to cover the whole
of the forced suspend state to avoid such race conditions.
mfd: ls2kbmc: Add Loongson-2K BMC reset function support
Since the display is a sub-function of the Loongson-2K BMC, when the
BMC reset, the entire BMC PCIe is disconnected, including the display
which is interrupted.
Quick overview of the entire LS2K BMC reset process:
There are two types of reset methods: soft reset (BMC-initiated reboot
of IPMI reset command) and BMC watchdog reset (watchdog timeout).
First, regardless of the method, an interrupt is generated (PCIe interrupt
for soft reset/GPIO interrupt for watchdog reset);
Second, during the interrupt process, the system enters bmc_reset_work,
clears the bus/IO/mem resources of the LS7A PCI-E bridge, waits for the BMC
reset to begin, then restores the parent device's PCI configuration space,
waits for the BMC reset to complete, and finally restores the BMC PCI
configuration space.
Alexander Kurz [Fri, 29 Aug 2025 20:15:15 +0000 (20:15 +0000)]
dt-bindings: mfd: fsl,mc13xxx: Convert txt to DT schema
Convert the txt mc13xxx bindings to DT schema attempting to keep most
information. The nodes codec and touchscreen are not part of the new
schema since it was only briefly mentioned before.
Following the convention, rename led-control to fsl,led-control.
Janne Grunau [Thu, 28 Aug 2025 14:01:37 +0000 (16:01 +0200)]
mfd: macsmc: Add "apple,t8103-smc" compatible
After discussion with the devicetree maintainers we agreed to not extend
lists with the generic compatible "apple,smc" anymore [1]. Use
"apple,t8103-smc" as base compatible as it is the SoC the driver and
bindings were written for.
mfd: core: Increment of_node's refcount before linking it to the platform device
When an MFD device is added, a platform_device is allocated. If this
device is linked to a DT description, the corresponding OF node is linked
to the new platform device but the OF node's refcount isn't incremented.
As of_node_put() is called during the platform device release, it leads
to a refcount underflow.
Call of_node_get() to increment the OF node's refcount when the node is
linked to the newly created platform device.
dt-bindings: mfd: syscon: Document the control-scb syscon on PolarFire SoC
The "control-scb" region, contains the "tvs" temperature and voltage
sensors and the control/status registers for the system controller's
mailbox. The mailbox has a dedicated node, so there's no need for a
child node describing it, looking the syscon up by compatible is
sufficient.
Alex Elder [Mon, 25 Aug 2025 17:20:51 +0000 (12:20 -0500)]
mfd: simple-mfd-i2c: Add SpacemiT P1 support
Enable support for the RTC and regulators found in the SpacemiT P1
PMIC. Support is implemented by the simple I2C MFD driver.
The P1 PMIC is normally implemented with the SpacemiT K1 SoC. This
PMIC provides 6 buck converters and 12 LDO regulators. It also
implements a switch, watchdog timer, real-time clock, and more.
Initially its RTC and regulators are supported.
The Kontron SMARC-sAM67 module features an on-board house keeping uC.
It's designed to be compatible with the older on-board CPLD used on the
SMARC-sAL28 board. To be prepared for any board specific quirks, add a
specific compatible.
Arnd Bergmann [Fri, 8 Aug 2025 15:17:58 +0000 (17:17 +0200)]
mfd: aat2870: Add GPIOLIB_LEGACY dependency
This driver uses the legacy gpiolib interfaces to get gpio
numbers from platform data. There are no in-tree users of
this driver, so nothing defines the platform data.
Add a dependency on GPIOLIB_LEGACY for the moment to avoid the build
failure, and make sure the sound driver does not get built without the
mfd portion either pass that dependency along.
Alternatively, we could remove the mfd driver along with the backlight
and regulator portions.
Arnd Bergmann [Fri, 8 Aug 2025 15:17:57 +0000 (17:17 +0200)]
mfd: si476x: Add GPIOLIB_LEGACY dependency
This driver uses the legacy gpiolib interfaces to get gpio
numbers from platform data:
drivers/mfd/si476x-i2c.c: In function 'si476x_core_start':
drivers/mfd/si476x-i2c.c:133:21: error: implicit declaration of function 'gpio_is_valid'; did you mean 'uuid_is_valid'? [-Werror=implicit-function-declaration]
133 | if (gpio_is_valid(core->gpio_reset))
There are no in-tree users of this driver, so nothing defines
the platform data.
Add a dependency on GPIOLIB_LEGACY for the moment to avoid the build
failure, and make sure the sound driver does not get built without the
mfd portion either pass that dependency along.
Alternatively, we could remove the mfd driver along with the radio and
sound portions.
Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202507231653.UFlH2dMO-lkp@intel.com/ Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20250808151822.536879-14-arnd@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>
dt-bindings: mfd: Move embedded controllers to own directory
Move several embedded controller bindings (like ChromeOS EC, Gateworks
System Controller and Kontron sl28cpld Board Management) to new
subdirectory "embedded-controller" matching their purpose.
An embedded controller (EC) is a discrete component that contains a
microcontroller (i.e. a small CPU running a small firmware without
operating system) mounted into a larger computer system running
a fully fledged operating system that needs to utilize the embedded
controller as part of its operation.
So far the EC bindings were split between "mfd" and "platform"
directory. MFD name comes from Linux, not hardware, and "platform" is a
bit too generic.
Rename Gateworks GSC and Huawei Gaokun filenames to match compatible, as
preferred for bindings.
Acked-by: Michael Walle <mwalle@kernel.org> # for sl28cpld Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Mark Brown <broonie@kernel.org> Reviewed-by: "Rob Herring (Arm)" <robh@kernel.org> Link: https://lore.kernel.org/r/20250825081201.9775-2-krzysztof.kozlowski@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
Arnd Bergmann [Fri, 8 Aug 2025 15:17:56 +0000 (17:17 +0200)]
mfd: arizona: Make legacy gpiolib interface optional
The only machine that still uses the old gpio number based interface
is the wlf_cragg_6410 board file. In order to remove the dependency
on the interfaces, add #ifdef blocks here.
dt-bindings: mfd: aspeed-lpc: Add missing "clocks" property on lpc-snoop node
The ASpeed lpc-snoop nodes have a "clocks" property which isn't
documented. It looks like all the LPC child devices have the same clock
source. Perhaps it is the parent device that should have the clock, but
it's too late for that. The driver for lpc-snoop requires a clock to be
present.
Arnd Bergmann [Thu, 7 Aug 2025 07:19:28 +0000 (09:19 +0200)]
mfd: madera: Work around false-positive -Wininitialized warning
clang-21 warns about one uninitialized variable getting dereferenced
in madera_dev_init:
drivers/mfd/madera-core.c:739:10: error: variable 'mfd_devs' is uninitialized when used here [-Werror,-Wuninitialized]
739 | mfd_devs, n_devs,
| ^~~~~~~~
drivers/mfd/madera-core.c:459:33: note: initialize the variable 'mfd_devs' to silence this warning
459 | const struct mfd_cell *mfd_devs;
| ^
| = NULL
The code is actually correct here because n_devs is only nonzero
when mfd_devs is a valid pointer, but this is impossible for the
compiler to see reliably.
Change the logic to check for the pointer as well, to make this easier
for the compiler to follow.
Waqar Hameed [Tue, 5 Aug 2025 09:33:34 +0000 (11:33 +0200)]
mfd: macsmc: Remove error prints for devm_add_action_or_reset()
When `devm_add_action_or_reset()` fails, it is due to a failed memory
allocation and will thus return `-ENOMEM`. `dev_err_probe()` doesn't do
anything when error is `-ENOMEM`. Therefore, remove the useless call to
`dev_err_probe()` when `devm_add_action_or_reset()` fails, and just
return the value instead.
Jens Kehne [Mon, 4 Aug 2025 13:37:54 +0000 (15:37 +0200)]
mfd: da9063: Split chip variant reading in two bus transactions
We observed the initial probe of the da9063 failing in
da9063_get_device_type in about 30% of boots on a Xilinx ZynqMP based
board. The problem originates in da9063_i2c_blockreg_read, which uses
a single bus transaction to turn the register page and then read a
register. On the bus, this should translate to a write to register 0,
followed by a read to the target register, separated by a repeated
start. However, we found that after the write to register 0, the
controller sometimes continues directly with the register address of
the read request, without sending the chip address or a repeated start
in between, which makes the read request invalid.
To fix this, separate turning the page and reading the register into
two separate transactions. This brings the initialization code in line
with the rest of the driver, which uses register maps (which to my
knowledge do not use repeated starts after turning the page). This has
been included in our kernel for several months and was recently
included in a shipped product. For us, it reliably fixes the issue,
and we have not observed any new issues.
While the underlying problem is probably with the i2c controller or
its driver, I still propose a change here in the interest of
robustness: First, I'm not sure this issue can be fixed on the
controller side, since there are other issues related to repeated
start which can't (AR# 60695, AR# 61664). Second, similar problems
might exist with other controllers.
Hans de Goede [Mon, 4 Aug 2025 13:32:40 +0000 (15:32 +0200)]
mfd: intel_soc_pmic_chtdc_ti: Set use_single_read regmap_config flag
Testing has shown that reading multiple registers at once (for 10-bit
ADC values) does not work. Set the use_single_read regmap_config flag
to make regmap split these for us.
This should fix temperature opregion accesses done by
drivers/acpi/pmic/intel_pmic_chtdc_ti.c and is also necessary for
the upcoming drivers for the ADC and battery MFD cells.
Fixes: 6bac0606fdba ("mfd: Add support for Cherry Trail Dollar Cove TI PMIC") Cc: stable@vger.kernel.org Reviewed-by: Andy Shevchenko <andy@kernel.org> Signed-off-by: Hans de Goede <hansg@kernel.org> Link: https://lore.kernel.org/r/20250804133240.312383-1-hansg@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>
Heiko Stuebner [Mon, 4 Aug 2025 13:07:25 +0000 (15:07 +0200)]
mfd: qnap-mcu: Convert to guard(mutex) in qnap_mcu_exec
guard() makes sure that the mutex gets unlocked when the function returns
and thus removes the need for unlock gotos or similar mechanisms and
therefore allows for a simpler function structure.
projects / thirdparty / kernel / stable.git / log
