Pull MFD updates from Lee Jones:
 "New Support & Features:
   - MediaTek MT6397: Add mt6323 AUXADC support
   - MediaTek MT6397: Add mt6323 EFUSE support
   - Spreadtrum SC27xx: Add SC2730 regulator cell

  Improvements & Fixes:
   - Apple SMC: Fix key count endianness annotation
   - Azoteq IQS62x: Reject zero-length firmware records
   - ChromeOS EC: Introduce cros_ec_read_features helper and read
     features during probe to catch transfer errors
   - Cirrus Logic CS42L43: Fix regmap defaults ordering
   - Cirrus Logic CS42L43: Remove redundant NULL checks on SoundWire
   - Congatec Board Controller: Fix teardown ordering in cgbc_remove()
   - HP iPAQ Micro: Fix out-of-bounds stack read in ipaq_micro_str
   - Marvell 88PM886: Initialize the battery page
   - QNAP MCU: Keep the reply buffer alive past a command timeout
   - RAVE SP: Validate received frame payload lengths
   - Silicon Labs Si476x: Drop duplicate NULL checks
   - Silicon Labs Si476x: Modernize GPIO handling
   - Silicon Motion SM501: Fix potential memory leaks during remove
   - UCB1x00: Convert Assabet gpio-keys to use software nodes and
     register software node for GPIO controller
   - Viperboard: Fix native fields type in structures as little-endian
   - Viperboard: Remove redundant NULL check before kfree()
   - X-Powers AXP20x: Preserve other control bits when powering off

  Cleanups & Refactoring:
   - Core: Drop unused assignment of spi_device_id driver data
   - Core: Initialize spi_device_id arrays using member names
   - Core: Unify style of spi_device_id arrays
   - Maintainers: Add Intel LPSS section to follow the changes
   - Maintainers: Add a mailing list entry to MFD
   - Cirrus Logic CS42L43: Format sdw_device_id table
   - Cirrus Logic CS42L43: Use new SoundWire enumeration helper
   - ROHM PMIC: Factor out power button registration and convert
     gpio-keys to use software nodes
   - ST-Ericsson DB8500: Fold dbx500 header into db8500

  Device Tree Binding Updates:
   - Core: Add techvision vendor prefix
   - Marvell 88PM886: Allow vbus regulator
   - MediaTek MT8195 SCP: Add support for MT8189 SoC
   - Qualcomm SPMI PMIC: Document PMG1110
   - Qualcomm SPMI PMIC: Document haptics device
   - Qualcomm TCSR: Add compatible for Hawi and Maili SoCs
   - Qualcomm TCSR: Add compatible for Shikra
   - Qualcomm TCSR: Document the IPQ9650 TCSR block
   - STMicroelectronics STMPE: Fix typo st,stmpe601 (should be
     st,stmpe610)
   - Syscon: Add ESWIN EIC7700 compatible
   - Syscon: Allow syscon compatible for Loongson-2K0300 chip id
   - Syscon: Disallow simple-bus with syscon
   - Syscon: Drop custom select for older dtschema
   - TI OMAP USBHS TLL: Convert to DT schema"

* tag 'mfd-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (45 commits)
  mfd: cs42l43: Fix regmap defaults ordering
  dt-bindings: mfd: syscon: Allow syscon compatible for Loongson-2K0300 chip id
  dt-bindings: mfd: syscon: Add ESWIN EIC7700 compatible
  mfd: qnap-mcu: keep the reply buffer alive past a command timeout
  dt-bindings: mfd: qcom,tcsr: Document the IPQ9650 TCSR block
  mfd: macsmc: Fix key count endianness annotation
  dt-bindings: mfd: qcom,spmi-pmic: Document haptics device
  mfd: iqs62x: Reject zero-length firmware records
  mfd: rave-sp: validate received frame payload lengths
  mfd: sm501: Fix potential memory leaks during remove
  mfd: viperboard: Fix native fields type in structures as little-endian
  mfd: si476x-i2c: Get rid of duplicate NULL checks
  dt-bindings: mfd: Convert OMAP USB TLL to DT schema
  mfd: cgbc: Fix teardown ordering in cgbc_remove()
  mfd: mt6397-core: Add mt6323 AUXADC support
  dt-bindings: mfd: qcom,tcsr: Add compatible for Hawi and Maili SoCs
  mfd: rohm: Factor out power button registration
  mfd: ucb1x00: Convert Assabet gpio-keys to use software nodes
  mfd: ucb1x00: Register software node for GPIO controller
  mfd: cs42l43: Tidy up formatting on sdw_device_id table
  ...

Pull driver core updates from Danilo Krummrich:
 "container_of:

   - Apply typeof_member(), remove the local __mptr variable to
     eliminate variable shadowing warnings on nested container_of()
     calls, and remove unnecessary parentheses

  core:

   - Add driver name to probe debug print for initcall_debug

   - Avoid repeatedly printing the same 'Fixed dependency cycle' log

   - Unwind device_add() on attribute creation failure in
     attribute_container_add_class_device()

   - Remove statistics group if encryption group creation fails in
     transport_add_class_device()

  debugfs:

   - Fix lockdown check for mmap_prepare()

   - Warn if file creation failed due to uninitialized debugfs

  device property:

   - Implement fw_devlink support for software nodes by adding
     software_node_add_links(), which creates fwnode links from
     DEV_PROP_REF properties to enable automatic probe ordering. Add
     kunit-managed fwnode helpers and test coverage

   - Fix infinite loop in fwnode_for_each_child_node() when the
     secondary fwnode has more than one child. Add test cases

   - Fix out-of-bounds access in software_node_get_reference_args() when
     called with index -1 (UINT_MAX)

   - Refactor to use RAII approach with __free()

   - Add Bartosz Golaszewski as software node reviewer

  firmware loader:

   - Fix race where a sysfs fallback request can complete before being
     queued as pending, leading to a use-after-free on the next fallback
     request

   - Reject 0-size built-in firmware and fail the build on empty
     firmware files in CONFIG_EXTRA_FIRMWARE

  kobject:

   - Provide __KOBJ_ATTR() and __KOBJ_ATTR_RO/WO() initialization macros
     and allow the constification of kobject attributes, enabling them
     to reside in read-only memory

  platform:

   - Provide platform_device_set_of_node(), platform_device_set_fwnode(),
     and platform_device_set_of_node_from_dev() helpers that encapsulate
     firmware node reference counting for dynamically allocated platform
     devices

     Convert all in-tree users that manually assigned dev.of_node or
     dev.fwnode, fixing a pre-existing refcount bug in powermac. Switch
     to counting references of all firmware node types, not only OF
     nodes

   - Unify the release path for dynamically allocated platform devices
     by removing platform_device_release_full(). Amend the fwnode setter
     API contract to warn if a primary software node is overwritten. Add
     KUnit tests for correct software node removal on device
     unregistration

  Rust:

   - Auxiliary:
       - Add registration_data_with() closure-based API for invariant
         ForLt types

   - Debugfs:
       - Migrate BinaryWriter and BinaryReaderMut trait requirements
         from kernel::transmute traits to zerocopy traits

   - Device:
       - Add BoundInternal device context and InternalBoundContext trait
         for bus abstractions that need internal access to a bound
         device.
       - Make the lifetime on Core and CoreInternal invariant to prevent
         coercion to shorter lifetimes

   - Devres:
       - Fix race between concurrent revokers where the losing revoker
         could return before the winning revoker finished dropping the
         inner data, causing use-after-free.
       - Ensure revocation is complete before the device finishes
         unbinding by making the synchronization bidirectional.
       - Add DevresLt<F: ForLt>, a wrapper around Devres that shortens
         'static back to the caller's borrow scope. Implement ForLt and
         CovariantForLt for Bar, IoMem, and ExclusiveIoMem

   - Driver:
       - Switch from index-based to pointer-based device ID info lookup,
         storing static references in driver_data. Centralize device ID
         handling in device_id.rs, removing the open-coded ACPI/OF
         matching logic and duplicate ID table from driver.rs

   - I/O:
       - Make I/O regions typed (with a dynamically-sized Region type
         for the existing untyped case), create view types representing
         subregions of a mapped I/O region, and add io_project!() for
         safely creating subviews.
       - Split Io into a base trait (IoBase) and an extension trait (Io)
         with a blanket implementation, preventing implementers from
         overriding provided methods that unsafe code relies on.
       - Add a SysMem backend for shared system memory with volatile
         access, and make Coherent implement Io via an I/O view type.
         Add IoSysMap as sum type of Mmio and SysMem. Add copying
         methods (memcpy_{from,to}io()) and read_val()/write_val() for
         typed access.
       - Replace dma_read!()/dma_write!() with io_read!()/io_write!()
         for primitives and copying methods for aggregates; drop the old
         macros. Convert nova-core to use I/O projection.
       - Fix internal shortcut rule dispatch in the register!() macro,
         remove unused rule arguments, and use path fragments for alias
         destinations

   - IRQ:
       - Make irq::Registration compatible with lifetime-bound drivers
         by removing the 'static bound on Handler/ThreadedHandler and
         replacing Devres<RegistrationInner> with direct
         request_irq()/free_irq() calls. Handlers can now directly own
         lifetime-bound device resources

   - PCI:
       - Convert IrqVectorRegistration to a lifetime-annotated owning
         type, giving drivers explicit control over the allocation
         lifetime. IrqVector embeds a resolved IrqRequest, making the
         conversion infallible. Remove the redundant
         request_irq()/request_threaded_irq() wrappers from pci::Device.
       - Add pci_irq_type() C helper and expose it via irq_type() on
         IrqVectorRegistration and IrqVector, returning PCI_IRQ_MSIX,
         PCI_IRQ_MSI, or PCI_IRQ_INTX.
       - Mark pci::Device refcount methods inline

   - Serdev:
       - Add Rust abstractions for the serial device bus, including
         serdev::Driver trait, serdev::Device wrapping struct
         serdev_device, and serdev::Adapter implementing
         RegistrationOps. Includes a sample driver. Markus Probst takes
         over as serdev maintainer for both C and Rust code

   - Misc:
       - Split ForLt into a base trait (providing the Of<'a> GAT) and an
         unsafe CovariantForLt subtrait guaranteeing covariance,
         enabling invariant types (e.g. those containing Mutex<&'bound T>)
         to participate in the ForLt abstraction.
       - Fix Coherent read past EOF returning -ERANGE instead of zero.
       - Fix firmware example UB by avoiding null-pointer ARef

  misc:
   - Avoid iattr allocation in kernfs listxattr by using
     kernfs_iattrs_noalloc().
   - Unregister SoC bus on early device registration failure.
   - Remove unused DMA_FENCE_TRACE Kconfig symbol.
   - Fix /sys/module path in comment.
   - Refactor ISA bus init to remove nested blocks.
   - Remove redundant nodemask clears in numa_init().
   - Add kernel-doc for fwnode_operations and sys_soc.h, mark
     internal property data as private for kernel-doc, and add
     property.h/fwnode.h to driver-api infrastructure docs.
   - Add MAINTAINERS entry for sys_soc.h"

* tag 'driver-core-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (129 commits)
  rust: pci: expose the allocated interrupt type
  PCI: Add pci_irq_type() to query the allocated interrupt type
  rust: pci: remove request_irq() and request_threaded_irq() from Device
  rust: pci: resolve IRQ in index() and embed IrqRequest in IrqVector
  rust: pci: convert IrqVectorRegistration to a lifetime-managed owning type
  kernfs: avoid iattr allocation in listxattr
  rust: serdev: use ThisModule::as_ptr() instead of field access
  ACPI/IORT: use platform_device_set_fwnode()
  ACPI/APMT: use platform_device_set_fwnode()
  firmware_loader: do not queue completed sysfs fallback requests
  rust: pci: Mark Device refcount methods inline
  rust: irq: make Registration compatible with lifetime-bound drivers
  rust: net/phy: remove expansion from doc
  rust: dma: return zero for Coherent reads past EOF
  rust: io: register: use path fragment for alias destination
  rust: io: register: remove unused rule arguments
  rust: io: register: dispatch shortcut rules internally
  MAINTAINERS: add sys_soc.h to DRIVER CORE
  rust: debugfs: remove unsafe blocks from traits impl for Vec
  rust: debugfs: migrate debugfs traits requirements to zerocopy
  ...

The regmap defaults should be ordered as binary search is done on the
array. A few registers were added in the wrong places, move these to be
in register address order.

Fixes: a6fe20d67dc7 ("mfd: cs42l43: Add support for the B variant")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20260805120109.4024451-1-ckeepax@opensource.cirrus.com
Signed-off-by: Lee Jones <lee@kernel.org>

qnap_mcu_exec() publishes an on-stack buffer to the receive path:

	unsigned char rx[QNAP_MCU_RX_BUFFER_SIZE];
	...
	reply->data = rx;
	reply->length = length;

and qnap_mcu_receive_buf() writes into it from the serdev receive path,
which runs out of flush_to_ldisc() and is not serialized against
qnap_mcu_exec() at all. bus_lock cannot cover it, because qnap_mcu_exec()
holds that mutex across wait_for_completion_timeout().

On a timeout qnap_mcu_exec() returns with reply->data still pointing at
its own frame. A reply that arrives late, or an unsolicited message from
the MCU, is then written into a stack frame that has been left, corrupting
whatever runs next on that stack. The same applies when qnap_mcu_write()
fails, since that path returns without touching the reply state either.

Move the receive buffer into struct qnap_mcu. It is 37 bytes and the
structure is devm_kzalloc()ed, so it lives as long as the driver, and a
late write lands in memory that is still valid and is reinitialized by the
next command. bus_lock keeps commands from sharing it.

This deliberately does not clear reply->data or reply->length on the
timeout path. Doing so races with qnap_mcu_receive_buf(), which reads both
after its

	if (!reply->length)
		return size;

check: clearing reply->data gives a NULL dereference, and clearing
reply->length alone removes the reply->received == reply->length exit
condition, so the copy loop runs until the uart chunk is consumed and
overruns the buffer. Leaving both set keeps the write bounded by
reply->length, which qnap_mcu_exec() has already checked against
sizeof(mcu->rx).

Fixes: 998f70d1806b ("mfd: Add base driver for qnap-mcu devices")
Cc: stable@vger.kernel.org
Signed-off-by: Ali Ahmet Memis <ali@iusegentoo.com>
Link: https://lore.kernel.org/all/20260802132012.537B81F000E9@smtp.kernel.org/
Link: https://patch.msgid.link/20260802135307.31380-1-ali@iusegentoo.com
Signed-off-by: Lee Jones <lee@kernel.org>

We need the driver-core fixes in here as well to build on top of.

Signed-off-by: Danilo Krummrich <dakr@kernel.org>

SMC firmware returns the value of the #KEY key in big-endian unlike most
other keys. Reading it through apple_smc_read_u32() into a plain u32
and then converting with be32_to_cpu() makes sparse complain:

  drivers/mfd/macsmc.c:462:26: sparse: cast to restricted __be32

Read the raw value into a __be32 using apple_smc_read() instead.

Fixes: e038d985c982 ("mfd: Add Apple Silicon System Management Controller")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202607181046.OANjIoqR-lkp@intel.com/
Signed-off-by: Sven Peter <sven@kernel.org>
Reviewed-by: Janne Grunau <j@jannau.net>
Reviewed-by: Joshua Peisach <jpeisach@ubuntu.com>
Link: https://patch.msgid.link/20260719-b4-macsmc-be32-fix-v1-1-c7b1936307fa@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>

struct iqs62x_fw_rec includes the first data byte in its fixed-size header,
so the parser advances by len - 1 bytes after that header. A zero len makes
the size_t cursor update move back by one byte, so the next record overlaps
the current record instead of following a valid declared extent.

Reject zero-length records and express the remaining-size check without an
offset addition.

Fixes: 4d9cf7df8d35 ("mfd: Add support for Azoteq IQS620A/621/622/624/625")
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Link: https://lore.kernel.org/all/20260706091034.75865-1-pengpeng@iscas.ac.cn/
Link: https://patch.msgid.link/20260720115423.94994-1-pengpeng@iscas.ac.cn
Signed-off-by: Lee Jones <lee@kernel.org>

A received RAVE-SP frame contains protocol data followed by a
variant-specific one- or two-byte checksum. rave_sp_receive_frame() derives
a checksum pointer before proving that the frame contains the checksum,
then passes the checksum-inclusive length to handlers that index the
command, acknowledgment ID and event-data bytes or derive a reply payload
length.

Name those protocol field offsets, prove the checksum extent before
deriving the protocol-data length, pass only that data length to the
handlers, and require the complete event or reply prefix before consuming
it.

Fixes: 538ee27290fa ("mfd: Add driver for RAVE Supervisory Processor")
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn>
Link: https://lore.kernel.org/all/20260706092337.78754-1-pengpeng@iscas.ac.cn/
Link: https://patch.msgid.link/20260720115523.99956-1-pengpeng@iscas.ac.cn
Signed-off-by: Lee Jones <lee@kernel.org>

The memory allocated for struct sm501_devdata in sm501_pci_probe() and
sm501_plat_probe() is not freed by the corresponding remove functions
sm501_pci_remove() and sm501_plat_remove(). Fix that by adding a call to
kfree().

Fixes: b6d6454fdb66 ("[PATCH] mfd: SM501 core driver")
Cc: stable@vger.kernel.org
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Link: https://patch.msgid.link/20260720113836.73133-1-nihaal@cse.iitm.ac.in
Signed-off-by: Lee Jones <lee@kernel.org>

GPIO descriptor APIs are NULL-aware and since the requested line is optional
we don't need to have an additional check each time we want to toggle GPIO.

Get rid of duplicate NULL checks.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20260715191603.1325479-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>