Commit 5b93dc1c0c61 for kernel
commit 5b93dc1c0c61fd0fe575cb473e9e25f929fda509
Merge: d857e1f3faf9 59cf91cf87ab
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon Oct 26 08:55:14 2026 -1000
Merge tag 'leds-next-7.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds
Pull LED updates from Lee Jones:
"New Support & Features:
- Core: Add `led_trigger_notify_hw_control_changed()` to allow
drivers to notify the core of autonomous hardware control
transitions
- Core: Add the `hw_offloaded()` trigger callback and
`trigger_may_offload_to_hw` sysfs attribute to expose
hardware-offloaded triggers
- Netdev Trigger: Implement the `hw_offloaded()` callback to report
hardware control state to the LED core
- Analog Devices LTC3208: Add support for the LTC3208 7-channel
multi-display I2C LED driver
- ChromeOS EC: Implement the `hw_offloaded()` callback for the
`chromeos-auto` trigger
- CZ.NIC Turris Omnia: Implement the `hw_offloaded()` callback and
declare `omnia-mcu` as a hardware control trigger
- STMicroelectronics ST1202: Add hardware-accelerated blink support
via `blink_set()`
Improvements & Fixes:
- Class: Always hold the `led_access` mutex in `brightness_show()` to
avoid exposing transient registration states
- Class: Deactivate active hardware control triggers when writing to
the `brightness` sysfs attribute
- Core: Enforce strict validation in `led_trigger_is_hw_controlled()`
and warn on legacy fallback paths
- Flash Class: Initialize the fault variable in `flash_fault_show()`
to prevent undefined behavior when callbacks perform bitwise ORs
- Kinetic KTD2692: Pass the driver context directly to
`regulator_disable_action()` to prevent a NULL pointer dereference
during error unwinding
- Maxim MAX77705: Use `fwnode_for_each_child_node_scoped()` in
`max77705_add_led()` to prevent child node reference leaks on error
paths
- NXP PCA9532: Check the return value of `i2c_smbus_read_byte_data()`
in `pca9532_getled()` to avoid integer underflow on read errors
- Qualcomm WLED: Fix a NULL pointer dereference in `wled_remove()` by
setting platform driver data in `wled_probe()`
- Qualcomm WLED: Fix the WLED3 brightness register stride to prevent
consecutive string writes from overlapping
- Qualcomm WLED: Read back the hardware-programmed brightness at
probe, expose it via `get_brightness()`, and prevent unbalanced OVP
IRQ enabling
- STMicroelectronics ST1202: Clear unused PWM pattern slots in
`pattern_set()` and `blink_set()` to prevent unintended output when
sharing the global sequencer
- STMicroelectronics ST1202: Program and cap the channel current
according to `max_brightness` across brightness, blink, and
hardware pattern modes, and scale pattern brightness to the 12-bit
PWM range
- STMicroelectronics ST1202: Retain a reference to each child LED
firmware node for the lifetime of the device
- STMicroelectronics ST1202: Use only the blocking
`brightness_set_blocking()` callback to avoid sleeping in atomic
context during I2C transfers
- TI LM3692x: Check the final register write in
`lm3692x_leds_enable()` to prevent regulator/GPIO leaks and an
inconsistent enabled state
- TI LP8860: Fix a `device_node` reference leak in `lp8860_probe()`
using `__free(device_node)`
Cleanups & Refactoring:
- Core: Move `led_trigger_is_hw_controlled()` and `led_trigger_group`
from `led-class.c` into `led-triggers.c`
- Core: Replace conditional `set_bit()`/`clear_bit()` patterns with
`assign_bit()` and `__assign_bit()`
- Flash Class: Simplify `flash_fault_show()` using `sysfs_emit_at()`
and omit the trailing space
- Maintainers: Add Griffin Kroah-Hartman as an LED subsystem reviewer
- Intel SS4200: Fix a spelling typo in a comment
- ISSI IS31FL32xx: Convert DT-specific parsing helpers to generic
device and fwnode property APIs
- NXP PCA955x: Drop redundant intermediate platform data and allocate
the LED array using a flexible array member
- Qualcomm LPG: Convert LED and channel parsing to fwnode APIs and
avoid leaving `default_trigger` uninitialized
- Skyworks AAT1290: Use `ARRAY_SIZE()` when allocating
`mm_current_scale` to match the target pointer type for type-aware
allocators
- STMicroelectronics ST1202: Introduce a `st1202_iled_max()` helper
to unify channel current ceiling calculations
- STMicroelectronics ST1202: Standardize variable and macro naming,
fix helper spelling, and use `u8` consistently instead of `uint8_t`
- Syscon: Convert from OF-specific property helpers to the generic
device property and fwnode APIs
Device Tree Binding Updates:
- Core: Allow PHY RX triggers (`phy[0-9]+rx`) in
`linux,default-trigger`
- Core: Standardize example indentation across multiple LED and
backlight binding schemas
- Analog Devices LTC3208: Document the LTC3208 multi-display LED
driver
- LaCie netxbig: Convert LED bindings to DT schema
- Motorola CPCAP: Convert LED bindings to DT schemaLEDs for v7.4"
* tag 'leds-next-7.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (49 commits)
dt-bindings: leds: lacie,netxbig-leds: Convert to DT schema
leds: pca955x: Drop platform data and allocate LEDs with the device
dt-bindings: leds: Use consistent indentation in the example
backlight: qcom-wled: Read back the programmed brightness at probe
backlight: qcom-wled: Fix unbalanced OVP IRQ enable at probe
backlight: qcom-wled: Fix WLED3 brightness register stride
backlight: qcom-wled: Fix NULL pointer dereference in wled_remove()
dt-bindings: leds: Allow PHY RX triggers
MAINTAINERS: Add myself as a LED SUBSYSTEM reviewer
leds: trigger: Add led_trigger_notify_hw_control_changed() interface
leds: trigger: Enforce strict checks in led_trigger_is_hw_controlled()
leds: trigger: netdev: Implement hw_offloaded() callback
leds: turris-omnia: Implement hw_offloaded() trigger callback and declare hw_control_trigger
leds: cros_ec: Implement hw_offloaded() trigger callback
leds: trigger: Add hw_offloaded() callback and provide trigger_may_offload_to_hw attribute
leds: trigger: Move led_trigger_group to the right place
leds: class: Remove hardware control trigger when writing brightness
leds: trigger: Move led_trigger_is_hw_controlled() to the right place
leds: class: Always protect brightness_show() with led_access
dt-bindings: leds: leds-cpcap: Convert to DT schema
...