kernel/linux.git/drivers/leds, branch v7.0-rc7

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

Merge tag 'leds-next-6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds

2026-02-16T19:15:19+00:00

Pull LED updates from Lee Jones: "New Support & Features: - Add support for the TI LP5812 4x3 matrix RGB LED driver, including autonomous animation engine control and extensive scan multiplexing modes - Add a new driver for the ams Osram AS3668 4-channel I2C LED controller - Extend the is31fl32xx driver to support the is31fl3293 variant, which features 3 channels and 12-bit PWM resolution Improvements & Fixes: - Prevent the ExpressWire KTD2801 chip from entering an undefined state by disabling interrupts during time-sensitive communication - Ensure the Qualcomm LPG driver detects hardware write failures by checking the return value of regmap_bulk_write() during LUT programming - Fix kernel-doc warnings in the lm3692x driver by documenting missing struct members and standardizing the comment style - Update the ExpressWire library to use fsleep() and unexport internal-only functions - Improve the is31fl32xx driver by reordering code to eliminate unnecessary forward declarations Cleanups & Refactoring: - Simplify the LP55XX common LED driver by utilizing the for_each_available_child_of_node_scoped() macro for more concise node iteration Device Tree Bindings Updates: - Add new YAML bindings for the TI LP5860 and LP5812 LED controllers, and the ams Osram AS3668 - Convert the TI LM3697 white LED driver binding to DT schema format - Allow multicolor LED nodes to be named with numeric suffixes (e.g., multi-led-0) to handle multiple instances without unit addresses - Document support for the PMH0101 variant in the Qualcomm LPG PWM and SPMI Flash LED bindings - Add the issi,is31fl3293 compatible string to the is31fl32xx binding" * tag 'leds-next-6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: dt-bindings: leds: Convert ti,lm3697 to DT schema leds: as3668: Driver for the ams Osram 4-channel i2c LED driver dt-bindings: leds: Add new as3668 support docs: leds: Document TI LP5812 LED driver leds: Add basic support for TI/National Semiconductor LP5812 LED Driver leds: qcom-lpg: Check the return value of regmap_bulk_write() dt-bindings: leds: qcom,spmi-flash-led: Add PMH0101 compatible dt-bindings: leds: leds-qcom-lpg: Add support for PMH0101 PWM dt-bindings: leds: Allow differently named multicolor LEDs leds: lp55xx: Simplify with scoped for each OF child loop dt-bindings: leds: add TI/National Semiconductor LP5812 LED Driver leds: is31f132xx: Add support for is31fl3293 leds: is31f132xx: Re-order code to remove forward declarations dt-bindings: leds: Add issi,is31fl3293 to leds-is31fl32xx leds: expresswire: Fix chip state breakage dt-bindings: leds: Add LP5860 LED controller leds: lm3692x: Fix kernel-doc for struct lm3692x_led

leds: as3668: Driver for the ams Osram 4-channel i2c LED driver

2026-02-04T09:23:47+00:00

Since there were no existing drivers for the AS3668 or related devices, a new driver was introduced in a separate file. Similar devices were reviewed, but none shared enough characteristics to justify code reuse. As a result, this driver is written specifically for the AS3668. Signed-off-by: Lukas Timmermann Link: https://patch.msgid.link/20260118165010.902086-3-linux@timmermann.space Signed-off-by: Lee Jones

leds: Add basic support for TI/National Semiconductor LP5812 LED Driver

2026-02-04T09:23:08+00:00

The LP5812 is a 4x3 matrix RGB LED driver with an autonomous animation engine and time-cross-multiplexing (TCM) support for up to 12 LEDs or 4 RGB LEDs. Each LED can be configured through the related registers to realize vivid and fancy lighting effects. This patch adds minimal driver support for the LP5812, implementing only the essential functionality: I2C communication with the device, LED registration, brightness control in manual mode, and basic sysfs interfaces for LED configuration and fault monitoring. Signed-off-by: Nam Tran Link: https://patch.msgid.link/20260115161013.40706-2-trannamatk@gmail.com Signed-off-by: Lee Jones

leds: qcom-lpg: Check the return value of regmap_bulk_write()

2026-02-04T09:21:05+00:00

The lpg_lut_store() function currently ignores the return value of regmap_bulk_write() and always returns 0. This can cause hardware write failures to go undetected, leading the caller to believe LUT programming succeeded when it may have failed. Check the return value of regmap_bulk_write() in lpg_lut_store and return the error to the caller on failure. Fixes: 24e2d05d1b68 ("leds: Add driver for Qualcomm LPG") Signed-off-by: Haotian Zhang Link: https://patch.msgid.link/20260108175133.638-1-vulab@iscas.ac.cn Signed-off-by: Lee Jones

leds: lp55xx: Simplify with scoped for each OF child loop

2026-02-04T09:20:56+00:00

Use scoped for-each loop when iterating over device nodes to make code a bit simpler. Signed-off-by: Krzysztof Kozlowski Link: https://patch.msgid.link/20251224124521.208635-2-krzysztof.kozlowski@oss.qualcomm.com Signed-off-by: Lee Jones

leds: is31f132xx: Add support for is31fl3293

2026-02-04T09:20:37+00:00

This chip supports 3 LED channels with 4096 possible PWM values. Extend the driver to support this variant: * Make brightness steps configurable per device type * Handle dual-register brightness updates * Allow to specify values to write into the PWM update register * Add custom init and shutdown function for 3293 variant * Init registers after parsing DT properties Signed-off-by: Daniel Mack Link: https://patch.msgid.link/20251219154521.643312-4-daniel@zonque.org Signed-off-by: Lee Jones

leds: is31f132xx: Re-order code to remove forward declarations

2026-02-04T09:20:33+00:00

Move the chipdef structs after the functions they reference so that forward declarations become unnecessary. Signed-off-by: Daniel Mack Link: https://patch.msgid.link/20251219154521.643312-3-daniel@zonque.org Signed-off-by: Lee Jones

leds: expresswire: Fix chip state breakage

2026-02-04T09:20:27+00:00

It is possible to put the KTD2801 chip in an unknown/undefined state by changing the brightness very rapidly (for example, with a brightness slider). When this happens, the brightness is stuck on max and cannot be changed until the chip is power cycled. Fix this by disabling interrupts while talking to the chip. While at it, make expresswire_power_off() use fsleep() and also unexport some functions meant to be internal. Fixes: 1368d06dd2c9 ("leds: Introduce ExpressWire library") Tested-by: Karel Balej Signed-off-by: Duje Mihanović Link: https://patch.msgid.link/20251217-expresswire-fix-v2-1-4a02b10acd96@dujemihanovic.xyz Signed-off-by: Lee Jones