linux-stable.git/drivers/leds, branch master

Merge tag 'leds-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds

2026-08-27T18:05:51+00:00

Pull LED updates from Lee Jones:
 "New Support & Features:
   - Core: Extend netdev trigger speeds up to 100G
   - PWM Multicolor: Introduce default-intensity property
   - Analog Devices LTC3220: Add support for 18 channel LED driver
   - NXP PCA963x: Add multicolor LED class support

  Improvements & Fixes:
   - GPIO: Clear error pointers for skipped LEDs
   - Broadcom BCM63138: Use %pe to print pinctrl error instead of %ld
   - ISSI IS31FL319x: Modernize device registration by using fwnode APIs
   - NXP PCA9532: Fix inverted GPIO output polarity
   - NXP PCA9532: Fix phantom device registration on missing hardware
   - STMicroelectronics ST1202: Correct and extend hw_pattern
     documentation
   - STMicroelectronics ST1202: Fix channel disable logic on zero
     brightness and ensure brightness changes are applied in active mode
   - STMicroelectronics ST1202: Fix hardware pattern sequence
     programming, validate inputs, and correct pattern duration
     calculations
   - STMicroelectronics ST1202: Validate LED reg property against
     channel count
   - TI LP5860: Fix a potential double-unlock during device
     initialization and fix error handling path by using
     devm_mutex_init()

  Cleanups & Refactoring:
   - GPIO: Make legacy gpiolib interface optional

  Device Tree Binding Updates:
   - Core: Add default-intensity property
   - Core: Document "gpio" trigger
   - Analog Devices LTC3220: Add DT binding for LTC3220 18 channel LED
     driver
   - Broadcom BCM6358: Convert to DT schema
   - LaCie NS2: Convert to DT schema
   - NXP PCA963x: Add multicolor LED support
   - NXP PCA963x: Fix reg maximum for pca9635
   - TI TPS65217: Convert backlight bindings to DT schema"

* tag 'leds-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (29 commits)
  leds: is31fl319x: Modernize registration
  dt-bindings: leds: lacie,ns2-leds: Convert to DT schema
  leds: pca963x: Add multicolor LED class support
  dt-bindings: leds: nxp,pca963x: Add multicolor LED support
  dt-bindings: leds: nxp,pca963x: Fix reg maximum for pca9635
  leds: gpio: Clear error pointers for skipped LEDs
  dt-bindings: leds: backlight: Convert TPS65217 to DT schema
  leds: pca9532: Fix phantom device registration on missing hardware
  leds: gpio: Make legacy gpiolib interface optional
  leds: bcm63138: Use %pe to print pinctrl error instead of %ld
  dt-bindings: leds: Add default-intensity property
  leds: ltc3220: Add Support for LTC3220 18 channel LED Driver
  dt-bindings: leds: Add LTC3220 18 channel LED Driver
  dt-bindings: leds: bcm6358: Convert to DT schema
  dt-bindings: leds: Document "gpio" trigger
  leds: st1202: Correct and extend hw_pattern documentation
  leds: st1202: Validate LED reg property against channel count
  leds: st1202: Disable channel when brightness is set to zero
  leds: st1202: Fix brightness having no effect while pattern mode is active
  leds: st1202: Fix spurious pattern sequence start in setup
  ...

leds: is31fl319x: Modernize registration

2026-08-12T11:45:11+00:00

Use _ext version to have properties parsed to avoid needing to parse
them in the driver itself. More modern properties are recognized and
the LEDs can be referenced via phandle.

Due to the maximum current mechanics, LEDs are not registered right
in the first iteration over the nodes.

Signed-off-by: Andreas Kemnade 
Link: https://patch.msgid.link/20260806-led-modern-v4-1-eed715baab2e@kemnade.info
Signed-off-by: Lee Jones

leds: pca963x: Add multicolor LED class support

2026-08-06T14:13:41+00:00

Allow grouping of individual PCA963x PWM channels into a single
multicolor LED device by adding support for the LED multicolor class.

A child node with sub-children is treated as a multicolor group,
others are treated as single leds, keeping full backwards compatibility.

Signed-off-by: Loic Poulain 
Link: https://patch.msgid.link/20260727-monza-leds-v8-3-6e7e93d44dba@oss.qualcomm.com
Signed-off-by: Lee Jones

leds: gpio: Clear error pointers for skipped LEDs

2026-08-06T13:51:44+00:00

gpio_led_get_gpiod() returns an error pointer when a platform-data
LED's GPIO is unavailable. gpio_led_probe() skips registration in that
case, but leaves the error pointer in led_dat->gpiod.

The skipped entry remains included in priv->num_leds. During shutdown,
gpio_led_shutdown() walks those entries and passes the error pointer to
gpio_led_set(), producing:

  gpiod_set_value: invalid GPIO (errorpointer: -ENOENT)

Clear led_dat->gpiod before skipping the LED so skipped entries do not
retain error-valued descriptors.

Fixes: 45d4c6de4e49 ("leds: gpio: Try to lookup gpiod from device")
Suggested-by: Lee Jones 
Assisted-by: ChatGPT:GPT-5.5-Thinking
Signed-off-by: Steve Dunnagan 
Reviewed-by: Linus Walleij 
Link: https://patch.msgid.link/20260724180412.43150-1-sdunnaga@redhat.com
Signed-off-by: Lee Jones

leds: pca9532: Fix phantom device registration on missing hardware

2026-07-23T13:51:00+00:00

The initial PWM and PSC register writes in pca9532_configure() do not
check the return values of i2c_smbus_write_byte_data(). If the I2C
device is physically absent from the bus, the write fails with -ENXIO.
However, the driver ignores this error and allows probe() to complete
successfully.

This results in the registration of phantom LED class devices and
gpiochips backed by non-existent hardware. Subsequent GPIO reads from
these phantom chips return bogus values (due to -ENXIO being truncated
to an unsigned char in pca9532_gpio_get_value()), silently corrupting
hardware state tracking in userspace.

Propagate the I2C write failures back to probe() so the driver core
can gracefully abort binding and release devres-managed resources.

Fixes: e14fa82439d3 ("leds: Add pca9532 led driver")
Signed-off-by: Cosmo Chou 
Reviewed-by: Bartosz Golaszewski 
Link: https://patch.msgid.link/20260715080747.1638097-1-chou.cosmo@gmail.com
Signed-off-by: Lee Jones

leds: gpio: Make legacy gpiolib interface optional

2026-07-23T13:08:22+00:00

There are still a handful of ancient mips/armv5/sh boards that use the
gpio_led:gpio member to pass an old-style gpio number, but all modern
users have been converted to gpio descriptors.

While the CONFIG_GPIOLIB_LEGACY option that guards devm_gpio_request_one()
and related helpers is currently turned on in all kernel builds,
the plan is to only enable it on the few platforms that actually
pass gpio numbers in any platform_data.

Split out the legacy portion of the platform_data handling into a custom
helper function that is guarded with in #ifdef block, to allow the
the leds-gpio driver to compile cleanly when CONFIG_GPIOLIB_LEGACY
gets turned off. Once the last user is converted, this function can
be removed.

Link: https://lore.kernel.org/all/e9252384-a55c-4a91-9c61-06e05a0b2ce4@app.fastmail.com/
Signed-off-by: Arnd Bergmann 
Reviewed-by: Linus Walleij 
Reviewed-by: Bartosz Golaszewski 
Reviewed-by: Andy Shevchenko 
Acked-by: Dmitry Torokhov  # for input
Link: https://patch.msgid.link/20260710211854.1371746-4-arnd@kernel.org
Signed-off-by: Lee Jones

leds: bcm63138: Use %pe to print pinctrl error instead of %ld

2026-07-23T12:26:56+00:00

Pass the pinctrl error pointer directly to %pe to print the
symbolic error name.

Detected by Coccinelle. Tested by compiling.

Signed-off-by: Ninad Naik 
Link: https://patch.msgid.link/20260713200732.2470666-1-ninadnaik07@gmail.com
Signed-off-by: Lee Jones

leds: ltc3220: Add Support for LTC3220 18 channel LED Driver

2026-07-23T11:17:57+00:00

Add driver for the LTC3220 18-channel LED driver
with I2C interface, individual brightness control, and hardware-assisted
blink/gradation features.

Signed-off-by: Edelweise Escala 
Link: https://patch.msgid.link/20260709-ltc3220-driver-v13-2-9b53237642eb@analog.com
Signed-off-by: Lee Jones

leds: st1202: Validate LED reg property against channel count

2026-07-09T09:52:23+00:00

The reg property from the device tree is used directly as an array index
into chip->leds[] without bounds checking. A value >= ST1202_MAX_LEDS
would cause an out-of-bounds write during probe.

Fixes: 259230378c65 ("leds: Add LED1202 I2C driver")
Signed-off-by: Manuel Fombuena 
Assisted-by: Claude:claude-sonnet-4-6
Link: https://patch.msgid.link/GV1PR08MB849718B43321DB7E5A05D17BC5F52@GV1PR08MB8497.eurprd08.prod.outlook.com
Signed-off-by: Lee Jones

leds: st1202: Disable channel when brightness is set to zero

2026-07-09T09:52:15+00:00

When brightness_set() is called with LED_OFF, only the ILED register is
zeroed; the channel enable bit is left set from probe time. A hardware
channel enabled with ILED=0 still draws a small residual current, causing
a dim glow even when the LED is supposed to be off.

Fix this by splitting st1202_channel_set() into a lockless inner function
__st1202_channel_set() and a locking wrapper, then calling the inner
function from brightness_set() while it already holds the mutex. The
channel is now disabled when value is zero and re-enabled when non-zero,
in the same lock region as the ILED write.

Fixes: 259230378c65 ("leds: Add LED1202 I2C driver")
Signed-off-by: Manuel Fombuena 
Assisted-by: Claude:claude-sonnet-4-6
Link: https://patch.msgid.link/GV1PR08MB8497F11B30FE7D74CAA25135C5F52@GV1PR08MB8497.eurprd08.prod.outlook.com
Signed-off-by: Lee Jones