Commit Graph

384 Commits

Author SHA1 Message Date
Linus Torvalds
831462ff3e LEDs for for v6.17
- Improvements & Fixes
   * A fix has been implemented in QCOM Flash to prevent incorrect register
     access when the driver is re-bound. This is solved by duplicating a static
     register array during the probe function, which prevents register addresses
     from being miscalculated after multiple binds.
   * The LP50xx driver now correctly handles the 'reg' property in device tree
     child nodes to ensure the multi_index is set correctly. This prevents
     issues where LEDs could be controlled incorrectly if the device tree nodes
     were processed in a different order. An error is returned if the reg
     property is missing or out of range.
   * A Kconfig dependency on between TPS6131x and V4L2_FLASH_LED_CLASS has been
     added to prevent a build failure when the driver is built-in and the V4L2
     flash infrastructure is a loadable module.
   * A potential buffer overflow warning in PCA955x was reported by older GCC
     versions has been fixed by using a more precise format specifier when
     creating the default LED label.
 
 - Cleanups & Refactoring
   * The MAINTAINERS file entry for the TPS6131X flash LED driver has been
     corrected to point to the correct device tree binding file name.
   * A comment in the Flash Class for the flash_timeout setter has been
     corrected to "flash timeout" from "flash duration" for accuracy.
   * The of_led_get() function is no longer exported as it has no users
     outside of its own module.
 
 - Removals
   * The commit to configure LED blink intervals for hardware offload in the
     Netdev Trigger has been reverted. This change was found to break existing
     PHY drivers by putting their LEDs into a permanent, unconditional blinking
     state.
 
 - Device Tree Bindings Updates
   * The binding for LP50xx has been updated to document that the child reg
     property is the index within the LED bank. The example was also updated to
     use correct values.
   * The JNCP5623 binding has been updated to add 0x39 as a valid I2C address,
     as it is used by the NCP5623C variant.
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Merge tag 'leds-next-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds

Pull LED updates from Lee Jones:
 "Improvements & Fixes:

   - A fix for QCOM Flash to prevent incorrect register access when the
     driver is re-bound. This is solved by duplicating a static register
     array during the probe function, which prevents register addresses
     from being miscalculated after multiple binds

   - The LP50xx driver now correctly handles the 'reg' property in
     device tree child nodes to ensure the multi_index is set correctly.
     This prevents issues where LEDs could be controlled incorrectly if
     the device tree nodes were processed in a different order. An error
     is returned if the reg property is missing or out of range

   - Add a Kconfig dependency on between TPS6131x and
     V4L2_FLASH_LED_CLASS to prevent a build failure when the driver is
     built-in and the V4L2 flash infrastructure is a loadable module

   - Fix a potential buffer overflow warning in PCA955x reported by
     older GCC versions by using a more precise format specifier when
     creating the default LED label.

  Cleanups & Refactoring:

   - Correct the MAINTAINERS file entry for the TPS6131X flash LED
     driver to point to the correct device tree binding file name

   - Fix a comment in the Flash Class for the flash_timeout setter to
     "flash timeout" from "flash duration" for accuracy

   - The of_led_get() function is no longer exported as it has no users
     outside of its own module.

  Removals:

   - Revert the commit to configure LED blink intervals for hardware
     offload in the Netdev Trigger. This change was found to break
     existing PHY drivers by putting their LEDs into a permanent,
     unconditional blinking state.

  Device Tree Bindings Updates:

   - Update the binding for LP50xx to document that the child reg
     property is the index within the LED bank. The example was also
     updated to use correct values

   - Update the JNCP5623 binding to add 0x39 as a valid I2C address, as
     it is used by the NCP5623C variant"

* tag 'leds-next-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds:
  dt-bindings: leds: ncp5623: Add 0x39 as a valid I2C address
  Revert "leds: trigger: netdev: Configure LED blink interval for HW offload"
  leds: pca955x: Avoid potential overflow when filling default_label (take 2)
  leds: Unexport of_led_get()
  leds: tps6131x: Add V4L2_FLASH_LED_CLASS dependency
  dt-bindings: leds: lp50xx: Document child reg, fix example
  leds: leds-lp50xx: Handle reg to get correct multi_index
  leds: led-class-flash:: Fix flash_timeout comment
  MAINTAINERS: Adjust file entry in TPS6131X FLASH LED DRIVER
  leds: flash: leds-qcom-flash: Fix registry access after re-bind
2025-07-31 11:54:01 -07:00
Krzysztof Kozlowski
0121898ec0 dt-bindings: Correct indentation and style in DTS example
DTS example in the bindings should be indented with 2- or 4-spaces and
aligned with opening '- |', so correct any differences like 3-spaces or
mixtures 2- and 4-spaces in one binding.

No functional changes here, but saves some comments during reviews of
new patches built on existing code.

Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # For MMC
Acked-by: Lee Jones <lee@kernel.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> # renesas
Link: https://lore.kernel.org/r/20250107131456.247610-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250725100241.120106-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2025-07-28 19:56:29 -05:00
Fabio Estevam
4903924ac7 dt-bindings: leds: ncp5623: Add 0x39 as a valid I2C address
The NCP5623C variant has the I2C address at 0x39 according its datasheet:

https://www.mouser.com/datasheet/2/308/NCP5623C-D-64591.pdf

Make 0x39 a valid I2C address in the dt-binding.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Acked-by: "Rob Herring (Arm)" <robh@kernel.org>
Link: https://lore.kernel.org/r/20250703144644.2878253-1-festevam@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-07-23 10:32:36 +01:00
Johan Adolfsson
1d7a74dfba dt-bindings: leds: lp50xx: Document child reg, fix example
The led child reg node is the index within the bank, document that
and update the example accordingly.
The reg property in child node is limited to 0-2 since there are 3 leds
per bank, previous value in example was speculative.

Signed-off-by: Johan Adolfsson <johan.adolfsson@axis.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250617-led-fix-v7-2-cdbe8efc88fa@axis.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-06-27 13:58:32 +01:00
Linus Torvalds
b546608ea2 LEDs for v6.16
* LED Triggers:
     * Allow writing "default" to the sysfs 'trigger' attribute to set an LED to its default trigger
     * If the default trigger is "none", writing "default" will remove the current trigger
     * Updated sysfs ABI documentation for the new "default" trigger functionality
   * LED KUnit Testing:
     * Provide a skeleton KUnit test suite for the LEDs framework
     * Expand the LED class device registration KUnit test to cover more scenarios, including
       `brightness_get` behavior
     * Add KUnit tests for the LED lookup and get API (`led_add_lookup`, `devm_led_get`)
   * LED Flash Class:
     * Add support for setting flash/strobe duration through a new `duration_set` op and
       `led_set_flash_duration()` function, aligning with `V4L2_CID_FLASH_DURATION`
   * Texas Instruments TPS6131x:
     * Add a new driver for the TPS61310/TPS61311 flash LED controllers
     * The driver supports the device's three constant-current sinks for flash and torch modes
 
   * LED Core:
     * Prevent potential `snprintf()` truncations in LED names by checking for buffer overflows
   * ChromeOS EC LEDs:
     * Avoid a -Wflex-array-member-not-at-end GCC warning by replacing an on-stack flexible structure
       definition with a utility function call
   * Multicolor LEDs:
     * Fix issue where setting multi_intensity while software blinking is active could stop blinking
   * PCA955x LEDs:
     * Avoid potential buffer overflow when creating default labels by changing a field's type to
       `u8` and updating format specifiers
   * PCA995x LEDs:
     * Fix a typo (stray space) in an `of_device_id` entry in the `pca995x_of_match` table
   * Kconfig:
     * Prevent LED drivers from being enabled by default when `COMPILE_TEST` is set
 
   * Device Property API:
     * Split `device_get_child_node_count()` into a new helper `fwnode_get_child_node_count()` that
       doesn't require a device struct, making the API more symmetrical
   * Driver Modernization (using `fwnode_get_child_node_count()`):
     * Update `leds-pwm-multicolor`, `leds-ncp5623` and `leds-ncp5623` to use the new
       `fwnode_get_child_node_count()` helper, removing their custom implementation
     * As above in the USB Type-C TCPM driver
   * Driver Modernization (using new GPIO setter callbacks):
     * Convert `leds-lgm-sso` to use new GPIO line value setter callbacks which return an integer
       for error handling
     * Convert `leds-pca955x`, `leds-pca9532` and `leds-tca6507` to use new GPIO setter callbacks
   * Documentation:
     * Remove the `.rst` extension for `leds-st1202` in the documentation index for consistency
   * LP8860 LEDs:
     * Use `regmap_multi_reg_write()` for EEPROM writes instead of manual looping
     * Use scoped mutex guards and `devm_mutex_init()` to simplify function exits and ensure
       automatic cleanup
     * Remove default register definitions that are unused when regmap caching is not active
     * Use `devm_regulator_get_enable_optional()` to handle the optional regulator, simplifying
       enabling and removing manual disabling
     * Refactor `lp8860_unlock_eeprom()` to only perform the unlock operation, removing the lock
       part and an unnecessary parameter
     * Use a `devm` action to disable the enable-GPIO, simplifying cleanup and error paths, and
       remove the now-empty `.remove()` function
   * Turris Omnia LEDs:
     * Drop unnecessary commas in terminator entries of `struct attribute` and
       `struct of_device_id` arrays
   * MT6370 RGB LEDs:
     * Use the `LINEAR_RANGE()` for defining `struct linear_range` entries to improve robustness
 
   * Texas Instruments TPS6131x:
     * Add new devicetree bindings for the TI TPS61310/TPS61311 flash LED driver
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Merge tag 'leds-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds

Pull LED updates from Lee Jones:
 "LED Triggers:
   - Allow writing "default" to the sysfs 'trigger' attribute to set an
     LED to its default trigger
   - If the default trigger is "none", writing "default" will remove the
     current trigger
   - Updated sysfs ABI documentation for the new "default" trigger
     functionality

  LED KUnit Testing:
   - Provide a skeleton KUnit test suite for the LEDs framework
   - Expand the LED class device registration KUnit test to cover more
     scenarios, including 'brightness_get' behavior
   - Add KUnit tests for the LED lookup and get API ('led_add_lookup',
     'devm_led_get')

  LED Flash Class:
   - Add support for setting flash/strobe duration through a new
     'duration_set' op and 'led_set_flash_duration()' function, aligning
     with 'V4L2_CID_FLASH_DURATION'

  Texas Instruments TPS6131x:
   - Add a new driver for the TPS61310/TPS61311 flash LED controllers
   - The driver supports the device's three constant-current sinks for
     flash and torch modes

  LED Core:
   - Prevent potential 'snprintf()' truncations in LED names by checking
     for buffer overflows

  ChromeOS EC LEDs:
   - Avoid a -Wflex-array-member-not-at-end GCC warning by replacing an
     on-stack flexible structure definition with a utility function call

  Multicolor LEDs:
   - Fix issue where setting multi_intensity while software blinking is
     active could stop blinking

  PCA955x LEDs:
   - Avoid potential buffer overflow when creating default labels by
     changing a field's type to 'u8' and updating format specifiers

  PCA995x LEDs:
   - Fix a typo (stray space) in an 'of_device_id' entry in the
     'pca995x_of_match' table

  Kconfig:
   - Prevent LED drivers from being enabled by default when
     'COMPILE_TEST' is set

  Device Property API:
   - Split 'device_get_child_node_count()' into a new helper
     'fwnode_get_child_node_count()' that doesn't require a device
     struct, making the API more symmetrical

  Driver Modernization (using 'fwnode_get_child_node_count()'):
   - Update 'leds-pwm-multicolor', 'leds-ncp5623' and 'leds-ncp5623' to
     use the new 'fwnode_get_child_node_count()' helper, removing their
     custom implementation
   - As above in the USB Type-C TCPM driver

  Driver Modernization (using new GPIO setter callbacks):
   - Convert 'leds-lgm-sso' to use new GPIO line value setter callbacks
     which return an integer for error handling
   - Convert 'leds-pca955x', 'leds-pca9532' and 'leds-tca6507' to use
     new GPIO setter callbacks

  Documentation:
   - Remove the '.rst' extension for 'leds-st1202' in the documentation
     index for consistency

  LP8860 LEDs:
   - Use 'regmap_multi_reg_write()' for EEPROM writes instead of manual
     looping
   - Use scoped mutex guards and 'devm_mutex_init()' to simplify
     function exits and ensure automatic cleanup
   - Remove default register definitions that are unused when regmap
     caching is not active
   - Use 'devm_regulator_get_enable_optional()' to handle the optional
     regulator, simplifying enabling and removing manual disabling
   - Refactor 'lp8860_unlock_eeprom()' to only perform the unlock
     operation, removing the lock part and an unnecessary parameter
   - Use a 'devm' action to disable the enable-GPIO, simplifying cleanup
     and error paths, and remove the now-empty '.remove()' function

  Turris Omnia LEDs:
   - Drop unnecessary commas in terminator entries of 'struct attribute'
     and 'struct of_device_id' arrays

  MT6370 RGB LEDs:
   - Use the 'LINEAR_RANGE()' for defining 'struct linear_range' entries
     to improve robustness

  Texas Instruments TPS6131x:
   - Add new devicetree bindings for the TI TPS61310/TPS61311 flash LED
     driver"

* tag 'leds-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (31 commits)
  leds: tps6131x: Add support for Texas Instruments TPS6131X flash LED driver
  dt-bindings: leds: Add Texas Instruments TPS6131x flash LED driver
  leds: flash: Add support for flash/strobe duration
  leds: rgb: leds-mt6370-rgb: Improve definition of some struct linear_range
  leds: led-test: Provide tests for the lookup and get infrastructure
  leds: led-test: Fill out the registration test to cover more test cases
  leds: led-test: Remove standard error checking after KUNIT_ASSERT_*()
  leds: pca995x: Fix typo in pca995x_of_match's of_device_id entry
  leds: Provide skeleton KUnit testing for the LEDs framework
  leds: tca6507: Use new GPIO line value setter callbacks
  leds: pca9532: Use new GPIO line value setter callbacks
  leds: pca955x: Use new GPIO line value setter callbacks
  leds: lgm-sso: Use new GPIO line value setter callbacks
  leds: Do not enable by default during compile testing
  leds: turris-omnia: Drop commas in the terminator entries
  leds: lp8860: Disable GPIO with devm action
  leds: lp8860: Only unlock in lp8860_unlock_eeprom()
  leds: lp8860: Enable regulator using enable_optional helper
  leds: lp8860: Remove default regs when not caching
  leds: lp8860: Use new mutex guards to cleanup function exits
  ...
2025-06-03 12:10:31 -07:00
Matthias Fend
0d12bb1a7f dt-bindings: leds: Add Texas Instruments TPS6131x flash LED driver
Document Texas Instruments TPS61310/TPS61311 flash LED driver devicetree
bindings.

Signed-off-by: Matthias Fend <matthias.fend@emfend.at>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250514-leds-tps6131x-v5-1-a4fb9e7f2c47@emfend.at
Signed-off-by: Lee Jones <lee@kernel.org>
2025-05-22 09:24:44 +01:00
Alexander Sverdlin
494d3c55d8 dt-bindings: backlight: add TI LP8864/LP8866 LED-backlight drivers
Add bindings for Texas Instruments' LP8864/LP8866 LED-backlight drivers.
Note that multiple channels in these models are used for load-balancing and
brightness is controlled gobally, so from a user perspective it's only one
LED.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Link: https://lore.kernel.org/r/20241218210829.73191-2-alexander.sverdlin@siemens.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2025-04-22 09:40:08 -05:00
Linus Torvalds
93d5228867 * Apple DWI Backlight:
* Added devicetree bindings for backlight controllers on Apple's
     DWI interface.
   * Added a new driver (apple_dwi_bl) for these controllers found
     on some Apple mobile devices.
   * Added MAINTAINERS entries for the new driver.
 
   * led_bl: Fixed a locking issue by holding the led_access lock
     when calling led_sysfs_disable() during device removal to
     prevent potential warnings.
 
   * Removed unnecessary <linux/fb.h> includes from a bunch of
     drivers.
   * tdo24m: Removed redundant whitespace in Kconfig description.
 
   * pcf50633-backlight: Removed the driver as the underlying
     pcf50633 MFD and s3c24xx platform support were removed.
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Merge tag 'backlight-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight

Pull backlight updates from Lee Jones:

 - Apple DWI Backlight:
    - Added devicetree bindings for backlight controllers on Apple's DWI
      interface.
    - Added a new driver (apple_dwi_bl) for these controllers found on
      some Apple mobile devices.
    - Added MAINTAINERS entries for the new driver.

 - led_bl: Fixed a locking issue by holding the led_access lock when
   calling led_sysfs_disable() during device removal to prevent
   potential warnings.

 - Removed unnecessary <linux/fb.h> includes from a bunch of drivers.

 - tdo24m: Removed redundant whitespace in Kconfig description.

 - pcf50633-backlight: Removed the driver as the underlying pcf50633 MFD
   and s3c24xx platform support were removed.

* tag 'backlight-next-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: (22 commits)
  backlight: pcf50633-backlight: Remove unused driver
  backlight: tdo24m: Eliminate redundant whitespace
  MAINTAINERS: Add entries for Apple DWI backlight controller
  backlight: apple_dwi_bl: Add Apple DWI backlight driver
  dt-bindings: leds: backlight: apple,dwi-bl: Add Apple DWI backlight
  backlight: led_bl: Hold led_access lock when calling led_sysfs_disable()
  backlight: wm831x_bl: Do not include <linux/fb.h>
  backlight: vgg2432a4: Do not include <linux/fb.h>
  backlight: tps65217_bl: Do not include <linux/fb.h>
  backlight: max8925_bl: Do not include <linux/fb.h>
  backlight: lv5207lp: Do not include <linux/fb.h>
  backlight: locomolcd: Do not include <linux/fb.h>
  backlight: hp680_bl: Do not include <linux/fb.h>
  backlight: ep93xx_bl: Do not include <linux/fb.h>
  backlight: da9052_bl: Do not include <linux/fb.h>
  backlight: da903x_bl: Do not include <linux/fb.h>
  backlight: bd6107_bl: Do not include <linux/fb.h>
  backlight: as3711_bl: Do not include <linux/fb.h>
  backlight: adp8870_bl: Do not include <linux/fb.h>
  backlight: adp8860_bl: Do not include <linux/fb.h>
  ...
2025-03-29 14:48:33 -07:00
Barnabás Czémán
9ec336ba05 dt-bindings: leds: qcom-lpg: Document PM8937 PWM compatible
The PM8937 PWM modules are compatible with the PM8916 PWM modules,
document the PM8937 PWM compatible as fallback for the PM8916 PWM.

Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250213-pm8937-pwm-v2-1-49ea59801a33@mainlining.org
Signed-off-by: Lee Jones <lee@kernel.org>
2025-02-20 15:15:10 +00:00
Nick Chan
0508d17506 dt-bindings: leds: backlight: apple,dwi-bl: Add Apple DWI backlight
Add backlight controllers attached via Apple DWI 2-wire interface.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: "Daniel Thompson (RISCstar)" <danielt@kernel.org>
Signed-off-by: Nick Chan <towinchenmi@gmail.com>
Reviewed-by: Neal Gompa <neal@gompa.dev>
Link: https://lore.kernel.org/r/20250214040306.16312-2-towinchenmi@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-02-20 15:14:29 +00:00
Frank Li
346e704278 dt-bindings: leds: Convert leds-tlc591xx.txt to yaml format
Convert binding doc leds-tlc591xx.txt to yaml format to fix below DTB_CHECK
warning.

arch/arm64/boot/dts/freescale/imx8mp-aristainetos3-proton2s.dtb:
  /soc@0/bus@30800000/i2c@30a30000/tlc59108@40: failed to match any schema with compatible: ['ti,tlc59108']

Additional change:
- ref to common.yaml for child nodes.
- limit child's reg to 0 - 7 for ti,tlc59108.
- fix typo 'linux,default_trigger' in example.
- change child node name's prefix to led-.
- change nodename to led-controller.
- fix properties order in example.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250107161628.121685-1-Frank.Li@nxp.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-02-11 15:07:37 +00:00
Alexander Sverdlin
efd435a808 dt-bindings: leds: Convert LP8860 into YAML format
Convert Texas Instruments' LP8860 LED driver bindings into YAML format.

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Acked-by: Andrew Davis <afd@ti.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20241218210631.72997-1-alexander.sverdlin@siemens.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-01-09 10:36:10 +00:00
Vicentiu Galanopulo
599b92fd0e dt-bindings: leds: Add LED1202 LED Controller
The LED1202 is a 12-channel low quiescent current LED driver with:
  * Supply range from 2.6 V to 5 V
  * 20 mA current capability per channel
  * 1.8 V compatible I2C control interface
  * 8-bit analog dimming individual control
  * 12-bit local PWM resolution
  * 8 programmable patterns

If the led node is present in the controller then the channel is
set to active.

Signed-off-by: Vicentiu Galanopulo <vicentiu.galanopulo@remote-tech.co.uk>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20241218183401.41687-3-vicentiu.galanopulo@remote-tech.co.uk
Signed-off-by: Lee Jones <lee@kernel.org>
2025-01-09 10:30:23 +00:00
Marek Behún
2b73a24f32 dt-bindings: leds: cznic,turris-omnia-leds: Allow interrupts property
Extend the cznic,turris-omnia-leds binding with interrupts property,
specifying the global LED brightness changed by button press interrupt.

Signed-off-by: Marek Behún <kabel@kernel.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20241111100355.6978-6-kabel@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-12-12 18:37:36 +00:00
Richard Acayan
a1234b2155 dt-bindings: leds: qcom,spmi-flash-led: Add pm660l compatible
Add the compatible for the flash LED controller on the PM660L PMIC.

Signed-off-by: Richard Acayan <mailingradian@gmail.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20241112024050.669578-7-mailingradian@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-12-12 17:34:33 +00:00
Geert Uytterhoeven
609bc99a44 dt-bindings: leds: class-multicolor: Fix path to color definitions
The LED color definitions have always been in
include/dt-bindings/leds/common.h in upstream.

Fixes: 5c7f8ffe74 ("dt: bindings: Add multicolor class dt bindings documention")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/a3c7ea92e90b77032f2e480d46418b087709286d.1731588129.git.geert+renesas@glider.be
Signed-off-by: Lee Jones <lee@kernel.org>
2024-12-11 12:23:08 +00:00
Linus Torvalds
2fb7eb3d7e - Improved handling of LCD power states and interactions with the fbdev subsystem.
- Introduced new LCD_POWER_ constants to decouple the LCD subsystem from fbdev.
 - Several drivers were updated to use the new LCD_POWER_ constants.
 - Clarified the semantics of the lcd_ops.controls_device callback.
 - Removed unnecessary includes and dependencies.
 - Removed unused notifier functionality.
 - Simplified code with scoped for-each loops.
 - Fixed module autoloading for the ktz8866 driver.
 - Updated device tree bindings to yaml format.
 - Minor cleanups and improvements in various drivers.
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Merge tag 'backlight-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight

Pull backlight updates from Lee Jones:

 - Improve handling of LCD power states and interactions with the fbdev
   subsystem

 - Introduce new LCD_POWER_ constants to decouple the LCD subsystem from
   fbdev

 - Update several drivers to use the new LCD_POWER_ constants

 - Clarify the semantics of the lcd_ops.controls_device callback

 - Remove unnecessary includes and dependencies

 - Remove unused notifier functionality

 - Simplify code with scoped for-each loops

 - Fix module autoloading for the ktz8866 driver

 - Update device tree bindings to yaml format

 - Minor cleanups and improvements in various drivers

* tag 'backlight-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: (33 commits)
  MAINTAINERS: Use Daniel Thompson's korg address for Backlight work
  dt-bindings: backlight: Convert zii,rave-sp-backlight.txt to yaml
  backlight: Remove notifier
  backlight: ktz8866: Fix module autoloading
  backlight: 88pm860x_bl: Simplify with scoped for each OF child loop
  backlight: lcd: Do not include <linux/fb.h> in lcd header
  backlight: lcd: Remove struct fb_videomode from set_mode callback
  backlight: lcd: Replace check_fb with controls_device
  HID: picoLCD: Replace check_fb in favor of struct fb_info.lcd_dev
  fbdev: omap: Use lcd power constants
  fbdev: imxfb: Use lcd power constants
  fbdev: imxfb: Replace check_fb in favor of struct fb_info.lcd_dev
  fbdev: clps711x-fb: Use lcd power constants
  fbdev: clps711x-fb: Replace check_fb in favor of struct fb_info.lcd_dev
  backlight: tdo24m: Use lcd power constants
  backlight: platform_lcd: Use lcd power constants
  backlight: platform_lcd: Remove match_fb from struct plat_lcd_data
  backlight: platform_lcd: Remove include statement for <linux/backlight.h>
  backlight: otm3225a: Use lcd power constants
  backlight: ltv350qv: Use lcd power constants
  ...
2024-11-22 16:29:57 -08:00
Linus Torvalds
93251bdf7a - Removed unused local header files from various drivers.
- Reverted platform driver removal to the original method for consistency.
 - Introduced ordered workqueues for LED events, replacing the less efficient system_wq.
 - Switched to a safer iteration macro in several drivers to prevent potential memory leaks.
 - Fixed a refcounting bug in the mt6360 flash LED driver.
 - Fixed an uninitialized variable in the mt6370_mc_pattern_clear() function.
 - Resolved Smatch warnings in the leds-bcm6328 driver.
 - Addressed a potential NULL pointer dereference in the brightness_show() function.
 - Fixed an incorrect format specifier in the ss4200 driver.
 - Prevented a resource leak in the max5970 driver's probe function.
 - Added support for specifying the number of serial shift bits in the device tree for the BCM63138 family.
 - Implemented multicolor brightness control in the lp5562 driver.
 - Added a device tree property to override the default LED pin polarity.
 - Added a property to specify the default brightness value when the LED is initially on.
 - Set missing timing properties for the ktd2692 driver.
 - Documented the "rc-feedback" trigger for controlling LEDs based on remote control activity.
 - Converted text bindings to YAML for the pca955x driver to enable device tree validation.
 - Removed redundant checks for invalid channel numbers in the lp55xx driver.
 - Updated the MAINTAINERS file with current contact information.
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Merge tag 'leds-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds

PULL LED updates from Lee Jones:

 - Remove unused local header files from various drivers

 - Revert platform driver removal to the original method for consistency

 - Introduce ordered workqueues for LED events, replacing the less
   efficient system_wq

 - Switch to a safer iteration macro in several drivers to prevent
   potential memory leaks

 - Fix a refcounting bug in the mt6360 flash LED driver

 - Fix an uninitialized variable in the mt6370_mc_pattern_clear()
   function

 - Resolve Smatch warnings in the leds-bcm6328 driver

 - Address a potential NULL pointer dereference in the brightness_show()
   function

 - Fix an incorrect format specifier in the ss4200 driver

 - Prevent a resource leak in the max5970 driver's probe function

 - Add support for specifying the number of serial shift bits in the
   device tree for the BCM63138 family

 - Implement multicolor brightness control in the lp5562 driver

 - Add a device tree property to override the default LED pin polarity

 - Add a property to specify the default brightness value when the LED
   is initially on

 - Set missing timing properties for the ktd2692 driver

 - Document the "rc-feedback" trigger for controlling LEDs based on
   remote control activity

 - Convert text bindings to YAML for the pca955x driver to enable device
   tree validation

 - Remove redundant checks for invalid channel numbers in the lp55xx
   driver

 - Update the MAINTAINERS file with current contact information

* tag 'leds-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (46 commits)
  leds: ss4200: Fix the wrong format specifier for 'blinking'
  leds: pwm: Add optional DT property default-brightness
  dt-bindings: leds: pwm: Add default-brightness property
  leds: class: Protect brightness_show() with led_cdev->led_access mutex
  leds: ktd2692: Set missing timing properties
  leds: max5970: Fix unreleased fwnode_handle in probe function
  leds: Introduce ordered workqueue for LEDs events instead of system_wq
  MAINTAINERS: Replace Siemens IPC related bouncing maintainers
  leds: bcm6328: Replace divide condition with comparison for shift value
  leds: lp55xx: Remove redundant test for invalid channel number
  dt-bindings: leds: pca955x: Convert text bindings to YAML
  leds: rgb: leds-mt6370-rgb: Fix uninitialized variable 'ret' in mt6370_mc_pattern_clear
  leds: lp5562: Add multicolor brightness control
  dt-bindings: leds: Add 'active-high' property
  leds: Switch back to struct platform_driver::remove()
  leds: bcm63138: Add some register defines
  leds: bcm63138: Handle shift register config
  leds: bcm63138: Use scopes and guards
  dt-bindings: leds: bcm63138: Add shift register bits
  leds: leds-gpio-register: Reorganize kerneldoc parameter names
  ...
2024-11-22 16:25:20 -08:00
Stanislav Jakubek
131a975aba dt-bindings: mfd: sprd,sc2731: Convert to YAML
Convert the Spreadtrum SC27xx PMIC bindings to DT schema. Adjust the
filename to match the compatible of the only in-tree user, SC2731.
Change #interrupt-cells value to 1, as according to [1] that is the
correct value.
Move partial examples of child nodes in the child node schemas to this new
MFD schema to have one complete example.

[1] https://lore.kernel.org/lkml/b6a32917d1e231277d240a4084bebb6ad91247e3.1550060544.git.baolin.wang@linaro.org/

Signed-off-by: Stanislav Jakubek <stano.jakubek@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Acked-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Link: https://lore.kernel.org/r/efd200c3b5b75405e4e450d064b026f10ae2f8e0.1730709384.git.stano.jakubek@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-11-12 14:48:45 +00:00
George Stark
44e04fb8d6 dt-bindings: leds: pwm: Add default-brightness property
Optional default-brightness property specifies brightness value to be
used if default LED state is on.

Signed-off-by: George Stark <gnstark@salutedevices.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20241105185006.1380166-2-gnstark@salutedevices.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-11-12 12:14:00 +00:00
Ricky CX Wu
f92d2e9334 dt-bindings: leds: pca955x: Convert text bindings to YAML
Convert the text bindings of pca955x to YAML so it could be used to
validate the DTS.

Signed-off-by: Ricky CX Wu <ricky.cx.wu.wiwynn@gmail.com>
Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20241016093857.925467-1-Delphine_CC_Chiu@wiwynn.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-10-31 14:33:59 +00:00
Macpaul Lin
6e357f5726 dt-bindings: mfd: mediatek: mt6397: Convert to DT schema format
Convert the mfd: mediatek: mt6397 binding to DT schema format.

MT6323, MT6358, and MT6397 are PMIC devices with multiple function
subdevices. They share a common PMIC design but have variations in
subdevice combinations.

Key updates in this conversion:

1. RTC:
   - Convert rtc-mt6397.txt and merge into parent MT6397 PMIC DT schema.

2. Regulators:
   - Align to generic name "regulators".
   - Update references from .txt to .yaml for mt6323, mt6358, and mt6397
     regulators.
   - Simplify regulator name labels in device tree examples.

3. Audio Codec:
   - Simplify Audio Codec part with updating compatible items.
   - Align to generic name "audio-codec" for codec and sound subdevices.

4. Clocks:
   - Align to generic name "clocks" for clockbuffer subdevices.

5. LEDs:
   - Convert leds-mt6323.txt and merge into parent MT6397 PMIC DT schema.
   - Update LED binding.

6. Keys:
   - Add detailed descriptions for power and home keys.
   - Add compatible: mediatek,mt6358-keys.

7. Power Controller:
   - Convert mt6323-poweroff.txt and merge into parent MT6397 PMIC DT
     schema.
   - Add #power-domain-cells property to fix dt-binding check error.
   - Clarify "BBPU" as "Baseband power up".

8. Pinctrl:
   - Align to generic name "pinctrl" instead of "pin-controller".

9. Compatible:
   - Drop "mediatek,mt6357" since there is a separated DT Schema
     for PMIC MT6357.

10. Examples:
   - MT6323: Retain complete examples for this PMIC.
   - MT6358 and MT6397: simplify settings in regulators.
    - Preserve "audio-codec", "clocks", "pinctrl", "rtc", and "keys"
      sections as they contain typical settings for different PMICs.

Additional updates:
- MAINTAINERS: Add co-maintainers and reference to
  mfd/mediatek,mt6397.yaml for LED and power-controller drivers.
- input/mediatek,pmic-keys.yaml: Update reference to
  mfd/mediatek,mt6397.yaml.

Signed-off-by: Sen Chu <sen.chu@mediatek.com>
Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20241001104145.24054-3-macpaul.lin@mediatek.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-10-16 09:00:38 +01:00
Frank Li
0eda30af58 dt-bindings: backlight: Convert zii,rave-sp-backlight.txt to yaml
Convert device tree binding doc zii,rave-sp-backlight.txt to yaml format.
Additional Changes:
- Remove mfd parent node at example.
- Ref to backlight's common.yaml

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20241010-zii_yaml-v2-2-0ab730607422@nxp.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-10-15 15:40:41 +01:00
Daniel Golle
c161656b48 dt-bindings: leds: Add 'active-high' property
Other than described in commit c94d178313 ("dt-bindings: net: phy:
Make LED active-low property common") the absence of the 'active-low'
property means not to touch the polarity settings which are inherited
from reset defaults, the bootloader or bootstrap configuration. Hence,
in order to override a LED pin being active-high in case of the default,
bootloader or bootstrap setting being active-low an additional property
'active-high' is required. Document that property and make it mutually
exclusive to the existing 'active-low' property.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/e9b15613a81129ceecb07ec51f71bbe75425ad2e.1728558223.git.daniel@makrotopia.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-10-15 09:58:15 +01:00
Linus Walleij
d19261ffd0 dt-bindings: leds: bcm63138: Add shift register bits
The BCM63138 family of serial LED controllers has a register
where we can set up bits for the shift registers. These are
the number of rounds the bits need to be shifted before all
bits have been shifted through the external shift registers.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20241010-bcm63138-leds-v4-1-cdb80780a555@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-10-11 08:37:00 +01:00
Heiko Stuebner
267f1ad6fa dt-bindings: leds: Document "rc-feedback" trigger
Document the "rc-feedback" trigger which is used to control LEDs by
remote control device activity. This is an existing trigger used in
existing DTs, document it so validation of those DTs would pass.

It was originally introduced into the Linux kernel in 2013 with
commit 153a60bb0f ("[media] rc: add feedback led trigger for rc keypresses")

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20241007205315.2477060-1-heiko@sntech.de
Signed-off-by: Lee Jones <lee@kernel.org>
2024-10-10 09:37:52 +01:00
Linus Torvalds
f2debe057f - Limited LED current based on thermal conditions in the QCOM flash LED driver.
- Fixed device child node usage in the BD2606MVV and PCA995x drivers.
 - Used device_for_each_child_node_scoped() to access child nodes in the IS31FL319X driver.
 - Reset the LED controller during the probe in the LM3601X driver.
 - Used device_for_each_child_node() to access device child nodes in the PCA995X driver.
 - Fixed CONFIG_LEDS_CLASS_MULTICOLOR dependency in the BlinkM driver.
 - Replaced msleep() with usleep_range() in the SUN50I-A100 driver.
 - Used scoped device node handling to simplify error paths in the AAT1290, KTD2692, and MC13783 drivers.
 - Added missing of_node_get for probe duration in the MAX77693 driver.
 - Simplified using for_each_available_child_of_node_scoped() loops when iterating over device nodes.
 - Used devm_clk_get_enabled() helpers in the LP55XX driver.
 - Converted DT bindings from TXT to YAML format for various drivers, including LM3692x and SC2731-BLTC.
 - Set num_leds after allocation in the GPIO driver.
 - Removed irrelevant blink configuration error message in the PCA9532 driver.
 - Fixed module autoloading with MODULE_DEVICE_TABLE() in the Turris Omnia driver.
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Merge tag 'leds-next-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds

Pull LED updates from Lee Jones:

 - Limited LED current based on thermal conditions in the QCOM flash LED
   driver

 - Fixed device child node usage in the BD2606MVV and PCA995x drivers

 - Used device_for_each_child_node_scoped() to access child nodes in the
   IS31FL319X driver

 - Reset the LED controller during the probe in the LM3601X driver

 - Used device_for_each_child_node() to access device child nodes in the
   PCA995X driver

 - Fixed CONFIG_LEDS_CLASS_MULTICOLOR dependency in the BlinkM driver

 - Replaced msleep() with usleep_range() in the SUN50I-A100 driver

 - Used scoped device node handling to simplify error paths in the
   AAT1290, KTD2692, and MC13783 drivers

 - Added missing of_node_get for probe duration in the MAX77693 driver

 - Simplified using for_each_available_child_of_node_scoped() loops when
   iterating over device nodes

 - Used devm_clk_get_enabled() helpers in the LP55XX driver

 - Converted DT bindings from TXT to YAML format for various drivers,
   including LM3692x and SC2731-BLTC

 - Set num_leds after allocation in the GPIO driver

 - Removed irrelevant blink configuration error message in the PCA9532
   driver

 - Fixed module autoloading with MODULE_DEVICE_TABLE() in the Turris
   Omnia driver

* tag 'leds-next-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (38 commits)
  leds: turris-omnia: Fix module autoloading with MODULE_DEVICE_TABLE()
  leds: pca9532: Remove irrelevant blink configuration error message
  leds: gpio: Set num_leds after allocation
  dt-bindings: leds: Convert leds-lm3692x to YAML format
  leds: lp55xx: Use devm_clk_get_enabled() helpers
  leds: as3645a: Use device_* to iterate over device child nodes
  leds: qcom-lpg: Simplify with scoped for each OF child loop
  leds: turris-omnia: Simplify with scoped for each OF child loop
  leds: sc27xx: Simplify with scoped for each OF child loop
  leds: pca9532: Simplify with scoped for each OF child loop
  leds: netxbig: Simplify with scoped for each OF child loop
  leds: mt6323: Simplify with scoped for each OF child loop
  leds: mc13783: Use scoped device node handling to simplify error paths
  leds: lp55xx: Simplify with scoped for each OF child loop
  leds: is31fl32xx: Simplify with scoped for each OF child loop
  leds: bcm6358: Simplify with scoped for each OF child loop
  leds: bcm6328: Simplify with scoped for each OF child loop
  leds: aw2013: Simplify with scoped for each OF child loop
  leds: 88pm860x: Simplify with scoped for each OF child loop
  leds: max77693: Simplify with scoped for each OF child loop
  ...
2024-09-23 14:20:11 -07:00
Yu-Chun Lin
a7fcc23274 dt-bindings: Fix various typos
Corrected several typos in Documentation/devicetree/bindings files.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Signed-off-by: Yu-Chun Lin <eleanor15x@gmail.com>
Link: https://lore.kernel.org/r/20240905151943.2792056-1-eleanor15x@gmail.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-09-13 14:01:34 -05:00
Frank Li
e5ae4083d3 dt-bindings: leds: Convert leds-lm3692x to YAML format
Additional changes:

 - Add ref to common.yaml for child node.
 - Add I2C node at example.

Fix below warning:
  arch/arm64/boot/dts/freescale/imx8mq-librem5-r2.dtb: /soc@0/bus@30800000/i2c@30a40000/backlight@36:
	failed to match any schema with compatible: ['ti,lm36922']

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240821222001.591111-1-Frank.Li@nxp.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-08-22 14:55:12 +01:00
Marek Vasut
616dbed654 dt-bindings: leds: Document "netdev" trigger
Document the "netdev" trigger which is used to control LEDs by
network device activity. This is an existing trigger used in
existing DTs, document it so validation of those DTs would pass.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240708114653.18566-1-marex@denx.de
Signed-off-by: Lee Jones <lee@kernel.org>
2024-08-16 16:51:20 +01:00
Stanislav Jakubek
29357f8a8c dt-bindings: leds: sc2731-bltc: Convert to YAML
Convert the Spreadtrum SC2731 breathing light controller bindings
to DT schema. Adjust filename to match compatible.

Signed-off-by: Stanislav Jakubek <stano.jakubek@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/ZpKM3yYKJixnRabP@standask-GA-A55M-S2HP
Signed-off-by: Lee Jones <lee@kernel.org>
2024-08-01 13:40:06 +01:00
Pieterjan Camerlynck
7f5e19062c dt-bindings: leds: pca995x: Add new nxp,pca9956b compatible
Add nxp,pca9956b compatible, which has 24 instead of 16 outputs. Adjust
the documentation for the difference.

Reviewed-by: Marek Vasut <marex@denx.de>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Pieterjan Camerlynck <pieterjanca@gmail.com>
Link: https://lore.kernel.org/r/20240711-pca995x-v4-1-702a67148065@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-08-01 13:40:04 +01:00
Linus Torvalds
fea17683c4 - Core Frameworks
- Add new Trigger for Input Events
    - Add new led_mc_set_brightness() call to adapt colour/brightness for mutli-colour LEDs
    - Add new lled_mc_trigger_event() call to call the above based on given trigger conditions
    - Add new led_get_color_name() call, a wrapper around the existing led_colors[] array
    - Add a new flag to avoid automatic renaming of LED devices
 
  - New Drivers
    - Add support for Silergy SY7802 Flash LED Controller
    - Add support for Texas Instruments LP5569 LED Controller
    - Add support for ChromeOS EC LED Controller
 
  - New Device Support
    - Add support for KTD202{6,7} to Kinetic KTD2026/7 LEDs
 
  - Fix-ups
    - Replace ACPI/DT firmware helpers with agnostic variants
    - Make use of resource managed devm_* API calls
    - Device Tree binding adaptions/conversions/creation
    - Constify/staticise applicable data structures
    - Trivial; spelling, whitespace, coding-style adaptions
    - Drop i2c_device_id::driver_data where the value is unused
    - Utilise centrally provided helpers and macros to aid simplicity/duplication
    - Use generic platform device properties instead of OF/ACPI specific ones
    - Consolidate/de-duplicate various functionality
    - Remove superfluous/duplicated/unused sections
    - Make use of the new *_scoped() guard APIs
    - Improve/simplify error handling
 
  - Bug Fixes
    - Flush pending brightness changes before activating the trigger
    - Repair incorrect device naming preventing matches
    - Prevent memory leaks by correctly free resources during error handling routines
    - Repair locking issue causing circular dependency splats and lock-ups
    - Unregister sysfs entries before deactivating triggers to prevent use-after issues
    - Supply a bunch of MODULE_DESCRIPTIONs to silence modpost warnings
    - Use correct return codes expected by the callers
    - Omit set_brightness() error message for a LEDs that support only HW triggers
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Merge tag 'leds-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds

Pull LED updates from Lee Jones:
 "Core Frameworks:
   - New trigger for Input Events
   - New led_mc_set_brightness() call to adapt colour/brightness for
     mutli-colour LEDs
   - New lled_mc_trigger_event() call to call the above based on given
     trigger conditions
   - New led_get_color_name() call, a wrapper around the existing
     led_colors[] array
   - A new flag to avoid automatic renaming of LED devices

  New Drivers:
   - Silergy SY7802 Flash LED Controller
   - Texas Instruments LP5569 LED Controller
   - ChromeOS EC LED Controller

  New Device Support:
   - KTD202{6,7} support for Kinetic KTD2026/7 LEDs

  Fix-ups:
   - Replace ACPI/DT firmware helpers with agnostic variants
   - Make use of resource managed devm_* API calls
   - Device Tree binding adaptions/conversions/creation
   - Constify/staticise applicable data structures
   - Trivial; spelling, whitespace, coding-style adaptions
   - Drop i2c_device_id::driver_data where the value is unused
   - Utilise centrally provided helpers and macros to aid simplicity and
     avoid duplication
   - Use generic platform device properties instead of OF/ACPI specific
     ones
   - Consolidate/de-duplicate various functionality
   - Remove superfluous/duplicated/unused sections
   - Make use of the new *_scoped() guard APIs
   - Improve/simplify error handling

  Bug Fixes:
   - Flush pending brightness changes before activating the trigger
   - Repair incorrect device naming preventing matches
   - Prevent memory leaks by correctly free resources during error
     handling routines
   - Repair locking issue causing circular dependency splats and
     lock-ups
   - Unregister sysfs entries before deactivating triggers to prevent
     use-after issues
   - Supply a bunch of MODULE_DESCRIPTIONs to silence modpost warnings
   - Use correct return codes expected by the callers
   - Omit set_brightness() error message for a LEDs that support only HW
     triggers"

* tag 'leds-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (65 commits)
  leds: leds-lp5569: Enable chip after chip configuration
  leds: leds-lp5569: Better handle enabling clock internal setting
  leds: leds-lp5569: Fix typo in driver name
  leds: flash: leds-qcom-flash: Test the correct variable in init
  leds: leds-lp55xx: Convert mutex lock/unlock to guard API
  leds: leds-lp5523: Convert to sysfs_emit API
  leds: leds-lp5569: Convert to sysfs_emit API
  Revert "leds: led-core: Fix refcount leak in of_led_get()"
  leds: leds-lp5569: Add support for Texas Instruments LP5569
  leds: leds-lp55xx: Drop deprecated defines
  leds: leds-lp55xx: Support ENGINE program up to 128 bytes
  leds: leds-lp55xx: Generalize sysfs master_fader
  leds: leds-lp55xx: Generalize sysfs engine_leds
  leds: leds-lp55xx: Generalize sysfs engine_load and engine_mode
  leds: leds-lp55xx: Generalize stop_engine function
  leds: leds-lp55xx: Generalize turn_off_channels function
  leds: leds-lp55xx: Generalize set_led_current function
  leds: leds-lp55xx: Generalize multicolor_brightness function
  leds: leds-lp55xx: Generalize led_brightness function
  leds: leds-lp55xx: Generalize firmware_loaded function
  ...
2024-07-17 17:51:30 -07:00
Christian Marangi
a6ca48430d dt-bindings: leds-lp55xx: Add new ti,lp5569 compatible
Add new ti,lp5569 compatible, this is similar to national,lp5523 with
slight change to reg order and reg type and advanced way for LED fault.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240626160027.19703-3-ansuelsmth@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-06-26 17:08:30 +01:00
Christian Marangi
468434a059 dt-bindings: leds-lp55xx: Limit pwr-sel property to ti,lp8501
pwr-sel property is specific to ti,lp8501, make it conditional of the
related compatible.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20240626160027.19703-2-ansuelsmth@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-06-26 17:08:30 +01:00
André Apitzsch
a5aff5da79 dt-bindings: leds: Add Silergy SY7802 flash LED
Document Silergy SY7802 flash LED driver devicetree bindings.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: André Apitzsch <git@apitzsch.eu>
Link: https://lore.kernel.org/r/20240624-sy7802-v5-1-7abc9d96bfa6@apitzsch.eu
Signed-off-by: Lee Jones <lee@kernel.org>
2024-06-26 17:04:38 +01:00
Patrick Gansterer
0aaee23d49 dt-bindings: backlight: Add Texas Instruments LM3509
Add Device Tree bindings for Texas Instruments LM3509 - a
High Efficiency Boost for White LED's and/or OLED Displays

Signed-off-by: Patrick Gansterer <paroga@paroga.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20240526105136.721529-2-paroga@paroga.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-31 15:12:06 +01:00
Gianluca Boiano
fc3b23faa1 dt-bindings: leds: leds-qcom-lpg: Add support for PMI8950 PWM
Update leds-qcom-lpg binding to support PMI8950 PWM.

Signed-off-by: Gianluca Boiano <morf3089@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240402-pmi8950-pwm-support-v1-3-1a66899eeeb3@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-04-12 09:47:16 +01:00
Danila Tikhonov
016cfc41fc dt-bindings: leds: qcom-lpg: Document PM6150L compatible
The PM6150L LPG modules are compatible with the PM8150L LPG modules,
document the PM6150L LPG compatible as fallback for the PM8150L LPG.

Signed-off-by: Danila Tikhonov <danila@jiaxyga.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240306172710.59780-2-danila@jiaxyga.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-04-12 09:47:11 +01:00
Laurent Pinchart
a004f24270 dt-bindings: leds: pca963x: Convert text bindings to YAML
Convert the pca963x DT bindings to YAML schema. The existing properties
are kept without modification, but the example is adapted to the latest
common bindings for LEDs.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240305004501.849-1-laurent.pinchart@ideasonboard.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-04-12 09:47:09 +01:00
Linus Torvalds
f5c31bcf60 - Core Frameworks
- Introduce ExpressWire library
 
  - New Drivers
    - Add support for ON Semiconductor NCP5623 RGB LED Driver
 
  - New Device Support
    - Add support for PM660L to Qualcomm's LPG driver
 
  - New Functionality
    - Dynamically load modules required for the default-trigger
    - Add some support for suspend and resume
    - Allow LEDs to remain lit during suspend
 
  - Fix-ups
    - Device Tree binding adaptions/conversions/creation
    - Fix include lists; alphabetise, remove unused, explicitly add used
    - Add new led_match_default_trigger to avoid duplication
    - Add module alias' to aid auto-loading
    - Default to hw_control if no others are specified
    - De-bloat the supported link speed attribute lists
    - Remove superfluous code and simplify overall
    - Constify some variables
 
  - Bug Fixes
    - Prevent kernel panic when renaming the net interface
    - Fix Kconfig related build errors
    - Ensure mutexes are unlocked prior to destroying them
    - Provide clean-up between state changes to avoid invalid state
    - Fix some broken kernel-doc headers
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Merge tag 'leds-next-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds

Pull LED updates from Lee Jones:
 "Core Framework:
   - Introduce ExpressWire library

  New Drivers:
   - Add support for ON Semiconductor NCP5623 RGB LED Driver

  New Device Support:
   - Add support for PM660L to Qualcomm's LPG driver

  New Functionality:
   - Dynamically load modules required for the default-trigger
   - Add some support for suspend and resume
   - Allow LEDs to remain lit during suspend

  Fix-ups:
   - Device Tree binding adaptions/conversions/creation
   - Fix include lists; alphabetise, remove unused, explicitly add used
   - Add new led_match_default_trigger to avoid duplication
   - Add module alias' to aid auto-loading
   - Default to hw_control if no others are specified
   - De-bloat the supported link speed attribute lists
   - Remove superfluous code and simplify overall
   - Constify some variables

  Bug Fixes:
   - Prevent kernel panic when renaming the net interface
   - Fix Kconfig related build errors
   - Ensure mutexes are unlocked prior to destroying them
   - Provide clean-up between state changes to avoid invalid state
   - Fix some broken kernel-doc headers"

* tag 'leds-next-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (41 commits)
  leds: ncp5623: Add MS suffix to time defines
  leds: Add NCP5623 multi-led driver
  dt-bindings: leds: Add NCP5623 multi-LED Controller
  leds: mlxreg: Drop an excess struct mlxreg_led_data member
  leds: leds-mlxcpld: Fix struct mlxcpld_led_priv member name
  leds: lm3601x: Fix struct lm3601_led kernel-doc warnings
  leds: Fix ifdef check for gpio_led_register_device()
  dt-bindings: leds: qcom-lpg: Narrow nvmem for other variants
  dt-bindings: leds: qcom-lpg: Drop redundant qcom,pm8550-pwm in if:then:
  dt-bindings: leds: Add LED_FUNCTION_WAN_ONLINE for Internet access
  leds: sgm3140: Add missing timer cleanup and flash gpio control
  leds: expresswire: Don't depend on NEW_LEDS
  Revert "leds: Only descend into leds directory when CONFIG_NEW_LEDS is set"
  leds: aw2013: Unlock mutex before destroying it
  leds: qcom-lpg: Add QCOM_PBS dependency
  leds: rgb: leds-group-multicolor: Allow LEDs to stay on in suspend
  leds: trigger: netdev: Fix kernel panic on interface rename trig notify
  leds: qcom-lpg: Add PM660L configuration and compatible
  leds: spi-byte: Use devm_led_classdev_register_ext()
  leds: pca963x: Add support for suspend and resume
  ...
2024-03-14 10:38:25 -07:00
Linus Torvalds
f3d8f29d1f - New Drivers
- Add support for Kinetic KTD2801 Backlight
 
  - Fix-ups
    - Fix include lists; alphabetise, remove unused, explicitly add used
    - Device Tree binding adaptions/conversions/creation
    - Use dev_err_probe() to clean-up error paths
    - Use/convert to new/better APIs/helpers/MACROs instead of hand-rolling implementations
 
  - Bug Fixes
    - Fix changes of NULL pointer dereference
    - Remedy a bunch of logic errors
    - Initialise (zero) Backlight properties data structures
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Merge tag 'backlight-next-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight

Pull backlight updates from Lee Jones:
 "New Drivers:
   - Add support for Kinetic KTD2801 Backlight

  Fix-ups:
   - Fix include lists; alphabetise, remove unused, explicitly add used
   - Device Tree binding adaptions/conversions/creation
   - Use dev_err_probe() to clean-up error paths
   - Use/convert to new/better APIs/helpers/MACROs instead of hand-rolling implementations

  Bug Fixes:
   - Fix changes of NULL pointer dereference
   - Remedy a bunch of logic errors
   - Initialise (zero) Backlight properties data structures"

* tag 'backlight-next-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: (32 commits)
  backlight: pandora_bl: Drop unneeded ENOMEM error message
  backlight: lm3630a_bl: Simplify probe return on gpio request error
  backlight: lm3630a_bl: Handle deferred probe
  backlight: as3711_bl: Handle deferred probe
  backlight: bd6107: Handle deferred probe
  backlight: l4f00242t03: Simplify with dev_err_probe()
  backlight: gpio: Simplify with dev_err_probe()
  backlight: lp8788: Fully initialize backlight_properties during probe
  backlight: lm3639: Fully initialize backlight_properties during probe
  backlight: da9052: Fully initialize backlight_properties during probe
  backlight: lm3630a: Use backlight_get_brightness helper in update_status
  backlight: lm3630a: Don't set bl->props.brightness in get_brightness
  backlight: lm3630a: Initialize backlight_properties on init
  backlight: mp3309c: Fully initialize backlight_properties during probe
  backlight: mp3309c: Utilise temporary variable for struct device
  backlight: mp3309c: Use dev_err_probe() instead of dev_err()
  backlight: mp3309c: Make use of device properties
  dt-bindings: backlight: qcom-wled: Fix bouncing email addresses
  backlight: hx8357: Utilise temporary variable for struct device
  backlight: hx8357: Make use of dev_err_probe()
  ...
2024-03-14 10:35:46 -07:00
Jeffrey Hugo
76fa2a1eff dt-bindings: backlight: qcom-wled: Fix bouncing email addresses
Bjorn is no longer at Linaro.  Update his email address to @kernel to
match the .mailmap entry.

The servers for @codeaurora are long retired and messages sent there
will bounce.  Update Kiran's email address to match the .mailmap entry.

This will help anyone that is looking to reach out about this binding
and is not using .mailmap to pre-process their message.

Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240202180151.4116329-1-quic_jhugo@quicinc.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 09:03:28 +00:00
Abdel Alkuor
2c7c70f54f dt-bindings: leds: Add NCP5623 multi-LED Controller
NCP5623 is DC-DC multi-LED controller which can be used for RGB
illumination or backlight LCD display.

Signed-off-by: Abdel Alkuor <alkuor@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240305042049.1533279-1-alkuor@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:17 +00:00
Krzysztof Kozlowski
6c27bf4c6d dt-bindings: leds: qcom-lpg: Narrow nvmem for other variants
Only few variants support PPG and store LPG per-channel data and pattern
in SDAM modules.  Disallow the nvmem for other variants to make the
binding precise.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240226073713.19045-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:14 +00:00
Krzysztof Kozlowski
615d49f552 dt-bindings: leds: qcom-lpg: Drop redundant qcom,pm8550-pwm in if:then:
"qcom,pm8550-pwm" is compatible with "qcom,pm8350c-pwm" (latter used as
fallback), thus it is enough for the "if:then:" clause to check for the
presence of the fallback "qcom,pm8350c-pwm".

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240226073713.19045-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:48:13 +00:00
Anjelique Melendez
d7d0efaf52 dt-bindings: leds: leds-qcom-lpg: Add support for LPG PPG
Update leds-qcom-lpg binding to support LPG PPG.

Signed-off-by: Anjelique Melendez <quic_amelende@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231221185838.28440-3-quic_amelende@quicinc.com
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:47:50 +00:00
Duje Mihanović
922235a9b8 dt-bindings: backlight: Add Kinetic KTD2801 binding
KTD2801 is a LED backlight driver IC found in samsung,coreprimevelte.
The brightness can be set using PWM or the ExpressWire protocol. Add
a DT binding for the KTD2801.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>
Link: https://lore.kernel.org/r/20240125-ktd2801-v5-3-e22da232a825@skole.hr
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-07 08:45:11 +00:00
Conor Dooley
df620d7fab dt-bindings: leds: pwm-multicolour: re-allow active-low
active-low was lifted to the common schema for leds, but it went
unnoticed that the leds-multicolour binding had "additionalProperties:
false" where the other users had "unevaluatedProperties: false", thereby
disallowing active-low for multicolour leds. Explicitly permit it again.

Fixes: c94d178313 ("dt-bindings: net: phy: Make LED active-low property common")
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Lee Jones <lee@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-03-04 08:59:32 +00:00
Christian Marangi
355c6dc37e dt-bindings: net: phy: Document LED inactive high impedance mode
Document LED inactive high impedance mode to set the LED to require high
impedance configuration to be turned OFF.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Lee Jones <lee@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240125203702.4552-3-ansuelsmth@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-01-26 21:03:31 -08:00