Commit 5231804c authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'leds_for_4.18-rc1' of... 

Merge tag 'leds_for_4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds

Pull LED updates from Jacek Anaszewski:
 "This was quite a fruitful cycle, taking into account usual traffic on
  linux-leds list, as we managed to merge three new LED class drivers.

  New LED class drivers with related DT bindings:
   - add LED driver for CR0014114 board
   - add Spreadtrum SC27xx breathing light controller driver
   - introduce the lm3601x LED driver

  LED class fix:
   - ensure workqueue is initialized before setting brightness

  Improvements and fixes to existing LED class drivers:
   - fix return value check in sc27xx_led_probe()
   - use sysfs_match_string() helper in wm831x_status_src_store()"

* tag 'leds_for_4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
  leds: class: ensure workqueue is initialized before setting brightness
  leds: lm3601x: Introduce the lm3601x LED driver
  dt: bindings: lm3601x: Introduce the lm3601x driver
  leds: sc27xx: Fix return value check in sc27xx_led_probe()
  leds: Add Spreadtrum SC27xx breathing light controller driver
  dt-bindings: leds: Add SC27xx breathing light controller documentation
  leds: wm831x-status: Use sysfs_match_string() helper
  leds: add LED driver for CR0014114 board
  dt-bindings: Add vendor prefix and docs for CR0014114
parents 2158091d 6d71021a

Documentation/devicetree/bindings/leds/leds-cr0014114.txt

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Crane Merchandising System - cr0014114 LED driver

-------------------------------------------------



This LED Board is widely used in vending machines produced

by Crane Merchandising Systems.



Required properties:

- compatible: "crane,cr0014114"



Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt

apply. In particular, "reg" and "spi-max-frequency" properties must be given.



LED sub-node properties:

- label :

	see Documentation/devicetree/bindings/leds/common.txt

- linux,default-trigger : (optional)

	see Documentation/devicetree/bindings/leds/common.txt



Example

-------



led-controller@0 {

	compatible = "crane,cr0014114";

	reg = <0>;

	spi-max-frequency = <50000>;

	#address-cells = <1>;

	#size-cells = <0>;



	led@0 {

		reg = <0>;

		label = "red:coin";

	};

	led@1 {

		reg = <1>;

		label = "green:coin";

	};

	led@2 {

		reg = <2>;

		label = "blue:coin";

	};

	led@3 {

		reg = <3>;

		label = "red:bill";

	};

	led@4 {

		reg = <4>;

		label = "green:bill";

	};

	led@5 {

		reg = <5>;

		label = "blue:bill";

	};

	...

};

Documentation/devicetree/bindings/leds/leds-lm3601x.txt

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* Texas Instruments - lm3601x Single-LED Flash Driver



The LM3601X are ultra-small LED flash drivers that

provide a high level of adjustability.



Required properties:

	- compatible : Can be one of the following

		"ti,lm36010"

		"ti,lm36011"

	- reg : I2C slave address

	- #address-cells : 1

	- #size-cells : 0



Required child properties:

	- reg : 0 - Indicates a IR mode

		1 - Indicates a Torch (white LED) mode



Required properties for flash LED child nodes:

	See Documentation/devicetree/bindings/leds/common.txt

	- flash-max-microamp : Range from 11mA - 1.5A

	- flash-max-timeout-us : Range from 40ms - 1600ms

	- led-max-microamp : Range from 2.4mA - 376mA



Optional child properties:

	- label : see Documentation/devicetree/bindings/leds/common.txt



Example:

led-controller@64 {

	compatible = "ti,lm36010";

	#address-cells = <1>;

	#size-cells = <0>;

	reg = <0x64>;



	led@0 {

		reg = <1>;

		label = "white:torch";

		led-max-microamp = <376000>;

		flash-max-microamp = <1500000>;

		flash-max-timeout-us = <1600000>;

	};

}



For more product information please see the links below:

http://www.ti.com/product/LM36010

http://www.ti.com/product/LM36011

Documentation/devicetree/bindings/leds/leds-sc27xx-bltc.txt

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LEDs connected to Spreadtrum SC27XX PMIC breathing light controller



The SC27xx breathing light controller supports to 3 outputs:

red LED, green LED and blue LED. Each LED can work at normal

PWM mode or breath light mode.



Required properties:

- compatible: Should be "sprd,sc2731-bltc".

- #address-cells: Must be 1.

- #size-cells: Must be 0.

- reg: Specify the controller address.



Required child properties:

- reg: Port this LED is connected to.



Optional child properties:

- label: See Documentation/devicetree/bindings/leds/common.txt.



Examples:



led-controller@200 {

	compatible = "sprd,sc2731-bltc";

	#address-cells = <1>;

	#size-cells = <0>;

	reg = <0x200>;



	led@0 {

		label = "red";

		reg = <0x0>;

	};



	led@1 {

		label = "green";

		reg = <0x1>;

	};



	led@2 {

		label = "blue";

		reg = <0x2>;

	};

};

Documentation/devicetree/bindings/vendor-prefixes.txt

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@@ -75,6 +75,7 @@ cnxt Conexant Systems, Inc. 
compulab	CompuLab Ltd.

cortina	Cortina Systems, Inc.

cosmic	Cosmic Circuits

crane	Crane Connectivity Solutions

creative	Creative Technology Ltd

crystalfontz	Crystalfontz America, Inc.

cubietech	Cubietech, Ltd.

drivers/leds/Kconfig

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@@ -104,6 +104,19 @@ config LEDS_CPCAP 
	  This option enables support for LEDs offered by Motorola's

	  CPCAP PMIC.



config LEDS_CR0014114

	tristate "LED Support for Crane CR0014114"

	depends on LEDS_CLASS

	depends on SPI

	depends on OF

	help

	  This option enables support for CR0014114 LED Board which

	  is widely used in vending machines produced by

	  Crane Merchandising Systems.



	  To compile this driver as a module, choose M here: the module

	  will be called leds-cr0014114.



config LEDS_LM3530

	tristate "LCD Backlight driver for LM3530"

	depends on LEDS_CLASS
@@ -145,6 +158,15 @@ config LEDS_LM3692X 
	  This option enables support for the TI LM3692x family

	  of white LED string drivers used for backlighting.



config LEDS_LM3601X

	tristate "LED support for LM3601x Chips"

	depends on LEDS_CLASS && I2C

	depends on LEDS_CLASS_FLASH

	select REGMAP_I2C

	help

	  This option enables support for the TI LM3601x family

	  of flash, torch and indicator classes.



config LEDS_LOCOMO

	tristate "LED Support for Locomo device"

	depends on LEDS_CLASS
@@ -647,6 +669,17 @@ config LEDS_IS31FL32XX 
	  LED controllers. They are I2C devices with multiple constant-current

	  channels, each with independent 256-level PWM control.



config LEDS_SC27XX_BLTC

	tristate "LED support for the SC27xx breathing light controller"

	depends on LEDS_CLASS && MFD_SC27XX_PMIC

	depends on OF

	help

	  Say Y here to include support for the SC27xx breathing light controller

	  LEDs.



	  This driver can also be built as a module. If so the module will be

	  called leds-sc27xx-bltc.



comment "LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)"



config LEDS_BLINKM

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