Merge tag 'leds-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds

Pull LED updates from Pavel Machek:
 "Okay, so... this one is interesting. RGB LEDs are very common, and we
  need to have some kind of support for them. Multicolor is for
  arbitrary set of LEDs in one package, RGB is for LEDs that can produce
  full range of colors. We do not have real multicolor LED that is not
  RGB in the pipeline, so that one is disabled for now.

  You can expect this saga to continue with next pull requests"

* tag 'leds-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: (37 commits)
  MAINTAINERS: Remove myself as LED subsystem maintainer
  leds: disallow /sys/class/leds/*:multi:* for now
  leds: add RGB color option, as that is different from multicolor.
  Make LEDS_LP55XX_COMMON depend on I2C to fix build errors:
  Documentation: ABI: leds-turris-omnia: document sysfs attribute
  leds: initial support for Turris Omnia LEDs
  dt-bindings: leds: add cznic,turris-omnia-leds binding
  leds: pattern trigger -- check pattern for validity
  leds: Replace HTTP links with HTTPS ones
  leds: trigger: add support for LED-private device triggers
  leds: lp5521: Add multicolor framework multicolor brightness support
  leds: lp5523: Update the lp5523 code to add multicolor brightness function
  leds: lp55xx: Add multicolor framework support to lp55xx
  leds: lp55xx: Convert LED class registration to devm_*
  dt-bindings: leds: Convert leds-lp55xx to yaml
  leds: multicolor: Introduce a multicolor class definition
  leds: Add multicolor ID to the color ID list
  dt: bindings: Add multicolor class dt bindings documention
  leds: lp5523: Fix various formatting issues in the code
  leds: lp55xx: Fix file permissions to use DEVICE_ATTR macros
  ...

2 files changed, 49 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-class-led-driver-turris-omnia b/Documentation/ABI/testing/sysfs-class-led-driver-turris-omnia
new file mode 100644
index 000000000000..795a5de12fc1
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-led-driver-turris-omnia
@@ -0,0 +1,14 @@
+What:		/sys/class/leds/<led>/device/brightness
+Date:		July 2020
+KernelVersion:	5.9
+Contact:	Marek Behún <marek.behun@nic.cz>
+Description:	(RW) On the front panel of the Turris Omnia router there is also
+		a button which can be used to control the intensity of all the
+		LEDs at once, so that if they are too bright, user can dim them.
+
+		The microcontroller cycles between 8 levels of this global
+		brightness (from 100% to 0%), but this setting can have any
+		integer value between 0 and 100. It is therefore convenient to be
+		able to change this setting from software.
+
+		Format: %i
diff --git a/Documentation/ABI/testing/sysfs-class-led-multicolor b/Documentation/ABI/testing/sysfs-class-led-multicolor
new file mode 100644
index 000000000000..eeeddcbdbbe3
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-led-multicolor
@@ -0,0 +1,35 @@
+What:		/sys/class/leds/<led>/brightness
+Date:		March 2020
+KernelVersion:	5.9
+Contact:	Dan Murphy <dmurphy@ti.com>
+Description:	read/write
+		Writing to this file will update all LEDs within the group to a
+		calculated percentage of what each color LED intensity is set
+		to. The percentage is calculated for each grouped LED via the
+		equation below:
+
+		led_brightness = brightness * multi_intensity/max_brightness
+
+		For additional details please refer to
+		Documentation/leds/leds-class-multicolor.rst.
+
+		The value of the LED is from 0 to
+		/sys/class/leds/<led>/max_brightness.
+
+What:		/sys/class/leds/<led>/multi_index
+Date:		March 2020
+KernelVersion:	5.9
+Contact:	Dan Murphy <dmurphy@ti.com>
+Description:	read
+		The multi_index array, when read, will output the LED colors
+		as an array of strings as they are indexed in the
+		multi_intensity file.
+
+What:		/sys/class/leds/<led>/multi_intensity
+Date:		March 2020
+KernelVersion:	5.9
+Contact:	Dan Murphy <dmurphy@ti.com>
+Description:	read/write
+		This file contains array of integers. Order of components is
+		described by the multi_index array. The maximum intensity should
+		not exceed /sys/class/leds/<led>/max_brightness.