Merge tag 'leds-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds

Pull LED updates from Pavel Machek:
 "This contains usual small updates to drivers, and removal of PAGE_SIZE
  limits on /sys/class/leds/<led>/trigger.

  We should not be really having that many triggers; but with cpu
  activity triggers we do, and we'll eventually need to fix it, but...
  remove the limit for now"

* tag 'leds-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: (26 commits)
  leds: trigger: netdev: fix handling on interface rename
  leds: an30259a: add a check for devm_regmap_init_i2c
  leds: mlxreg: Fix possible buffer overflow
  leds: pca953x: Use of_device_get_match_data()
  leds: core: Fix leds.h structure documentation
  leds: core: Fix devm_classdev_match to reference correct structure
  leds: core: Remove extern from header
  leds: lm3601x: Convert class registration to device managed
  leds: flash: Add devm_* functions to the flash class
  leds: flash: Remove extern from the header file
  leds: flash: Convert non extended registration to inline
  leds: Kconfig: Be consistent with the usage of "LED"
  leds: remove PAGE_SIZE limit of /sys/class/leds/<led>/trigger
  leds: tlc591xx: update the maximum brightness
  leds: lm3692x: Use flags from LM3692X_BRT_CTRL
  leds: lm3692x: Use flags from LM3692X_BOOST_CTRL
  leds: lm3692x: Handle failure to probe the regulator
  leds: lm3692x: Don't overwrite return value in error path
  leds: lm3692x: Print error value on dev_err
  leds: tlc591xx: use devm_led_classdev_register_ext()
  ...

2 files changed, 208 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-class-led-driver-el15203000 b/Documentation/ABI/testing/sysfs-class-led-driver-el15203000
new file mode 100644
index 000000000000..f520ece9b64c
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-led-driver-el15203000
@@ -0,0 +1,139 @@
+What:		/sys/class/leds/<led>/hw_pattern
+Date:		September 2019
+KernelVersion:	5.5
+Description:
+		Specify a hardware pattern for the EL15203000 LED.
+		The LEDs board supports only predefined patterns by firmware
+		for specific LEDs.
+
+		Breathing mode for Screen frame light tube:
+		"0 4000 1 4000"
+
+		    ^
+		    |
+		Max-|     ---
+		    |    /   \
+		    |   /     \
+		    |  /       \     /
+		    | /         \   /
+		Min-|-           ---
+		    |
+		    0------4------8--> time (sec)
+
+		Cascade mode for Pipe LED:
+		"1 800 2 800 4 800 8 800 16 800"
+
+		      ^
+		      |
+		0 On -|----+                   +----+                   +---
+		      |    |                   |    |                   |
+		  Off-|    +-------------------+    +-------------------+
+		      |
+		1 On -|    +----+                   +----+
+		      |    |    |                   |    |
+		  Off |----+    +-------------------+    +------------------
+		      |
+		2 On -|         +----+                   +----+
+		      |         |    |                   |    |
+		  Off-|---------+    +-------------------+    +-------------
+		      |
+		3 On -|              +----+                   +----+
+		      |              |    |                   |    |
+		  Off-|--------------+    +-------------------+    +--------
+		      |
+		4 On -|                   +----+                   +----+
+		      |                   |    |                   |    |
+		  Off-|-------------------+    +-------------------+    +---
+		      |
+		      0---0.8--1.6--2.4--3.2---4---4.8--5.6--6.4--7.2---8--> time (sec)
+
+		Inverted cascade mode for Pipe LED:
+		"30 800 29 800 27 800 23 800 15 800"
+
+		      ^
+		      |
+		0 On -|    +-------------------+    +-------------------+
+		      |    |                   |    |                   |
+		  Off-|----+                   +----+                   +---
+		      |
+		1 On -|----+    +-------------------+    +------------------
+		      |    |    |                   |    |
+		  Off |    +----+                   +----+
+		      |
+		2 On -|---------+    +-------------------+    +-------------
+		      |         |    |                   |    |
+		  Off-|         +----+                   +----+
+		      |
+		3 On -|--------------+    +-------------------+    +--------
+		      |              |    |                   |    |
+		  Off-|              +----+                   +----+
+		      |
+		4 On -|-------------------+    +-------------------+    +---
+		      |                   |    |                   |    |
+		  Off-|                   +----+                   +----+
+		      |
+		      0---0.8--1.6--2.4--3.2---4---4.8--5.6--6.4--7.2---8--> time (sec)
+
+		Bounce mode for Pipe LED:
+		"1 800 2 800 4 800 8 800 16 800 16 800 8 800 4 800 2 800 1 800"
+
+		      ^
+		      |
+		0 On -|----+                                       +--------
+		      |    |                                       |
+		  Off-|    +---------------------------------------+
+		      |
+		1 On -|    +----+                             +----+
+		      |    |    |                             |    |
+		  Off |----+    +-----------------------------+    +--------
+		      |
+		2 On -|         +----+                   +----+
+		      |         |    |                   |    |
+		  Off-|---------+    +-------------------+    +-------------
+		      |
+		3 On -|              +----+         +----+
+		      |              |    |         |    |
+		  Off-|--------------+    +---------+    +------------------
+		      |
+		4 On -|                   +---------+
+		      |                   |         |
+		  Off-|-------------------+         +-----------------------
+		      |
+		      0---0.8--1.6--2.4--3.2---4---4.8--5.6--6.4--7.2---8--> time (sec)
+
+		Inverted bounce mode for Pipe LED:
+		"30 800 29 800 27 800 23 800 15 800 15 800 23 800 27 800 29 800 30 800"
+
+		      ^
+		      |
+		0 On -|    +---------------------------------------+
+		      |    |                                       |
+		  Off-|----+                                       +--------
+		      |
+		1 On -|----+    +-----------------------------+    +--------
+		      |    |    |                             |    |
+		  Off |    +----+                             +----+
+		      |
+		2 On -|---------+    +-------------------+    +-------------
+		      |         |    |                   |    |
+		  Off-|         +----+                   +----+
+		      |
+		3 On -|--------------+    +---------+    +------------------
+		      |              |    |         |    |
+		  Off-|              +----+         +----+
+		      |
+		4 On -|-------------------+         +-----------------------
+		      |                   |         |
+		  Off-|                   +---------+
+		      |
+		      0---0.8--1.6--2.4--3.2---4---4.8--5.6--6.4--7.2---8--> time (sec)
+
+What:		/sys/class/leds/<led>/repeat
+Date:		September 2019
+KernelVersion:	5.5
+Description:
+		EL15203000 supports only indefinitely patterns,
+		so this file should always store -1.
+
+		For more info, please see:
+		Documentation/ABI/testing/sysfs-class-led-trigger-pattern
diff --git a/Documentation/devicetree/bindings/leds/leds-el15203000.txt b/Documentation/devicetree/bindings/leds/leds-el15203000.txt
new file mode 100644
index 000000000000..182f0035ed28
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-el15203000.txt
@@ -0,0 +1,69 @@
+Crane Merchandising System - EL15203000 LED driver
+--------------------------------------------------
+
+This LED Board (aka RED LEDs board) is widely used in
+coffee vending machines produced by Crane Merchandising Systems.
+The board manages 3 LEDs and supports predefined blinking patterns
+for specific leds.
+
+Vending area LED encoded with symbol 'V' (hex code 0x56).
+Doesn't have any hardware blinking pattern.
+
+Screen light tube LED which surrounds vending machine screen and
+encoded with symbol 'S' (hex code 0x53). Supports blinking breathing pattern.
+
+Water Pipe LED encoded with symbol 'P' (hex code 0x50) and
+actually consists of 5 LEDs that exposed by protocol like one LED.
+Supports next patterns:
+- cascade pattern
+- inversed cascade pattern
+- bounce pattern
+- inversed bounce pattern
+
+Required properties:
+- compatible : "crane,el15203000"
+- #address-cells : must be 1
+- #size-cells : must be 0
+
+Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt
+apply. In particular, "reg" and "spi-max-frequency" properties must be given.
+
+Optional LED sub-node properties:
+- function:
+	see Documentation/devicetree/bindings/leds/common.txt
+- color:
+	see Documentation/devicetree/bindings/leds/common.txt
+
+Example
+-------
+
+#include <dt-bindings/leds/common.h>
+
+led-controller@0 {
+	compatible = "crane,el15203000";
+	reg = <0>;
+	spi-max-frequency = <50000>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	/* water pipe */
+	led@50 {
+		reg = <0x50>;
+		function = "pipe";
+		color = <LED_COLOR_ID_RED>;
+	};
+
+	/* screen frame */
+	led@53 {
+		reg = <0x53>;
+		function = "screen";
+		color = <LED_COLOR_ID_RED>;
+	};
+
+	/* vending area */
+	led@56 {
+		reg = <0x56>;
+		function = "vend";
+		color = <LED_COLOR_ID_RED>;
+	};
+};