Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds

Pull LED driver updates from Jacek Anaszewski:
 "Three new LED class drivers and some minor fixes and improvementes to
  the leds-gpio driver, LED Trigger core and documentation"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
  leds: triggers: Check return value of kobject_uevent_env()
  leds: triggers: Return from led_trigger_set() if there is nothing to do
  leds: gpio: fix and simplify error handling in gpio_leds_create
  leds: gpio: switch to managed version of led_classdev_register
  leds: gpio: fix and simplify reading property "label"
  leds: gpio: simplify gpio_leds_create
  leds: gpio: add helper cdev_to_gpio_led_data
  leds: gpio: fix an unhandled error case in create_gpio_led
  leds: gpio: introduce gpio_blink_set_t
  leds: add driver for Mellanox systems LEDs
  Documentation: move oneshot trigger attributes documentation to ABI
  leds: centralize definition of "default-state" property
  leds: add PM8058 LEDs driver
  leds: pm8058: add device tree bindings
  leds: do not overflow sysfs buffer in led_trigger_show
  leds: make triggers explicitly non-modular
  DT: leds: Add bindings for ISSI is31fl319x
  leds: is31fl319x: 1/3/6/9-channel light effect led driver

Documentation/leds/leds-mlxcpld.txt

@@ -0,0 +1,110 @@
+Kernel driver for Mellanox systems LEDs
+=======================================
+
+Provide system LED support for the nex Mellanox systems:
+"msx6710", "msx6720", "msb7700", "msn2700", "msx1410",
+"msn2410", "msb7800", "msn2740", "msn2100".
+
+Description
+-----------
+Driver provides the following LEDs for the systems "msx6710", "msx6720",
+"msb7700", "msn2700", "msx1410", "msn2410", "msb7800", "msn2740":
+  mlxcpld:fan1:green
+  mlxcpld:fan1:red
+  mlxcpld:fan2:green
+  mlxcpld:fan2:red
+  mlxcpld:fan3:green
+  mlxcpld:fan3:red
+  mlxcpld:fan4:green
+  mlxcpld:fan4:red
+  mlxcpld:psu:green
+  mlxcpld:psu:red
+  mlxcpld:status:green
+  mlxcpld:status:red
+
+ "status"
+  CPLD reg offset: 0x20
+  Bits [3:0]
+
+ "psu"
+  CPLD reg offset: 0x20
+  Bits [7:4]
+
+ "fan1"
+  CPLD reg offset: 0x21
+  Bits [3:0]
+
+ "fan2"
+  CPLD reg offset: 0x21
+  Bits [7:4]
+
+ "fan3"
+  CPLD reg offset: 0x22
+  Bits [3:0]
+
+ "fan4"
+  CPLD reg offset: 0x22
+  Bits [7:4]
+
+ Color mask for all the above LEDs:
+  [bit3,bit2,bit1,bit0] or
+  [bit7,bit6,bit5,bit4]:
+	[0,0,0,0] = LED OFF
+	[0,1,0,1] = Red static ON
+	[1,1,0,1] = Green static ON
+	[0,1,1,0] = Red blink 3Hz
+	[1,1,1,0] = Green blink 3Hz
+	[0,1,1,1] = Red blink 6Hz
+	[1,1,1,1] = Green blink 6Hz
+
+Driver provides the following LEDs for the system "msn2100":
+  mlxcpld:fan:green
+  mlxcpld:fan:red
+  mlxcpld:psu1:green
+  mlxcpld:psu1:red
+  mlxcpld:psu2:green
+  mlxcpld:psu2:red
+  mlxcpld:status:green
+  mlxcpld:status:red
+  mlxcpld:uid:blue
+
+ "status"
+  CPLD reg offset: 0x20
+  Bits [3:0]
+
+ "fan"
+  CPLD reg offset: 0x21
+  Bits [3:0]
+
+ "psu1"
+  CPLD reg offset: 0x23
+  Bits [3:0]
+
+ "psu2"
+  CPLD reg offset: 0x23
+  Bits [7:4]
+
+ "uid"
+  CPLD reg offset: 0x24
+  Bits [3:0]
+
+ Color mask for all the above LEDs, excepted uid:
+  [bit3,bit2,bit1,bit0] or
+  [bit7,bit6,bit5,bit4]:
+	[0,0,0,0] = LED OFF
+	[0,1,0,1] = Red static ON
+	[1,1,0,1] = Green static ON
+	[0,1,1,0] = Red blink 3Hz
+	[1,1,1,0] = Green blink 3Hz
+	[0,1,1,1] = Red blink 6Hz
+	[1,1,1,1] = Green blink 6Hz
+
+ Color mask for uid LED:
+  [bit3,bit2,bit1,bit0]:
+	[0,0,0,0] = LED OFF
+	[1,1,0,1] = Blue static ON
+	[1,1,1,0] = Blue blink 3Hz
+	[1,1,1,1] = Blue blink 6Hz
+
+Driver supports HW blinking at 3Hz and 6Hz frequency (50% duty cycle).
+For 3Hz duty cylce is about 167 msec, for 6Hz is about 83 msec.

Documentation/leds/ledtrig-oneshot.txt

@@ -21,24 +21,8 @@ below:
 
   echo oneshot > trigger
 
-This adds the following sysfs attributes to the LED:
-
-  delay_on - specifies for how many milliseconds the LED has to stay at
-             LED_FULL brightness after it has been armed.
-             Default to 100 ms.
-
-  delay_off - specifies for how many milliseconds the LED has to stay at
-              LED_OFF brightness after it has been armed.
-              Default to 100 ms.
-
-  invert - reverse the blink logic.  If set to 0 (default) blink on for delay_on
-           ms, then blink off for delay_off ms, leaving the LED normally off.  If
-           set to 1, blink off for delay_off ms, then blink on for delay_on ms,
-           leaving the LED normally on.
-           Setting this value also immediately change the LED state.
-
-  shot - write any non-empty string to signal an events, this starts a blink
-         sequence if not already running.
+This adds sysfs attributes to the LED that are documented in:
+Documentation/ABI/testing/sysfs-class-led-trigger-oneshot
 
 Example use-case: network devices, initialization: