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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-10 20:14:07 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-10 20:14:07 +0900
commitc7a6ced9d8e8411bdafe83998474d185a79badc3 (patch)
treebf9a230bfc99165b9d8fa9ed9fc453619bd4a9fb /Documentation
parenta188e7e93a36627fb3f0013f41857ab54f076d04 (diff)
parent2f73c3927318abe3d7fcaecadfbad89e2d12f881 (diff)
downloadlinux-c7a6ced9d8e8411bdafe83998474d185a79badc3.tar.gz
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
Pull LED subsystem update from Bryan Wu.

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds: (24 commits)
  leds: add output driver configuration for pca9633 led driver
  leds: lm3642: Use regmap_update_bits() in lm3642_chip_init()
  leds: Add new LED driver for lm3642 chips
  leds-lp5523: Fix riskiness of the page fault
  leds-lp5523: turn off the LED engines on unloading the driver
  leds-lm3530: Fix smatch warnings
  leds-lm3530: Use devm_regulator_get function
  leds: leds-gpio: adopt pinctrl support
  leds: Add new LED driver for lm355x chips
  leds-lp5523: use the i2c device id rather than fixed name
  leds-lp5523: add new device id for LP55231
  leds-lp5523: support new LP55231 device
  leds: triggers: send uevent when changing triggers
  leds-lp5523: minor code style fixes
  leds-lp5523: change the return type of lp5523_set_mode()
  leds-lp5523: set the brightness to 0 forcely on removing the driver
  leds-lp5523: add channel name in the platform data
  leds: leds-gpio: Use of_get_child_count() helper
  leds: leds-gpio: Use platform_{get,set}_drvdata
  leds: leds-gpio: use of_match_ptr()
  ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/leds/leds-lp5523.txt21
1 files changed, 18 insertions, 3 deletions
diff --git a/Documentation/leds/leds-lp5523.txt b/Documentation/leds/leds-lp5523.txt
index fad2feb8b7ce..c2743f59f9ac 100644
--- a/Documentation/leds/leds-lp5523.txt
+++ b/Documentation/leds/leds-lp5523.txt
@@ -10,8 +10,22 @@ Contact: Samu Onkalo (samu.p.onkalo-at-nokia.com)
 Description
 -----------
 LP5523 can drive up to 9 channels. Leds can be controlled directly via
-the led class control interface. Channels have generic names:
-lp5523:channelx where x is 0...8
+the led class control interface.
+The name of each channel is configurable in the platform data - name and label.
+There are three options to make the channel name.
+
+a) Define the 'name' in the platform data
+To make specific channel name, then use 'name' platform data.
+/sys/class/leds/R1               (name: 'R1')
+/sys/class/leds/B1               (name: 'B1')
+
+b) Use the 'label' with no 'name' field
+For one device name with channel number, then use 'label'.
+/sys/class/leds/RGB:channelN     (label: 'RGB', N: 0 ~ 8)
+
+c) Default
+If both fields are NULL, 'lp5523' is used by default.
+/sys/class/leds/lp5523:channelN  (N: 0 ~ 8)
 
 The chip provides 3 engines. Each engine can control channels without
 interaction from the main CPU. Details of the micro engine code can be found
@@ -46,12 +60,13 @@ Note - chan_nr can have values between 0 and 8.
 
 static struct lp5523_led_config lp5523_led_config[] = {
         {
+		.name		= "D1",
                 .chan_nr        = 0,
                 .led_current    = 50,
 		.max_current    = 130,
         },
 ...
-        }, {
+        {
                 .chan_nr        = 8,
                 .led_current    = 50,
 		.max_current    = 130,