diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-10 20:14:07 +0900 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-10 20:14:07 +0900 |
commit | c7a6ced9d8e8411bdafe83998474d185a79badc3 (patch) | |
tree | bf9a230bfc99165b9d8fa9ed9fc453619bd4a9fb /Documentation | |
parent | a188e7e93a36627fb3f0013f41857ab54f076d04 (diff) | |
parent | 2f73c3927318abe3d7fcaecadfbad89e2d12f881 (diff) | |
download | lwn-c7a6ced9d8e8411bdafe83998474d185a79badc3.tar.gz lwn-c7a6ced9d8e8411bdafe83998474d185a79badc3.zip |
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.txt | 21 |
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, |