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DT: leds: Add flash LED devices related properties 

Addition of a LED Flash class extension entails the need for flash LED
specific device tree properties. The properties being added are:
max-microamp, flash-max-microamp, flash-timeout-microsec.

(cooloney@gmail.com: remove white spaces)

Signed-off-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
This commit is contained in:
Pavel Machek 2014-12-22 14:27:29 -08:00 committed by Bryan Wu
parent 188c901941
commit 13b695f3c4
1 changed files with 16 additions and 0 deletions
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16
Documentation/devicetree/bindings/leds/common.txt
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@ -14,6 +14,15 @@ Optional properties for child nodes:
"ide-disk" - LED indicates disk activity
"timer" - LED flashes at a fixed, configurable rate
- max-microamp : maximum intensity in microamperes of the LED
(torch LED for flash devices)
- flash-max-microamp : maximum intensity in microamperes of the
flash LED; it is mandatory if the LED should
support the flash mode
- flash-timeout-us : timeout in microseconds after which the flash
LED is turned off
Examples:
system-status {
@ -21,3 +30,10 @@ system-status {
linux,default-trigger = "heartbeat";
...
};
camera-flash {
label = "Flash";
max-microamp = <50000>;
flash-max-microamp = <320000>;
flash-timeout-us = <500000>;
}