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authorPavel Machek <pavel@ucw.cz>2014-12-22 14:27:29 -0800
committerBryan Wu <cooloney@gmail.com>2015-01-14 10:40:19 -0800
commit13b695f3c41bc691028f255eae2f8e1938377565 (patch)
tree2fac70bb3ce59e19479d51aa97a41ab3f58443d1 /Documentation/devicetree/bindings/leds
parent188c901941efd43cbf21e8f4f9e9a276536b989c (diff)
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>
Diffstat (limited to 'Documentation/devicetree/bindings/leds')
-rw-r--r--Documentation/devicetree/bindings/leds/common.txt16
1 files changed, 16 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/leds/common.txt b/Documentation/devicetree/bindings/leds/common.txt
index 2d88816dd550..a2c3f7abe718 100644
--- a/Documentation/devicetree/bindings/leds/common.txt
+++ b/Documentation/devicetree/bindings/leds/common.txt
@@ -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>;
+}