From 535a218d26bed1f565adbb6921226b213e4574d1 Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Sat, 6 Jun 2015 07:10:59 -0400 Subject: [PATCH] media: dt: bindings: Document DT bindings for Analog devices as3645a Document DT bindings for Analog Devices as3645a flash LED controller which also supports an indicator LED. Signed-off-by: Sakari Ailus Acked-by: Jacek Anaszewski Acked-by: Rob Herring Signed-off-by: Mauro Carvalho Chehab --- .../devicetree/bindings/leds/ams,as3645a.txt | 71 +++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/ams,as3645a.txt diff --git a/Documentation/devicetree/bindings/leds/ams,as3645a.txt b/Documentation/devicetree/bindings/leds/ams,as3645a.txt new file mode 100644 index 000000000000..12c5ef26ec73 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/ams,as3645a.txt @@ -0,0 +1,71 @@ +Analog devices AS3645A device tree bindings + +The AS3645A flash LED controller can drive two LEDs, one high current +flash LED and one indicator LED. The high current flash LED can be +used in torch mode as well. + +Ranges below noted as [a, b] are closed ranges between a and b, i.e. a +and b are included in the range. + +Please also see common.txt in the same directory. + + +Required properties +=================== + +compatible : Must be "ams,as3645a". +reg : The I2C address of the device. Typically 0x30. + + +Required properties of the "flash" child node +============================================= + +flash-timeout-us: Flash timeout in microseconds. The value must be in + the range [100000, 850000] and divisible by 50000. +flash-max-microamp: Maximum flash current in microamperes. Has to be + in the range between [200000, 500000] and + divisible by 20000. +led-max-microamp: Maximum torch (assist) current in microamperes. The + value must be in the range between [20000, 160000] and + divisible by 20000. +ams,input-max-microamp: Maximum flash controller input current. The + value must be in the range [1250000, 2000000] + and divisible by 50000. + + +Optional properties of the "flash" child node +============================================= + +label : The label of the flash LED. + + +Required properties of the "indicator" child node +================================================= + +led-max-microamp: Maximum indicator current. The allowed values are + 2500, 5000, 7500 and 10000. + +Optional properties of the "indicator" child node +================================================= + +label : The label of the indicator LED. + + +Example +======= + + as3645a@30 { + reg = <0x30>; + compatible = "ams,as3645a"; + flash { + flash-timeout-us = <150000>; + flash-max-microamp = <320000>; + led-max-microamp = <60000>; + ams,input-max-microamp = <1750000>; + label = "as3645a:flash"; + }; + indicator { + led-max-microamp = <10000>; + label = "as3645a:indicator"; + }; + };