From e09b41010ba33a20a87472ee821fa407a5b8da36 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 11 Apr 2016 10:41:07 +0300 Subject: These changes are the raw update to linux-4.4.6-rt14. Kernel sources are taken from kernel.org, and rt patch from the rt wiki download page. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen --- .../devicetree/bindings/iio/light/us5182d.txt | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 kernel/Documentation/devicetree/bindings/iio/light/us5182d.txt (limited to 'kernel/Documentation/devicetree/bindings/iio/light/us5182d.txt') diff --git a/kernel/Documentation/devicetree/bindings/iio/light/us5182d.txt b/kernel/Documentation/devicetree/bindings/iio/light/us5182d.txt new file mode 100644 index 000000000..6f0a53014 --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/iio/light/us5182d.txt @@ -0,0 +1,34 @@ +* UPISEMI us5182d I2C ALS and Proximity sensor + +Required properties: +- compatible: must be "upisemi,usd5182" +- reg: the I2C address of the device + +Optional properties: +- upisemi,glass-coef: glass attenuation factor - compensation factor of + resolution 1000 for material transmittance. +- upisemi,dark-ths: array of 8 elements containing 16-bit thresholds (adc + counts) corresponding to every scale. +- upisemi,upper-dark-gain: 8-bit dark gain compensation factor(4 int and 4 + fractional bits - Q4.4) applied when light > threshold +- upisemi,lower-dark-gain: 8-bit dark gain compensation factor(4 int and 4 + fractional bits - Q4.4) applied when light < threshold + +If the optional properties are not specified these factors will default to the +values in the below example. +The glass-coef defaults to no compensation for the covering material. +The threshold array defaults to experimental values that work with US5182D +sensor on evaluation board - roughly between 12-32 lux. +There will be no dark-gain compensation by default when ALS > thresh +(0 * dark-gain), and a 1.35 compensation factor when ALS < thresh. + +Example: + + usd5182@39 { + compatible = "upisemi,usd5182"; + reg = <0x39>; + upisemi,glass-coef = < 1000 >; + upisemi,dark-ths = /bits/ 16 <170 200 512 512 800 2000 4000 8000>; + upisemi,upper-dark-gain = /bits/ 8 <0x00>; + upisemi,lower-dark-gain = /bits/ 8 <0x16>; + }; -- cgit 1.2.3-korg