Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / sound / ts3a227e.txt

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+Texas Instruments TS3A227E
+Autonomous Audio Accessory Detection and Configuration Switch
+
+The TS3A227E detect headsets of 3-ring and 4-ring standards and
+switches automatically to route the microphone correctly.  It also
+handles key press detection in accordance with the Android audio
+headset specification v1.0.
+
+Required properties:
+
+ - compatible:         Should contain "ti,ts3a227e".
+ - reg:                        The i2c address. Should contain <0x3b>.
+ - interrupt-parent:   The parent interrupt controller
+ - interrupts:         Interrupt number for /INT pin from the 227e
+
+Optional properies:
+ - ti,micbias:   Intended MICBIAS voltage (datasheet section 9.6.7).
+      Select 0/1/2/3/4/5/6/7 to specify MACBIAS voltage
+      2.1V/2.2V/2.3V/2.4V/2.5V/2.6V/2.7V/2.8V
+      Default value is "1" (2.2V).
+
+Examples:
+
+       i2c {
+               ts3a227e@3b {
+                       compatible = "ti,ts3a227e";
+                       reg = <0x3b>;
+                       interrupt-parent = <&gpio>;
+                       interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
+               };
+       };