On Nov 13, 2013, at 9:44 AM, Brian Austin brian.austin@cirrus.com wrote:
Add Device Tree Binding for the CS42L52 Codec
v2 Adds clearer explaination of mic configs and select. Renames bindings to '-' instead of '_'. Definition of GPIO for reset pin.
Signed-off-by: Brian Austin brian.austin@cirrus.com
.../devicetree/bindings/sound/cs42l52.txt | 48 ++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/cs42l52.txt
diff --git a/Documentation/devicetree/bindings/sound/cs42l52.txt b/Documentation/devicetree/bindings/sound/cs42l52.txt new file mode 100644 index 0000000..bd91ecf --- /dev/null +++ b/Documentation/devicetree/bindings/sound/cs42l52.txt @@ -0,0 +1,48 @@ +CS42L52 audio CODEC
+Required properties:
- compatible : "cirrus,cs42l52"
- reg : the I2C address of the device for I2C
+Optional properties:
- reset-gpio : GPIO controller's phandle and the number
of the GPIO used to reset the codec.
- chgfreq : Charge Pump Frequency values. Allowable values of
0x00 through 0x0F.Frequency = (64xFs)/(N+2)
- mica-cfg : MIC A single-ended or differential select.
0x00 = Single-Ended0x01 = Differential
- micb-cfg : MIC B single-ended or differential select.
0x00 = Single-Ended0x01 = Differential
- mica-sel : MIC A single ended input select. For Single-Ended
configuration, select which MIC to use.0x00 = MIC10x01 = MIC2
- micb-sel : MIC B single ended input select. For Single-Ended
configuration, select which MIC to use.0x00 = MIC10x01 = MIC2
- micbias-lvl: Set the output voltage level on the MICBIAS Pin
0x00 = 0.5 x VA0x01 = 0.6 x VA0x02 = 0.7 x VA0x03 = 0.8 x VA0x04 = 0.83 x VA0x05 = 0.91 x VA
these properties should be cirrus, prefixed.
+Example:
+codec: cs42l52@4a {
- compatible = "cirrus,cs42l52";
- reg = <0x4a>;
- reset-gpio = <&gpio 10 0>;
- chgfreq = <0x05>;
- mica-cfg = <0x00>;
- mica-sel = <0x01>;
- micbias-lvl = <0x05>;
+};
1.8.4.rc3
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