ASoC: tas2552: Support TI TAS2552 Amplifier

Support the TI TAS2552 Class D amplifier.

The TAS2552 is a high efficiency Class-D audio
power amplifier with advanced battery current
management and an integrated Class-G boost
The device constantly measures the
current and voltage across the load and provides a
digital stream of this information.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 26 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/sound/tas2552.txt b/Documentation/devicetree/bindings/sound/tas2552.txt
new file mode 100644
index 000000000000..55e2a0af5645
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/tas2552.txt
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+Texas Instruments - tas2552 Codec module
+
+The tas2552 serial control bus communicates through I2C protocols
+
+Required properties:
+        - compatible - One of:
+                "ti,tas2552" - TAS2552
+        - reg -  I2C slave address
+        - supply-*: Required supply regulators are:
+                "vbat"          battery voltage
+                "iovdd"         I/O Voltage
+                "avdd"          Analog DAC Voltage
+
+Optional properties:
+        - enable-gpio - gpio pin to enable/disable the device
+
+Example:
+
+tas2552: tas2552@41 {
+        compatible = "ti,tas2552";
+        reg = <0x41>;
+        enable-gpio = <&gpio4 2 GPIO_ACTIVE_HIGH>;
+};
+
+For more product information please see the link below:
+http://www.ti.com/product/TAS2552