ASoC: add rt5665 codec driver

This is the initial codec driver for rt5665.

Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 68 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/sound/rt5665.txt b/Documentation/devicetree/bindings/sound/rt5665.txt
new file mode 100755
index 000000000000..419c89219681
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/rt5665.txt
@@ -0,0 +1,68 @@
+RT5665/RT5666/RT5668 audio CODEC
+
+This device supports I2C only.
+
+Required properties:
+
+- compatible : One of "realtek,rt5665", "realtek,rt5666" or "realtek,rt5668".
+
+- reg : The I2C address of the device.
+
+- interrupts : The CODEC's interrupt output.
+
+Optional properties:
+
+- realtek,in1-differential
+- realtek,in2-differential
+- realtek,in3-differential
+- realtek,in4-differential
+  Boolean. Indicate MIC1/2/3/4 input are differential, rather than single-ended.
+
+- realtek,dmic1-data-pin
+  0: dmic1 is not used
+  1: using GPIO4 pin as dmic1 data pin
+  2: using IN2N pin as dmic2 data pin
+
+- realtek,dmic2-data-pin
+  0: dmic2 is not used
+  1: using GPIO5 pin as dmic2 data pin
+  2: using IN2P pin as dmic2 data pin
+
+- realtek,jd-src
+  0: No JD is used
+  1: using JD1 as JD source
+
+- realtek,ldo1-en-gpios : The GPIO that controls the CODEC's LDO1_EN pin.
+
+Pins on the device (for linking into audio routes) for RT5659/RT5658:
+
+  * DMIC L1
+  * DMIC R1
+  * DMIC L2
+  * DMIC R2
+  * IN1P
+  * IN1N
+  * IN2P
+  * IN2N
+  * IN3P
+  * IN3N
+  * IN4P
+  * IN4N
+  * HPOL
+  * HPOR
+  * LOUTL
+  * LOUTR
+  * MONOOUT
+  * PDML
+  * PDMR
+
+Example:
+
+rt5659 {
+	compatible = "realtek,rt5665";
+	reg = <0x1b>;
+	interrupt-parent = <&gpio>;
+	interrupts = <TEGRA_GPIO(W, 3) GPIO_ACTIVE_HIGH>;
+	realtek,ldo1-en-gpios =
+		<&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>;
+};