ASoC: da9055: Add DT support for CODEC

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

2 files changed, 30 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/sound/da9055.txt b/Documentation/devicetree/bindings/sound/da9055.txt
new file mode 100644
index 000000000000..ed1b7cc6f249
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/da9055.txt
@@ -0,0 +1,22 @@
+* Dialog DA9055 Audio CODEC
+
+DA9055 provides Audio CODEC support (I2C only).
+
+The Audio CODEC device in DA9055 has it's own I2C address which is configurable,
+so the device is instantiated separately from the PMIC (MFD) device.
+
+For details on accompanying PMIC I2C device, see the following:
+Documentation/devicetree/bindings/mfd/da9055.txt
+
+Required properties:
+
+  - compatible: "dlg,da9055-codec"
+  - reg: Specifies the I2C slave address
+
+
+Example:
+
+        codec: da9055-codec@1a {
+                compatible = "dlg,da9055-codec";
+                reg = <0x1a>;
+        };
diff --git a/sound/soc/codecs/da9055.c b/sound/soc/codecs/da9055.c
index 422812613a28..be31f3cfd46e 100644
--- a/sound/soc/codecs/da9055.c
+++ b/sound/soc/codecs/da9055.c
@@ -18,6 +18,8 @@
 #include <linux/regmap.h>
 #include <linux/slab.h>
 #include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
@@ -1536,11 +1538,17 @@ static const struct i2c_device_id da9055_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, da9055_i2c_id);
 
+static const struct of_device_id da9055_of_match[] = {
+        { .compatible = "dlg,da9055-codec", },
+        { }
+};
+
 /* I2C codec control layer */
 static struct i2c_driver da9055_i2c_driver = {
         .driver = {
                 .name = "da9055-codec",
                 .owner = THIS_MODULE,
+                .of_match_table = of_match_ptr(da9055_of_match),
         },
         .probe          = da9055_i2c_probe,
         .remove         = da9055_remove,