ASoC: Add device tree binding for WM8523

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>

diff --git a/Documentation/devicetree/bindings/sound/wm8523.txt b/Documentation/devicetree/bindings/sound/wm8523.txt
new file mode 100644 (file)
index 0000000..0474618
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/wm8523.txt
@@ -0,0 +1,16 @@
+WM8523 audio CODEC
+
+This device supports I2C only.
+
+Required properties:
+
+  - compatible : "wlf,wm8523"
+
+  - reg : the I2C address of the device.
+
+Example:
+
+codec: wm8523@1a {
+       compatible = "wlf,wm8523";
+       reg = <0x1a>;
+};

diff --git a/sound/soc/codecs/wm8523.c b/sound/soc/codecs/wm8523.c
index 131200917c562b03dc821f3a4b07cc91dd785e8f..52812d1a90e44590baea445c4fbcbe53dd4021b6 100644 (file)
--- a/sound/soc/codecs/wm8523.c
+++ b/sound/soc/codecs/wm8523.c
@@ -20,6 +20,7 @@
 #include <linux/platform_device.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
+#include <linux/of_device.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -514,6 +515,11 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8523 = {
        .volatile_register = wm8523_volatile_register,
 };
 
+static const struct of_device_id wm8523_of_match[] = {
+       { .compatible = "wlf,wm8523" },
+       { },
+};
+
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
 static __devinit int wm8523_i2c_probe(struct i2c_client *i2c,
                                      const struct i2c_device_id *id)
@@ -553,6 +559,7 @@ static struct i2c_driver wm8523_i2c_driver = {
        .driver = {
                .name = "wm8523",
                .owner = THIS_MODULE,
+               .of_match_table = wm8523_of_match,
        },
        .probe =    wm8523_i2c_probe,
        .remove =   __devexit_p(wm8523_i2c_remove),