ASoC: Add device tree binding for WM8770
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/Documentation/devicetree/bindings/sound/wm8770.txt b/Documentation/devicetree/bindings/sound/wm8770.txt
new file mode 100644
index 0000000..866e00c
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/wm8770.txt
@@ -0,0 +1,16 @@
+WM8770 audio CODEC
+
+This device supports SPI.
+
+Required properties:
+
+ - compatible : "wlf,wm8770"
+
+ - reg : the chip select number.
+
+Example:
+
+codec: wm8770@1 {
+ compatible = "wlf,wm8770";
+ reg = <1>;
+};
diff --git a/sound/soc/codecs/wm8770.c b/sound/soc/codecs/wm8770.c
index 19b92ba..aa05e65 100644
--- a/sound/soc/codecs/wm8770.c
+++ b/sound/soc/codecs/wm8770.c
@@ -14,6 +14,7 @@
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
+#include <linux/of_device.h>
#include <linux/pm.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
@@ -684,6 +685,12 @@
.reg_cache_default = wm8770_reg_defs
};
+static const struct of_device_id wm8770_of_match[] = {
+ { .compatible = "wlf,wm8770", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, wm8770_of_match);
+
#if defined(CONFIG_SPI_MASTER)
static int __devinit wm8770_spi_probe(struct spi_device *spi)
{
@@ -715,6 +722,7 @@
.driver = {
.name = "wm8770",
.owner = THIS_MODULE,
+ .of_match_table = wm8770_of_match,
},
.probe = wm8770_spi_probe,
.remove = __devexit_p(wm8770_spi_remove)