Add device tree binding for the WM8985 codec driver.
Signed-off-by: Petr Kulhavy <petr@xxxxxxxxx>
---
Documentation/devicetree/bindings/sound/wm8985.txt | 36 ++++++++++++++++++++++
1 file changed, 36 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/wm8985.txt
diff --git a/Documentation/devicetree/bindings/sound/wm8985.txt b/Documentation/devicetree/bindings/sound/wm8985.txt
new file mode 100644
index 000000000000..788d64766257
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/wm8985.txt
@@ -0,0 +1,36 @@
+Wolfson Microelectronics WM8985 and WM8758 audio codecs
+
+These devices support both I2C and SPI (configured with pin strapping
+on the board).
+
+Required properties:
+
+ - compatible : "wlf,wm8985" or "wlf,wm8758"
+
+ - reg : the I2C address of the device for I2C, the chip select
+ number for SPI.
+
+Pins on the device for linking into audio routes:
+
+ * LIN : left microphone pre-amp negative input
+ * LIP : left microphone pre-amp positive input
+ * RIN : right microphone pre-amp negative input
+ * RIP : right microphone pre-amp positive input
+ * L2 : left line input / secondary pre-amp positive input
+ * R2 : right line input / secondary pre-amp positive input
+ * AUXL : left auxiliary input (WM8985 only)
+ * AUXR : right auxiliary input (WM8985 only)
+
+ * HPL : left headphone / line output (the LOUT1 pin)
+ * HPR : right headphone / line output (the ROUT1 pin)
+ * SPKL : left headphone / line output (the LOUT2 pin)
+ * SPKR : right headphone / line output (the ROUT2 pin)
+ * Mic Bias : microphone bias
+
+
+Example:
+
+wm8758: audio-codec@1a {
+ compatible = "wlf,wm8758";
+ reg = <0x1a>;
+};
--
1.9.1
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