[alsa-devel] [PATCH 1/2] ASoC: wm8985: add device tree binding for WM8985

[Petr Kulhavy]

Add device tree binding for the WM8985 codec driver.

Signed-off-by: Petr Kulhavy <petr at barix.com>
---
 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 at 1a {
+	compatible = "wlf,wm8758";
+	reg = <0x1a>;
+};
-- 
1.9.1