Add device tree binding for the WM8985 codec driver.
Signed-off-by: Petr Kulhavy petr@barix.com Acked-by: Rob Herring robh@kernel.org --- v1: initial v2: no change
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>; +};