diff options
| author | Stephen Warren <swarren@nvidia.com> | 2013-06-12 11:34:30 -0600 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-06-12 19:25:22 +0100 |
| commit | dcad9f031240d59e9e1475a8e5b2cb427da94f6e (patch) | |
| tree | 5bb28075e74375030c5fd2e89531f01660700047 /Documentation/devicetree/bindings/sound/rt5640.txt | |
| parent | 997b05203b0a710e11f9b2732bef2d2fdc1d824b (diff) | |
ASoC: rt5640: add device tree support
Modify the RT5640 driver to parse platform data from device tree. Write
a DT binding document to describe those properties.
Slight re-ordering of rt5640_i2c_probe() to better fit the DT parsing.
Since ldo1_en is optional, guard usage of it with gpio_is_valid(), rather
than open-coding an if (gpio) check.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/sound/rt5640.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/rt5640.txt | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/rt5640.txt b/Documentation/devicetree/bindings/sound/rt5640.txt new file mode 100644 index 000000000000..005bcb24d72d --- /dev/null +++ b/Documentation/devicetree/bindings/sound/rt5640.txt @@ -0,0 +1,30 @@ +RT5640 audio CODEC + +This device supports I2C only. + +Required properties: + +- compatible : "realtek,rt5640". + +- reg : The I2C address of the device. + +- interrupts : The CODEC's interrupt output. + +Optional properties: + +- realtek,in1-differential +- realtek,in2-differential + Boolean. Indicate MIC1/2 input are differential, rather than single-ended. + +- realtek,ldo1-en-gpios : The GPIO that controls the CODEC's LDO1_EN pin. + +Example: + +rt5640 { + compatible = "realtek,rt5640"; + reg = <0x1c>; + interrupt-parent = <&gpio>; + interrupts = <TEGRA_GPIO(W, 3) GPIO_ACTIVE_HIGH>; + realtek,ldo1-en-gpios = + <&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>; +}; |