2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-23 20:53:53 +08:00
linux-next/Documentation/devicetree/bindings/mfd/twl4030-audio.txt
Peter Ujfalusi 019a7e6b7b mfd: twl4030-audio: Add DT support
Support for loading the twl4030 audio module via devicetree.
Sub devices for codec and vibra will be created as mfd devices once the
core MFD driver is loaded when the kernel is booted with a DT blob.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-09-18 15:45:05 +02:00

47 lines
1.2 KiB
Plaintext

Texas Instruments TWL family (twl4030) audio module
The audio module inside the TWL family consist of an audio codec and a vibra
driver.
Required properties:
- compatible : must be "ti,twl4030-audio"
Optional properties, nodes:
Audio functionality:
- codec { }: Need to be present if the audio functionality is used. Within this
section the following options can be used:
- ti,digimic_delay: Delay need after enabling the digimic to reduce artifacts
from the start of the recorded sample (in ms)
-ti,ramp_delay_value: HS ramp delay configuration to reduce pop noise
-ti,hs_extmute: Use external mute for HS pop reduction
-ti,hs_extmute_gpio: Use external GPIO to control the external mute
-ti,offset_cncl_path: Offset cancellation path selection, refer to TRM for the
valid values.
Vibra functionality
- ti,enable-vibra: Need to be set to <1> if the vibra functionality is used. if
missing or it is 0, the vibra functionality is disabled.
Example:
&i2c1 {
clock-frequency = <2600000>;
twl: twl@48 {
reg = <0x48>;
interrupts = <7>; /* SYS_NIRQ cascaded to intc */
interrupt-parent = <&intc>;
twl_audio: audio {
compatible = "ti,twl4030-audio";
ti,enable-vibra = <1>;
codec {
ti,ramp_delay_value = <3>;
};
};
};
};