forked from Minki/linux
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The TS3A227E is an autonomous audio accessory detection and configuration switch that detects 3-pole or 4-pole audio accessories and configures internal switches to route the signals accordingly. This chip also has built-in support for the new button standard described in the Android "Wired audio headset specification" v1.0. These buttons will be reported on the jack as buttons 0-3 mapped to KEY_MEDIA, KEY_VOLUMEUP, KEY_VOLUMEDOWN, and KEY_VOICE_COMMAND. This will be added as an aux_dev and have the jack passed in from the machine driver. Signed-off-by: Dylan Reid <dgreid@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
27 lines
710 B
Plaintext
27 lines
710 B
Plaintext
Texas Instruments TS3A227E
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Autonomous Audio Accessory Detection and Configuration Switch
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The TS3A227E detect headsets of 3-ring and 4-ring standards and
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switches automatically to route the microphone correctly. It also
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handles key press detection in accordance with the Android audio
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headset specification v1.0.
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Required properties:
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- compatible: Should contain "ti,ts3a227e".
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- reg: The i2c address. Should contain <0x3b>.
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- interrupt-parent: The parent interrupt controller
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- interrupts: Interrupt number for /INT pin from the 227e
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Examples:
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i2c {
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ts3a227e@3b {
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compatible = "ti,ts3a227e";
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reg = <0x3b>;
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interrupt-parent = <&gpio>;
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interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
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};
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};
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