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b9045b9c6b
Add the ability to configure the MFP1->MFP5 registers as GPIOs. In addition adding ALSA controls to get and set the GPIO state. Per the data sheet each MFP can be configured as a GPIO input only, output only or either an input or output. Signed-off-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>
42 lines
1.3 KiB
Plaintext
42 lines
1.3 KiB
Plaintext
Texas Instruments - tlv320aic32x4 Codec module
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The tlv320aic32x4 serial control bus communicates through I2C protocols
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Required properties:
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- compatible - "string" - One of:
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"ti,tlv320aic32x4" TLV320AIC3204
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"ti,tlv320aic32x6" TLV320AIC3206, TLV320AIC3256
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- reg: I2C slave address
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- supply-*: Required supply regulators are:
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"iov" - digital IO power supply
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"ldoin" - LDO power supply
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"dv" - Digital core power supply
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"av" - Analog core power supply
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If you supply ldoin, dv and av are optional. Otherwise they are required
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See regulator/regulator.txt for more information about the detailed binding
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format.
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Optional properties:
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- reset-gpios: Reset-GPIO phandle with args as described in gpio/gpio.txt
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- clocks/clock-names: Clock named 'mclk' for the master clock of the codec.
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See clock/clock-bindings.txt for information about the detailed format.
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- aic32x4-gpio-func - <array of 5 int>
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- Types are defined in include/sound/tlv320aic32x4.h
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Example:
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codec: tlv320aic32x4@18 {
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compatible = "ti,tlv320aic32x4";
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reg = <0x18>;
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clocks = <&clks 201>;
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clock-names = "mclk";
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aic32x4-gpio-func= <
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0xff /* AIC32X4_MFPX_DEFAULT_VALUE */
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0xff /* AIC32X4_MFPX_DEFAULT_VALUE */
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0x04 /* MFP3 AIC32X4_MFP3_GPIO_ENABLED */
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0xff /* AIC32X4_MFPX_DEFAULT_VALUE */
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0x08 /* MFP5 AIC32X4_MFP5_GPIO_INPUT */
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>;
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};
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