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54bcca2973
This chip is used on coral and we need to generate ACPI tables for sound to make it work. Add a driver that does just this (i.e. at present does not actually support playing sound). Signed-off-by: Simon Glass <sjg@chromium.org> [bmeng: Use the correct acpi_irq_polarity enum number] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
23 lines
674 B
Plaintext
23 lines
674 B
Plaintext
Maxim MAX98357A audio DAC
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This node models the Maxim MAX98357A DAC.
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Required properties:
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- compatible : "maxim,max98357a"
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Optional properties:
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- sdmode-gpios : GPIO specifier for the chip's SD_MODE pin.
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If this option is not specified then driver does not manage
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the pin state (e.g. chip is always on).
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- sdmode-delay : specify delay time for SD_MODE pin.
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If this option is specified, which means it's required i2s clocks
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ready before SD_MODE is unmuted in order to avoid the speaker pop noise.
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It's observed that 5ms is sufficient.
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Example:
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max98357a {
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compatible = "maxim,max98357a";
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sdmode-gpios = <&qcom_pinmux 25 0>;
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};
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