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https://github.com/brain-hackers/u-boot-brain
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b4bf71456d
For U-Boot we allow a GPIO to be specified to enable the codec. Add this to the relevant binding files. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
55 lines
1.7 KiB
Plaintext
55 lines
1.7 KiB
Plaintext
NVIDIA Tegra audio complex, with MAX98090 CODEC
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Required properties:
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- compatible : "nvidia,tegra-audio-max98090"
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- clocks : Must contain an entry for each entry in clock-names.
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See ../clocks/clock-bindings.txt for details.
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- clock-names : Must include the following entries:
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- pll_a
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- pll_a_out0
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- mclk (The Tegra cdev1/extern1 clock, which feeds the CODEC's mclk)
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- nvidia,model : The user-visible name of this sound complex.
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- nvidia,audio-routing : A list of the connections between audio components.
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Each entry is a pair of strings, the first being the connection's sink,
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the second being the connection's source. Valid names for sources and
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sinks are the MAX98090's pins (as documented in its binding), and the jacks
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on the board:
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* Headphones
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* Speakers
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* Mic Jack
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* Int Mic
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- nvidia,i2s-controller : The phandle of the Tegra I2S controller that's
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connected to the CODEC.
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- nvidia,audio-codec : The phandle of the MAX98090 audio codec.
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Optional properties:
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- nvidia,hp-det-gpios : The GPIO that detect headphones are plugged in
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- nvidia,mic-det-gpios : The GPIO that detect microphones are plugged in
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- codec-enable-gpio : The GPIO used to enable the audio codec
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Example:
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sound {
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compatible = "nvidia,tegra-audio-max98090-venice2",
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"nvidia,tegra-audio-max98090";
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nvidia,model = "NVIDIA Tegra Venice2";
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nvidia,audio-routing =
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"Headphones", "HPR",
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"Headphones", "HPL",
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"Speakers", "SPKR",
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"Speakers", "SPKL",
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"Mic Jack", "MICBIAS",
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"IN34", "Mic Jack";
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nvidia,i2s-controller = <&tegra_i2s1>;
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nvidia,audio-codec = <&acodec>;
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clocks = <&tegra_car TEGRA124_CLK_PLL_A>,
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<&tegra_car TEGRA124_CLK_PLL_A_OUT0>,
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<&tegra_car TEGRA124_CLK_EXTERN1>;
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clock-names = "pll_a", "pll_a_out0", "mclk";
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};
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