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d8f64797c5
Many of the Tegra DT binding documents say nothing about the clocks or clock-names properties, yet those are present and required in DT files. This patch simply updates the documentation file to match the implicit definition of the binding, based on real-world DT content. All Tegra bindings that mention clocks are updated to have consistent wording and formatting of the clock-related properties. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>
53 lines
1.6 KiB
Plaintext
53 lines
1.6 KiB
Plaintext
NVIDIA Tegra audio complex, with RT5640 CODEC
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Required properties:
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- compatible : "nvidia,tegra-audio-rt5640"
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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 RT5640'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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- 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 RT5640 audio codec. This binding
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assumes that AIF1 on the CODEC is connected to Tegra.
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Optional properties:
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- nvidia,hp-det-gpios : The GPIO that detects headphones are plugged in
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Example:
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sound {
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compatible = "nvidia,tegra-audio-rt5640-dalmore",
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"nvidia,tegra-audio-rt5640";
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nvidia,model = "NVIDIA Tegra Dalmore";
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nvidia,audio-routing =
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"Headphones", "HPOR",
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"Headphones", "HPOL",
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"Speakers", "SPORP",
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"Speakers", "SPORN",
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"Speakers", "SPOLP",
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"Speakers", "SPOLN";
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nvidia,i2s-controller = <&tegra_i2s1>;
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nvidia,audio-codec = <&rt5640>;
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nvidia,hp-det-gpios = <&gpio 143 0>; /* GPIO PR7 */
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clocks = <&tegra_car 216>, <&tegra_car 217>, <&tegra_car 120>;
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clock-names = "pll_a", "pll_a_out0", "mclk";
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};
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