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This patch adds DT binding documentation for Odroid XU3/4 sound subsystem. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
58 lines
1.9 KiB
Plaintext
58 lines
1.9 KiB
Plaintext
Samsung Exynos Odroid XU3/XU4 audio complex with MAX98090 codec
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Required properties:
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- compatible - "samsung,odroidxu3-audio" - for Odroid XU3 board,
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"samsung,odroidxu4-audio" - for Odroid XU4 board
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- model - the user-visible name of this sound complex
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- 'cpu' subnode with a 'sound-dai' property containing the phandle of the I2S
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controller
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- 'codec' subnode with a 'sound-dai' property containing list of phandles
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to the CODEC nodes, first entry must be corresponding to the MAX98090
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CODEC and the second entry must be the phandle of the HDMI IP block node
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- clocks - should contain entries matching clock names in the clock-names
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property
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- clock-names - should contain following entries:
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- "epll" - indicating the EPLL output clock
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- "i2s_rclk" - indicating the RCLK (root) clock of the I2S0 controller
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- samsung,audio-widgets - this property specifies off-codec audio elements
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like headphones or speakers, for details see widgets.txt
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- samsung,audio-routing - a list of the connections between audio
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components; each entry is a pair of strings, the first being the
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connection's sink, the second being the connection's source;
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valid names for sources and sinks are the MAX98090's pins (as
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documented in its binding), and the jacks on the board
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For Odroid X2:
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"Headphone Jack", "Mic Jack", "DMIC"
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For Odroid U3, XU3:
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"Headphone Jack", "Speakers"
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For Odroid XU4:
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no entries
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Example:
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sound {
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compatible = "samsung,odroidxu3-audio";
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samsung,cpu-dai = <&i2s0>;
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samsung,codec-dai = <&max98090>;
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model = "Odroid-XU3";
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samsung,audio-routing =
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"Headphone Jack", "HPL",
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"Headphone Jack", "HPR",
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"IN1", "Mic Jack",
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"Mic Jack", "MICBIAS";
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clocks = <&clock CLK_FOUT_EPLL>, <&i2s0 CLK_I2S_RCLK_SRC>;
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clock-names = "epll", "sclk_i2s";
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cpu {
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sound-dai = <&i2s0 0>;
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};
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codec {
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sound-dai = <&hdmi>, <&max98090>;
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};
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};
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