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This patch adds syscon property for specifying soc-glue core into DT binding documentation. Currently, soc-glue core is used for changing the state of S/PDIF signal output pin to signal output state or Hi-Z state. If you don't need to use features on soc-glue described above you can ommit this property. Signed-off-by: Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com> Signed-off-by: Mark Brown <broonie@kernel.org>
46 lines
1.6 KiB
Plaintext
46 lines
1.6 KiB
Plaintext
Socionext UniPhier SoC audio driver
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The Socionext UniPhier audio subsystem consists of I2S and S/PDIF blocks in
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the same register space.
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Required properties:
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- compatible : should be one of the following:
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"socionext,uniphier-ld11-aio"
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"socionext,uniphier-ld20-aio"
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"socionext,uniphier-pxs2-aio"
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- reg : offset and length of the register set for the device.
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- interrupts : should contain I2S or S/PDIF interrupt.
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- pinctrl-names : should be "default".
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- pinctrl-0 : defined I2S signal pins for an external codec chip.
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- clock-names : should include following entries:
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"aio"
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- clocks : a list of phandle, should contain an entry for each
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entry in clock-names.
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- reset-names : should include following entries:
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"aio"
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- resets : a list of phandle, should contain an entry for each
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entry in reset-names.
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- #sound-dai-cells: should be 1.
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Optional properties:
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- socionext,syscon: a phandle, should contain soc-glue.
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The soc-glue is used for changing mode of S/PDIF signal pin
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to Output from Hi-Z. This property is optional if you use
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I2S signal pins only.
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Example:
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audio {
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compatible = "socionext,uniphier-ld20-aio";
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reg = <0x56000000 0x80000>;
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interrupts = <0 144 4>;
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_aout>;
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clock-names = "aio";
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clocks = <&sys_clk 40>;
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reset-names = "aio";
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resets = <&sys_rst 40>;
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#sound-dai-cells = <1>;
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socionext,syscon = <&sg>;
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};
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