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ASoC: sun4i-i2s: Update binding documentation to include A31

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Add a new compatible for sun4i-i2s driver to handle some
SoCs that have a reset line that must be asserted/deasserted.

This new compatible, "allwinner,sun6i-a31-i2s", requires the
property "resets" which should be a phandle to the reset line.
Except these differences, the compatible is identical to previous one
which will not handle a reset line.

Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Mylène Josserand 2017-02-10 11:00:46 +01:00 committed by Mark Brown
parent e5028a2597
commit f55d404f49
1 changed files with 5 additions and 0 deletions
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5
Documentation/devicetree/bindings/sound/sun4i-i2s.txt
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@ -7,6 +7,7 @@ Required properties:
- compatible: should be one of the followings
- "allwinner,sun4i-a10-i2s"
- "allwinner,sun6i-a31-i2s"
- reg: physical base address of the controller and length of memory mapped
region.
- interrupts: should contain the I2S interrupt.
@ -19,6 +20,10 @@ Required properties:
- "mod" : module clock for the I2S controller
- #sound-dai-cells : Must be equal to 0
Required properties for the following compatibles:
- "allwinner,sun6i-a31-i2s"
- resets: phandle to the reset line for this codec
Example:
i2s0: i2s@01c22400 {