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d74e9e7090
Document the device tree binding for the WM8962 codec, and modify the driver to extract platform data from the device tree, if present. Based on work of WM8903 by Stephen Warren <swarren@nvidia.com> Signed-off-by: Nicolin Chen <b42378@freescale.com> Signed-off-by: Mark Brown <broonie@linaro.org>
40 lines
1,023 B
Plaintext
40 lines
1,023 B
Plaintext
WM8962 audio CODEC
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This device supports I2C only.
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Required properties:
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- compatible : "wlf,wm8962"
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- reg : the I2C address of the device.
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Optional properties:
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- spk-mono: This is a boolean property. If present, the SPK_MONO bit
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of R51 (Class D Control 2) gets set, indicating that the speaker is
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in mono mode.
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- mic-cfg : Default register value for R48 (Additional Control 4).
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If absent, the default should be the register default.
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- gpio-cfg : A list of GPIO configuration register values. The list must
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be 6 entries long. If absent, no configuration of these registers is
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performed. And note that only the value within [0x0, 0xffff] is valid.
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Any other value is regarded as setting the GPIO register by its reset
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value 0x0.
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Example:
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codec: wm8962@1a {
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compatible = "wlf,wm8962";
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reg = <0x1a>;
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gpio-cfg = <
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0x0000 /* 0:Default */
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0x0000 /* 1:Default */
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0x0013 /* 2:FN_DMICCLK */
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0x0000 /* 3:Default */
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0x8014 /* 4:FN_DMICCDAT */
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0x0000 /* 5:Default */
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>;
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};
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