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SubjectRe: [PATCH v2 2/7] dt-bindings: ASoC: tlv320aic26: Add device tree binding
On Thu, Mar 21, 2019 at 06:15:44PM -0400, Cormier, Jonathan wrote:
> Add support for the TI tlv320aic26 sound codec
>
> Signed-off-by: Cormier, Jonathan <jcormier@criticallink.com>
> ---
> .../devicetree/bindings/sound/tlv320aic26.txt | 65 +++++++++++++++++++
> 1 file changed, 65 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/sound/tlv320aic26.txt
>
> diff --git a/Documentation/devicetree/bindings/sound/tlv320aic26.txt b/Documentation/devicetree/bindings/sound/tlv320aic26.txt
> new file mode 100644
> index 000000000000..93aa0f76ec0d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/tlv320aic26.txt
> @@ -0,0 +1,65 @@
> +Texas Instruments - tlv320aic26 Codec module
> +
> +The tlv320aic26 serial control bus communicates through I2C protocols
> +
> +Required properties:
> +
> +- compatible - "string" - One of:
> + "ti,tlv320aic26" - TLV320AIC26
> +- reg - <int> - SPI chip select
> +
> +CODEC input pins:
> + * MICIN
> + * AUX
> +
> +CODEC output pins:
> + * HPL
> + * HPR
> +
> +The pins can be used in referring sound node's audio-routing property.
> +
> +Example:
> +
> +tlv320aic26: tlv320aic26@0 {

audio-codec@0

> + compatible = "ti,tlv320aic26";
> + reg = <0>;
> +};
> +
> +&spi0 {
> + pinctrl-names = "default", "sleep";
> + pinctrl-0 = <&spi0_pins>;
> + pinctrl-1 = <&spi0_sleep_pins>;
> +
> + status = "okay";

Don't show status in examples.

> + ti,pindir-d0-out-d1-in = <1>;
> +
> + tlv320aic26: tlv320aic26@1 {

This split is convention, but outside the scope of binding docs, so
please just show the complete node.

> + compatible = "ti,tlv320aic26";
> + reg = <0x1>;
> + status = "okay";
> +
> + spi-max-frequency = <2000000>;
> + spi-cpha;
> + };
> +};
> +
> +sound {
> + compatible = "simple-audio-card";
> + simple-audio-card,name = "AM335x_SND";
> + simple-audio-card,format = "dsp_b";
> + /* SND_SOC_DAIFMT_CBM_CFM */
> + simple-audio-card,bitclock-master = <&tlv320aic26_codec>;
> + simple-audio-card,frame-master = <&tlv320aic26_codec>;
> + /* SND_SOC_DAIFMT_IB_NF */
> + simple-audio-card,bitclock-inversion;
> +
> + simple-audio-card,cpu {
> + sound-dai = <&mcasp1>;
> + system-clock-frequency = <24576000>;
> + };
> +
> + tlv320aic26_codec: simple-audio-card,codec {
> + sound-dai = <&tlv320aic26>;
> + system-clock-frequency = <24576000>;
> + };
> +};
> --
> 2.21.0
>

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