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