topic Re: CS42888 | mx6q | sabreAI in i.MX Processors

CS42888 | mx6q | sabreAI

engineer_bsp01 — Thu, 28 Nov 2019 10:47:55 GMT

Hi All,

I am working on custom SabreAI based custom board on android 7.1 platform.

This is our cs42888 codec section which is also based on reference design.

connected AOUT_1P connected to amplifier enabled speaker,and played audio but no audio is getting.

and also played using tinyplay but no result.connected cs42888 to i2c2

sound card is getting.

these is the device tree: mx6qdl-sabreauto.dtsi - Pastebin.com

please support.weidong.sun igorpadykov

Re: CS42888 | mx6q | sabreAI

diegoadrian — Mon, 02 Dec 2019 23:08:31 GMT

Hello,

I reviewing the schematic and the device tree. I have found that your configuration is a little different from our Sabre AI board. I suggest you have the configuration as is configured on our board. Otherwise, we cannot guarantee if it could work.

On the schematic, the only difference is that we have connected the ESAI_RST_B pin to a pull-up resistor.

Regarding the device tree. I suggest you make the following configurations, this is how it is programmed our device tree.

i2c@021a4000 {
 #address-cells = <0x1>;
 #size-cells = <0x0>;
 compatible = "fsl,imx6q-i2c", "fsl,imx21-i2c";
 reg = <0x21a4000 0x4000>;
 interrupts = <0x0 0x25 0x4>;
 clocks = <0x3 0x7e>;
 status = "okay";
 clock-frequency = <0x186a0>;
 pinctrl-names = "default";
 pinctrl-0 = <0x30>;
        
        cs42888@48 {
  compatible = "cirrus,cs42888";
  reg = <0x48>;
  clocks = <0x33>;
  clock-names = "mclk";
  VA-supply = <0x34>;
  VD-supply = <0x34>;
  VLS-supply = <0x34>;
  VLC-supply = <0x34>;
  linux,phandle = <0x50>;
  phandle = <0x50>;
  };


‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

regulator@2 {
 compatible = "regulator-fixed";
 reg = <0x2>;
 regulator-name = "cs42888_supply";
 regulator-min-microvolt = <0x325aa0>;
 regulator-max-microvolt = <0x325aa0>;
 regulator-always-on;
 linux,phandle = <0x34>;
 phandle = <0x34>;
};
‍‍‍‍‍‍‍‍‍‍

sound-cs42888 {
 compatible = "fsl,imx6-sabreauto-cs42888", "fsl,imx-audio-cs42888";
 model = "imx-cs42888";
 esai-controller = <0x4e>;
 asrc-controller = <0x4f>;
 audio-codec = <0x50>;
};‍‍‍‍‍‍‍

Hope this information could help you.

Best regards,

Diego.

Re: CS42888 | mx6q | sabreAI

engineer_bsp01 — Tue, 03 Dec 2019 10:20:14 GMT

Hi diegoadrian,

Thank you for your response.

Can you share complete device tree of the same mx6qdl-sabreauto.dtsi

Regards,

Richu

Re: CS42888 | mx6q | sabreAI

diegoadrian — Tue, 03 Dec 2019 21:04:38 GMT

Hello,

Please find it attached.

Best regards,

Diego.