some question for porting wm8960 on yocto 1.6.2

[chuyuanchiang]

Hi,

I found this url Porting WM8960 to Android jb4.2.2  about porting the wm8960 in android (kernel version is 3.0.35)

but in yocto 1.6.2 that is using device tree and 3.10.53 kernel.

I try port it, but the AUD3_TXD still not output any signal.

the following is my device tree for sound part:

	sound {
		compatible = "fsl,imx-audio-wm8960";
		model = "wm8960-audio";
		cpu-dai = <&ssi2>;
		audio-codec = <&codec>;
		codec-master;
		gpr = <&gpr>;
		audio-routing =
			"Headset Jack", "HP_L",
			"Headset Jack", "HP_R",
			"Ext Spk", "SPK_LP",
			"Ext Spk", "SPK_LN",
			"Ext Spk", "SPK_RP",
			"Ext Spk", "SPK_RN";
		hp-det = <3 1>;
		hp-det-gpios = <&gpio7 8 0>;
		mic-det-gpios = <&gpio1 9 0>;
	};

	codec: wm8960@1a {
		compatible = "wlf,wm8960";
		reg = <0x1a>;
		status = "okay";
		clocks = <&clks 201>;
		clock-names = "mclk";
		wlf,shared-lrclk;

       };

&audmux {

  pinctrl-names = "default";

  pinctrl-0 = <&pinctrl_audmux_wcp>;

  status = "okay";

  ssi2 {

  fsl,audmux-port = <MX31_AUDMUX_PORT2_SSI1>;

  fsl,port-config = <

  (IMX_AUDMUX_V2_PTCR_TFSDIR |

  IMX_AUDMUX_V2_PTCR_SYN |

  IMX_AUDMUX_V2_PTCR_TFSEL(MX31_AUDMUX_PORT3_SSI_PINS_3) |

  IMX_AUDMUX_V2_PTCR_TCLKDIR |

  IMX_AUDMUX_V2_PTCR_TCSEL(MX31_AUDMUX_PORT3_SSI_PINS_3))

  IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT3_SSI_PINS_3)

  >;

  };

  aud3 {

  fsl,audmux-port = <MX31_AUDMUX_PORT3_SSI_PINS_3>;

  fsl,port-config = <

  IMX_AUDMUX_V2_PTCR_SYN

  IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT2_SSI1)

  >;

  };

};

Dose any one have idea about this?

Thanks,

ChuYuan

[Yuri]

   Please refer to Chapter 8 (Porting Audio Codecs to a Custom Board)

of “i.MX_6_BSP_Porting_Guide.pdf” in Linux BSP documentation

http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=IMX6_SW

Recent documentation may be found in L3.10.28.

http://www.freescale.com/webapp/Download?colCode=L3.14.28_1.0.0_iMX6QDLS_BUNDLE

Have a great day,
Yuri

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[chuyuanchiang]

Hi Yuri,

I can measure the clock from codec (my codec is i2s master and ssi is i2s slave), but I still not measure the data from AUD3_TXD

do you have experience about how to debug ssi step by step?

Thanks,

ChuYuan

[唯唯胡]

Actually I need some support about the usb device development of K64