I have an iMX6Q with a wm8962 attached using AUDMUX4 and SSI2, but I am having difficulty getting the sound to generate from the headphone jack.

I have verified the power is working, and we're getting the 24MHz clock signal from CK0 to the codec, and we've played with the alsamixer to un-mute a variety of options, yet we're still unable to get sound from the headphone port.

sound { compatible = "fsl,imx-audio-wm8962"; model = "wm8962-audio"; ssi-controller = <&ssi2>; audio-codec = <&codec>; audio-routing = "Headphone Jack", "HPOUTL", "Headphone Jack", "HPOUTR", "Ext Spk", "SPKOUTL", "Ext Spk", "SPKOUTR", "AMIC", "MICBIAS", "IN3R", "AMIC"; mux-int-port = <2>; mux-ext-port = <4>; };

I beleive the mux-int-port points to ssi2 which should match the ssi-controller = <&ssi2> option I also beleive mux-ext-port = <4> should match the audmux 4 port.

&i2c1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_i2c1>; clock-frequency = <400000>; status = "okay";

codec: wm8962@1a { compatible = "wlf,wm8962"; reg = <0x1a>; clocks = <&clks IMX6QDL_CLK_CKO>; clock-names = "xclk"; DCVDD-supply = <&reg_audio>; DBVDD-supply = <&reg_audio>; AVDD-supply = <&reg_audio>; CPVDD-supply = <&reg_audio>; MICVDD-supply = <&reg_audio>; PLLVDD-supply = <&reg_audio>; SPKVDD1-supply = <&reg_audio>; SPKVDD2-supply = <&reg_audio>; gpio-cfg = < 0x0000 /* 0:Default */ 0x0000 /* 1:Default */ 0x0013 /* 2:FN_DMICCLK */ 0x0000 /* 3:Default */ 0x8014 /* 4:FN_DMICCDAT */ 0x0000 /* 5:Default */

;

}; };

The snippet of my boot log are as follows:

[ 4.359592] snd-soc-dummy snd-soc-dummy: codec register snd-soc-dummy [ 4.359615] snd-soc-dummy snd-soc-dummy: ASoC: dai register snd-soc-dummy #1 [ 4.359625] snd-soc-dummy snd-soc-dummy: ASoC: dynamically register DAI snd-soc-dummy [ 4.359637] snd-soc-dummy snd-soc-dummy: ASoC: Registered DAI 'snd-soc-dummy-dai' [ 4.359744] snd-soc-dummy snd-soc-dummy: ASoC: Registered codec 'snd-soc-dummy' [ 4.359753] snd-soc-dummy snd-soc-dummy: ASoC: platform register snd-soc-dummy [ 4.359775] snd-soc-dummy snd-soc-dummy: ASoC: Registered platform 'snd-soc-dummy' [ 4.365610] wm8962 0-001a: customer id 0 revision F [ 4.382144] wm8962 0-001a: codec register 0-001a [ 4.382170] wm8962 0-001a: ASoC: dai register 0-001a #1 [ 4.382178] wm8962 0-001a: ASoC: dynamically register DAI 0-001a [ 4.382190] wm8962 0-001a: ASoC: Registered DAI 'wm8962' [ 4.382202] wm8962 0-001a: ASoC: Registered codec 'wm8962.0-001a' [ 4.383977] fsl-asoc-card sound: ASoC: binding HiFi

[ 4.384007] fsl-asoc-card sound: ASoC: CPU DAI (null) not registered

This seems like an issue,but it looks like it potentially gets resolved later.

[ 4.386043] fsl-asrc 2034000.asrc: ASoC: dai register 2034000.asrc #1 [ 4.386092] fsl-asrc 2034000.asrc: ASoC: dynamically register DAI 2034000.asrc [ 4.386108] fsl-asrc 2034000.asrc: ASoC: Registered DAI '2034000.asrc' [ 4.386126] fsl-asrc 2034000.asrc: ASoC: platform register 2034000.asrc [ 4.386144] fsl-asrc 2034000.asrc: ASoC: Registered platform '2034000.asrc' [ 4.387439] fsl-ssi-dai 202c000.ssi: No cache defaults, reading back from HW [ 4.388567] fsl-ssi-dai 202c000.ssi: ASoC: Registered platform '202c000.ssi' [ 4.388589] fsl-ssi-dai 202c000.ssi: ASoC: dai register 202c000.ssi #1 [ 4.388597] fsl-ssi-dai 202c000.ssi: ASoC: dynamically register DAI 202c000.ssi [ 4.388610] fsl-ssi-dai 202c000.ssi: ASoC: Registered DAI '202c000.ssi' [ 4.393581] imx-wm8962 sound: ASoC: binding HiFi [ 4.396233] input: WM8962 Beep Generator as /devices/soc0/soc/2100000.aips-bus/21a0000.i2c/i2c-0/0-001a/input/input1 [ 4.442347] imx-wm8962 sound: ASoC: probe wm8962-audio dai link 0 late -2 [ 4.442380] imx-wm8962 sound: ASoC: probe wm8962-audio dai link 0 late -1 [ 4.442392] imx-wm8962 sound: ASoC: probe wm8962-audio dai link 0 late 0 [ 4.442403] imx-wm8962 sound: ASoC: probe wm8962-audio dai link 0 late 1 [ 4.442412] imx-wm8962 sound: ASoC: probe wm8962-audio dai link 0 late 2 [ 4.458756] imx-wm8962 sound: wm8962 <-> 202c000.ssi mapping ok

When trying to play audio through the headphone jack, I unmute the headphones in alsamixer, but when I query the interface, it appears to remain muted.

# amixer -c0 cget numid=24 numid=24,iface=MIXER,name='Headphone Volume' ; type=INTEGER,access=rw---R--,values=2,min=0,max=127,step=0 : values=107,107 | dBscale-min=-121.00dB,step=1.00dB,mute=1

I have tried unmute with a simiar instruction without any luck.

I also noticed that when I run speaker-test -c2 -t wav, I get the following message:

[ 1467.051679] wm8962 0-001a: Failed to read DCS status: -1 Rate set to 48000Hz (requested 48000Hz) Buffer size range from 3840 to 17280 Period size range from 1920 to 1920 Using max buffer size 17280 Periods = 4 was set period_size = 1920 was set buffer_size = 17280 0 - Front Left Time per period = 1.138101 0 - Front Left ^CTransfer failed: Bad address # [ 1474.553646] wm8962 0-001a: Failed to read DSPCLK: -1

I am assuming that being unable to read the DCS -1 is a bad thing. Unfortunatly, after this instruction. we can no longer use alsamixer or the any alsa tool except for the speaker-test app. When running the speaker test a second time I get even more errors:

Stream parameters are 48000Hz, S16_LE, 2 channels WAV file(s) [ 1700.659314] wm8962 0-001a: Unable to sync registers 0x0-0x3. -6 [ 1700.833594] wm8962 0-001a: Failed to read DSPCLK: -1 [ 1700.862662] wm8962 0-001a: ASoC: POST_PMU: HPOUTL PGA event failed: -6 [ 1700.869709] wm8962 0-001a: ASoC: POST_PMU: SPKOUTL PGA event failed: -6 [ 1700.879766] wm8962 0-001a: ASoC: POST_PMU: HPOUTR PGA event failed: -6 [ 1700.888565] wm8962 0-001a: ASoC: POST_PMU: SPKOUTR PGA event failed: -6 [ 1700.922471] wm8962 0-001a: Failed to read DCS status: -1 Rate set to 48000Hz (requested 48000Hz) Buffer size range from 3840 to 17280 Period size range from 1920 to 1920 Using max buffer size 17280 Periods = 4 was set period_size = 1920 was set buffer_size = 17280 0 - Front Left 1 - Front Right

This worked one day, and for some reason, it seems to have stopped, and its repeatable on multiple boards, so I think it's a software configuration somewhere.

Might someone have any suggestions?

thank you,

adam