Audio Driver(TLV320DAC3100) for AM335x Sitara: davinci_evm requests probe deferral

Hi,

I will forward this to the SW team, but please provide more information: what changes have you made, in which files, have you added a device tree entry, etc..

As per the Audio DAC example we updated in the files.
processors.wiki.ti.com/.../Sitara_Linux_SDK_Audio_DAC_Example

1. I added driver code for tlv320dac3100, updated in kconfig and makefile in the path = /sound/soc/codec
2. in /sound/soc/davinci : davinci-evm.c -- i added structure for the

1. static struct snd_soc_card am335x_snd_soc_card -- this structure is used if we are not having DTS file

2. static struct snd_soc_dai_link da830_evm_dai = {
.name = "TLV320DAC31",
.stream_name = "DAC31",
.cpu_dai_name = "am335x-mcasp.1",
.codec_dai_name = "tlv320dac31",
.codec_name = "tlv320dac31-codec.1-0018",
.platform_name = "am335x-mcasp.1",
.init = evm_aic3x_init,
.ops = &evm_ops,
.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
SND_SOC_DAIFMT_IB_NF,
};
3.static struct snd_soc_dai_link evm_dai_tlv320dac31 = {
.name = "TLV320DAC31",
.stream_name = "DAC31",
.codec_dai_name = "tlv320dac31",
.ops = &evm_ops,
.init = evm_aic3x_init,
.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
SND_SOC_DAIFMT_IB_NF,
};
//==== till here updated in davinci-evm.c
3. 3rd update is in dts file:
1. we connected audio codec to I2C0 -- so i2c0 is enabled.
sound {
compatible = "ti,da830-mcasp-audio"; // both we have tried "ti,am33xx-mcasp-audio";
ti,model = "AM335x-EVMSK";
ti,audio-codec = <&tlv320dac3100>;
ti,mcasp-controller = <&mcasp1>; pin mux is same - so we didnt changed
ti,codec-clock-rate = <24000000>;
ti,audio-routing =
"Headphone Jack", "HPLOUT",
"Headphone Jack", "HPROUT";
};
&i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins>;
status = "okay";
clock-frequency = <400000>;

tlv320dac3100: tlv320dac3100@18 {
compatible = "ti,tlv320dac3100";
reg = <0x18>;
status = "okay";

/* Regulators */
AVDD-supply = <&vaux2_reg>;
IOVDD-supply = <&vaux2_reg>;
DRVDD-supply = <&vaux2_reg>;
DVDD-supply = <&vbat>;
};

These are the changes i made to add a new audio driver --
we are getting error like : here is the full error log: //==============================
am335x-mcasp -- i update the driver names as --- am335x-mcasp -- instead of da830-mcasp
davinci_evm_probe -- this string print -- we added in the code to check. below is the dmesg log :

[ 2.648148] davinci_evm sound.11: ASoC: CODEC (null) not registered
[ 2.654943] davinci_evm sound.11: snd_soc_register_card failed (-517)
[ 2.661905] platform sound.11: Driver davinci_evm requests probe deferral
[ 2.719584] am335x-mcasp sound.11: Error populating platform data, err -22
[ 2.726795] am335x-mcasp sound.11: no platform data
[ 2.731959] am335x-mcasp: probe of sound.11 failed with error -22
[ 2.738394]
[ 2.738394] davinci_evm_probe
[ 2.743438] davinci_evm sound.11: ASoC: CODEC (null) not registered
[ 2.750103] davinci_evm sound.11: snd_soc_register_card failed (-517)
[ 2.756909] platform sound.11: Driver davinci_evm requests probe deferral
[ 2.829084] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6
[ 2.835489] davinci_mdio 4a101000.mdio: no live phy, scanning all
[ 2.842439] davinci_mdio: probe of 4a101000.mdio failed with error -5
[ 2.850716] am335x-mcasp sound.11: Error populating platform data, err -22
[ 2.857931] am335x-mcasp sound.11: no platform data
[ 2.863357] cpsw 4a100000.ethernet: Detected MACID = 78:a5:04:b0:30:ce
[ 2.886214] am335x-mcasp: probe of sound.11 failed with error -22
[ 2.892736]
[ 2.892736] davinci_evm_probe
[ 2.897780] davinci_evm sound.11: ASoC: CODEC (null) not registered
[ 2.906050] cpsw 4a100000.ethernet: cpsw: Detected MACID = 78:a5:04:b0:30:d0
[ 2.913716] davinci_evm sound.11: snd_soc_register_card failed (-517)
[ 2.923615] platform sound.11: Driver davinci_evm requests probe deferral
[ 2.931071] input: gpio_buttons.9 as /devices/gpio_buttons.9/input/input1
[ 2.939799] am335x-mcasp sound.11: Error populating platform data, err -22
[ 2.947052] am335x-mcasp sound.11: no platform data
[ 2.952556] omap_rtc 44e3e000.rtc: setting system clock to 2000-01-01 00:00:09 UTC (946684809)
[ 2.965746] ALSA device list:
[ 2.968927] No soundcards found.
[ 2.972829] am335x-mcasp: probe of sound.11 failed with error -22
[ 2.979968]
[ 2.979968] davinci_evm_probe
[ 2.985117] davinci_evm sound.11: ASoC: CODEC (null) not registered
[ 2.991819] davinci_evm sound.11: snd_soc_register_card failed (-517)
[ 2.998624] platform sound.11: Driver davinci_evm requests probe deferral
[ 3.018543] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 3.027266] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[ 3.037769] devtmpfs: mounted
[ 3.041552] Freeing unused kernel memory: 268K (c07cd000 - c0810000)
INIT: version 2.88 booting
Starting udev
[ 3.951429] udevd[856]: starting version 182
[ 4.367782] remoteproc0: powering up wkup_m3
[ 4.415225] remoteproc0: Booting fw image am335x-pm-firmware.elf, size 154420
[ 4.524146] PM: CM3 Firmware Version = 0x190
[ 4.537720] am335x-mcasp sound.11: Error populating platform data, err -22
[ 4.545116] am335x-mcasp sound.11: no platform data
[ 4.551132] 47401300.usb-phy supply vcc not found, using dummy regulator
[ 4.580481] remoteproc0: remote processor wkup_m3 is now up
[ 4.622688] 47401b00.usb-phy supply vcc not found, using dummy regulator
[ 4.659372] lis3lv02d: unknown sensor type 0x87
[ 4.666831] am335x-mcasp: probe of sound.11 failed with error -22
[ 4.719713] lis3lv02d_i2c: probe of 1-0018 failed with error -22
[ 4.728127]
[ 4.728127] davinci_evm_probe
[ 4.785757] davinci_evm sound.11: ASoC: CODEC (null) not registered
[ 4.839433] davinci_evm sound.11: snd_soc_register_card failed (-517)
[ 4.846306] platform sound.11: Driver davinci_evm requests probe deferral
[ 5.014275] davinci-mcasp sound.11: Error populating platform data, err -22
[ 5.021758] davinci-mcasp sound.11: no platform data
[ 5.188363] davinci-mcasp: probe of sound.11 failed with error -22
[ 5.195224] davinci-mcasp sound.11: Error populating platform data, err -22
[ 5.202621] davinci-mcasp sound.11: no platform data
[ 5.343874] davinci-mcasp: probe of sound.11 failed with error -22
[ 5.351300] am335x-mcasp sound.11: Error populating platform data, err -22
[ 5.358575] am335x-mcasp sound.11: no platform data
[ 5.473796] am335x-mcasp: probe of sound.11 failed with error -22
[ 5.513063]
[ 5.513063] davinci_evm_probe
[ 5.518276] davinci_evm sound.11: ASoC: CODEC (null) not registered
[ 5.591354] davinci_evm sound.11: snd_soc_register_card failed (-517)
[ 5.598213] platform sound.11: Driver davinci_evm requests probe deferral
[ 5.696246] davinci-mcasp sound.11: Error populating platform data, err -22
[ 5.703709] davinci-mcasp sound.11: no platform data
[ 5.812620] davinci-mcasp: probe of sound.11 failed with error -22
[ 8.107250] random: nonblocking pool is initialized
[ 8.176154] musb-hdrc musb-hdrc.0.auto: MUSB HDRC host driver
[ 8.250465] musb-hdrc musb-hdrc.0.auto: new USB bus registered, assigned bus number 1
[ 8.284575] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[ 8.319449] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 8.326627] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 8.334296] usb usb1: Product: MUSB HDRC host driver
[ 8.339542] usb usb1: Manufacturer: Linux 3.14.26-g2489c02-dirty musb-hcd
[ 8.346688] usb usb1: SerialNumber: musb-hdrc.0.auto
[ 8.610445] hub 1-0:1.0: USB hub found
[ 8.649643] hub 1-0:1.0: 1 port detected
[ 8.679361] am335x-mcasp sound.11: Error populating platform data, err -22
[ 8.686629] am335x-mcasp sound.11: no platform data
[ 8.715928] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
[ 8.722125] am335x-mcasp: probe of sound.11 failed with error -22
[ 8.728682]
[ 8.728682] davinci_evm_probe
[ 8.736638] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 2
[ 8.754692] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
[ 8.761988] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 8.769630] usb usb2: Product: MUSB HDRC host driver
[ 8.774859] usb usb2: Manufacturer: Linux 3.14.26-g2489c02-dirty musb-hcd
[ 8.782043] usb usb2: SerialNumber: musb-hdrc.1.auto
[ 8.787508] davinci_evm sound.11: ASoC: CODEC (null) not registered
[ 8.801792] davinci_evm sound.11: snd_soc_register_card failed (-517)
[ 8.808646] platform sound.11: Driver davinci_evm requests probe deferral
[ 8.827530] hub 2-0:1.0: USB hub found
[ 8.839275] hub 2-0:1.0: 1 port detected
[ 8.843696] davinci-mcasp sound.11: Error populating platform data, err -22
[ 8.851116] davinci-mcasp sound.11: no platform data
[ 8.932514] davinci-mcasp: probe of sound.11 failed with error -22
[ 8.979169] am335x-mcasp sound.11: Error populating platform data, err -22
[ 8.986397] am335x-mcasp sound.11: no platform data
[ 9.011187] am335x-mcasp: probe of sound.11 failed with error -22
[ 9.027136]
[ 9.027136] davinci_evm_probe
[ 9.041507] davinci_evm sound.11: ASoC: CODEC (null) not registered
[ 9.059211] davinci_evm sound.11: snd_soc_register_card failed (-517)
[ 9.066091] platform sound.11: Driver davinci_evm requests probe deferral
[ 9.085544] davinci-mcasp sound.11: Error populating platform data, err -22
[ 9.093012] davinci-mcasp sound.11: no platform data
[ 9.105834] davinci-mcasp: probe of sound.11 failed with error -22
[ 9.205478] EXT4-fs (mmcblk0p2): re-mounted. Opts: data=ordered
Starting Bootlog daemon: bootlogd: cannot allocate pseudo tty: No such file or directory
bootlogd.

Thank you for the update :

#1: mcasp1 -- parameters in dts file , setting we didnt modified --
&mcasp1 {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&mcasp1_pins>;
pinctrl-1 = <&mcasp1_pins_sleep>;

status = "okay";

op-mode = <0>; /* MCASP_IIS_MODE */ --- here i am having a doubt : we are not using I2S bus do we need to change any thing
this value other than 0-- its TDM with MCLK,BLCK , DIN
tdm-slots = <2>;
/* 4 serializers */
serial-dir = < /* 0: INACTIVE, 1: TX, 2: RX */
0 0 1 2 //// we will change this parameters as suggested.
>;
tx-num-evt = <32>;
rx-num-evt = <32>;
};
mcasp1_pins / sleep -- pin-mux is same in our board -- so we didnt changed.

#2
tlv320dac3100: tlv320dac3100 {
compatible = "ti, tlv320dac310 "; //this assumes that your driver is called tlv320dac310
};
Ans: As per this codec driver is loading -- but it is loading before I2C and McAsp -- driver_codec-i2c-probe is calling
but not "codec-probe".
[ 2.133460] tlv320dac3100:aic31xx_i2c_probe , tlv320dac3100, 0
[ 2.165893] tlv320dac3100: aic31xx_device_init : 0
[ 2.171074] tlv320dac3100:snd_soc_register_codec 0

[ 2.176310] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
[ 2.322845] omap_i2c 4802a000.i2c: bus 1 rev0.11 at 400 kHz

[ 4.537374] davinci-mcasp sound.11: Error populating platform data, err -22
[ 4.544746] davinci-mcasp sound.11: no platform data
[ 4.665643] davinci-mcasp: probe of sound.11 failed with error -22


# 3
Have you populated the static const struct of_device_id davinci_evm_dt_ids[] structure with the tlv320dac3100?
Ans:
YES :
static const struct of_device_id davinci_evm_dt_ids[] = {
{
.compatible = "ti,da830-evm-audio",
.data = &evm_dai_tlv320dac31,
},

and

static struct snd_soc_dai_link evm_dai_tlv320dac31 = {
.name = "TLV320DAC31",
.stream_name = "DAC31",
.codec_dai_name = "tlv320dac31-hifi",
.ops = &evm_ops,
.init = evm_aic3x_init,
.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
SND_SOC_DAIFMT_IB_NF,
};


#4
Have you created the static struct snd_soc_dai_driver structure for tlv320dac3100 &
Ans:
-- NO ; it is on davinci name only :
static struct snd_soc_dai_driver davinci_mcasp_dai[] = {
{
.name = "davinci-mcasp.0",
.probe = davinci_mcasp_dai_probe,
.suspend = davinci_mcasp_suspend,
.resume = davinci_mcasp_resume,
.playback = {
.channels_min = 2,
.channels_max = 32 * 16,
.rates = DAVINCI_MCASP_RATES,
.formats = DAVINCI_MCASP_PCM_FMTS,
},
.capture = {
.channels_min = 2,
.channels_max = 32 * 16,
.rates = DAVINCI_MCASP_RATES,
.formats = DAVINCI_MCASP_PCM_FMTS,
},
.ops = &davinci_mcasp_dai_ops,

.symmetric_samplebits = 1,
},
{
.name = "davinci-mcasp.1",
.probe = davinci_mcasp_dai_probe,
.playback = {
.channels_min = 1,
.channels_max = 384,
.rates = DAVINCI_MCASP_RATES,
.formats = DAVINCI_MCASP_PCM_FMTS,
},
.ops = &davinci_mcasp_dai_ops,
},

};


#5:

#ifdef CONFIG_OF
static const struct of_device_id tlv320dac3100_dt_ids[] = {
{ .compatible = "ti,tlv320dac3100", }, //this assumes that your driver is called tlv320dac310
{ }
};
MODULE_DEVICE_TABLE(of, tlv320dac3100_dt_ids);

Ans :
YES :
static const struct of_device_id tlv320dac31_of_match[] = {
{ .compatible = "ti,tlv320dac3100" },
{},
};
MODULE_DEVICE_TABLE(of, tlv320dac31_of_match);

As driver probe deferral error got -- we started back from step 1:
only adding codec driver and dts file change:

so that now we got this errors only:

root@am335x-evm:~# dmesg | grep "tlv"
[ 2.133460] tlv320dac3100:aic31xx_i2c_probe , tlv320dac3100, 0
[ 2.165893] tlv320dac3100: aic31xx_device_init : 0
[ 2.171074] tlv320dac3100:snd_soc_register_codec 0

root@am335x-evm:~# dmesg | grep "i2c"
[ 0.384627] i2c-core: driver [palmas] using legacy suspend method
[ 0.384651] i2c-core: driver [palmas] using legacy resume method
[ 0.393286] omap_i2c 44e0b000.i2c: could not find pctldev for node /pinmux@44e10800/pinmux_i2c0_pins, deferring probe
[ 0.393353] platform 44e0b000.i2c: Driver omap_i2c requests probe deferral
[ 0.393420] omap_i2c 4802a000.i2c: could not find pctldev for node /pinmux@44e10800/pinmux_i2c1_pins, deferring probe
[ 0.393459] platform 4802a000.i2c: Driver omap_i2c requests probe deferral
[ 1.900957] i2c-core: driver [rtc-ds1307] using legacy suspend method
[ 1.907814] i2c-core: driver [rtc-ds1307] using legacy resume method
[ 1.930062] i2c /dev entries driver
[ 2.133460] tlv320dac3100:aic31xx_i2c_probe , tlv320dac3100, 0
[ 2.176310] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
[ 2.322845] omap_i2c 4802a000.i2c: bus 1 rev0.11 at 400 kHz
[ 4.470623] lis3lv02d_i2c: probe of 1-0018 failed with error -22

root@am335x-evm:~# dmesg | grep "davinci"
[ 2.595447] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6
[ 2.601903] davinci_mdio 4a101000.mdio: no live phy, scanning all
[ 2.608929] davinci_mdio: probe of 4a101000.mdio failed with error -5
[ 4.537374] davinci-mcasp sound.11: Error populating platform data, err -22
[ 4.544746] davinci-mcasp sound.11: no platform data
[ 4.665643] davinci-mcasp: probe of sound.11 failed with error -22

As per you suggestions -- we will get back in post .

Thank you for the reply once again. :-)

Till the driver and codec is not loading. log is same.
1. I am having doubt that codec should load after i2c-0 ; in the kconfig of in soc/codec , we mentioned as "depends on I2C"

i tried cross check the device tree , is it getting to the kernel - in proc/device-tree/sound - i just given cat to the parameters -
t-audio-codec -- showing as "0"
ti,mcasp-controller -- as "P" -- do we need to give any thing for this???

-- but we given in dts file :

sound {
compatible = "ti,da830-evm-audio";
ti,model = "AM335x-EVMSK";
ti,audio-codec = <&tlv320dac31>;
ti,mcasp-controller = <&mcasp1>;
ti,codec-clock-rate = <24000000>;
ti,audio-routing =
"Headphone Jack", "HPLOUT", -- here having another doubt we are having a loud speaker also
"Headphone Jack", "HPROUT"; -- "VOUTL" and "VOUTR" are anything else to mention ??
};

&i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins>;
status = "okay";
clock-frequency = <400000>;

tlv320dac31: tlv320dac31@1b {
compatible = "ti,tlv320dac31";
reg = <0x1b>;
status = "okay";

/* Regulators */
AVDD-supply = <&vaux2_reg>;
IOVDD-supply = <&vaux2_reg>;
DRVDD-supply = <&vaux2_reg>;
DVDD-supply = <&vbat>;
};
};

static const struct of_device_id tlv320aic31xx_of_match[] = {
{ .compatible = "ti,tlv320dac31" },
{},
};
MODULE_DEVICE_TABLE(of, tlv320aic31xx_of_match);


One more thing about voltage regulator : for codec we got this log

[ 2.161977] 0-0018 supply AVDD not found, using dummy regulator
[ 2.168369] 0-0018 supply IOVDD not found, using dummy regulator
[ 2.174781] 0-0018 supply DRVDD not found, using dummy regulator
[ 2.181231] 0-0018 supply DVDD not found, using dummy regulator

in the code we given like this:
#define DAC31_NUM_SUPPLIES 4
static const char * const dac31_supply_names[DAC31_NUM_SUPPLIES] = {
"AVDD", /* Analog DAC Voltage */
"IOVDD", /* I/O Voltage */
"DRVDD", /* ADC Analog and Output Driver Voltage */
"DVDD", /* Digital Core Voltage */
};

Any please suggest or is there any wrnong in the declaration --

Regarding:
[ 2.161977] 0-0018 supply AVDD not found, using dummy regulator
[ 2.168369] 0-0018 supply IOVDD not found, using dummy regulator
[ 2.174781] 0-0018 supply DRVDD not found, using dummy regulator
[ 2.181231] 0-0018 supply DVDD not found, using dummy regulator

These are provided by the PMIC, which on reference designs is connected to I2C0, can you share the DTS node &i2c0 ?

Best Regards,
Yordan

Thank you Yordan.

In this post -- what ever we posted those are belong to -- small small mistakes while adding a new driver. now almost all of the error log are we solved --

Regarding: this scenario is aic3106 is loaded to existing codec aic3100 -- any ways those error logs are went off -- --but still dont know why this was came -- with same values and parameters as default -- still came.
[ 2.161977] 0-0018 supply AVDD not found, using dummy regulator
[ 2.168369] 0-0018 supply IOVDD not found, using dummy regulator
[ 2.174781] 0-0018 supply DRVDD not found, using dummy regulator
[ 2.181231] 0-0018 supply DVDD not found, using dummy regulator

Error logs posted in this post are due to mistakes while adding a new driver -- only.

regards,

Viswanath K

Hi Viswanath,

Where can I find tlv320dac310 linux driver.I need driver for our new product,I am using AM3354 sitra processor.I cant find driver and its very urgent because already started broad bring up .

Hi Viswanath,

Thank you for response ,

Can you please share your driver if you don't mind.My email id is suchit.bhatt@gmail.com