HI,
First: we are not getting any clocks out -- CLKOUT1 , BCLK and WCLK , which is same as Sitara EVM Starter kit configuration.
later we changed the pinmux - as I2S as Mater and Codec as Slave - so we have to made IO's as OUTPUT_PULLUP.
we are getting CLOCKOUT1-->MCLK: 378HZ instead of 24MHZ and ACLK->BCLK(getting a spike while aplay command ) and FSX->WCLK has NO Clock,
DTS PINMUX: to get Clocks out
clkout1_pin: pinmux_clkout1_pin {
pinctrl-single,pins = <
0x1b0 (PIN_OUTPUT_PULLUP | MUX_MODE3) /* xdma_event_intr0.clkout1 */
>;
};
mcasp1_pins: mcasp1_pins {
pinctrl-single,pins = <
0x10c (PIN_OUTPUT_PULLUP | MUX_MODE4) /* mii1_crs.mcasp1_aclkx */ // as I2S act as master - ACLK
0x110 (PIN_OUTPUT_PULLUP | MUX_MODE4) /* mii1_rxerr.mcasp1_fsx */ // WCLK
0x108 (PIN_OUTPUT_PULLUP | MUX_MODE4) /* mii1_col.mcasp1_axr2 */ // TX
0x144 (PIN_INPUT_PULLDOWN | MUX_MODE4) /* rmii1_ref_clk.mcasp1_axr3 */ //RX
>;
};
we are not able to find, why clock are getting out -- we done only necessary changes for the codec change only default TLV320AIC3106 to TLV320DAC3100.
log for the aplay cmd: codec is detected and registered with ALSA LIST.
[ 3.240622] platform 4a100000.ethernet: omap_device_late_idle: enabled but no driver. Idling
[ 3.249861] ALSA device list:
[ 3.252992] #0: AM335x-EVMSK
[ 3.271711] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 3.280417] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[ 3.291118] devtmpfs: mounted
......................
ALSA: Restoring mixer settings...
No state is present for card AM335xEVMSK
Found hardware: "AM335x-EVMSK" "" "" "" ""
Hardware is initialized using a generic method
No state is present for card AM335xEVMSK
a/Front_Center.wav s/devices/sound.10/TLV320AIC31XX# aplay /usr/share/sounds/alsa
[ 1304.662838] davinci_mcasp_startup:dir:1 substream->stream:0
Playing WAVE '/usr/share/sounds/alsa/Front_Center.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono
[ 1304.678412] aic31xx_set_dai_sysclk
[ 1304.684561] davinci_mcasp_set_sysclk:mcasp->sysclk_freq:24000000 ; dir:1
[ 1304.691683] aic31xx_hw_params
[ 1304.695347] aic31xx_setup_pll
[ 1304.705986] davinci_mcasp_hw_params:mcasp->sysclk_freq:24000000
[ 1304.712373] mcasp_common_hw_param
[ 1304.715962] mcasp->serial_dir[2]:1,
[ 1304.719762] mcasp_i2s_hw_param:active_serializers:1
[ 1304.724888] davinci_mcasp_hw_params:word_length:16
[ 1304.735049] davinci_mcasp_trigger:CMD:1
[ 1304.739205] davinci_mcasp_start:
[ 1304.742596] mcasp_start_tx:
[ 1304.745549] mcasp_start_tx:tdm_slots:2, op_mode:0,num_serializer:4,txnumevt:32,rxnumevt:32
[ 1304.754228] mcasp_start_tx:wait for XDATA to be cleared
[ 1304.759720] mcasp_start_tx:enable transmit underrun IRQ
[ 1304.765214] mcasp_start_tx:After IRQ enable transmit underrun IRQ
^CAborted by signal Interrupt...
aplay: pcm_write[ 1307.181603] davinci_mcasp_trigger:CMD:0
[ 1307.189231] mcasp_stop_tx:
:1939: write error: Interrupted system call
this is the state of the codec:
root@am335x-evm:/sys/devices/sound.10/TLV320AIC31XX# cat dapm_widget
SPK ClassD: Off
MICBIAS: Off
MIC_GAIN_CTL: Off
ADC: Off
SPK ClassD: Off
HPR Driver: Off
HPL Driver: Off
Output Right: Off
Output Left: Off
DAC Right: Off
DAC Left: Off
PM State: Standby
root@am335x-evm:/sys/devices/sound.10/TLV320AIC31XX#
how to enable these codec features -- do we need to change any thing in the codec driver -- to enable these.
regards,
Viswanath K.
CLKOUT1: need to get 24MHZ but getting 374HZ.
