Hi, perhaps you could help me, I try to use a TLV320AIC3100 with the BeagleBoneBlack, kernel 4.4.28-bone14 and the dts file in the attachement. The dts file based on the instructions from Robert Nelson on https://github.com/beagleboard/bb.org-overlays. I have to uncomment the line clocks = <&clk_mcasp0>; in the dts file, because I get error otherwise. Enable the device with slots delivers: [ 386.783276] bone_capemgr bone_capemgr: part_number 'BB-BONE-AUDI-04', version 'N/A' [ 386.791191] bone_capemgr bone_capemgr: slot #4: override [ 386.796670] bone_capemgr bone_capemgr: Using override eeprom data at slot 4 [ 386.803724] bone_capemgr bone_capemgr: slot #4: 'Override Board Name,00A0,Override Manuf,BB-BONE-AUDI-04' [ 386.847899] bone_capemgr bone_capemgr: slot #4: dtbo 'BB-BONE-AUDI-04-00A0.dtbo' loaded; overlay id #0 [ 386.876502] 2-0018 supply HPVDD not found, using dummy regulator [ 386.891280] 2-0018 supply SPRVDD not found, using dummy regulator [ 386.903157] 2-0018 supply SPLVDD not found, using dummy regulator [ 386.910660] 2-0018 supply AVDD not found, using dummy regulator [ 386.917471] 2-0018 supply IOVDD not found, using dummy regulator [ 386.923560] 2-0018 supply DVDD not found, using dummy regulator [ 386.932676] asoc-simple-card sound: tlv320aic31xx-hifi <-> 48038000.mcasp mapping ok So I think this should be OK. In the alsamixer I can change the volume and on the I2C I see telegrams by changing the volume. But if I try to play sound with speaker-test I get errors again: > > >speaker-test 1.0.28 > > > >Playback device is default > >Stream parameters are 48000Hz, S16_LE, 1 channels > >Using 16 octaves of pink noise > >Rate set to 48000Hz (requested 48000Hz) > >Buffer size range from 16 to 32768 > >Period size range from 8 to 16384 > >Using max buffer size 32768 > >Periods = 4 > >Unable to set hw params for playback: Invalid argument > >Setting of hwparams failed: Invalid argument > > dmesg delivers: > >[ 106.776874] Division by zero in kernel. > >[ 106.780963] CPU: 0 PID: 606 Comm: speaker-test Tainted: G O 4.4.28-bone14 #1 > >[ 106.789321] Hardware name: Generic AM33XX (Flattened Device Tree) > >[ 106.795654] [<c0013e85>] (unwind_backtrace) from [<c0011f39>] (show_stack+0x11/0x14) > >[ 106.803580] [<c0011f39>] (show_stack) from [<c037070f>] (Ldiv0+0x9/0x12) > >[ 106.810510] [<c037070f>] (Ldiv0) from [<bf9952df>] (aic31xx_hw_params+0x96/0x370 [snd_soc_tlv320aic31xx]) > >[ 106.820849] [<bf9952df>] (aic31xx_hw_params [snd_soc_tlv320aic31xx]) from [<bf88d3bf>] (soc_dai_hw_params+0x16/0x34 [snd_soc_core]) Quite fatal error even because of division by zero in aic3 1xx_hw_params(). I guess it either doesn't validate its parameters or gets values that should not happen. By the way with an original Audio_Cape_Rev B and Kernel 3.8.13 everything works fine. The TLV320AIC3100 is connected to the BeagleBone in the same way, but in the Kernel 3.8.13 is no support for this device so I have to use a Kernel >4.1. Greetings, Kai
Attachment:
BB-BONE-AUDI-04-00A0.dts
Description: audio/vnd.dts
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