On 04/19/16 10:18, Rick Mann wrote: > >> On Apr 19, 2016, at 00:00 , Peter Ujfalusi <peter.ujfalusi@xxxxxx> >> wrote: >> >> On 04/19/16 03:25, Rick Mann wrote: >>> Thanks for the suggestions, Peter, I really appreciate the help. >>> Here's what I get: >>> >>> [ 256.743991] davinci-mcasp 48038000.mcasp: Slots: 2, >>> max_active_serializers: 1, active_serializers: 0, channels: 2 >>> >>> I rebuilt the 4.4.7-bone-rt-r9 kernel using Robert C Nelson's >>> bb-kernel repo scripts. I modified sound/soc/davinci/davinci-mcasp.c to >>> print some diagnostics. Rebooted, then executed the following. Note >>> that BB-BONE-AUDI-02.dts is >>> <https://github.com/RobertCNelson/bb.org-overlays/blob/master/src/arm/BB-BONE-AUDI-02-00A0.dts>, >>> >>> and the base DTB is <http://pastebin.com/5vVEdAKt>: >> >> Looks OK. >> >> FWIW: I have the following patch on top of linux-next to get the BBW's >> AudioCape RevA working: >> https://github.com/omap-audio/linux-audio/commit/37d2421c321762360a6982b37107b617b0f74bee > >> > Interesting, I'll look at that when I start modifying the DTS again. I see > that uses the '3106. My own cape has the '3104 on it, which is why I'm > trying to get the AudioCape RevB working (my cape has additional GPIOs > controlling regulators and resets that I'll have to accommodate). >> >>> $ sudo su # echo BB-BONE-AUDI-02 > $SLOTS # aplay -l **** List of >>> PLAYBACK Hardware Devices **** card 0: B [AudioCape Rev B], device 0: >>> davinci-mcasp.0-tlv320aic3x-hifi tlv320aic3x-hifi-0 [] Subdevices: 1/1 >>> Subdevice #0: subdevice #0 # speaker-test >>> >>> 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 >>> >>> speaker-test caused the following to be logged: >>> >>> [ 256.743991] davinci-mcasp 48038000.mcasp: Slots: 2, >>> max_active_serializers: 1, active_serializers: 0, channels: 2 >> >> Now this is odd... Can you print also the mcasp->num_serializer here? If >> it is 0, then something really strange is going on. We set this up in >> davinci_mcasp_set_pdata_from_of() when reading the serial-dir array. > > Yup, seems like it's 0: > > [ 67.876673] davinci-mcasp 48038000.mcasp: Slots: 2, > max_active_serializers: 1, active_serializers: 0, channels: 2, > mcasp->num_serializer: 0 [ 67.889362] davinci-mcasp 48038000.mcasp: ASoC: > can't set 48038000.mcasp hw params: -22 How can it be? can you take a look of the davinci_mcasp_set_pdata_from_of() function where the serial-dir is set up? Do we get the of_serial_dir32? What is the size of the array we got (val)? BTW: can you check your mail client to wrap the lines around 78 characters? -- Péter _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
