Krdytkyu

I am trying to bring up audio on my Baytrail- rt5640 on Ubuntu 16.04 for the last few weeks. But there is no sound even with your kernel patch on top 4.10-Rc5 +Ubuntu 16.04

I have rebuilt my kernel since my DSDT table doesn't have information about the CHAN for the Device (RTEK). I took the chan info from the windows.

Please check the logs.

Any suggestions??

Please see my kernel log

[ 6.427853] Audio Probbed BIOS Routing: AIF1 connected 

[ 6.427858] bytcr_rt5640 bytcr_rt5640: quirk IN1_MAP enabled

[ 6.427861] bytcr_rt5640 bytcr_rt5640: quirk DIFF_MIC enabled

[ 6.427863] bytcr_rt5640 bytcr_rt5640: quirk SSP0_AIF1 enabled

[ 6.427865] bytcr_rt5640 bytcr_rt5640: quirk MCLK_EN enabled

[ 6.427867] Audio Probbed byt_rt5640_cpu_dai_name ssp0-port 

[ 6.427875] bytcr_rt5640 bytcr_rt5640: Failed to get MCLK from pmc_plt_clk_3: -2

[ 6.431975] Audio Probbed Failed to get MCLK from pmc_plt_clk_3: -2

[ 6.439096] rt5640_probe snd_soc_codec_force_bias_level 

[ 6.442536] rt5640_probe sRT5640_ID_5640 

[ 6.442758] rt5640_probe return Success now 

[ 6.443609] bytcr_rt5640 bytcr_rt5640: snd-soc-dummy-dai <-> media-cpu-dai mapping ok

[ 6.443678] bytcr_rt5640 bytcr_rt5640: snd-soc-dummy-dai <-> deepbuffer-cpu-dai mapping ok

[ 6.443724] compress asoc: snd-soc-dummy-dai <-> compress-cpu-dai mapping ok

[ 6.444599] bytcr_rt5640 bytcr_rt5640: rt5640-aif1 <-> ssp0-port mapping ok

[ 6.447420] devm_snd_soc_register_card Success call platform_set_drvdata 0

[ 6.447422] Audio Probbed snd_byt_rt5640_mc_probe returns 

[ 10.603446] ASoC: Baytrail Audio Port no valid capture route

[ 10.603455] soc_pcm_open caled 

[ 10.603457] ASoC: cpu_dai->name media-cpu-dai

[ 10.654754] SST_IPC ***IPC_IA_FW_INIT_CMPLT_MRFLD: RX ***

[ 10.654757] SST_IPC *** FW Init msg came***

[ 10.654765] intel_sst_acpi 80860F28:00: FW Version 01.0c.00.01

[ 10.654766] FW Version RX 01.0c.00.01

[ 10.654768] Build date RX Mar 4 2015 Time 22:09:57

[ 10.654797] platform->component.name = sst-mfld-platform

[ 10.654800] ASoC: start codec cpu_dai->name media-cpu-dai

[ 10.655173] Baytrail Audio Port: ASoC: no backend DAIs enabled for Baytrail Audio Port

[ 10.655711] Baytrail Audio Port: ASoC: no backend DAIs enabled for Baytrail Audio Port

[ 10.655970] Baytrail Audio Port: ASoC: no backend DAIs enabled for Baytrail Audio Port

----------------------------------------------------

Whilst installing Gentoo on a GPD Pocket I had the same problem, strangely I found that pulseaudio fixes the problem... run it and it quits with an error but after that you can use aplay to playback a wav file.

Output of pulse audio when I run it:

W: [pulseaudio] main.c: This program is not intended to be run as root (unless --system is specified).

Killed

This is the output of my dmesg if I try using aplay before running pulseaudio, I am using kernel 4.14.0 (just released at time of writing):

[   98.209199] hci_uart_bcm serial0-0: BCM irq: 134

[   98.209250] usb 1-3: USB disconnect, device number 3

[   98.283103] Error: Driver 'pcspkr' is already registered, aborting...

[   98.350269] rt5645 i2c-10EC5645:00: i2c-10EC5645:00 supply avdd not found, using dummy regulator

[   98.350316] rt5645 i2c-10EC5645:00: i2c-10EC5645:00 supply cpvdd not found, using dummy regulator

[   98.431735] Bluetooth: hci0: BCM: chip id 101

[   98.432058] Bluetooth: hci0: BCM: features 0x2f

[   98.433075] Bluetooth: hci0: BCM4354A2

[   98.433080] Bluetooth: hci0: BCM4356A2 (001.003.015) build 0000

[   98.442394] bluetooth hci0: Direct firmware load for brcm/BCM4356A2.hcd failed with error -2

[   98.442398] Bluetooth: hci0: BCM: Patch brcm/BCM4356A2.hcd not found

[   98.547281] intel_sst_acpi 808622A8:00: LPE base: 0xa1600000 size:0x200000

[   98.547284] intel_sst_acpi 808622A8:00: IRAM base: 0xa16c0000

[   98.547346] intel_sst_acpi 808622A8:00: DRAM base: 0xa1700000

[   98.547359] intel_sst_acpi 808622A8:00: SHIM base: 0xa1740000

[   98.547366] intel_sst_acpi 808622A8:00: Mailbox base: 0xa1744000

[   98.547370] intel_sst_acpi 808622A8:00: DDR base: 0x20000000

[   98.547598] intel_sst_acpi 808622A8:00: Got drv data max stream 25

[   98.612056] cht-bsw-rt5645 cht-bsw-rt5645: snd-soc-dummy-dai <-> media-cpu-dai mapping ok

[   98.612107] cht-bsw-rt5645 cht-bsw-rt5645: snd-soc-dummy-dai <-> deepbuffer-cpu-dai mapping ok

[   98.612131] compress asoc: snd-soc-dummy-dai <-> compress-cpu-dai mapping ok

[   98.612461] cht-bsw-rt5645 cht-bsw-rt5645: rt5645-aif1 <-> ssp2-port mapping ok

[   98.668833] input: chtrt5645 Headset as /devices/pci0000:00/808622A8:00/cht-bsw-rt5645/sound/card1/input14

[   99.043453] hpet1: lost 9601 rtc interrupts

[  190.221386] intel_sst_acpi 808622A8:00: FW Version 01.0b.02.02

[  190.222291]  Audio Port: ASoC: no backend DAIs enabled for Audio Port

[  230.054571]  Audio Port: ASoC: no backend DAIs enabled for Audio Port

If I try and play a plain WAV file with aplay -D hw:1,0 /file.wav then I get this error message:

Playing WAVE '/file.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo

Warning: rate is not accurate (requested = 44100Hz, got = 48000Hz)

     please, try the plug plugin

aplay: set_params:1361: Unable to install hw params:

ACCESS:  RW_INTERLEAVED

FORMAT:  S16_LE

SUBFORMAT:  STD

SAMPLE_BITS: 16

FRAME_BITS: 32

CHANNELS: 2

RATE: 48000

PERIOD_TIME: 125000

PERIOD_SIZE: 6000

PERIOD_BYTES: 24000

PERIODS: 4

BUFFER_TIME: 500000

BUFFER_SIZE: 24000

BUFFER_BYTES: 96000

TICK_TIME: 0

Replacing hw with plughw does not make a big difference.

I will try and find out which part of pulseaudio fixed the problem... it must be quite easy as after it fixed the problem it quit with an error.