[alsa-devel] WM5102 - Help to make baytrail machine driver work

[Paulo Sergio]

Hi Charles, how are you?

> A quick look through your machine driver looks like the parts
> relating the CODEC look ok.
>
> I am not so sure about the AP side routing but for the CODEC,
>
> 'HPOUT1L Input 1' AIF1RX1
> 'HPOUT1R Input 1' AIF1RX2
> 'HPOUT1 Digital Switch' 1
>
> Should be enough to route some audio out the headphones, assuming
> AIF1 is connected to the AP and HPOUT1L is the headphones (it is
> very rare for people to not wire things up that way so its quite
> a good bet, and your machine driver suggests this is how it is
> connected).

Tried these cmds/routes to enable headphones (got from Raspberry PI
wolfson card), but we got no output (except static noise and some
"clicks")

alsa_amixer -Dhw:0 cset name='HPOUT1 Digital Switch' on
# Set path gain to -6dB for safety. ie mav 0.5Vrms output level.
alsa_amixer -Dhw:0 cset name='HPOUT1 Digital Volume' 116
# do we want to clear the HPOUT mixers inputs?
alsa_amixer -Dhw:0 cset name='HPOUT1L Input 1' None
alsa_amixer -Dhw:0 cset name='HPOUT1R Input 1' None
alsa_amixer -Dhw:0 cset name='HPOUT1L Input 2' None
alsa_amixer -Dhw:0 cset name='HPOUT1R Input 2' None
alsa_amixer -Dhw:0 cset name='HPOUT1L Input 1' AIF1RX1
alsa_amixer -Dhw:0 cset name='HPOUT1L Input 1 Volume' 32
alsa_amixer -Dhw:0 cset name='HPOUT1R Input 1' AIF1RX2
alsa_amixer -Dhw:0 cset name='HPOUT1R Input 1 Volume' 32
alsa_amixer -Dhw:0 cset name='Headset Mic Switch' on

Tried also some other controls for speakers, but no audio output

>
> If you provide some kernel logs with the LOG_DEVICE in
> drivers/base/regmap/regmap.c set to the CODEC spi device, I am
> happy to sanity check what is going to the CODEC. Although at the
> moment I think your issue looks mostly like getting through the
> AP side.

Appreciate your help. Thanks in advance

Here's dmesg with LOG_DEVICE set (in this case to "spi-WM510204:00") [1]

[1] - https://drive.google.com/file/d/0BxO6THtB865fS2NxUkdOa18zUlE/view?usp=sharing

Regards
Pstglia