[Letux-kernel] mcbsp 1

Andreas Kemnade andreas at kemnade.info
Fri Apr 28 22:39:47 CEST 2017


On Fri, 28 Apr 2017 21:56:56 +0200
"H. Nikolaus Schaller" <hns at goldelico.com> wrote:

> >> 
> >>>> And then if we can identify the chip and tune,
> > 
> > got it:
> > 
> > root at letux:~# /root/si4721 -i /dev/i2c-1 -d -up -dn
> > init resp: 80
> > get_chiprev resp: 80
> > 1532300000323042
> > powered off
> > root at letux:~#
> > 
> > The problem is that the /dev/i2c numbers have changed! And the hard-coded i2c-2 is now the wrong default
> > and the hw-test script does not overwrite it.
> > 
> >>>> we can and have to fix
> >>>> the McBSP1 (I have changed the subject :).
> 
> fm-demo script is also working again (we can tune the chip and get RSSI values :)
> and it shows some remaining issues:
> 
> * we have no gpio55 (what was it good for?)
> * sound card setup/names (CARD=gta04fm not found)
> * and probably mcbsp1 (DT setup of clock polarity etc. has never been verified)
hmm, there is also the bluetooth card missing.

root at letux:~# arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: gta04 [gta04], device 0: TWL4030 HiFi twl4030-hifi-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: voice [GTA04 voice], device 0: 49026000.mcbsp-gtm601 gtm601-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0


Regards,
Andreas
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