[alsa-devel] Audio on omap3+twl4030 codec
naveen krishna ch
naveenkrishna.ch at gmail.com
Thu Oct 23 11:20:33 CEST 2008
On Thu, Oct 23, 2008 at 2:34 PM, Jarkko Nikula <jarkko.nikula at nokia.com>wrote:
> On Wed, 22 Oct 2008 18:54:12 +0530
> "ext naveen krishna ch" <naveenkrishna.ch at gmail.com> wrote:
> > I forget to add one more observation
> > that is i have a older omap2 and twl4030 asoc codec driver and driver/ssi
> > mcbsp support in a 2.6.24 kernel.
> > when i try to use this in my coustum board the audio is working fine all
> > ways.
> > > > I am wokring on 2.6.26 whre the support was not there for omap3
> > > > so i ported some stuff from the 2.6.27 latest git tree and now audio
> > > > working on omap3 evm.
> > > > with the very same kernel when i try with my custom board. I am
> unable to
> > > > hear audoi.
> > >
> So to summarize:
> - 2.6.26 + backported drivers on OMAP3 EVM -> audio works
> - 2.6.26 + backported drivers on custom board with NAND boot -> no audio
> - 2.6.26 + backported drivers on custom board with MMC boot -> audio
> - 2.6.24 (TI SDP release?) on custom board -> audio works
> And I understood also that bootloader images were the same in all of
> these cases. Did I get these correctly?
Yeah till here u got every thing correctly.
> Is the rootfile system the same between these cases? I.e. that same
> mixer settings like audio volumes etc. are used?
i Have used the same root file system also that too over nfs all the cases.
> > Can anyone refer me towards the ones who worked on this kind of audio
> > driver.
> Worth to ask also on linux-omap mailing list
> (linux-omap at vger.kernel.org) since TI engineers are reading it.
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