Re: [OMAP3] ALSA driver 'suspend/resume' handlers

[Jarkko Nikula <jhnikula@gmail.com>]

On Tue, 29 Sep 2009 21:28:45 +0530
"Shilimkar, Santosh" <santosh.shilimkar@ti.com> wrote:

> > Having said that, there is also bug in the DMA driver which doesn't
> > disable the channel in linking cases. Since we use always hardware
> > synchronized method, hardware will take care of draining the buffer so no
> > loss of data.
> > 
> > So option B should be ok and USB case also would work as mentioned above.
> 
> Which option finally we converged on this issue? Shall we fix in the DMA driver or you want to do this in ALSA?
> 
For me it looks that at least the omap_stop_dma should be fixed to stop
ongoing transfer always when it's called. As the name suggest :-)

Then for offmode, if there is no clear method to save & restore
low-level McBSP & DMA context in their drivers, I don't see problem if
e.g. resume handler in sound/soc/omap/omap-mcbsp.c would call
the omap_mcbsp_config etc.


-- 
Jarkko