On 08/08/2012 12:11 PM, Peter Ujfalusi wrote: > We can achieve the same result with SIDLEMODE field within McBSP SYSCONFIG > register. > The ASoC driver has been modified to use this method and we can now remove > the workaround using the control module register. > Are you sure it works without any changes to sidetone audio quality or current consumption? What I remember idlemode was broken at least on 3430 and caused bad sidetone audio if autoidle was set and a little bit higher current consumption (something like 2-3 mA higher where reference consumption was around 10 mA) when McBSP was set to no-idle. Here's the old thread: http://www.mail-archive.com/linux-omap@xxxxxxxxxxxxxxx/msg52024.html I think I tested all of this by using arecord >/dev/null | aplay /dev/zero with threshold based DMA transfers with all bells and whistles set for dynamic retention idle in order to hear only McBSP sidetone while measuring current consumption. But I guess 2-3 mA higher consumption is ok if it simplifies SW a lot and base consumption is anyway much higher than 10 mA when sidetone is in real use (my test above was artificial where actual use is under a phone call with heavy consumption from cellular modem etc). -- Jarkko -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
