[alsa-devel] [PATCH 04/11] MFD: twl4030-audio: Add DT support

Peter Ujfalusi peter.ujfalusi at ti.com
Wed Aug 8 16:16:58 CEST 2012

On 08/08/2012 04:52 PM, Mark Brown wrote:
>> The hs_extmute is used for reducing pop noise on the headset. The sequence is
>> described in the TRM and it need to be done within the codec driver since it
>> is within the sequence.
> Is the point it's at in the sequence the end?

On both ends :o
On HS enable: the extmute has to be enabled, run the power on sequence for the
HS, wait for ramp, disable the HS extmute.

On stop: enable the extmute, run the sequence, wait for ramp, release the extmute.

> We can always add a patch stubbing it out as part of the series, or in a
> branch in the OF tree that we can pull in.

If you are OK with the hassle I can add a patch to the series for
include/linux/of.h to handle this.


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