14 May
2009
14 May
'09
10:09 a.m.
On Thursday 14 May 2009 09:08:08 ext Jarkko Nikula wrote:
My two cents: Would it be possible to implement 'fake' PGA or amplifier into TWL outputs which only controls the power state of mixer and mux?
With the 'fake PGA' on the headsetL: Startup has a click, going standby is quite smooth. The sequences with the twl4030 codec (soc-damp.c routings are reverted to be the original) are for Startup: dac -> HS ramp up (HS enable, fake PGA) -> PGA
Standby: HS ramp down (HS disable, fake PGA) -> PGA -> dac
If the order of the startup can be somehow altered to be: dac -> PGA -> HS ramp up (HS enable, fake PGA)
Than it would be good.
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