-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Somebody in the thread at some point said: | Control for the power for the LM4853 on the GTA02 had been made directly | visible to user space, needlessly burning power when no output was being | produced and causing pops and clicks to be worsened due to a lack of | integration with the power sequencing done by DAPM. | | Bring the amplifier power under DAPM control, saving power and reducing | the levels of pops and clicks caused. | | The existing control is left in place for the benefit of scenario files | but now has no effect.
This sounds great, but how does DAPM integrate with the analogue path usage which is the way we passthru audio for normal telephony? Last time I looked the ALSA side power management took a PCM-centric view of the world, it believes that PCM open was the sign we needed power some kind of "on" power state. It's mostly OK to assume that for that amp when doing the ringer action for example, but the amp also drives the headset, which can be active with no PCM footprint. Is it OK? - -Andy -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iEYEARECAAYFAkmtD7IACgkQOjLpvpq7dMoMUwCghUwDN2oR9xWjSi2dvfzRqgM/ v+AAoIbBuxVN6ShWUFK2haARaLn+MnBA =4DaR -----END PGP SIGNATURE-----
