On 09/18/2007 01:08 PM, Jaroslav Kysela wrote: > On Tue, 18 Sep 2007, Rene Herman wrote: > >> On 09/18/2007 12:17 PM, Krzysztof Helt wrote: >> >>> From: Krzysztof Helt <krzysztof.h1@xxxxx> >>> >>> The initialization function did auto-calibration after each >>> register setting. This patch merges more register changes >>> before auto-calibration is done. >> Seems to make sense but am a little uneasy about these -- someone very much >> did it this way on purpose originally it seems. Jaroslav, that someone was you >> I believe? Do you remember anything about this? > > If I remember correctly, it was workaround for some CS4231 chips to fix > the noise audio issue (the chip was not initialized correctly in some > cases). I would make a whitelist for "non-buggy" tested chips to skip > double calibration. Okay thanks. For reference, I have: AD1848 AD1848KP AD1845JP AD1845XP AD1846JP CS4248-KL CS4231 CS4231A-KL CS4232-KQ CS4235-XQ3 CS4236B-KQ CS4237B-XQ3 CS4239-KQ (Won't be testing right now, but will be generally available). Rene. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
