Messages in this thread | | | Date | Fri, 7 Jul 2023 15:40:15 +0200 | From | Johan Hovold <> | Subject | Re: [PATCH] ASoC: codecs: wcd938x: fix dB range for HPHL and HPHR |
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On Fri, Jul 07, 2023 at 01:54:31PM +0100, Srinivas Kandagatla wrote: > On 07/07/2023 08:35, Johan Hovold wrote: > > On Wed, Jul 05, 2023 at 01:57:23PM +0100, Srinivas Kandagatla wrote:
> >> static const SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(ear_pa_gain, 600, -1800); > >> -static const SNDRV_CTL_TLVD_DECLARE_DB_MINMAX(line_gain, 600, -3000); > >> +static const DECLARE_TLV_DB_SCALE(line_gain, -3000, 150, -3000); > > > > This looks wrong, and indeed that forth argument appears to be a mute > > flag. I guess that one should have been 0 (false) here? > > yes, this should be true instead of a mute dB value.
Ok, so mute is supported. Then that argument can just be changed to "1" as a cleanup to follow the current convention.
> > Headphone output also appears to be way too loud by default with this > > patch (alone) applied. Perhaps it's just the default mixer settings need > > to be updated to match? > > > > It looks like you're inverting the scale above. Perhaps that's intended, > > yes, the highest value corresponds to lowest dB which is why its inverted.
Got it, thanks.
> > but some more details in the commit message as to what was wrong and > > what you intended to do would have been good. > > HPHR/HPHL Volume control is broken on this codec. > current UCM uses digital volume control for x13s which needs to be moved > to Analog volume control. > I have this change https://termbin.com/mpp9 in UCM which I plan to send > out once I test and fix other paths as well.
With those UCM changes the headphone volume appears to be restored even if pavucontrol now sets the "base" marker at 80% rather than 20% volume on the X13s (which is much too loud here).
Audio quality seem fine and I'm not hearing any distortion at 20% volume as some people were complaining about (even if I haven't really used the headphones myself before).
Sounds like you had a similar fix for the speaker distortion coming soon too, looking forward to that one.
Johan
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