Re: [alsa-devel] [PATCH] ASoC: wm8962: fix lambda value

From: Shengjiu Wang
Date: Thu Dec 12 2019 - 22:09:24 EST


Hi

On Fri, Dec 13, 2019 at 12:54 AM Mark Brown <broonie@xxxxxxxxxx> wrote:
>
> On Thu, Dec 12, 2019 at 04:48:35PM +0000, Charles Keepax wrote:
> > On Wed, Dec 11, 2019 at 07:57:22PM +0800, Shengjiu Wang wrote:
> > > According to user manual, it is required that FLL_LAMBDA > 0
> > > in all cases (Integer and Franctional modes).
>
> > How well tested is this change, and is it addressing an issue you
> > have observed? I agree this does better fit the datasheet just a
> > little nervous as its an older part that has seen a lot of usage.
>
> I've got a feeling that requirement might've been added in later
> versions of the datasheet...

We encounter an issue that when Integer mode, the lambda=theta=0,
the output sound is slower than expected. After change lambda=1
the issue is gone.

Best regards
Wang Shengjiu