On Fri, Mar 29, 2019 at 4:34 PM Jerome Brunet <[email protected]> wrote: > > As reported on this [0] mpll series, We are observing a lot of jitter > on the MPLL outputs of the g12a. No such jitter is seen on gx family. > On the axg family, only MPLL2 seems affected. > > The jitter can be as high as +/- 4%. > > This is a problem for audio application. This may cause distortion on > i2s and completely break SPDIF. > > After exchanging with Amlogic, it seems he have activated (by mistake) > the 'spread spectrum' feature. > > This patchset properly set the bit responsible for the spread spectrum > in the mpll driver and add the required correction in the related clock > controllers. > > Jerome Brunet (3): > clk: meson: mpll: properly handle spread spectrum this depends on a patch from your other series "clk: meson: fixup g12a mpll": [0] personally I would base the other series on this one because this one contains a "Fixes" that (meaning that the patch will get backported and that's easier if there aren't any conflicts)
Regards Martin [0] https://patchwork.kernel.org/patch/10868837/
