On Mon, May 22, 2017 at 03:35:57PM +0800, Chen-Yu Tsai wrote: > On Mon, May 22, 2017 at 3:20 PM, Maxime Ripard > <maxime.ripard@xxxxxxxxxxxxxxxxxx> wrote: > > On Mon, May 22, 2017 at 02:25:48PM +0800, Chen-Yu Tsai wrote: > >> The divider of the audio PLL has an offset of 1. > >> Fix this in the driver. > >> > >> Signed-off-by: Chen-Yu Tsai <wens@xxxxxxxx> > > > > Applied, thanks! > > So even with this patch applied, the audio is still slow and off pitch. > It's even worse without this patch... > > Maybe it's time we added a special class of clks for the audio PLL > to deal with sigma-delta modulation of the divider? I'm not sure how feasible that would be and what it would look like, but you can give it a shot yes. Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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