[PATCH 0/9] clk: sunxi-ng: Use sigma-delta modulation for audio PLL

Maxime Ripard maxime.ripard at free-electrons.com
Fri Oct 13 00:28:03 PDT 2017


On Thu, Oct 12, 2017 at 08:36:56AM +0000, Chen-Yu Tsai wrote:
> Hi everyone,
> 
> This series adds support for fractional-N synthesis using sigma-delta
> modulation in the audio PLL to get the exact required clock rate.
> This fixes the speed and pitch change when audio is played back on
> sunxi platforms, due to the slightly inaccurate audio clock.
> 
> I've done this for all platforms I can test at the moment. A83T is left
> out for now as the the clock unit's design is slightly different. I
> was unable to work on the A33, as my board is very unstable, plus A33
> audio playback seems to be broken at the moment. There might be some
> issue with the DAPM routes.

Applied, thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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