Re: [PATCH] clk: sunxi-ng: sun4i: Set VCO and PLL bias current to lowest setting

On Thu, Sep 06, 2018 at 09:25:37PM +0800, Chen-Yu Tsai wrote:

The default mid-level PLL bias current setting interferes with sigma delta modulation. This manifests as decreased audio quality at lower sampling rates, which sounds like radio broadcast quality, and distortion noises at sampling rates at 48 kHz or above.

Changing the bias current settings to the lowest gets rid of the noise.

Fixes: de3448519194 ("clk: sunxi-ng: sun4i: Use sigma-delta modulation for audio PLL") Cc: stable@vger.kernel.org # 4.15.x Signed-off-by: Chen-Yu Tsai wens@csie.org

Applied, thanks! Maxime