Merge tag 'sunxi-clk-for-4.16' of https://git.kernel.org/pub/scm/linux/kernel/git...

Pull Allwinner clock changes from Chen-Yu Tsai:

 "Fixed-post-divider support is added for two types of our clocks.
  This in turn is used to support odd clocks on some of our SoCs.
  On the A64, the MMC module clocks have a hidden post-divider.
  On the A83T, a post-divider is needed to support programming
  sigma-delta modulation with known fixed parameters from the
  BSP kernel for the audio PLL.

  There's also a small cleanup to use the shorter PTR_ERR_OR_ZERO
  macro in various functions."

* tag 'sunxi-clk-for-4.16' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: sun8i: a83t: Use sigma-delta modulation for audio PLL
  clk: sunxi-ng: sun8i: a83t: Add /2 fixed post divider to audio PLL
  clk: sunxi-ng: Support fixed post-dividers on NM style clocks
  clk: sunxi-ng: sun50i: a64: Add 2x fixed post-divider to MMC module clocks
  clk: sunxi-ng: Support fixed post-dividers on MP style clocks
  clk: sunxi: Use PTR_ERR_OR_ZERO()