Merge branches 'clk-renesas', 'clk-amlogic', 'clk-allwinner', 'clk-samsung', 'clk-doc' and 'clk-unused' into clk-next

 - Remove various unused variables in clk drivers

* clk-renesas:
  clk: renesas: rcar-gen3: Update description for RZ/G2
  clk: renesas: cpg-mssr: Add support for R-Car V3U
  clk: renesas: cpg-mssr: Add register pointers into struct cpg_mssr_priv
  clk: renesas: cpg-mssr: Use enum clk_reg_layout instead of a boolean flag
  dt-bindings: clock: renesas,cpg-mssr: Document r8a779a0
  dt-bindings: clock: Add r8a779a0 CPG Core Clock Definitions
  dt-bindings: power: Add r8a779a0 SYSC power domain definitions
  clk: renesas: rcar-gen2: Rename vsp1-(sy|rt) clocks to vsp(s|r)
  clk: renesas: r8a7742: Add clk entry for VSPR

* clk-amlogic:
  clk: meson: make shipped controller configurable
  clk: meson: g12a: mark fclk_div2 as critical
  clk: meson: axg-audio: fix g12a tdmout sclk inverter
  clk: meson: axg-audio: separate axg and g12a regmap tables
  clk: meson: add sclk-ws driver

* clk-allwinner:
  clk: sunxi-ng: sun8i: r40: Use sigma delta modulation for audio PLL
  clk: sunxi-ng: add support for the Allwinner A100 CCU
  dt-bindings: clk: sunxi-ccu: add compatible string for A100 CCU and R-CCU

* clk-samsung:
  clk: s2mps11: initialize driver via module_platform_driver
  clk: samsung: Use cached clk_hws instead of __clk_lookup() calls
  clk: samsung: exynos5420/5250: Add IDs to the CPU parent clk definitions
  clk: samsung: Add clk ID definitions for the CPU parent clocks
  clk: samsung: exynos5420: Avoid __clk_lookup() calls when enabling clocks
  clk: samsung: exynos5420: Add definition of clock ID for mout_sw_aclk_g3d
  clk: samsung: Keep top BPLL mux on Exynos542x enabled

* clk-doc:
  clk: davinci: add missing kerneldoc
  clk: fixed: add missing kerneldoc

* clk-unused:
  clk: socfpga: agilex: Remove unused variable 'cntr_mux'
  clk: si5341: drop unused 'err' variable
  clk: mmp: pxa1928: drop unused 'clk' variable
  clk: at91: drop unused at91sam9g45_pcr_layout