[PATCH v1 0/3] Add PLL clocks driver for StarFive JH7110

[Xingyu Wu]

This patch serises are to add PLL clocks driver and modify
the system clock driver to depend on PLL clocks driver for the 
StarFive JH7110 RISC-V SoC.

PLL are high speed, low jitter frequency synthesizers in JH7110.
Each PLL clocks work in integer mode or fraction mode by some dividers,
and the dividers are set in several syscon registers.
The formula for calculating frequency is: 
Fvco = Fref * (NI + NF) / M / Q1

The first patch adds docunmentation to describe PLL clock bindings,
and the second patch adds driver to support PLL clocks for JH7110 and 
modifies the system clock driver.

This patchset should be applied after this patchset about JH71x0 clock
driver:
https://lore.kernel.org/all/20230221024645.127922-1-hal.feng@xxxxxxxxxxxxxxxx/

Xingyu Wu (3):
  dt-bindings: clock: Add StarFive JH7110 PLL clock generator
  clk: starfive: Add StarFive JH7110 PLL clock driver
  riscv: dts: starfive: jh7110: Add PLL clock node

 .../bindings/clock/starfive,jh7110-pll.yaml   |  45 ++
 arch/riscv/boot/dts/starfive/jh7110.dtsi      |  15 +-
 drivers/clk/starfive/Kconfig                  |   9 +
 drivers/clk/starfive/Makefile                 |   1 +
 .../clk/starfive/clk-starfive-jh7110-pll.c    | 433 ++++++++++++++++++
 .../clk/starfive/clk-starfive-jh7110-pll.h    | 286 ++++++++++++
 .../clk/starfive/clk-starfive-jh7110-sys.c    |  40 +-
 .../dt-bindings/clock/starfive,jh7110-crg.h   |  12 +-
 8 files changed, 807 insertions(+), 34 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-pll.yaml
 create mode 100644 drivers/clk/starfive/clk-starfive-jh7110-pll.c
 create mode 100644 drivers/clk/starfive/clk-starfive-jh7110-pll.h


base-commit: c9c3395d5e3dcc6daee66c6908354d47bf98cb0c
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prerequisite-patch-id: 315303931e4b6499de7127a88113763f86e97e16
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prerequisite-patch-id: d57e95d31686772abc4c4d5aa1cadc344dc293cd
prerequisite-patch-id: 29aab7148bf56a20acddcb8a11f290705fcc97f6
prerequisite-patch-id: 8adbb4af2c71fde6b8c795bde028157a69c51c31
prerequisite-patch-id: a4689a8a4cc56984b5845b59f5a84e5214d91543
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2.25.1