[v4,0/4] Introduce MediaTek frequency hopping driver

Message

Johnson Wang Oct. 13, 2022, 11:23 a.m. UTC

The purpose of this serie is to enhance frequency hopping and spread spectrum
clocking feature for MT8186.
We introduce new PLL register APIs and some helpers for FHCTL hardware control.
For MT8186 PLL driver, we replace mtk_clk_register_plls() with newly added API
to support frequency hopping and SSC function for specific PLLs.

Changes in v4:
- Fixup iospace error in the binding.
- Use GENMASK marco and remove extra line.

Changes in v3:
- Change binding file name.
- Add some constraints for properties.
- Rename "mediatek,hopping-ssc-percents" to "mediatek,hopping-ssc-percent".
- Add new config symbol.

Changes in v2:
- Use SoC-specific compatible instead of generic one.
- Use standard clocks property and vendor-specific property in dt-binding.
- Remove some unused arguments and fix some coding style.

Johnson Wang (4):
  clk: mediatek: Export PLL operations symbols
  dt-bindings: arm: mediatek: Add new bindings of MediaTek frequency
    hopping
  clk: mediatek: Add new clock driver to handle FHCTL hardware
  clk: mediatek: Change PLL register API for MT8186

 .../arm/mediatek/mediatek,mt8186-fhctl.yaml   |  53 ++++
 drivers/clk/mediatek/Kconfig                  |   8 +
 drivers/clk/mediatek/Makefile                 |   1 +
 drivers/clk/mediatek/clk-fhctl.c              | 244 ++++++++++++++++
 drivers/clk/mediatek/clk-fhctl.h              |  26 ++
 drivers/clk/mediatek/clk-mt8186-apmixedsys.c  |  66 ++++-
 drivers/clk/mediatek/clk-pll.c                |  84 +++---
 drivers/clk/mediatek/clk-pll.h                |  55 ++++
 drivers/clk/mediatek/clk-pllfh.c              | 268 ++++++++++++++++++
 drivers/clk/mediatek/clk-pllfh.h              |  82 ++++++
 10 files changed, 834 insertions(+), 53 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-fhctl.yaml
 create mode 100644 drivers/clk/mediatek/clk-fhctl.c
 create mode 100644 drivers/clk/mediatek/clk-fhctl.h
 create mode 100644 drivers/clk/mediatek/clk-pllfh.c
 create mode 100644 drivers/clk/mediatek/clk-pllfh.h