[PATCH v4 00/27] Add support for MT8196 clock controllers

[Laura Nao <laura.nao@collabora.com>]

This patch series introduces support for the clock controllers on the
MediaTek MT8196 platform, following up on an earlier submission[1].

MT8196 uses a hardware voting mechanism to control some of the clock muxes
and gates, along with a fence register responsible for tracking PLL and mux
gate readiness. The series introduces support for these voting and fence
mechanisms, and includes drivers for all clock controllers on the platform.

[1] https://lore.kernel.org/all/20250307032942.10447-1-guangjie.song@mediatek.com/

Changes in v4:
- Expanded the commit message for the clock controller bindings to include
the addition of the hardware voter handle
- Extended the description of the mediatek,hardware-voter phandle to
explain the limitations of the HWV implementation on MT8196 and justify the
use of a custom handle instead of relying on generic APIs

Link to v3: https://lore.kernel.org/all/20250624143220.244549-1-laura.nao@collabora.com

Laura Nao (27):
  clk: mediatek: clk-pll: Add set/clr regs for shared PLL enable control
  clk: mediatek: clk-pll: Add ops for PLLs using set/clr regs and FENC
  clk: mediatek: clk-mux: Add ops for mux gates with set/clr/upd and
    FENC
  clk: mediatek: clk-mtk: Introduce mtk_clk_get_hwv_regmap()
  clk: mediatek: clk-mux: Add ops for mux gates with HW voter and FENC
  clk: mediatek: clk-gate: Refactor mtk_clk_register_gate to use
    mtk_gate struct
  clk: mediatek: clk-gate: Add ops for gates with HW voter
  clk: mediatek: clk-mtk: Add MUX_DIV_GATE macro
  dt-bindings: clock: mediatek: Describe MT8196 clock controllers
  clk: mediatek: Add MT8196 apmixedsys clock support
  clk: mediatek: Add MT8196 topckgen clock support
  clk: mediatek: Add MT8196 topckgen2 clock support
  clk: mediatek: Add MT8196 vlpckgen clock support
  clk: mediatek: Add MT8196 peripheral clock support
  clk: mediatek: Add MT8196 ufssys clock support
  clk: mediatek: Add MT8196 pextpsys clock support
  clk: mediatek: Add MT8196 I2C clock support
  clk: mediatek: Add MT8196 mcu clock support
  clk: mediatek: Add MT8196 mdpsys clock support
  clk: mediatek: Add MT8196 mfg clock support
  clk: mediatek: Add MT8196 disp0 clock support
  clk: mediatek: Add MT8196 disp1 clock support
  clk: mediatek: Add MT8196 disp-ao clock support
  clk: mediatek: Add MT8196 ovl0 clock support
  clk: mediatek: Add MT8196 ovl1 clock support
  clk: mediatek: Add MT8196 vdecsys clock support
  clk: mediatek: Add MT8196 vencsys clock support

 .../bindings/clock/mediatek,mt8196-clock.yaml | 112 ++
 .../clock/mediatek,mt8196-sys-clock.yaml      | 107 ++
 drivers/clk/mediatek/Kconfig                  |  71 ++
 drivers/clk/mediatek/Makefile                 |  13 +
 drivers/clk/mediatek/clk-gate.c               | 106 +-
 drivers/clk/mediatek/clk-gate.h               |   3 +
 drivers/clk/mediatek/clk-mt8196-apmixedsys.c  | 203 ++++
 drivers/clk/mediatek/clk-mt8196-disp0.c       | 169 +++
 drivers/clk/mediatek/clk-mt8196-disp1.c       | 170 +++
 .../clk/mediatek/clk-mt8196-imp_iic_wrap.c    | 117 +++
 drivers/clk/mediatek/clk-mt8196-mcu.c         | 166 +++
 drivers/clk/mediatek/clk-mt8196-mdpsys.c      | 187 ++++
 drivers/clk/mediatek/clk-mt8196-mfg.c         | 149 +++
 drivers/clk/mediatek/clk-mt8196-ovl0.c        | 154 +++
 drivers/clk/mediatek/clk-mt8196-ovl1.c        | 153 +++
 drivers/clk/mediatek/clk-mt8196-peri_ao.c     | 144 +++
 drivers/clk/mediatek/clk-mt8196-pextp.c       | 131 +++
 drivers/clk/mediatek/clk-mt8196-topckgen.c    | 984 ++++++++++++++++++
 drivers/clk/mediatek/clk-mt8196-topckgen2.c   | 567 ++++++++++
 drivers/clk/mediatek/clk-mt8196-ufs_ao.c      | 109 ++
 drivers/clk/mediatek/clk-mt8196-vdec.c        | 253 +++++
 drivers/clk/mediatek/clk-mt8196-vdisp_ao.c    |  79 ++
 drivers/clk/mediatek/clk-mt8196-venc.c        | 235 +++++
 drivers/clk/mediatek/clk-mt8196-vlpckgen.c    | 726 +++++++++++++
 drivers/clk/mediatek/clk-mtk.c                |  16 +
 drivers/clk/mediatek/clk-mtk.h                |  23 +
 drivers/clk/mediatek/clk-mux.c                | 119 ++-
 drivers/clk/mediatek/clk-mux.h                |  87 ++
 drivers/clk/mediatek/clk-pll.c                |  46 +-
 drivers/clk/mediatek/clk-pll.h                |   9 +
 .../dt-bindings/clock/mediatek,mt8196-clock.h | 802 ++++++++++++++
 .../reset/mediatek,mt8196-resets.h            |  26 +
 32 files changed, 6212 insertions(+), 24 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/clock/mediatek,mt8196-clock.yaml
 create mode 100644 Documentation/devicetree/bindings/clock/mediatek,mt8196-sys-clock.yaml
 create mode 100644 drivers/clk/mediatek/clk-mt8196-apmixedsys.c
 create mode 100644 drivers/clk/mediatek/clk-mt8196-disp0.c
 create mode 100644 drivers/clk/mediatek/clk-mt8196-disp1.c
 create mode 100644 drivers/clk/mediatek/clk-mt8196-imp_iic_wrap.c
 create mode 100644 drivers/clk/mediatek/clk-mt8196-mcu.c
 create mode 100644 drivers/clk/mediatek/clk-mt8196-mdpsys.c
 create mode 100644 drivers/clk/mediatek/clk-mt8196-mfg.c
 create mode 100644 drivers/clk/mediatek/clk-mt8196-ovl0.c
 create mode 100644 drivers/clk/mediatek/clk-mt8196-ovl1.c
 create mode 100644 drivers/clk/mediatek/clk-mt8196-peri_ao.c
 create mode 100644 drivers/clk/mediatek/clk-mt8196-pextp.c
 create mode 100644 drivers/clk/mediatek/clk-mt8196-topckgen.c
 create mode 100644 drivers/clk/mediatek/clk-mt8196-topckgen2.c
 create mode 100644 drivers/clk/mediatek/clk-mt8196-ufs_ao.c
 create mode 100644 drivers/clk/mediatek/clk-mt8196-vdec.c
 create mode 100644 drivers/clk/mediatek/clk-mt8196-vdisp_ao.c
 create mode 100644 drivers/clk/mediatek/clk-mt8196-venc.c
 create mode 100644 drivers/clk/mediatek/clk-mt8196-vlpckgen.c
 create mode 100644 include/dt-bindings/clock/mediatek,mt8196-clock.h
 create mode 100644 include/dt-bindings/reset/mediatek,mt8196-resets.h

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2.39.5