[PATCH v2 00/18] MT8189: Add support for system and base clock controllers

[Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>]

This series is a continuation by AngeloGioacchino Del Regno and I of a
previous series ([1]), that adds the clock controller support for
the Mediatek MT8189 SoC and its variants (MT8371, MT8391).  

The first major changes is the split of the series in two:
- one for all basic clock controllers including system ones (this
series)
- one for the multimedia and graphics related clock controllers (to be
send in the future)

We chose to separate the multimedia clock drivers from the base system
ones, as there is currently an unsolvable inter-dependency between the
power domains and multimedia clocks; the power domains need a
dual-stage bring-up, where only a part of the multimedia clocks are
accessible in the first power domain powerup stage, and the rest when
the second stage (SRAM enablement) is done.
The current workarounds for this issue, such as removing the is_enabled
operation from the impacted clock controllers clk_ops table or
let the multimedia power domain always on, were quickly discarded
for upstream.

The second major change is the dt-bindings patch that got heavily
reworked, not only because of the split choice. We took the opportunity
to regroup in the MT8186 clock and system clock dt-bindings the
description of several other Mediatek SoC (MT8188, MT8192 and MT8195)
and add in them the MT8189 new ones.
The rationale is to ease maintainability and have common files for
several currently supported SoC or new future ones, that have the same
kind of clock controller design.

Finally the pending remarks from peer reviews on the v6 revision of [1]
were also taken into account and new fixes and cleanups were also
added.

A more detailed changelog between [1] and this series:
- Removed multimedia and graphics related clock controllers code and
  definitions from series
- Added new dt-bindings patches to factorise existing MT8188, MT8192
  and MT8195 in MT8186 clock dt-bindings
- Heavily modified the MT8189 dt-bindings to add new compatibles 
  in MT8186 clock dt-bindings
- Created a new dt-bindings include for the MT8189 reset controller
  definitions (include/dt-bindings/reset/mediatek,mt8189-resets.h)
- Removed unnecessary `syscon` compatible fallback from MT8189 base
  clock controllers
- Added missing 'mediatek,mt8189-fhctl' compatible declaration in
  dt-bindings
- Modified Kconfig to COMMON_CLK_MT8189 be tristate (and not bool) to 
  allow all MT8189 clock controller drivers to be built as modules (it
  was partial) 
- Fix pll unregisters in clk_mt8189_apmixed_probe error case
- Reparent several clocks to correct 26M references in clk-mt8189-bus.c,
  clk-mt8189-topckgen.c and clk-mt8189-vlpckgen.c
- Removed CLK_SET_RATE_NO_REPARENT flag from mfg_sel_mfgpll
- Rename TOPCKGEN_fmipi_csi_up26m clock to fmipi_csi_up26m to remove caps usage
- Implemented reset controllers in clk-mt8189-ufs.c
- Updated all file headers to update copyrights and add all authors
- Added all co-developed-by trailers

The series is based on linux-next tree (tag: next-20260630) and has
been tested on Mediatek Genio 520-EVK (MT8371) and 720-EVK (MT8391) boards
with board hardware enablement patch series ([3]).

[1]: https://lore.kernel.org/linux-mediatek/20260309120512.3624804-1-irving-ch.lin@mediatek.com/
[2]: https://lore.kernel.org/linux-mediatek/20260309120512.3624804-2-irving-ch.lin@mediatek.com/
[3]: https://lore.kernel.org/linux-mediatek/20260701-add-mediatek-genio-520-720-evk-v2-0-19d5da4ef984@collabora.com/

---
Changes in v2:
- Rebased on next-20260708 tag
- Added patch 1,2 and 3 to make the #clock-cells a required property in
  MT8186, MT8192 and MT8195 clock controller dt-bindings
- Patch 5:
  - Removed conditional blocks to check clock-cells property presence
    for MT8188 clock controller compatible
  - Reworded commit message to remove the note (no more applicable)
  - Fixed incorrect property value in else block for #reset-cells
    property check.
_ Removed from patch 9 conditional blocks to check clock-cells property
  presence for MT8189 clock controller compatible
- Fixed missing MODULE_DEVICE_TABLE in patches 10, 11 and 12.
- Added devicetree series link in cover letter
- Link to v1: https://lore.kernel.org/r/20260701-mt8189-clocks-system-base-v1-0-2b048feea50a@collabora.com

---
Louis-Alexis Eyraud (18):
      dt-bindings: clock: mediatek: Make '#clock-cells' required for MT8186
      dt-bindings: clock: mediatek: Make '#clock-cells' required for MT8192
      dt-bindings: clock: mediatek: Make '#clock-cells' required for MT8195
      dt-bindings: clock: mediatek: reorder MT8186 compatibles
      dt-bindings: clock: mediatek: regroup MT8188 dt-bindings into MT8186
      dt-bindings: clock: mediatek: regroup MT8192 dt-bindings into MT8186
      dt-bindings: clock: mediatek: regroup MT8195 dt-bindings into MT8186
      dt-bindings: clock: mediatek: Add MT8189 clocks
      clk: mediatek: Add MT8189 apmixedsys clock support
      clk: mediatek: Add MT8189 topckgen clock support
      clk: mediatek: Add MT8189 vlpckgen clock support
      clk: mediatek: Add MT8189 vlpcfg clock support
      clk: mediatek: Add MT8189 bus clock support
      clk: mediatek: Add MT8189 dbgao clock support
      clk: mediatek: Add MT8189 dvfsrc clock support
      clk: mediatek: Add MT8189 i2c clock support
      clk: mediatek: Add MT8189 scp clock support
      clk: mediatek: Add MT8189 ufs clock support

 .../bindings/clock/mediatek,mt8186-clock.yaml      |  128 ++-
 .../bindings/clock/mediatek,mt8186-fhctl.yaml      |    1 +
 .../bindings/clock/mediatek,mt8186-sys-clock.yaml  |   24 +-
 .../bindings/clock/mediatek,mt8188-clock.yaml      |   93 --
 .../bindings/clock/mediatek,mt8188-sys-clock.yaml  |   58 --
 .../bindings/clock/mediatek,mt8192-clock.yaml      |  191 ----
 .../bindings/clock/mediatek,mt8192-sys-clock.yaml  |   68 --
 .../bindings/clock/mediatek,mt8195-clock.yaml      |  238 -----
 .../bindings/clock/mediatek,mt8195-sys-clock.yaml  |   76 --
 drivers/clk/mediatek/Kconfig                       |   79 ++
 drivers/clk/mediatek/Makefile                      |    8 +
 drivers/clk/mediatek/clk-mt8189-apmixedsys.c       |  196 ++++
 drivers/clk/mediatek/clk-mt8189-bus.c              |  200 ++++
 drivers/clk/mediatek/clk-mt8189-dbgao.c            |   98 ++
 drivers/clk/mediatek/clk-mt8189-dvfsrc.c           |   58 ++
 drivers/clk/mediatek/clk-mt8189-iic.c              |  122 +++
 drivers/clk/mediatek/clk-mt8189-scp.c              |   77 ++
 drivers/clk/mediatek/clk-mt8189-topckgen.c         | 1025 ++++++++++++++++++++
 drivers/clk/mediatek/clk-mt8189-ufs.c              |  133 +++
 drivers/clk/mediatek/clk-mt8189-vlpcfg.c           |  116 +++
 drivers/clk/mediatek/clk-mt8189-vlpckgen.c         |  285 ++++++
 include/dt-bindings/clock/mediatek,mt8189-clk.h    |  433 +++++++++
 include/dt-bindings/reset/mediatek,mt8189-resets.h |   17 +
 23 files changed, 2988 insertions(+), 736 deletions(-)
---
base-commit: 451b00e20bcd5526c6def9ee76f9bdb322ae9b46
change-id: 20260630-mt8189-clocks-system-base-70714e4ff2aa

Best regards,
-- 
Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>