[PATCH v2 00/35] clk: mediatek: Migrate to common probe/remove helpers and fix memory leaks

Tue Oct 13 08:16:59 PDT 2026

This series migrates most MediaTek clock drivers to the common
probe/remove helpers provided by the MTK clock framework.

Key changes:
- Fix memory leaks on module removal caused by missing
  platform_set_drvdata() calls (patches 1-6).
- Add missing MODULE_DEVICE_TABLE() (patches 7, 8).
- Add missing support for cpumux, PLL, FHCTL, and child-device
  population to the common helpers (patches 12-15).
- Convert all compatible clock drivers to use struct mtk_clk_desc
  and mtk_clk_simple_probe/remove (patches 16-35).

The memory leak and MODULE_DEVICE_TABLE() fixes are split from the
migration patches to allow backporting to stable.

Drivers not converted:
- MT6765 apmixedsys: requires direct register init.
- MT6795 apmixedsys: uses mtk_clk_register_ref2usb_tx().
- MT7629 eth/sgmiisys: uses a hacked probe sequence (multi-instance
  sgmii gates).
- MT8173 apmixedsys: uses mtk_clk_register_ref2usb_tx() and custom
  divider registration.
- MT8188/MT8195 topckgen: call devm_clk_hw_register_mux() and register
  a notifier.
- MT8196 vlpckgen: requires direct register init.
- MT8365 apmixedsys: uses devm_clk_hw_register_gate().

Patches 1-6 are based on
"[PATCH v2 0/6] clk: mediatek: fix memory leak on module removal"
(In addition fixed a compilation error in mt8173-infracfg)
https://lore.kernel.org/linux-mediatek/20260707074839.240676-1-akkun11.open@gmail.com/

Patch 5 fixes the same issue mentioned below
"[PATCH] clk: mediatek: clk-mt8173-apmixedsys: Invoke platform_set_drvdata on probe"
https://lore.kernel.org/linux-mediatek/20261010160134.112136-1-l.scorcia@gmail.com/

Patch 12 is based on
"[PATCH 1/3] clk: mediatek: clk-mtk: Add cpumux support to common probe/remove helpers"
https://lore.kernel.org/lkml/20260304181024.738391-1-akkun11.open@gmail.com/

Changes in v2:
- Add two new fixes "Fix index in composite clock unwind path" and
  "Fix memory leak in mtk_clk_register_gate()".
- Add new refactor "return 0 instead of r in __mtk_clk_simple_probe()"
- Fix missing `.data = &apmixed_desc` in the MT8167 and MT8195
  apmixedsys drivers.
- Fix PLL registration and unregistration when
  CONFIG_COMMON_CLK_MEDIATEK_FHCTL is disabled.
- Fix child-device population logic.
- Clarify the rationale in the SoC conversion commit messages.
- Minor fixes to several commit messages.
- Rebased onto `24a19b953e2a ("Linux 7.3-rc7")`
  from `075b74841bd0 ("Linux 7.2-rc6")`

Link to v1:
https://lore.kernel.org/linux-mediatek/20260803141659.559129-1-akkun11.open@gmail.com/T/

Akari Tsuyukusa (35):
  clk: mediatek: mt2712: Fix memory leak on module removal
  clk: mediatek: mt6795: Fix memory leak on module removal
  clk: mediatek: mt7622: Fix memory leak on module removal
  clk: mediatek: mt8135: Fix memory leak on module removal
  clk: mediatek: mt8173: Fix memory leak on module removal
  clk: mediatek: mt8192: Fix memory leak on module removal
  clk: mediatek: mt6735: Add missing MODULE_DEVICE_TABLE()
  clk: mediatek: mt7988-apmixed: Add missing MODULE_DEVICE_TABLE()
  clk: mediatek: Fix index in composite clock unwind path
  clk: mediatek: Fix memory leak in mtk_clk_register_gate()
  clk: mediatek: return 0 instead of r in __mtk_clk_simple_probe()
  clk: mediatek: Add cpumux support to common probe/remove helpers
  clk: mediatek: Add PLL support to common probe/remove helpers
  clk: mediatek: Add child-device population to probe/remove helpers
  clk: mediatek: Add FHCTL support to common probe/remove helpers
  clk: mediatek: mt2701: Switch to common probe/remove helpers
  clk: mediatek: mt2712-apmixedsys: Switch to common probe/remove
    helpers
  clk: mediatek: mt6735-apmixedsys: Switch to common probe/remove
    helpers
  clk: mediatek: mt6779: Switch to common probe/remove helpers
  clk: mediatek: mt6795: Switch to common probe/remove helpers
  clk: mediatek: mt6797: Switch to common probe/remove helpers
  clk: mediatek: mt7622: Switch to common probe/remove helpers
  clk: mediatek: mt7981-apmixed: Switch to common probe/remove helpers
  clk: mediatek: mt7986-apmixed: Switch to common probe/remove helpers
  clk: mediatek: mt7988-apmixed: Switch to common probe/remove helpers
  clk: mediatek: mt8135-apmixedsys: Switch to common probe/remove
    helpers
  clk: mediatek: mt8167-apmixedsys: Switch to common probe/remove
    helpers
  clk: mediatek: mt8173-infracfg: Switch to common probe/remove helpers
  clk: mediatek: mt8183: Switch to common probe/remove helpers
  clk: mediatek: mt8186-apmixedsys: Switch to common probe/remove
    helpers
  clk: mediatek: mt8188-apmixedsys: Switch to common probe/remove
    helpers
  clk: mediatek: mt8192: Switch to common probe/remove helpers
  clk: mediatek: mt8195: Switch to common probe/remove helpers
  clk: mediatek: mt8196: Switch to common probe/remove helpers
  clk: mediatek: mt8516-apmixedsys: Switch to common probe/remove
    helpers

 drivers/clk/mediatek/Kconfig                 |  34 +--
 drivers/clk/mediatek/clk-gate.c              |   4 +-
 drivers/clk/mediatek/clk-mt2701-aud.c        |  35 +--
 drivers/clk/mediatek/clk-mt2701.c            | 233 +++++--------------
 drivers/clk/mediatek/clk-mt2712-apmixedsys.c |  48 +---
 drivers/clk/mediatek/clk-mt6735-apmixedsys.c |  51 +---
 drivers/clk/mediatek/clk-mt6735-imgsys.c     |   1 +
 drivers/clk/mediatek/clk-mt6735-mfgcfg.c     |   1 +
 drivers/clk/mediatek/clk-mt6779.c            | 124 ++--------
 drivers/clk/mediatek/clk-mt6795-apmixedsys.c |   2 +
 drivers/clk/mediatek/clk-mt6795-infracfg.c   |  70 +-----
 drivers/clk/mediatek/clk-mt6795-pericfg.c    |  71 +-----
 drivers/clk/mediatek/clk-mt6797.c            | 140 ++---------
 drivers/clk/mediatek/clk-mt7622-apmixedsys.c |  60 +----
 drivers/clk/mediatek/clk-mt7622-aud.c        |  35 +--
 drivers/clk/mediatek/clk-mt7622-infracfg.c   |  70 +-----
 drivers/clk/mediatek/clk-mt7981-apmixed.c    |  37 +--
 drivers/clk/mediatek/clk-mt7986-apmixed.c    |  37 +--
 drivers/clk/mediatek/clk-mt7988-apmixed.c    |  40 +---
 drivers/clk/mediatek/clk-mt8135-apmixedsys.c |  48 +---
 drivers/clk/mediatek/clk-mt8167-apmixedsys.c |  58 ++---
 drivers/clk/mediatek/clk-mt8173-apmixedsys.c |   2 +
 drivers/clk/mediatek/clk-mt8173-infracfg.c   |  98 ++------
 drivers/clk/mediatek/clk-mt8183-apmixedsys.c |  51 +---
 drivers/clk/mediatek/clk-mt8183-audio.c      |  26 +--
 drivers/clk/mediatek/clk-mt8186-apmixedsys.c |  59 +----
 drivers/clk/mediatek/clk-mt8188-apmixedsys.c |  60 +----
 drivers/clk/mediatek/clk-mt8192-apmixedsys.c |  67 ++----
 drivers/clk/mediatek/clk-mt8192-aud.c        |  26 +--
 drivers/clk/mediatek/clk-mt8195-apmixedsys.c |  75 ++----
 drivers/clk/mediatek/clk-mt8195-apusys_pll.c |  49 +---
 drivers/clk/mediatek/clk-mt8196-apmixedsys.c |  67 +-----
 drivers/clk/mediatek/clk-mt8196-mcu.c        |  96 +++-----
 drivers/clk/mediatek/clk-mt8196-mfg.c        |  84 ++-----
 drivers/clk/mediatek/clk-mt8516-apmixedsys.c |  42 +---
 drivers/clk/mediatek/clk-mtk.c               |  90 ++++++-
 drivers/clk/mediatek/clk-mtk.h               |  12 +
 37 files changed, 496 insertions(+), 1607 deletions(-)

-- 
2.56.0