[PATCH v2 0/7] Properly describe mt8167 watchdog and mmsys resets

[Luca Leonardo Scorcia <l.scorcia@gmail.com>]

Currently mt8167 inherits its watchdog from the included mt8516 dtsi,
which in turn falls back on mt6589-wdt. However according to the data
sheet mt8167 has 15 sw resets instead of 12, and the reset bits are
different from mt6589.

In the first two patches we improve the description of the resets for
mt6589 with values obtained from Android sources.

Then we introduce a dedicated mediatek,mt8167-wdt compatible for the
watchdog driver that describes correctly this SoC's resets. Also while
we're touching the bindings reset header, we add constants for the MMSYS
resets.

In the 6th patch we add a node for the mt8167 watchdog referring to the
new compatible in the SoC dtsi.

In the last patch, we define the mmsys reset table for the SoC. According
to the datasheet, there are 28 mmsys reset bits divided across two
adjacent registers.

Changes in v2:
- Sashiko pointed out correctly a missing entry in the mmsys reset table
  in the last patch.

Initial version: [1]

[1] https://lore.kernel.org/linux-mediatek/20260717151134.678839-1-l.scorcia@gmail.com/

Luca Leonardo Scorcia (7):
  dt-bindings: reset: Add MT6589 toprgu reset IDs
  watchdog: mediatek: Add wdt/toprgu resets for MT6589
  dt-bindings: watchdog: Add compatible for MediaTek mt8167
  dt-bindings: reset: Add reset controller constants for mt8167
  watchdog: mediatek: Add support for mt8167 TOPRGU/WDT
  arm64: dts: mt8167: Properly describe the SoC watchdog
  soc: mediatek: mtk-mmsys: Add resets for mt8167

 .../bindings/watchdog/mediatek,mtk-wdt.yaml   |  1 +
 arch/arm64/boot/dts/mediatek/mt8167.dtsi      |  7 +++
 drivers/soc/mediatek/mt8167-mmsys.h           | 41 ++++++++++++++
 drivers/soc/mediatek/mtk-mmsys.c              |  3 ++
 drivers/watchdog/mtk_wdt.c                    | 13 ++++-
 .../reset/mediatek,mt6589-resets.h            | 24 +++++++++
 .../reset/mediatek,mt8167-resets.h            | 53 +++++++++++++++++++
 7 files changed, 141 insertions(+), 1 deletion(-)
 create mode 100644 include/dt-bindings/reset/mediatek,mt6589-resets.h
 create mode 100644 include/dt-bindings/reset/mediatek,mt8167-resets.h

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2.43.0