linux-kernel - [PATCH v1 0/7] clk: mediatek: Add support for SPMI Clock Controllers

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Message-ID: <20251024083301.25845-1-angelogioacchino.delregno@collabora.com>
Date: Fri, 24 Oct 2025 10:32:54 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: sboyd@...nel.org
Cc: mturquette@...libre.com,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	matthias.bgg@...il.com,
	angelogioacchino.delregno@...labora.com,
	laura.nao@...labora.com,
	nfraprado@...labora.com,
	wenst@...omium.org,
	y.oudjana@...tonmail.com,
	linux-clk@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	kernel@...labora.com
Subject: [PATCH v1 0/7] clk: mediatek: Add support for SPMI Clock Controllers

Some new PMICs, Clock IC and combos are complex SPMI 2.0 devices that
contain multiple IPs, including clock controllers.

This series expands the MediaTek clock helpers to allow registering
clock controllers over SPMI, and adds a clock driver for the MT6685
SCK_TOP clock controller.

For now, only gate clocks are supported to reduce the complexity of
this change.

NOTE: This series depends on series [1] "SPMI: Implement sub-devices
and migrate drivers"

[1]: https://lore.kernel.org/all/20251021083219.17382-1-angelogioacchino.delregno@collabora.com

AngeloGioacchino Del Regno (7):
  clk: mediatek: Split out registration from mtk_clk_register_gates()
  clk: mediatek: clk-gate: Simplify and optimize registration iter
  clk: mediatek: clk-mtk: Split and rename __mtk_clk_simple_probe()
  clk: mediatek: Add and wire up mtk_spmi_clk_register_gates()
  clk: mediatek: Add support to register SPMI Clock Controllers
  dt-bindings: clock: Describe MT6685 PM/Clock IC Clock Controller
  clk: mediatek: Add support for MT6685 PM/Clock IC Clock Controller

 .../bindings/clock/mediatek,mt6685-clock.yaml | 37 ++++++++++
 drivers/clk/mediatek/Kconfig                  | 15 ++++
 drivers/clk/mediatek/Makefile                 |  7 +-
 drivers/clk/mediatek/clk-gate.c               | 70 ++++++++++++-------
 drivers/clk/mediatek/clk-gate.h               |  6 ++
 drivers/clk/mediatek/clk-mt6685.c             | 70 +++++++++++++++++++
 drivers/clk/mediatek/clk-mtk-spmi.c           | 62 ++++++++++++++++
 drivers/clk/mediatek/clk-mtk-spmi.h           | 31 ++++++++
 drivers/clk/mediatek/clk-mtk.c                | 66 ++++++++++++-----
 drivers/clk/mediatek/clk-mtk.h                |  5 ++
 .../dt-bindings/clock/mediatek,mt6685-clock.h | 17 +++++
 11 files changed, 339 insertions(+), 47 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/clock/mediatek,mt6685-clock.yaml
 create mode 100644 drivers/clk/mediatek/clk-mt6685.c
 create mode 100644 drivers/clk/mediatek/clk-mtk-spmi.c
 create mode 100644 drivers/clk/mediatek/clk-mtk-spmi.h
 create mode 100644 include/dt-bindings/clock/mediatek,mt6685-clock.h

-- 
2.51.1