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SPMI: MediaTek: Add support for multi-bus

From:  AngeloGioacchino Del Regno <angelogioacchino.delregno-AT-collabora.com>
To:  sboyd-AT-kernel.org
Subject:  [PATCH v3 0/5] SPMI: MediaTek: Add support for multi-bus
Date:  Thu, 16 Oct 2025 11:39:44 +0200
Message-ID:  <20251016093949.127326-1-angelogioacchino.delregno@collabora.com>
Cc:  robh-AT-kernel.org, krzk+dt-AT-kernel.org, conor+dt-AT-kernel.org, matthias.bgg-AT-gmail.com, angelogioacchino.delregno-AT-collabora.com, hsin-hsiung.wang-AT-mediatek.com, linux-kernel-AT-vger.kernel.org, devicetree-AT-vger.kernel.org, linux-arm-kernel-AT-lists.infradead.org, linux-mediatek-AT-lists.infradead.org, kernel-AT-collabora.com
Archive-link:  Article

Changes in v3:
 - Added Fixes tag to commit 3, collected R-b tag from wenst

Changes in v2:
 - Fixed indentation error in dt-bindings

This series adds basic support for multi-bus (multi-master) SPMI
controllers, as found in the MediaTek MT8196 Chromebook SoC and
the MediaTek MT6991 Dimensity 9400 Smartphone SoC, including RCS
interrupt handling and per-bus registration.

AngeloGioacchino Del Regno (5):
  dt-bindings: spmi: Add MediaTek MT8196 SPMI 2 Arbiter/Controllers
  spmi: mtk-pmif: Add multi-bus support for SPMI 2.0
  spmi: mtk-pmif: Keep spinlock until read is fully done
  spmi: mtk-pmif: Implement Request Capable Slave (RCS) interrupt
  spmi: mtk-pmif: Add support for MT8196 SPMI Controller

 .../bindings/spmi/mediatek,mt8196-spmi.yaml   | 138 +++++
 drivers/spmi/spmi-mtk-pmif.c                  | 471 +++++++++++++++---
 2 files changed, 530 insertions(+), 79 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/spmi/mediatek,mt8196-spmi.yaml

-- 
2.51.0




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