linux-kernel - [PATCH 0/3] mtk-pm-domains: Use 'syscon' phandle for SCPSYS regmap

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Date:   Mon, 11 Jul 2022 14:25:00 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     robh+dt@...nel.org
Cc:     krzysztof.kozlowski+dt@...aro.org, matthias.bgg@...il.com,
        angelogioacchino.delregno@...labora.com,
        chun-jie.chen@...iatek.com, weiyi.lu@...iatek.com,
        mbrugger@...e.com, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, kernel@...labora.com,
        nfraprado@...labora.com
Subject: [PATCH 0/3] mtk-pm-domains: Use 'syscon' phandle for SCPSYS regmap

After an attempt by MediaTek to upstream MT8186, MT8192 and MT8195
devicetrees, Krzysztof brought up a discussion in which it emerged
that the usage of a 'simple-mfd' device is not an optimal choice for
a number of reasons [1].

Reading that made me just write this simple code to stop nesting the
SPM power-controller node inside of a "syscon", "simple-mfd" node,
also allowing to move it outside of the main soc bus.

[1]: https://patchwork.kernel.org/project/linux-mediatek/patch/20220704100028.19932-9-tinghan.shen@mediatek.com/

AngeloGioacchino Del Regno (3):
  dt-bindings: power: mediatek: Document phandle to SCPSYS syscon node
  dt-bindings: power: mediatek: Update example to use phandle to syscon
  soc: mediatek: pm-domains: Grab SCPSYS registers from phandle to
    syscon

 .../power/mediatek,power-controller.yaml      | 130 +++++++++---------
 drivers/soc/mediatek/mtk-pm-domains.c         |  16 ++-
 2 files changed, 77 insertions(+), 69 deletions(-)

-- 
2.35.1