linux-kernel - [PATCH 0/2] Allwinner power domain support

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Date:   Sat, 31 Dec 2022 10:04:00 -0600
From:   Samuel Holland <samuel@...lland.org>
To:     Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Samuel Holland <samuel@...lland.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...ts.linux.dev
Subject: [PATCH 0/2] Allwinner power domain support

This series adds support for the power controller found in D1 and other
recent Allwinner SoCs. There is no first-party documentation, but there
are a couple of vendor drivers for different hardware revisions[1][2],
and the register definitions were easy to verify empirically.

I have tested this driver on D1 with the video engine. There is no DT
update patch here to avoid dependencies between series. The example in
the binding is what will go in the D1 DT.

[1]: https://github.com/mangopi-sbc/tina-linux-5.4/blob/main/drivers/soc/sunxi/gpu_domain.c
[1]: https://github.com/mangopi-sbc/tina-linux-5.4/blob/main/drivers/soc/sunxi/pm_domains.c


Samuel Holland (2):
  dt-bindings: power: Add Allwinner D1 PPU
  soc: sunxi: Add Allwinner D1 PPU driver

 .../power/allwinner,sun20i-d1-ppu.yaml        |  54 +++++
 drivers/soc/sunxi/Kconfig                     |   9 +
 drivers/soc/sunxi/Makefile                    |   1 +
 drivers/soc/sunxi/sun20i-ppu.c                | 207 ++++++++++++++++++
 .../power/allwinner,sun20i-d1-ppu.h           |  10 +
 5 files changed, 281 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power/allwinner,sun20i-d1-ppu.yaml
 create mode 100644 drivers/soc/sunxi/sun20i-ppu.c
 create mode 100644 include/dt-bindings/power/allwinner,sun20i-d1-ppu.h

-- 
2.37.4