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

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Date:   Thu, 05 Jan 2023 17:34:46 +0100
From:   Jernej Škrabec <jernej.skrabec@...il.com>
To:     Chen-Yu Tsai <wens@...e.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Samuel Holland <samuel@...lland.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: Re: [PATCH 0/2] Allwinner power domain support

Dne sobota, 31. december 2022 ob 17:04:00 CET je Samuel Holland napisal(a):
> 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.

So such driver is needed for H616 for GPU? Or is power domain handling 
different there?

Best regards,
Jernej

> 
> [1]:
> https://github.com/mangopi-sbc/tina-linux-5.4/blob/main/drivers/soc/sunxi/g
> pu_domain.c [1]:
> https://github.com/mangopi-sbc/tina-linux-5.4/blob/main/drivers/soc/sunxi/p
> m_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