linux-kernel - [PATCH v2 0/3] Allwinner D1 power domain support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230126063419.15971-1-samuel@sholland.org>
Date:   Thu, 26 Jan 2023 00:34:16 -0600
From:   Samuel Holland <samuel@...lland.org>
To:     Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Samuel Holland <samuel@...lland.org>,
        Andre Przywara <andre.przywara@....com>,
        Conor Dooley <conor@...nel.org>,
        Heiko Stuebner <heiko.stuebner@...ll.eu>,
        Palmer Dabbelt <palmer@...belt.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev
Subject: [PATCH v2 0/3] Allwinner D1 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.

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

Changes in v2:
 - Removed quotes from "PPU"
 - Fixed indentation in binding example
 - Removed possibly misleading comment from the Kconfig description
 - Include a patch adding the device tree node

Samuel Holland (3):
  dt-bindings: power: Add Allwinner D1 PPU
  soc: sunxi: Add Allwinner D1 PPU driver
  riscv: dts: allwinner: d1: Add power controller node

 .../power/allwinner,sun20i-d1-ppu.yaml        |  54 +++++
 .../boot/dts/allwinner/sunxi-d1s-t113.dtsi    |   8 +
 drivers/soc/sunxi/Kconfig                     |   8 +
 drivers/soc/sunxi/Makefile                    |   1 +
 drivers/soc/sunxi/sun20i-ppu.c                | 207 ++++++++++++++++++
 .../power/allwinner,sun20i-d1-ppu.h           |  10 +
 6 files changed, 288 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