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

Samuel Holland
2023-01-26T06:34:24Z

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

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2.37.4