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

From: Jernej Škrabec
Date: Thu Jan 05 2023 - 11:35:00 EST


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