| Message ID | 20230126063419.15971-4-samuel@sholland.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Allwinner D1 power domain support | expand |
Dne četrtek, 26. januar 2023 ob 07:34:19 CET je Samuel Holland napisal(a): > The Allwinner D1 family of SoCs contain a PPU power domain controller > separate from the PRCM. It can power down the video engine and DSP, and > it contains special logic for hardware-assisted CPU idle. > > Signed-off-by: Samuel Holland <samuel@sholland.org> Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> Best regards, Jernej > --- > > Changes in v2: > - Include a patch adding the device tree node > > arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi > b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi index > 3723612b1fd8..6fadcee7800f 100644 > --- a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi > +++ b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi > @@ -799,6 +799,14 @@ tcon_tv0_out_tcon_top_hdmi: endpoint { > }; > }; > > + ppu: power-controller@7001000 { > + compatible = "allwinner,sun20i-d1-ppu"; > + reg = <0x7001000 0x1000>; > + clocks = <&r_ccu CLK_BUS_R_PPU>; > + resets = <&r_ccu RST_BUS_R_PPU>; > + #power-domain-cells = <1>; > + }; > + > r_ccu: clock-controller@7010000 { > compatible = "allwinner,sun20i-d1-r-ccu"; > reg = <0x7010000 0x400>;
diff --git a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi index 3723612b1fd8..6fadcee7800f 100644 --- a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi +++ b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi @@ -799,6 +799,14 @@ tcon_tv0_out_tcon_top_hdmi: endpoint { }; }; + ppu: power-controller@7001000 { + compatible = "allwinner,sun20i-d1-ppu"; + reg = <0x7001000 0x1000>; + clocks = <&r_ccu CLK_BUS_R_PPU>; + resets = <&r_ccu RST_BUS_R_PPU>; + #power-domain-cells = <1>; + }; + r_ccu: clock-controller@7010000 { compatible = "allwinner,sun20i-d1-r-ccu"; reg = <0x7010000 0x400>;
The Allwinner D1 family of SoCs contain a PPU power domain controller separate from the PRCM. It can power down the video engine and DSP, and it contains special logic for hardware-assisted CPU idle. Signed-off-by: Samuel Holland <samuel@sholland.org> --- Changes in v2: - Include a patch adding the device tree node arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+)