[PATCH 4/4] arm64: dts: allwinner: a523: Add power controller device nodes
Andre Przywara
andre.przywara at arm.com
Sun Jul 6 16:37:10 PDT 2025
On Fri, 27 Jun 2025 23:29:18 +0800
Chen-Yu Tsai <wens at kernel.org> wrote:
> From: Chen-Yu Tsai <wens at csie.org>
>
> The A523 SoC family has two power controllers, one based on the existing
> PPU, and one newer one based on ARM's PCK-600.
>
> Add device nodes for both of them.
Compared against the manual, that matches up. Might be worth to mention
the reliance on your RST_BUS_R_PPU0 patch, otherwise some bots might
scream.
> Signed-off-by: Chen-Yu Tsai <wens at csie.org>
Reviewed-by: Andre Przywara <andre.przywara at arm.com>
Cheers,
Andre
> ---
> arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
> index 6f62201fd739..255e0ef98219 100644
> --- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
> @@ -7,6 +7,8 @@
> #include <dt-bindings/clock/sun55i-a523-r-ccu.h>
> #include <dt-bindings/reset/sun55i-a523-ccu.h>
> #include <dt-bindings/reset/sun55i-a523-r-ccu.h>
> +#include <dt-bindings/power/allwinner,sun55i-a523-ppu.h>
> +#include <dt-bindings/power/allwinner,sun55i-a523-pck600.h>
>
> / {
> interrupt-parent = <&gic>;
> @@ -576,6 +578,14 @@ mdio0: mdio {
> };
> };
>
> + ppu: power-controller at 7001400 {
> + compatible = "allwinner,sun55i-a523-ppu";
> + reg = <0x07001400 0x400>;
> + clocks = <&r_ccu CLK_BUS_R_PPU1>;
> + resets = <&r_ccu RST_BUS_R_PPU1>;
> + #power-domain-cells = <1>;
> + };
> +
> r_ccu: clock-controller at 7010000 {
> compatible = "allwinner,sun55i-a523-r-ccu";
> reg = <0x7010000 0x250>;
> @@ -622,6 +632,14 @@ r_i2c_pins: r-i2c-pins {
> };
> };
>
> + pck600: power-controller at 7060000 {
> + compatible = "allwinner,sun55i-a523-pck-600";
> + reg = <0x07060000 0x8000>;
> + clocks = <&r_ccu CLK_BUS_R_PPU0>;
> + resets = <&r_ccu RST_BUS_R_PPU0>;
> + #power-domain-cells = <1>;
> + };
> +
> r_i2c0: i2c at 7081400 {
> compatible = "allwinner,sun55i-a523-i2c",
> "allwinner,sun8i-v536-i2c",
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