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SubjectRe: [linux-sunxi] [PATCH 7/7] arm64: dts: allwinner: h6: Enable CPU and GPU opp tables for Beelink GS1
Hello,

On Sun, Apr 05, 2020 at 12:49:13PM +0200, Clément Péron wrote:
> Enable CPU and GPU opp tables for Beelink GS1.
>
> This needs also to change the CPU regulator min/max voltage to fit
> the OPP table.
>
> Signed-off-by: Clément Péron <peron.clem@gmail.com>
> ---
> .../arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts | 10 ++++++++--
> 1 file changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> index df6d872c34e2..8e65d56a7c85 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> @@ -4,6 +4,8 @@
> /dts-v1/;
>
> #include "sun50i-h6.dtsi"
> +#include "sun50i-h6-cpu-opp.dtsi"
> +#include "sun50i-h6-gpu-opp.dtsi"
>
> #include <dt-bindings/gpio/gpio.h>
>
> @@ -70,6 +72,10 @@
> };
> };
>
> +&cpu0 {
> + cpu-supply = <&reg_dcdca>;
> +};
> +
> &de {
> status = "okay";
> };
> @@ -226,8 +232,8 @@
>
> reg_dcdca: dcdca {
> regulator-always-on;
> - regulator-min-microvolt = <810000>;
> - regulator-max-microvolt = <1080000>;
> + regulator-min-microvolt = <820000>;
> + regulator-max-microvolt = <1160000>;

The H6 datasheet says:

- VDD-CPU Power Supply for CPU 0.81 - 1.08 V (recommended)
- VDD-CPU Power Supply for CPU -0.30 - 1.30 V (abs max)

So I guess there's no need to increase the lower limit, because it matches
the datasheet already.

regards,
o.

> regulator-name = "vdd-cpu";
> };
>
> --
> 2.20.1
>
> --
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