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ARM: dts: sun8i: a83t: Add CPU regulator supplies for A83T boards

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The OPPs for the A83T CPU cores were added in v4.17 in commit 2db639d8c1
("ARM: dts: sun8i: a83t: add stable OPP tables and CPUfreq"), but board
level regulator supplies for the CPU clusters were only added for the
TBS-A711 tablet. This means the other A83T boards do not benefit from
voltage scaling, or worse, if the implementation does not scale the
frequency when the voltage is fixed, no benefit at all.

Add board level CPU cluster power supplies to all the A83T development
boards, so they can have proper dynamic CPU voltage and frequency scaling.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
This commit is contained in:
Chen-Yu Tsai 2018-06-27 10:27:09 +08:00 committed by Maxime Ripard
parent db49c68259
commit 75ab939394
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GPG Key ID: D2B4C094214DAF74
3 changed files with 24 additions and 0 deletions
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8
arch/arm/boot/dts/sun8i-a83t-allwinner-h8homlet-v2.dts
View File

@ -79,6 +79,14 @@
};
};
&cpu0 {
cpu-supply = <&reg_dcdc2>;
};
&cpu100 {
cpu-supply = <&reg_dcdc3>;
};
&ehci0 {
status = "okay";
};

8
arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
View File

@ -107,6 +107,14 @@
};
};
&cpu0 {
cpu-supply = <&reg_dcdc2>;
};
&cpu100 {
cpu-supply = <&reg_dcdc3>;
};
&de {
status = "okay";
};

8
arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts
View File

@ -145,6 +145,14 @@
};
};
&cpu0 {
cpu-supply = <&reg_dcdc2>;
};
&cpu100 {
cpu-supply = <&reg_dcdc3>;
};
&ehci0 {
/* GL830 USB-to-SATA bridge here */
status = "okay";