From: Chen-Yu Tsai <wens@csie.org>
Date: Wed, 27 Jun 2018 02:27:09 +0000 (+0800)
Subject: ARM: dts: sun8i: a83t: Add CPU regulator supplies for A83T boards
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=75ab939394fd0b262ad4b5625a55c2895a73c065;p=linux.git

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

The OPPs for the A83T CPU cores were added in v4.17 in commit 2db639d8c166
("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>
---

diff --git a/arch/arm/boot/dts/sun8i-a83t-allwinner-h8homlet-v2.dts b/arch/arm/boot/dts/sun8i-a83t-allwinner-h8homlet-v2.dts
index 36ecebaff3c04..1c012a4def16d 100644
--- a/arch/arm/boot/dts/sun8i-a83t-allwinner-h8homlet-v2.dts
+++ b/arch/arm/boot/dts/sun8i-a83t-allwinner-h8homlet-v2.dts
@@ -79,6 +79,14 @@
 	};
 };
 
+&cpu0 {
+	cpu-supply = <&reg_dcdc2>;
+};
+
+&cpu100 {
+	cpu-supply = <&reg_dcdc3>;
+};
+
 &ehci0 {
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts b/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
index 3b579d7567c80..c7ce4158d6c8b 100644
--- a/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
+++ b/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts
@@ -107,6 +107,14 @@
 	};
 };
 
+&cpu0 {
+	cpu-supply = <&reg_dcdc2>;
+};
+
+&cpu100 {
+	cpu-supply = <&reg_dcdc3>;
+};
+
 &de {
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts b/arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts
index 88decb0747ac3..e5f0645e53a7b 100644
--- a/arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts
+++ b/arch/arm/boot/dts/sun8i-a83t-cubietruck-plus.dts
@@ -145,6 +145,14 @@
 	};
 };
 
+&cpu0 {
+	cpu-supply = <&reg_dcdc2>;
+};
+
+&cpu100 {
+	cpu-supply = <&reg_dcdc3>;
+};
+
 &ehci0 {
 	/* GL830 USB-to-SATA bridge here */
 	status = "okay";