SpacemiT: BananaPi BPI-F3: Assign the CPU power supply

Assign CPU power supply to fully enable CPU DVFS.

Signed-off-by: Patrick Yavitz <pyavitz@gmail.com>

Author: pyavitz

patch/kernel/archive/spacemit-7.0/017-BananaPi-BPI-F3-Assign-the-CPU-power-supply.patch

@@ -0,0 +1,75 @@
+From 32965dd8f484a182ec252b57f000be4a06653d55 Mon Sep 17 00:00:00 2001
+From: Shuwei Wu <shuwei.wu@mailbox.org>
+Date: Sun, 8 Mar 2026 17:37:46 -0400
+Subject: [PATCH] BananaPi BPI-F3: Assign the CPU power supply
+
+Assign CPU power supply to fully enable CPU DVFS.
+
+Signed-off-by: Shuwei Wu <shuwei.wu@mailbox.org>
+---
+ .../boot/dts/spacemit/k1-bananapi-f3.dts      | 35 ++++++++++++++++++-
+ 1 file changed, 34 insertions(+), 1 deletion(-)
+
+diff --git a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
+index 5971605754b3..a04ec4f7838d 100644
+--- a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
++++ b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
+@@ -4,6 +4,7 @@
+  */
+ 
+ #include "k1.dtsi"
++#include "k1-cpu-opp-table.dtsi"
+ #include "k1-pinctrl.dtsi"
+ 
+ / {
+@@ -86,6 +87,38 @@ &combo_phy {
+ 	status = "okay";
+ };
+ 
++&cpu_0 {
++	cpu-supply = <&buck1_3v45>;
++};
++
++&cpu_1 {
++	cpu-supply = <&buck1_3v45>;
++};
++
++&cpu_2 {
++	cpu-supply = <&buck1_3v45>;
++};
++
++&cpu_3 {
++	cpu-supply = <&buck1_3v45>;
++};
++
++&cpu_4 {
++	cpu-supply = <&buck1_3v45>;
++};
++
++&cpu_5 {
++	cpu-supply = <&buck1_3v45>;
++};
++
++&cpu_6 {
++	cpu-supply = <&buck1_3v45>;
++};
++
++&cpu_7 {
++	cpu-supply = <&buck1_3v45>;
++};
++
+ &emmc {
+ 	bus-width = <8>;
+ 	mmc-hs400-1_8v;
+@@ -193,7 +226,7 @@ pmic@41 {
+ 		vin-supply = <&reg_vcc_4v>;
+ 
+ 		regulators {
+-			buck1 {
++			buck1_3v45: buck1 {
+ 				regulator-min-microvolt = <500000>;
+ 				regulator-max-microvolt = <3450000>;
+ 				regulator-ramp-delay = <5000>;
+-- 
+2.53.0
+