[PATCH] riscv: dts: spacemit: pcie: fix missing power regulator

[Yixun Lan]

The PCIe port require 3.3v power regulator for device to work properly, So
explicitly add it to fix the DT warning:

arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dtb: pcie@ca400000 (spacemit,k1-pcie): pcie@0: 'vpcie3v3-supply' is a required property
        from schema $id: http://devicetree.org/schemas/pci/spacemit,k1-pcie-host.yaml

Fixes: 0be016a4b5d1 ("riscv: dts: spacemit: PCIe and PHY-related updates")
Reported-by: Conor Dooley <conor@xxxxxxxxxx>
Signed-off-by: Yixun Lan <dlan@xxxxxxxxxx>
---
This patch try to add power regulator to PCIe port node, thus will also
fix the dts warning when doing DT schema check.

Please also note driver of spacemit PCIe request 3.3v power regulator, see
drivers/pci/controller/dwc/pcie-spacemit-k1.c:312, it's not necessary
because the controller itself doesn't need it to work. But I do see other
drivers that request the regulator in host controller driver, for example,
to power it up early before PHY initilization. I'd intentionally leave
this problem out of this fix, and will do further check & address it
later.

Problem reported by Conor Dooley, so I added a R-Y tag for him here.
---
 arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
index 5971605754b3..51f6c6a774b0 100644
--- a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
@@ -305,6 +305,7 @@ &pcie1_phy {
 
 &pcie1_port {
 	phys = <&pcie1_phy>;
+	vpcie3v3-supply = <&pcie_vcc_3v3>;
 };
 
 &pcie1 {
@@ -320,6 +321,7 @@ &pcie2_phy {
 
 &pcie2_port {
 	phys = <&pcie2_phy>;
+	vpcie3v3-supply = <&pcie_vcc_3v3>;
 };
 
 &pcie2 {

---
base-commit: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f
change-id: 20260226-k1-pcie-fix-pwr-7f26118121ac

Best regards,
-- 
Yixun Lan <dlan@xxxxxxxxxx>