[PATCH] arm64: dts: marvell: armada-37xx: drop 'marvell,usb-misc-reg' properties

[Gabor Juhos]

The 'marvell,usb-misc-reg' property is present both in the EHCI and
in the XHCI USB host device nodes, however it is not documented. Thus
'make dtbs_check' produces warnings like these:

  /arch/arm64/boot/dts/marvell/armada-3720-db.dtb: usb at 58000 (marvell,armada3700-xhci): Unevaluated properties are not allowed ('marvell,usb-misc-reg' was unexpected)
          from schema $id: http://devicetree.org/schemas/usb/generic-xhci.yaml
  /arch/arm64/boot/dts/marvell/armada-3720-db.dtb: usb at 5e000 (marvell,armada-3700-ehci): Unevaluated properties are not allowed ('marvell,usb-misc-reg' was unexpected)
          from schema $id: http://devicetree.org/schemas/usb/generic-ehci.yaml

Apart from the fact that the properties are not documented, those are
not even used by any USB host drivers. At least 'git grep' says this:

  $ git grep -n 'marvell.usb-misc-reg' v7.0-rc2
  v7.0-rc2:Documentation/devicetree/bindings/phy/marvell,armada-3700-utmi-phy.yaml:30:  marvell,usb-misc-reg:
  v7.0-rc2:Documentation/devicetree/bindings/phy/marvell,armada-3700-utmi-phy.yaml:41:  - marvell,usb-misc-reg
  v7.0-rc2:Documentation/devicetree/bindings/phy/marvell,armada-3700-utmi-phy.yaml:50:      marvell,usb-misc-reg = <&usb2_syscon>;
  v7.0-rc2:arch/arm64/boot/dts/marvell/armada-37xx.dtsi:372:                              marvell,usb-misc-reg = <&usb32_syscon>;
  v7.0-rc2:arch/arm64/boot/dts/marvell/armada-37xx.dtsi:383:                              marvell,usb-misc-reg = <&usb32_syscon>;
  v7.0-rc2:arch/arm64/boot/dts/marvell/armada-37xx.dtsi:396:                              marvell,usb-misc-reg = <&usb2_syscon>;
  v7.0-rc2:arch/arm64/boot/dts/marvell/armada-37xx.dtsi:406:                              marvell,usb-misc-reg = <&usb2_syscon>;
  v7.0-rc2:drivers/phy/marvell/phy-mvebu-a3700-utmi.c:231:                                                         "marvell,usb-misc-reg");

Due to this, drop the properties for now in order to get rid of the
warnings.

Given that the platform is quite old, and its support is mature enough,
it is highly unlikely that the properties will be used in the future.
Even, if that is not the case and the properties will be needed later
by any chance, those can be added back along with the supporting code
and with a proper documentation.

Signed-off-by: Gabor Juhos <j4g8y7 at gmail.com>
---
 arch/arm64/boot/dts/marvell/armada-37xx.dtsi | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
index ea1824f5321fbb32fc4373c08a0d94bca1dc793b..44c47409f8793ae1266303607812ef481edbfbc5 100644
--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
@@ -369,7 +369,6 @@ usb3: usb at 58000 {
 				compatible = "marvell,armada3700-xhci",
 				"generic-xhci";
 				reg = <0x58000 0x4000>;
-				marvell,usb-misc-reg = <&usb32_syscon>;
 				interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&sb_periph_clk 12>;
 				phys = <&comphy0 0>, <&usb2_utmi_otg_phy>;
@@ -393,7 +392,6 @@ usb32_syscon: system-controller at 5d800 {
 			usb2: usb at 5e000 {
 				compatible = "marvell,armada-3700-ehci";
 				reg = <0x5e000 0x1000>;
-				marvell,usb-misc-reg = <&usb2_syscon>;
 				interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
 				phys = <&usb2_utmi_host_phy>;
 				phy-names = "usb";

---
base-commit: 98226a594f313442fcba38cefc1df0b6c1691c7e
change-id: 20260304-armada-37xx-drop-usb-misc-reg-e9635498cae6

Best regards,
-- 
Gabor Juhos <j4g8y7 at gmail.com>