[openwrt/openwrt] kernel: usb: kmod-usb-dwc3: add gadget and dual-role modes support

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/0546f8b74d5860b5a44f453b6842f51a58842cb9

commit 0546f8b74d5860b5a44f453b6842f51a58842cb9
Author: Thomas Richard <thomas.richard at bootlin.com>
AuthorDate: Fri Jun 27 10:28:08 2025 +0200

    kernel: usb: kmod-usb-dwc3: add gadget and dual-role modes support
    
    Build DWC3 driver in the right mode:
    - host mode if kernel have usb host support only.
    - gadget mode if kernel have usbgadget support only.
    - dual-role mode if kernel have both usb host and usbgadget support.
    
    Signed-off-by: Thomas Richard <thomas.richard at bootlin.com>
    Link: https://github.com/openwrt/openwrt/pull/19246
    Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
 package/kernel/linux/modules/usb.mk | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/package/kernel/linux/modules/usb.mk b/package/kernel/linux/modules/usb.mk
index d3b37311bc..af9346775e 100644
--- a/package/kernel/linux/modules/usb.mk
+++ b/package/kernel/linux/modules/usb.mk
@@ -508,17 +508,28 @@ $(eval $(call KernelPackage,usb-cdns3))
 
 
 define KernelPackage/usb-dwc3
+  SUBMENU:=$(USB_MENU)
   TITLE:=DWC3 USB controller driver
+  DEPENDS:=+USB_GADGET_SUPPORT:kmod-usb-gadget \
+	   +USB_SUPPORT:kmod-usb-core \
+	   +kmod-usb-roles
   KCONFIG:= \
 	CONFIG_USB_DWC3 \
-	CONFIG_USB_DWC3_HOST=y \
-	CONFIG_USB_DWC3_GADGET=n \
-	CONFIG_USB_DWC3_DUAL_ROLE=n \
 	CONFIG_USB_DWC3_DEBUG=n \
 	CONFIG_USB_DWC3_VERBOSE=n
+ifeq ($(CONFIG_USB_SUPPORT)$(CONFIG_USB_GADGET_SUPPORT),yy)
+  KCONFIG+= \
+	CONFIG_USB_DWC3_HOST=n \
+	CONFIG_USB_DWC3_GADGET=n \
+	CONFIG_USB_DWC3_DUAL_ROLE=y
+else
+  KCONFIG+= \
+	CONFIG_USB_DWC3_HOST=$(if $(CONFIG_USB_SUPPORT),y,n) \
+	CONFIG_USB_DWC3_GADGET=$(if $(CONFIG_USB_GADGET_SUPPORT),y,n) \
+	CONFIG_USB_DWC3_DUAL_ROLE=n
+endif
   FILES:= $(LINUX_DIR)/drivers/usb/dwc3/dwc3.ko
   AUTOLOAD:=$(call AutoLoad,54,dwc3,1)
-  $(call AddDepends/usb)
 endef
 
 define KernelPackage/usb-dwc3/description