[openwrt/openwrt] kernel: add mdio-bus-mux support

[LEDE Commits]

ynezz pushed a commit to openwrt/openwrt.git, branch openwrt-23.05:
https://git.openwrt.org/b1114c1a7a2b3ea2602d30d116cd6d72483659a2

commit b1114c1a7a2b3ea2602d30d116cd6d72483659a2
Author: Mathew McBride <matt at traverse.com.au>
AuthorDate: Mon Mar 20 04:16:04 2023 +0000

    kernel: add mdio-bus-mux support
    
    The MDIO bus multiplexing framework is used by some drivers
    such as dwmac-sun8i.
    
    As this is a per-driver requirement, set it to be hidden in the menu.
    
    Signed-off-by: Mathew McBride <matt at traverse.com.au>
    (cherry picked from commit 2dbeb607251b75b506dcc8f1294cd9ed0bac9694)
---
 package/kernel/linux/modules/netsupport.mk | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/package/kernel/linux/modules/netsupport.mk b/package/kernel/linux/modules/netsupport.mk
index b739289809..580ebb2d1b 100644
--- a/package/kernel/linux/modules/netsupport.mk
+++ b/package/kernel/linux/modules/netsupport.mk
@@ -1359,6 +1359,21 @@ endef
 
 $(eval $(call KernelPackage,mdio))
 
+define KernelPackage/mdio-bus-mux
+  SUBMENU:=$(NETWORK_SUPPORT_MENU)
+  TITLE:=MDIO bus multiplexers
+  KCONFIG:=CONFIG_MDIO_BUS_MUX
+  HIDDEN:=1
+  FILES:=$(LINUX_DIR)/drivers/net/mdio/mdio-mux.ko
+  AUTOLOAD:=$(call AutoLoad,32,mdio-mux)
+endef
+
+define KernelPackage/mdio/description
+ Kernel framework for MDIO bus multiplexers.
+endef
+
+$(eval $(call KernelPackage,mdio-bus-mux))
+
 define KernelPackage/macsec
   SUBMENU:=$(NETWORK_SUPPORT_MENU)
   TITLE:=IEEE 802.1AE MAC-level encryption (MAC)