[openwrt/openwrt] kernel: provide kmod-fixed-phy as separate kmod

[LEDE Commits]

chunkeey pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/3fabca88944e736176310be06e97f0f3cc9010cb

commit 3fabca88944e736176310be06e97f0f3cc9010cb
Author: Christian Lamparter <chunkeey at gmail.com>
AuthorDate: Thu Dec 30 20:05:15 2021 +0100

    kernel: provide kmod-fixed-phy as separate kmod
    
    Almost all targets have the fixed-phy feature built into the kernel.
    One big exception is x86. This caused a problem with the upcoming
    LAN78xx usb driver. Hence this patch breaks out the fixed-phy from
    of_mdio (which didn't include the .ko) and puts into a separate
    module.
    
    Signed-off-by: Christian Lamparter <chunkeey at gmail.com>
---
 package/kernel/linux/modules/netdevices.mk | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/package/kernel/linux/modules/netdevices.mk b/package/kernel/linux/modules/netdevices.mk
index 91f51f5be6..6d263bdc34 100644
--- a/package/kernel/linux/modules/netdevices.mk
+++ b/package/kernel/linux/modules/netdevices.mk
@@ -1034,13 +1034,28 @@ endef
 
 $(eval $(call KernelPackage,forcedeth))
 
+define KernelPackage/fixed-phy
+  SUBMENU:=$(NETWORK_DEVICES_MENU)
+  TITLE:=MDIO Bus/PHY emulation with fixed speed/link PHYs
+  DEPENDS:=+kmod-libphy
+  KCONFIG:=CONFIG_FIXED_PHY
+  FILES:=$(LINUX_DIR)/drivers/net/phy/fixed_phy.ko
+  AUTOLOAD:=$(call AutoProbe,fixed_phy)
+endef
+
+define KernelPackage/fixed-phy/description
+ Kernel driver for "fixed" MDIO Bus to cover the boards
+ and devices that use PHYs that are not connected to the real MDIO bus.
+endef
+
+$(eval $(call KernelPackage,fixed-phy))
+
 define KernelPackage/of-mdio
   SUBMENU:=$(NETWORK_DEVICES_MENU)
   TITLE:=OpenFirmware MDIO support
-  DEPENDS:=+kmod-libphy @!TARGET_x86
+  DEPENDS:=+kmod-libphy +kmod-fixed-phy @!TARGET_x86
   KCONFIG:=CONFIG_OF_MDIO
   FILES:= \
-	$(LINUX_DIR)/drivers/net/phy/fixed_phy.ko \
 	$(LINUX_DIR)/drivers/of/of_mdio.ko at lt5.10 \
 	$(LINUX_DIR)/drivers/net/mdio/of_mdio.ko at ge5.10
   AUTOLOAD:=$(call AutoLoad,41,of_mdio)