[openwrt/openwrt] realtek: rtl838x: Enable MDIO_GPIO driver

[LEDE Commits]

svanheule pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/efffcfa43693b68028a4aed4dea151b82158cc52

commit efffcfa43693b68028a4aed4dea151b82158cc52
Author: Sander Vanheule <sander at svanheule.net>
AuthorDate: Tue Jan 21 19:57:22 2025 +0100

    realtek: rtl838x: Enable MDIO_GPIO driver
    
    The mdio-gpio driver is required to support early revision of RTL8380M
    slicon (rev A) where the auxilairy MDIO controller does not function
    correctly. Add this driver to the rtl838x kernel so devices with old
    SoCs are also able to function correctly.
    
    Signed-off-by: Sander Vanheule <sander at svanheule.net>
---
 target/linux/realtek/rtl838x/config-6.6 | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/target/linux/realtek/rtl838x/config-6.6 b/target/linux/realtek/rtl838x/config-6.6
index 58c15f7bb0..3a2dbae8c1 100644
--- a/target/linux/realtek/rtl838x/config-6.6
+++ b/target/linux/realtek/rtl838x/config-6.6
@@ -128,9 +128,11 @@ CONFIG_LIBFDT=y
 CONFIG_LOCK_DEBUGGING_SUPPORT=y
 CONFIG_MACH_REALTEK_RTL=y
 CONFIG_MARVELL_PHY=y
+CONFIG_MDIO_BITBANG=y
 CONFIG_MDIO_BUS=y
 CONFIG_MDIO_DEVICE=y
 CONFIG_MDIO_DEVRES=y
+CONFIG_MDIO_GPIO=y
 CONFIG_MDIO_I2C=y
 CONFIG_MDIO_REALTEK_OTTO_AUX=y
 CONFIG_MDIO_SMBUS=y