I'm getting the same error on my Orange Pi PC 2. Everything else is very stable. Using the latest nightly build.
| Orange Pi PC2 | 5.38.180128 | arm64 | aarch64 | 4.14.15-sunxi64
BOARD=orangepipc2
BOARD_NAME="Orange Pi PC2"
BOARDFAMILY=sun50iw2
VERSION=5.38.180128
LINUXFAMILY=sunxi64
BRANCH=next
ARCH=arm64
IMAGE_TYPE=nightly
BOARD_TYPE=conf
INITRD_ARCH=arm64
KERNEL_IMAGE_TYPE=Imag
[ 11.537413] thermal thermal_zone0: failed to read out thermal zone (-110)
[ 11.642541] asoc-simple-card sound: i2s-hifi <-> 1c22800.i2s mapping ok
[ 11.655683] sun4i-codec 1c22c00.codec: ASoC: /soc/codec-analog@01f015c0 not registered
[ 11.663873] sun4i-codec 1c22c00.codec: Failed to register our card
[ 11.699451] sun4i-codec 1c22c00.codec: Codec <-> 1c22c00.codec mapping ok
[ 11.837283] usb_phy_generic usb_phy_generic.3.auto: usb_phy_generic.3.auto supply vcc not found, using dummy regulator
