thc013's post in Board won't boot after enabling SPI interface was marked as the answer
overlays=spi-spidev
param_spidev_spi_bus=1
or
overlays=spi-spidev spi-add-cs1
param_spidev_spi_bus=1
param_spidev_spi_cs=0
spidev is 1
installed wiringop ?
19 mosi
21 miso 22 ce (my configuration) (gpio pin 56 with wiringop)
23 clk 24 cs
so for example my spidev setting in nrf24
radio = RF24(56, 10)
and for exampe mysensors
./configure --spi-spidev-device=/dev/spidev1.0 --my-transport=rf24 --my-rf24-ce-pin=56 --my-rf24-cs-pin=42 --my-rf24-irq-pin=55
but there indeed a error in the dmesg for spi in 5.10.10 but it works tested with a nrf24 module