activation of SPI on fedora26 with a raspberry3

[christophe pages <pageschrist@xxxxxxxxx>]

Hello, 

I try to activate the spi on my raspberry3 using a fedora 26. 

I tried these options:

device_tree_param=spi=on

dtoverlay=spi-bcm2708

I use this kernel:

4.12.5-300.fc26.armv7hl

I see that the support in kernel seems already inside:

CONFIG_SPI=y

# CONFIG_SPI_DEBUG is not set

CONFIG_SPI_MASTER=y

But I never see the devices /dev/spi* appearing. 

I can't see any messages regarding spi in dmesg. 

I tested with a raspbian and I see them correctly. 

I think I miss somethiing. 

Could you help. 

Thanks. 

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