zeekoe

No dtb.back on debian it seems... Thanks for your help!

Yay! For others with similar problems: downgraded kernel with armbian-config (System > Other) to 5.10.60 Restored device tree (which is probably only needed if you messed it up in the first place; armbian-config > System > Dtc) to spi@ff130000 { compatible = "rockchip,rk3288-spi\0rockchip,rk3066-spi"; clocks = <0x07 0x43 0x07 0x154>; clock-names = "spiclk\0apb_pclk"; dmas = <0x1f 0x0f 0x1f 0x10>; dma-names = "tx\0rx"; interrupts = <0x00 0x2e 0x04>; pinctrl-names = "default"; pinctrl-0 = <0x28 0x29 0x2a 0x2b 0x2c>; reg = <0x00 0xff130000 0x00 0x1000>; #address-cells = <0x01>; #size-cells = <0x00>; status = "okay"; max-freq = <0x2faf080>; phandle = <0x95>; spidev@0 { compatible = "rockchip,spi_tinker"; reg = <0x00 0x00>; spi-max-frequency = <0x2faf080>; spi-cpha = <0x01>; }; spidev@1 { compatible = "rockchip,spi_tinker"; reg = <0x01>; spi-max-frequency = <0x2faf080>; spi-cpha = <0x01>; }; }; Note that phandle is different. I know not much about device tree, but this seems to be a sequence number.

Thanks for your reply. While thinking further, I can vaguely remember that this error/warning was not new. So it might as well not be related to my problem. I found this: That could be my real problem. Might be of help to others, too, that fail after upgrade. I think I messed up the device tree thingy, if I get it restored, will post here again...

Hi Aligmsten, Thanks for pointing into the right direction. Is it possible that you elaborate a little bit more on how to specifically disable spidev@1? $ dmesg |grep spi [ 1.943067] rockchip-spi ff130000.spi: cs1 >= max 1 [ 1.943091] spi_master spi2: spi_device register error /spi@ff130000/spidev@1 [ 1.943133] spi_master spi2: Failed to create SPI device for /spi@ff130000/spidev@1 $ uname -a Linux <hostname> 5.15.48-rockchip #22.05.3 SMP PREEMPT Wed Jun 22 07:34:52 UTC 2022 armv7l GNU/Linux $ cat /boot/armbianEnv.txt verbosity=1 bootlogo=false overlay_prefix=rockchip overlays=spi2 spidev2 rootdev=UUID=<something> rootfstype=ext4 usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u I tried using armbian-config > System > Dtc, commenting out the spidev@1 parts: spi@ff130000 { compatible = "rockchip,rk3288-spi\0rockchip,rk3066-spi"; clocks = <0x07 0x43 0x07 0x154>; clock-names = "spiclk\0apb_pclk"; dmas = <0x1a 0x0f 0x1a 0x10>; dma-names = "tx\0rx"; interrupts = <0x00 0x2e 0x04>; pinctrl-names = "default"; pinctrl-0 = <0x23 0x24 0x25 0x26 0x27>; reg = <0x00 0xff130000 0x00 0x1000>; #address-cells = <0x01>; #size-cells = <0x00>; status = "okay"; max-freq = <0x2faf080>; phandle = <0x92>; spidev@0 { compatible = "rockchip,spi_tinker"; reg = <0x00 0x00>; spi-max-frequency = <0x2faf080>; spi-cpha = <0x01>; }; #spidev@1 { # compatible = "rockchip,spi_tinker"; # reg = <0x01>; # spi-max-frequency = <0x2faf080>; # spi-cpha = <0x01>; #}; }; It told me the file was wrong. Then I deleted the spidev@1 part. Now I don't have the errors anymore, but no /dev/spi*. For the record: all worked perfectly before for months, with the same configuration. After a reboot (and probably an update) it stopped working. I never had spidev2.1 though, but it just skipped it silently and I worked happily with spidev2.0.