Has anybody had any luck getting SPI to work with the debian image? I’ve followed the advice here and enabled the device tree overlay, but I’m not certain this is sufficient to get SPI working. When I try to enable spi devices in /boot/hw_intfc.conf, I do get some dmesg errors however:
[ 2.132127] rockchip-spi ff1d0000.spi: Failed to request TX DMA channel
[ 2.132137] rockchip-spi ff1d0000.spi: Failed to request RX DMA channel
[ 2.132146] rockchip-spi ff1d0000.spi: no high_speed pinctrl state
There are also no spi devices in /dev, should they show up when SPI is enabled properly, or are one of the other devices the SPI controllers. Btw, I can use i2c just fine.
Thanks in advance.