spi 驱动不能使用

cnrobot

firefly@firefly:~$ dmesg | grep spi
[    1.278569] rockchip-spi ff1c0000.spi: Failed to request TX DMA channel
[    1.279170] rockchip-spi ff1c0000.spi: Failed to request RX DMA channel
[    1.279755] rockchip-spi ff1c0000.spi: no high_speed pinctrl state
[    1.281334] register spi return v = :0
[    1.282417] rockchip-pinctrl pinctrl: pin gpio3-7 already requested by ff1c0000.spi; cannot claim for fe300000.ethernet

firefly@firefly:~$ sudo ./a.out -D /dev/spidev0.0 -s 200000                     spi mode: 0x0
bits per word: 8
max speed: 200000 Hz (200 KHz)
333333
RX | FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF  | ................................

fengc234

你好，我也出现了这样的打印信息，请问你的问题后来是怎么解决的