求助 hi3516DV300 UART3 串口无法通信调试，内核打印cut here？

/dev # cat ttyAMArandom: fast init done
3
uart-pl011 120a3000.uart: no DMA platform data
------------[ cut here ]------------
WARNING: CPU: 0 PID: 182 at drivers/tty/serial/serial_core.c:440 uart_get_baud_rate+0xec/0x14c
Modules linked in: 8188eu(O) hi_mipi_rx(O) hi3516cv500_acodec(PO) hi3516cv500_adec(PO) hi3516cv500_aenc(PO) hi3516cv500_ao(PO) hi3516cv500_ai(PO) hi3516cv500_aio(PO) hi3516cv500_hdmi(PO) hi_sensor_spi(O) hi_sensor_i2c(O) hi_piris(O) hi_pwm(O) hi3516cv500_nnie(PO) hi3516cv500_ive(PO) hi3516cv500_vdec(PO) hi3516cv500_vfmw(PO) hi3516cv500_jpegd(PO) hi3516cv500_jpege(PO) hi3516cv500_h265e(PO) hi3516cv500_h264e(PO) hi3516cv500_vedu(PO) hi3516cv500_chnl(PO) hi3516cv500_venc(PO) hi3516cv500_rc(PO) hifb(O) hi3516cv500_vo(PO) hi3516cv500_vpss(PO) hi3516cv500_isp(PO) hi3516cv500_vi(PO) hi3516cv500_dis(PO) hi3516cv500_vgs(PO) hi3516cv500_gdc(PO) hi3516cv500_rgn(PO) hi3516cv500_tde(PO) hi3516cv500_sys(PO) hi3516cv500_base(PO) hi_osal(O) sys_config(O)
CPU: 0 PID: 182 Comm: cat Tainted: P           O    4.9.37 #8
Hardware name: Generic DT based system
[] (unwind_backtrace) from [] (show_stack+0x10/0x14)
[] (show_stack) from [] (dump_stack+0x84/0x98)
[] (dump_stack) from [] (__warn+0xe8/0x100)
[] (__warn) from [] (warn_slowpath_null+0x20/0x28)
[] (warn_slowpath_null) from [] (uart_get_baud_rate+0xec/0x14c)
[] (uart_get_baud_rate) from [] (pl011_set_termios+0x48/0x360)
[] (pl011_set_termios) from [] (uart_change_speed+0x30/0xe8)
[] (uart_change_speed) from [] (uart_startup.part.3+0xa8/0x140)
[] (uart_startup.part.3) from [] (tty_port_open+0x8c/0xcc)
[] (tty_port_open) from [] (uart_open+0x30/0x38)
[] (uart_open) from [] (tty_open+0xd8/0x6a8)
[] (tty_open) from [] (chrdev_open+0xc4/0x180)
[] (chrdev_open) from [] (do_dentry_open.constprop.3+0x1fc/0x304)
[] (do_dentry_open.constprop.3) from [] (path_openat+0x334/0xf10)
[] (path_openat) from [] (do_filp_open+0x60/0xc4)
[] (do_filp_open) from [] (do_sys_open+0x114/0x1c4)
[] (do_sys_open) from [] (ret_fast_syscall+0x0/0x3c)
---[ end trace ba822f1f8eb0f4e8 ]---