我用的是github上的Widora全套buildroot，全不改动的情况下，所有功能都正常。
但就是在启动kernel的时候，每次都会有一段是报错的。
请问有谁知道是什么情况吗？
下面是启动的节录:
[ 0.910851] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pe not found, using dummy regulator
[ 0.923584] ------------[ cut here ]------------
[ 0.928280] WARNING: CPU: 0 PID: 1 at drivers/spi/spidev.c:733 spidev_probe+0xcc/0x1b0
[ 0.936278] /soc/spi@1c06000/spidev@0x00: buggy DT: spidev listed directly in DT
[ 0.943704] Modules linked in:
[ 0.946782] CPU: 0 PID: 1 Comm: swapper Not tainted 5.4.58 #18
[ 0.952597] Hardware name: Allwinner suniv Family
[ 0.957412] [<c010e6a8>] (unwind_backtrace) from [<c010b9c4>] (show_stack+0x10/0x14)
[ 0.965233] [<c010b9c4>] (show_stack) from [<c01172d0>] (__warn+0xa8/0xd0)
[ 0.972111] [<c01172d0>] (__warn) from [<c0117384>] (warn_slowpath_fmt+0x8c/0xb8)
[ 0.979671] [<c0117384>] (warn_slowpath_fmt) from [<c045ec88>] (spidev_probe+0xcc/0x1b0)
[ 0.987830] [<c045ec88>] (spidev_probe) from [<c045ab00>] (spi_drv_probe+0x7c/0xa0)
[ 0.995541] [<c045ab00>] (spi_drv_probe) from [<c040b900>] (really_probe+0x1e0/0x344)
[ 1.003423] [<c040b900>] (really_probe) from [<c040bbe8>] (driver_probe_device+0x5c/0x16c)
[ 1.011705] [<c040bbe8>] (driver_probe_device) from [<c0409dc4>] (bus_for_each_drv+0x7c/0xc4)
[ 1.020292] [<c0409dc4>] (bus_for_each_drv) from [<c040b6a4>] (__device_attach+0xc8/0x13c)
[ 1.028610] [<c040b6a4>] (__device_attach) from [<c040aa74>] (bus_probe_device+0x84/0x8c)
[ 1.036841] [<c040aa74>] (bus_probe_device) from [<c0407e44>] (device_add+0x3a8/0x5f4)
[ 1.044825] [<c0407e44>] (device_add) from [<c045b168>] (spi_add_device+0x90/0x154)
[ 1.052490] [<c045b168>] (spi_add_device) from [<c045bde4>] (spi_register_controller+0x844/0xa6c)
[ 1.061415] [<c045bde4>] (spi_register_controller) from [<c045c03c>] (devm_spi_register_controller+0x30/0x6c)
[ 1.071382] [<c045c03c>] (devm_spi_register_controller) from [<c0461034>] (sun6i_spi_probe+0x1a4/0x28c)
[ 1.080834] [<c0461034>] (sun6i_spi_probe) from [<c040d6cc>] (platform_drv_probe+0x48/0x98)
[ 1.089238] [<c040d6cc>] (platform_drv_probe) from [<c040b900>] (really_probe+0x1e0/0x344)
[ 1.097543] [<c040b900>] (really_probe) from [<c040bbe8>] (driver_probe_device+0x5c/0x16c)
[ 1.105846] [<c040bbe8>] (driver_probe_device) from [<c040be98>] (device_driver_attach+0x58/0x60)
[ 1.114753] [<c040be98>] (device_driver_attach) from [<c040bef8>] (__driver_attach+0x58/0xcc)
[ 1.123287] [<c040bef8>] (__driver_attach) from [<c0409cf0>] (bus_for_each_dev+0x70/0xb4)
[ 1.131529] [<c0409cf0>] (bus_for_each_dev) from [<c040ad08>] (bus_add_driver+0x194/0x1cc)
[ 1.139847] [<c040ad08>] (bus_add_driver) from [<c040c730>] (driver_register+0x74/0x108)
[ 1.147993] [<c040c730>] (driver_register) from [<c0102c58>] (do_one_initcall+0x6c/0x1d8)
[ 1.156229] [<c0102c58>] (do_one_initcall) from [<c0900e80>] (kernel_init_freeable+0x10c/0x1cc)
[ 1.164990] [<c0900e80>] (kernel_init_freeable) from [<c06d2ff8>] (kernel_init+0x8/0x108)
[ 1.173176] [<c06d2ff8>] (kernel_init) from [<c01010e0>] (ret_from_fork+0x14/0x34)
[ 1.180776] Exception stack(0xc1833fb0 to 0xc1833ff8)
[ 1.185870] 3fa0: 00000000 00000000 00000000 00000000
[ 1.194079] 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 1.202246] 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 1.208899] ---[ end trace 0c83459f55c745b2 ]---
[ 1.214630] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.221165] ehci-platform: EHCI generic platform driver
[ 1.226827] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver离线
顺便再问另一个问题：
每次启动完半分钟后就会出现这样的提示，这个提示是什么意思呢？
# [ 31.843475] vcc3v0: disabling
[ 31.846485] vcc3v3: disabling
[ 31.849456] vcc5v0: disabling离线