F1C200s使用panel simple点亮屏幕白屏问题？

kashine LV 4

如题，使用F1C200s，uboot、kernel、rootfs启动正常。使用的屏幕为40Pin RGB 800*480屏幕。

使用Linux5.2主线内核修改设备树和sun4i_tcon.c、sun4i_drv.c、sun4i_backend.c以及panel_simple.c文件后可以正常点亮屏幕，输出内容正常，可以正常看到logo。

在使用Linux5.7.1内核使用同5.2版本一样的设备树，对以上文件做同样的修改后，上电白屏，网上没有5.7.1版本的教程，特来求助。两个版本的启动log如下：

// 5.2内核正常启动

U-Boot SPL 2018.01-05679-g013ca45-dirty (Jan 08 2023 - 14:52:27)
DRAM: 64 MiB
Trying to boot from MMC1


U-Boot 2018.01-05679-g013ca45-dirty (Jan 08 2023 - 14:52:27 +0800) Allwinner Technology

CPU:   Allwinner F Series (SUNIV)
Model: Lichee Pi Nano
DRAM:  64 MiB
MMC:   SUNXI SD/MMC: 0
In:    serial@1c25000
Out:   serial@1c25000
Err:   serial@1c25000
Net:   No ethernet found.
starting USB...
No controllers found
Hit any key to stop autoboot:  0 
reading zImage
4172352 bytes read in 215 ms (18.5 MiB/s)
reading suniv-f1c100s-licheepi-nano.dtb
8003 bytes read in 26 ms (299.8 KiB/s)
## Flattened Device Tree blob at 80c08000
   Booting using the fdt blob at 0x80c08000
   Loading Device Tree to 816fb000, end 816fff42 ... OK

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 5.2.0 (project01@likaiqin-virtual-machine) (gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)) #11 Mon Jan 9 21:14:14 CST 2023
[    0.000000] CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f
[    0.000000] CPU: VIVT data cache, VIVT instruction cache
[    0.000000] OF: fdt: Machine model: Lichee Pi Nano
[    0.000000] Memory policy: Data cache writeback
[    0.000000] On node 0 totalpages: 16384
[    0.000000]   Normal zone: 128 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 16384 pages, LIFO batch:3
[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[    0.000000] pcpu-alloc: [0] 0 
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 16256
[    0.000000] Kernel command line: bootargs=console=ttyS0,115200 panic=5 rootwait root=/dev/mmcblk0p2 earlyprintk rw drm.debug=0x1f debug
[    0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
[    0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Memory: 55168K/65536K available (6144K kernel code, 240K rwdata, 1556K rodata, 1024K init, 241K bss, 10368K reserved, 0K cma-reserved, 0K highmem)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] random: get_random_bytes called from start_kernel+0x254/0x42c with crng_init=0
[    0.000047] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[    0.000126] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.000666] Console: colour dummy device 80x30
[    0.001453] printk: console [tty0] enabled
[    0.001561] Calibrating delay loop... 203.16 BogoMIPS (lpj=1015808)
[    0.070304] pid_max: default: 32768 minimum: 301
[    0.070772] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.070868] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.072534] CPU: Testing write buffer coherency: ok
[    0.074486] Setting up static identity map for 0x80100000 - 0x80100058
[    0.076767] devtmpfs: initialized
[    0.083849] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.084023] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.084368] pinctrl core: initialized pinctrl subsystem
[    0.086796] NET: Registered protocol family 16
[    0.088415] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.090685] cpuidle: using governor menu
[    0.144601] SCSI subsystem initialized
[    0.145044] usbcore: registered new interface driver usbfs
[    0.145310] usbcore: registered new interface driver hub
[    0.145556] usbcore: registered new device driver usb
[    0.146098] pps_core: LinuxPPS API ver. 1 registered
[    0.146180] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.146313] PTP clock support registered
[    0.146912] Advanced Linux Sound Architecture Driver Initialized.
[    0.148742] clocksource: Switched to clocksource timer
[    0.178202] NET: Registered protocol family 2
[    0.179957] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes)
[    0.180142] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[    0.180253] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[    0.180340] TCP: Hash tables configured (established 1024 bind 1024)
[    0.180666] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.180787] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.181366] NET: Registered protocol family 1
[    0.182913] RPC: Registered named UNIX socket transport module.
[    0.183026] RPC: Registered udp transport module.
[    0.183080] RPC: Registered tcp transport module.
[    0.183128] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.185634] NetWinder Floating Point Emulator V0.97 (double precision)
[    0.187771] Initialise system trusted keyrings
[    0.188418] workingset: timestamp_bits=30 max_order=14 bucket_order=0
[    0.212263] NFS: Registering the id_resolver key type
[    0.212427] Key type id_resolver registered
[    0.212487] Key type id_legacy registered
[    0.218551] Key type asymmetric registered
[    0.218654] Asymmetric key parser 'x509' registered
[    0.218991] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
[    0.219095] io scheduler mq-deadline registered
[    0.219148] io scheduler kyber registered
[    0.230774] suniv-f1c100s-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver
[    0.231694] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pe not found, using dummy regulator
[    0.233277] pwm-backlight backlight: backlight supply power not found, using dummy regulator
[    0.491053] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
[    0.518287] 1c25000.serial: ttyS0 at MMIO 0x1c25000 (irq = 22, base_baud = 6250000) is a 16550A
[    0.970447] printk: console [ttyS0] enabled
[    0.975794] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pa not found, using dummy regulator
[    1.008125] 1c25400.serial: ttyS1 at MMIO 0x1c25400 (irq = 23, base_baud = 6250000) is a 16550A
[    1.018971] [drm:drm_core_init] Initialized
[    1.023690] [drm:sun4i_drv_probe] Adding component /soc/display-backend@1e60000
[    1.031372] [drm:sun4i_drv_probe] Adding component /soc/lcd-controller@1c0c000
[    1.038865] [drm:sun4i_drv_traverse_endpoints] Endpoint is our panel... skipping
[    1.048124] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pd not found, using dummy regulator
[    1.061334] [drm:compare_of] Comparing of node /soc/display-backend@1e60000 with /soc/display-backend@1e60000
[    1.071494] [drm:compare_of] Comparing of node /soc/display-backend@1e60000 with /soc/lcd-controller@1c0c000
[    1.087812] SCSI Media Changer driver v0.25 
[    1.093637] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.100360] ehci-platform: EHCI generic platform driver
[    1.105960] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    1.112361] ohci-platform: OHCI generic platform driver
[    1.118095] usbcore: registered new interface driver usb-storage
[    1.125027] udc-core: couldn't find an available UDC - added [g_cdc] to list of pending drivers
[    1.134233] i2c /dev entries driver
[    1.141897] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pf not found, using dummy regulator
[    1.179915] sunxi-mmc 1c0f000.mmc: initialized, max. request size: 16384 KB
[    1.189630] usbcore: registered new interface driver usbhid
[    1.195275] usbhid: USB HID core driver
[    1.215590] NET: Registered protocol family 17
[    1.220484] Key type dns_resolver registered
[    1.227375] Loading compiled-in X.509 certificates
[    1.241677] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pd not found, using dummy regulator
[    1.252689] [drm:compare_of] Comparing of node /soc/display-backend@1e60000 with /soc/lcd-controller@1c0c000
[    1.262731] [drm:compare_of] Comparing of node /soc/lcd-controller@1c0c000 with /soc/lcd-controller@1c0c000
[    1.273109] sun4i-backend 1e60000.display-backend: Couldn't find matching frontend, frontend features disabled
[    1.284054] sun4i-drm display-engine: bound 1e60000.display-backend (ops 0xc073b2f4)
[    1.293200] sun4i-drm display-engine: bound 1c0c000.lcd-controller (ops 0xc0739f4c)
[    1.301079] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    1.307730] [drm] No driver support for vblank timestamp query.
[    1.313807] [drm:drm_minor_register] 
[    1.317529] [drm:drm_minor_register] 
[    1.322224] [drm:drm_minor_register] new minor registered 0
[    1.328333] [drm:drm_sysfs_connector_add] adding "Unknown-1" to sysfs
[    1.334987] [drm:drm_sysfs_hotplug_event] generating hotplug event
[    1.341450] [drm] Initialized sun4i-drm 1.0.0 20150629 for display-engine on minor 0
[    1.349396] [drm:drm_mode_object_get] OBJ ID: 48 (2)
[    1.354423] [drm:drm_setup_crtcs] 
[    1.357880] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:48:Unknown-1]
[    1.365595] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:48:Unknown-1] status updated from unknown to connected
[    1.376899] [drm:sun4i_rgb_mode_valid] Validating modes...
[    1.382507] [drm:sun4i_rgb_mode_valid] Horizontal parameters OK
[    1.388472] [drm:sun4i_rgb_mode_valid] Vertical parameters OK
[    1.394313] [drm:sun4i_rgb_mode_valid] RGB panel used, skipping clock rate checks
[    1.394334] [drm:sun4i_rgb_mode_valid] Clock rate OK
[    1.407190] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:48:Unknown-1] probed modes :
[    1.416262] [drm:drm_mode_debug_printmodeline] Modeline "800x480": 60 31000 800 848 888 976 480 483 496 528 0x48 0x0
[    1.426923] [drm:drm_setup_crtcs] connector 48 enabled? yes
[    1.432613] [drm:drm_setup_crtcs] Not using firmware configuration
[    1.438905] [drm:drm_setup_crtcs] looking for cmdline mode on connector 48
[    1.445826] [drm:drm_setup_crtcs] looking for preferred mode on connector 48 0
[    1.453153] [drm:drm_setup_crtcs] found mode 800x480
[    1.458164] [drm:drm_setup_crtcs] picking CRTCs for 8192x8192 config
[    1.464628] [drm:drm_setup_crtcs] desired mode 800x480 set on crtc 46 (0,0)
[    1.471701] [drm:drm_mode_object_get] OBJ ID: 48 (2)
[    1.476719] [drm:__drm_fb_helper_initial_config_and_unlock] test CRTC 0 primary plane
[    1.484683] [drm:drm_fb_helper_generic_probe] surface width(800), height(480) and bpp(32)
[    1.498149] [drm:drm_mode_addfb2] [FB:49]
[    1.502410] [drm:drm_mode_object_put.part.0] OBJ ID: 49 (2)
[    1.509178] [drm:drm_sysfs_hotplug_event] generating hotplug event
[    1.516796] [drm:drm_atomic_state_init] Allocated atomic state (ptrval)
[    1.516846] [drm:drm_atomic_get_plane_state] Added [PLANE:30:plane-0] (ptrval) state to (ptrval)
[    1.516879] [drm:drm_atomic_get_plane_state] Added [PLANE:34:plane-1] (ptrval) state to (ptrval)
[    1.516930] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for [PLANE:34:plane-1] state (ptrval)
[    1.516966] [drm:drm_atomic_get_plane_state] Added [PLANE:38:plane-2] (ptrval) state to (ptrval)
[    1.517081] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for [PLANE:38:plane-2] state (ptrval)
[    1.517121] [drm:drm_atomic_get_plane_state] Added [PLANE:42:plane-3] (ptrval) state to (ptrval)
[    1.517149] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for [PLANE:42:plane-3] state (ptrval)
[    1.517190] [drm:drm_atomic_get_crtc_state] Added [CRTC:46:crtc-0] (ptrval) state to (ptrval)
[    1.517257] [drm:drm_atomic_set_mode_for_crtc] Set [MODE:800x480] for [CRTC:46:crtc-0] state (ptrval)
[    1.517290] [drm:drm_atomic_set_crtc_for_plane] Link [PLANE:30:plane-0] state (ptrval) to [CRTC:46:crtc-0]
[    1.517322] [drm:drm_atomic_set_fb_for_plane] Set [FB:49] for [PLANE:30:plane-0] state (ptrval)
[    1.517339] [drm:drm_mode_object_get] OBJ ID: 49 (1)
[    1.517375] [drm:drm_atomic_add_affected_connectors] Adding all current connectors for [CRTC:46:crtc-0] to (ptrval)
[    1.517410] [drm:drm_mode_object_get] OBJ ID: 48 (3)
[    1.517436] [drm:drm_atomic_get_connector_state] Added [CONNECTOR:48:Unknown-1] (ptrval) state to (ptrval)
[    1.517452] [drm:drm_mode_object_get] OBJ ID: 48 (4)
[    1.517482] [drm:drm_atomic_set_crtc_for_connector] Link [CONNECTOR:48:Unknown-1] state (ptrval) to [CRTC:46:crtc-0]
[    1.517504] [drm:drm_atomic_check_only] checking (ptrval)
[    1.517560] [drm:drm_atomic_helper_check_modeset] [CRTC:46:crtc-0] mode changed
[    1.517580] [drm:drm_atomic_helper_check_modeset] [CRTC:46:crtc-0] enable changed
[    1.517599] [drm:drm_atomic_helper_check_modeset] [CRTC:46:crtc-0] active changed
[    1.517633] [drm:drm_atomic_helper_check_modeset] Updating routing for [CONNECTOR:48:Unknown-1]
[    1.517666] [drm:drm_atomic_helper_check_modeset] [CONNECTOR:48:Unknown-1] using [ENCODER:47:None-47] on [CRTC:46:crtc-0]
[    1.517690] [drm:drm_atomic_helper_check_modeset] [CRTC:46:crtc-0] needs all connectors, enable: y, active: y
[    1.517721] [drm:drm_atomic_add_affected_connectors] Adding all current connectors for [CRTC:46:crtc-0] to (ptrval)
[    1.517750] [drm:drm_atomic_add_affected_planes] Adding all current planes for [CRTC:46:crtc-0] to (ptrval)
[    1.517784] [drm:sun4i_rgb_mode_valid] Validating modes...
[    1.517800] [drm:sun4i_rgb_mode_valid] Horizontal parameters OK
[    1.517815] [drm:sun4i_rgb_mode_valid] Vertical parameters OK
[    1.517830] [drm:sun4i_rgb_mode_valid] RGB panel used, skipping clock rate checks
[    1.517845] [drm:sun4i_rgb_mode_valid] Clock rate OK
[    1.517878] [drm:drm_atomic_normalize_zpos] [CRTC:46:crtc-0] calculating normalized zpos values
[    1.517902] [drm:drm_atomic_normalize_zpos] [PLANE:30:plane-0] processing zpos value 0
[    1.517921] [drm:drm_atomic_normalize_zpos] [PLANE:30:plane-0] normalized zpos value 0
[    1.517954] [drm:sun4i_backend_atomic_check] Starting checking our planes
[    1.517982] [drm:sun4i_backend_plane_uses_scaler] Input size 800x480, output size 800x480
[    1.518015] [drm:sun4i_backend_atomic_check] Plane FB format is XR24 little-endian (0x34325258)
[    1.518032] [drm:sun4i_backend_atomic_check] Plane zpos is 0
[    1.518057] [drm:sun4i_backend_atomic_check] State valid with 1 planes, 0 alpha, 0 video, 0 YUV
[    1.518084] [drm:drm_atomic_commit] committing (ptrval)
[    1.518172] [drm:drm_calc_timestamping_constants] crtc 46: hwmode: htotal 976, vtotal 528, vdisplay 480
[    1.518201] [drm:drm_calc_timestamping_constants] crtc 46: clock 31000 kHz framedur 16623483 linedur 31483
[    1.518233] [drm:drm_atomic_helper_commit_modeset_disables] modeset on [CRTC:46:crtc-0]
[    1.522507] [drm:sun4i_tcon_get_clk_delay] TCON 0 clock delay 30
[    1.522589] [drm:sun4i_tcon_mode_set] Setting horizontal total 976, backporch 128
[    1.522612] [drm:sun4i_tcon_mode_set] Setting vertical total 528, backporch 45
[    1.522632] [drm:sun4i_tcon_mode_set] Setting HSYNC 40, VSYNC 13
[    1.522661] [drm:sun4i_tcon_set_mux.constprop.5] Muxing encoder None-47 to CRTC crtc-0: -524
[    1.522700] [drm:drm_atomic_helper_commit_modeset_disables] modeset on [ENCODER:47:None-47]
[    1.522725] [drm:drm_atomic_helper_commit_modeset_enables] enabling [CRTC:46:crtc-0]
[    1.522742] [drm:sun4i_crtc_atomic_enable] Enabling the CRTC
[    1.522801] [drm:drm_atomic_helper_commit_modeset_enables] enabling [ENCODER:47:None-47]
[    1.522819] [drm:sun4i_rgb_encoder_enable] Enabling RGB output
[    1.522862] [drm:sun4i_crtc_enable_vblank] Enabling VBLANK on crtc (ptrval)
[    1.522880] [drm:sun4i_tcon_enable_vblank] Enabling VBLANK interrupt
[    1.522915] [drm:drm_vblank_enable] enabling vblank on crtc 0, ret: 0
[    1.522971] [drm:sun4i_backend_update_layer_formats] Switching display backend interlaced mode off
[    1.523000] [drm:sun4i_backend_update_layer_buffer] Layer line width: 25600 bits
[    1.523027] [drm:sun4i_backend_update_layer_buffer] Setting buffer address to 0x03000000
[    1.523046] [drm:sun4i_backend_update_layer_buffer] Setting address lower bits to 0x18000000
[    1.523065] [drm:sun4i_backend_update_layer_buffer] Setting address high bits to 0x0
[    1.523085] [drm:sun4i_backend_update_layer_coord] Updating layer 0
[    1.523106] [drm:sun4i_backend_update_layer_coord] Primary layer, updating global size W: 800 H: 480
[    1.523126] [drm:sun4i_backend_update_layer_coord] Layer size W: 800 H: 480
[    1.523145] [drm:sun4i_backend_update_layer_coord] Layer coordinates X: 0 Y: 0
[    1.523168] [drm:sun4i_backend_update_layer_zpos] Setting layer 0's priority to 0 and pipe 0
[    1.523187] [drm:sun4i_backend_layer_enable] Enabling layer 0
[    1.523208] [drm:sun4i_crtc_atomic_flush] Committing plane changes
[    1.523223] [drm:sun4i_backend_commit] Committing changes
[    1.539569] [drm:drm_atomic_state_default_clear] Clearing atomic state (ptrval)
[    1.539663] [drm:drm_mode_object_put.part.0] OBJ ID: 48 (5)
[    1.539709] [drm:__drm_atomic_state_free] Freeing atomic state (ptrval)
[    1.539930] [drm:drm_atomic_state_init] Allocated atomic state (ptrval)
[    1.539965] [drm:drm_mode_object_get] OBJ ID: 49 (2)
[    1.539994] [drm:drm_atomic_get_plane_state] Added [PLANE:30:plane-0] (ptrval) state to (ptrval)
[    1.540028] [drm:drm_mode_object_get] OBJ ID: 50 (1)
[    1.540055] [drm:drm_atomic_get_crtc_state] Added [CRTC:46:crtc-0] (ptrval) state to (ptrval)
[    1.540084] [drm:drm_atomic_get_plane_state] Added [PLANE:34:plane-1] (ptrval) state to (ptrval)
[    1.540130] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for [PLANE:34:plane-1] state (ptrval)
[    1.540165] [drm:drm_atomic_get_plane_state] Added [PLANE:38:plane-2] (ptrval) state to (ptrval)
[    1.540192] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for [PLANE:38:plane-2] state (ptrval)
[    1.540221] [drm:drm_atomic_get_plane_state] Added [PLANE:42:plane-3] (ptrval) state to (ptrval)
[    1.540246] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for [PLANE:42:plane-3] state (ptrval)
[    1.540290] [drm:drm_atomic_set_fb_for_plane] Set [FB:49] for [PLANE:30:plane-0] state (ptrval)
[    1.540307] [drm:drm_mode_object_get] OBJ ID: 49 (3)
[    1.540325] [drm:drm_mode_object_put.part.0] OBJ ID: 49 (4)
[    1.540358] [drm:drm_atomic_add_affected_connectors] Adding all current connectors for [CRTC:46:crtc-0] to (ptrval)
[    1.540388] [drm:drm_mode_object_get] OBJ ID: 48 (5)
[    1.540402] [drm:drm_mode_object_get] OBJ ID: 48 (6)
[    1.540427] [drm:drm_atomic_get_connector_state] Added [CONNECTOR:48:Unknown-1] (ptrval) state to (ptrval)
[    1.540447] [drm:drm_mode_object_put.part.0] OBJ ID: 48 (6)
[    1.540477] [drm:drm_atomic_set_crtc_for_connector] Link [CONNECTOR:48:Unknown-1] state (ptrval) to [NOCRTC]
[    1.540496] [drm:drm_mode_object_get] OBJ ID: 48 (5)
[    1.540525] [drm:drm_atomic_set_crtc_for_connector] Link [CONNECTOR:48:Unknown-1] state (ptrval) to [CRTC:46:crtc-0]
[    1.540547] [drm:drm_atomic_check_only] checking (ptrval)
[    1.540627] [drm:drm_atomic_helper_check_modeset] Updating routing for [CONNECTOR:48:Unknown-1]
[    1.540665] [drm:drm_atomic_helper_check_modeset] [CONNECTOR:48:Unknown-1] keeps [ENCODER:47:None-47], now on [CRTC:46:crtc-0]
[    1.540718] [drm:sun4i_backend_atomic_check] Starting checking our planes
[    1.540750] [drm:sun4i_backend_plane_uses_scaler] Input size 800x480, output size 800x480
[    1.540786] [drm:sun4i_backend_atomic_check] Plane FB format is XR24 little-endian (0x34325258)
[    1.540805] [drm:sun4i_backend_atomic_check] Plane zpos is 0
[    1.540832] [drm:sun4i_backend_atomic_check] State valid with 1 planes, 0 alpha, 0 video, 0 YUV
[    1.540859] [drm:drm_atomic_commit] committing (ptrval)
[    1.540958] [drm:drm_calc_timestamping_constants] crtc 46: hwmode: htotal 976, vtotal 528, vdisplay 480
[    1.540987] [drm:drm_calc_timestamping_constants] crtc 46: clock 31000 kHz framedur 16623483 linedur 31483
[    1.541057] [drm:sun4i_backend_update_layer_formats] Switching display backend interlaced mode off
[    1.541086] [drm:sun4i_backend_update_layer_buffer] Layer line width: 25600 bits
[    1.541117] [drm:sun4i_backend_update_layer_buffer] Setting buffer address to 0x03000000
[    1.541137] [drm:sun4i_backend_update_layer_buffer] Setting address lower bits to 0x18000000
[    1.541155] [drm:sun4i_backend_update_layer_buffer] Setting address high bits to 0x0
[    1.541175] [drm:sun4i_backend_update_layer_coord] Updating layer 0
[    1.541197] [drm:sun4i_backend_update_layer_coord] Primary layer, updating global size W: 800 H: 480
[    1.541217] [drm:sun4i_backend_update_layer_coord] Layer size W: 800 H: 480
[    1.541237] [drm:sun4i_backend_update_layer_coord] Layer coordinates X: 0 Y: 0
[    1.541261] [drm:sun4i_backend_update_layer_zpos] Setting layer 0's priority to 0 and pipe 0
[    1.541281] [drm:sun4i_backend_layer_enable] Enabling layer 0
[    1.541303] [drm:sun4i_crtc_atomic_flush] Committing plane changes
[    1.541319] [drm:sun4i_backend_commit] Committing changes
[    1.551096] mmc0: host does not support reading read-only switch, assuming write-enable
[    1.555263] mmc0: new high speed SDHC card at address e624
[    1.556363] [drm:drm_atomic_state_default_clear] Clearing atomic state (ptrval)
[    1.556406] [drm:drm_mode_object_put.part.0] OBJ ID: 48 (6)
[    1.556426] [drm:drm_mode_object_put.part.0] OBJ ID: 48 (5)
[    1.556445] [drm:drm_mode_object_put.part.0] OBJ ID: 50 (2)
[    1.556469] [drm:drm_mode_object_put.part.0] OBJ ID: 49 (3)
[    1.556509] [drm:__drm_atomic_state_free] Freeing atomic state (ptrval)
[    1.577428] Console: switching to colour frame buffer device 100x30
[    1.577602] [drm:drm_atomic_state_init] Allocated atomic state (ptrval)
[    1.577645] [drm:drm_mode_object_get] OBJ ID: 49 (2)
[    1.577677] [drm:drm_atomic_get_plane_state] Added [PLANE:30:plane-0] (ptrval) state to (ptrval)
[    1.577712] [drm:drm_mode_object_get] OBJ ID: 50 (1)
[    1.577738] [drm:drm_atomic_get_crtc_state] Added [CRTC:46:crtc-0] (ptrval) state to (ptrval)
[    1.577767] [drm:drm_atomic_get_plane_state] Added [PLANE:34:plane-1] (ptrval) state to (ptrval)
[    1.577815] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for [PLANE:34:plane-1] state (ptrval)
[    1.577850] [drm:drm_atomic_get_plane_state] Added [PLANE:38:plane-2] (ptrval) state to (ptrval)
[    1.577876] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for [PLANE:38:plane-2] state (ptrval)
[    1.577906] [drm:drm_atomic_get_plane_state] Added [PLANE:42:plane-3] (ptrval) state to (ptrval)
[    1.577932] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for [PLANE:42:plane-3] state (ptrval)
[    1.577977] [drm:drm_atomic_set_fb_for_plane] Set [FB:49] for [PLANE:30:plane-0] state (ptrval)
[    1.577994] [drm:drm_mode_object_get] OBJ ID: 49 (3)
[    1.578012] [drm:drm_mode_object_put.part.0] OBJ ID: 49 (4)
[    1.578047] [drm:drm_atomic_add_affected_connectors] Adding all current connectors for [CRTC:46:crtc-0] to (ptrval)
[    1.578080] [drm:drm_mode_object_get] OBJ ID: 48 (5)
[    1.578094] [drm:drm_mode_object_get] OBJ ID: 48 (6)
[    1.578120] [drm:drm_atomic_get_connector_state] Added [CONNECTOR:48:Unknown-1] (ptrval) state to (ptrval)
[    1.578140] [drm:drm_mode_object_put.part.0] OBJ ID: 48 (6)
[    1.578170] [drm:drm_atomic_set_crtc_for_connector] Link [CONNECTOR:48:Unknown-1] state (ptrval) to [NOCRTC]
[    1.578190] [drm:drm_mode_object_get] OBJ ID: 48 (5)
[    1.578219] [drm:drm_atomic_set_crtc_for_connector] Link [CONNECTOR:48:Unknown-1] state (ptrval) to [CRTC:46:crtc-0]
[    1.578244] [drm:drm_atomic_check_only] checking (ptrval)
[    1.578329] [drm:drm_atomic_helper_check_modeset] Updating routing for [CONNECTOR:48:Unknown-1]
[    1.578369] [drm:drm_atomic_helper_check_modeset] [CONNECTOR:48:Unknown-1] keeps [ENCODER:47:None-47], now on [CRTC:46:crtc-0]
[    1.578429] [drm:sun4i_backend_atomic_check] Starting checking our planes
[    1.578460] [drm:sun4i_backend_plane_uses_scaler] Input size 800x480, output size 800x480
[    1.578493] [drm:sun4i_backend_atomic_check] Plane FB format is XR24 little-endian (0x34325258)
[    1.578512] [drm:sun4i_backend_atomic_check] Plane zpos is 0
[    1.578540] [drm:sun4i_backend_atomic_check] State valid with 1 planes, 0 alpha, 0 video, 0 YUV
[    1.578567] [drm:drm_atomic_commit] committing (ptrval)
[    1.578676] [drm:drm_calc_timestamping_constants] crtc 46: hwmode: htotal 976, vtotal 528, vdisplay 480
[    1.578707] [drm:drm_calc_timestamping_constants] crtc 46: clock 31000 kHz framedur 16623483 linedur 31483
[    1.578919] [drm:sun4i_backend_update_layer_formats] Switching display backend interlaced mode off
[    1.578956] [drm:sun4i_backend_update_layer_buffer] Layer line width: 25600 bits
[    1.578986] [drm:sun4i_backend_update_layer_buffer] Setting buffer address to 0x03000000
[    1.579007] [drm:sun4i_backend_update_layer_buffer] Setting address lower bits to 0x18000000
[    1.579027] [drm:sun4i_backend_update_layer_buffer] Setting address high bits to 0x0
[    1.579050] [drm:sun4i_backend_update_layer_coord] Updating layer 0
[    1.579072] [drm:sun4i_backend_update_layer_coord] Primary layer, updating global size W: 800 H: 480
[    1.579094] [drm:sun4i_backend_update_layer_coord] Layer size W: 800 H: 480
[    1.579113] [drm:sun4i_backend_update_layer_coord] Layer coordinates X: 0 Y: 0
[    1.579135] [drm:sun4i_backend_update_layer_zpos] Setting layer 0's priority to 0 and pipe 0
[    1.579157] [drm:sun4i_backend_layer_enable] Enabling layer 0
[    1.579179] [drm:sun4i_crtc_atomic_flush] Committing plane changes
[    1.579195] [drm:sun4i_backend_commit] Committing changes
[    1.582834] mmcblk0: mmc0:e624 SU08G 7.40 GiB 
[    1.586146]  mmcblk0: p1 p2
[    1.589745] [drm:drm_atomic_state_default_clear] Clearing atomic state (ptrval)
[    1.589789] [drm:drm_mode_object_put.part.0] OBJ ID: 48 (6)
[    1.589812] [drm:drm_mode_object_put.part.0] OBJ ID: 48 (5)
[    1.589832] [drm:drm_mode_object_put.part.0] OBJ ID: 50 (2)
[    1.589856] [drm:drm_mode_object_put.part.0] OBJ ID: 49 (3)
[    1.589892] [drm:__drm_atomic_state_free] Freeing atomic state (ptrval)
[    2.378472] random: fast init done
[    5.878038] sun4i-drm display-engine: fb0: sun4i-drmdrmfb frame buffer device
[    5.898283] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    5.929615] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    5.948647] ALSA device list:
[    5.963335]   #0: Loopback 1
[    5.978327] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[    5.998553] cfg80211: failed to load regulatory.db
[    6.262431] EXT4-fs (mmcblk0p2): recovery complete
[    6.279936] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[    6.299538] VFS: Mounted root (ext4 filesystem) on device 179:2.
[    6.320526] devtmpfs: mounted
[    6.342437] Freeing unused kernel memory: 1024K
[    6.358928] Run /sbin/init as init process
[    6.648926] [drm:vblank_disable_fn] disabling vblank on crtc 0
[    6.666079] [drm:sun4i_crtc_disable_vblank] Disabling VBLANK on crtc (ptrval)
[    6.684377] [drm:sun4i_tcon_enable_vblank] Disabling VBLANK interrupt
[    7.281989] systemd[1]: System time before build time, advancing clock.
[    7.321633] systemd[1]: Failed to lookup module alias 'autofs4': Function not implemented
[    7.400058] systemd[1]: systemd 241 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid)
[    7.458222] systemd[1]: No virtualization found in DMI
[    7.476282] systemd[1]: No virtualization found in CPUID
[    7.494040] systemd[1]: Virtualization XEN not found, /proc/xen does not exist
[    7.514600] systemd[1]: No virtualization found in /proc/device-tree/*
[    7.535006] systemd[1]: UML virtualization not found in /proc/cpuinfo.
[    7.554981] systemd[1]: This platform does not support /proc/sysinfo
[    7.574644] systemd[1]: Found VM virtualization none
[    7.592864] systemd[1]: Detected architecture arm.

// 5.7.1版本内核启动后RGB屏幕白屏，但rootfs等正常

U-Boot SPL 2018.01-05679-g013ca45-dirty (Jan 08 2023 - 14:52:27)
DRAM: 64 MiB
Trying to boot from MMC1


U-Boot 2018.01-05679-g013ca45-dirty (Jan 08 2023 - 14:52:27 +0800) Allwinner Technology

CPU:   Allwinner F Series (SUNIV)
Model: Lichee Pi Nano
DRAM:  64 MiB
MMC:   SUNXI SD/MMC: 0
In:    serial@1c25000
Out:   serial@1c25000
Err:   serial@1c25000
Net:   No ethernet found.
starting USB...
No controllers found
Hit any key to stop autoboot:  0 
reading zImage
4172352 bytes read in 215 ms (18.5 MiB/s)
reading suniv-f1c100s-licheepi-nano.dtb
8003 bytes read in 26 ms (299.8 KiB/s)
## Flattened Device Tree blob at 80c08000
   Booting using the fdt blob at 0x80c08000
   Loading Device Tree to 816fb000, end 816fff42 ... OK

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 5.2.0 (project01@likaiqin-virtual-machine) (gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)) #11 Mon Jan 9 21:14:14 CST 2023
[    0.000000] CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f
[    0.000000] CPU: VIVT data cache, VIVT instruction cache
[    0.000000] OF: fdt: Machine model: Lichee Pi Nano
[    0.000000] Memory policy: Data cache writeback
[    0.000000] On node 0 totalpages: 16384
[    0.000000]   Normal zone: 128 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 16384 pages, LIFO batch:3
[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[    0.000000] pcpu-alloc: [0] 0 
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 16256
[    0.000000] Kernel command line: bootargs=console=ttyS0,115200 panic=5 rootwait root=/dev/mmcblk0p2 earlyprintk rw drm.debug=0x1f debug
[    0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
[    0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Memory: 55168K/65536K available (6144K kernel code, 240K rwdata, 1556K rodata, 1024K init, 241K bss, 10368K reserved, 0K cma-reserved, 0K highmem)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] random: get_random_bytes called from start_kernel+0x254/0x42c with crng_init=0
[    0.000047] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[    0.000126] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.000666] Console: colour dummy device 80x30
[    0.001453] printk: console [tty0] enabled
[    0.001561] Calibrating delay loop... 203.16 BogoMIPS (lpj=1015808)
[    0.070304] pid_max: default: 32768 minimum: 301
[    0.070772] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.070868] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.072534] CPU: Testing write buffer coherency: ok
[    0.074486] Setting up static identity map for 0x80100000 - 0x80100058
[    0.076767] devtmpfs: initialized
[    0.083849] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.084023] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.084368] pinctrl core: initialized pinctrl subsystem
[    0.086796] NET: Registered protocol family 16
[    0.088415] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.090685] cpuidle: using governor menu
[    0.144601] SCSI subsystem initialized
[    0.145044] usbcore: registered new interface driver usbfs
[    0.145310] usbcore: registered new interface driver hub
[    0.145556] usbcore: registered new device driver usb
[    0.146098] pps_core: LinuxPPS API ver. 1 registered
[    0.146180] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.146313] PTP clock support registered
[    0.146912] Advanced Linux Sound Architecture Driver Initialized.
[    0.148742] clocksource: Switched to clocksource timer
[    0.178202] NET: Registered protocol family 2
[    0.179957] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes)
[    0.180142] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[    0.180253] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[    0.180340] TCP: Hash tables configured (established 1024 bind 1024)
[    0.180666] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.180787] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.181366] NET: Registered protocol family 1
[    0.182913] RPC: Registered named UNIX socket transport module.
[    0.183026] RPC: Registered udp transport module.
[    0.183080] RPC: Registered tcp transport module.
[    0.183128] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.185634] NetWinder Floating Point Emulator V0.97 (double precision)
[    0.187771] Initialise system trusted keyrings
[    0.188418] workingset: timestamp_bits=30 max_order=14 bucket_order=0
[    0.212263] NFS: Registering the id_resolver key type
[    0.212427] Key type id_resolver registered
[    0.212487] Key type id_legacy registered
[    0.218551] Key type asymmetric registered
[    0.218654] Asymmetric key parser 'x509' registered
[    0.218991] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
[    0.219095] io scheduler mq-deadline registered
[    0.219148] io scheduler kyber registered
[    0.230774] suniv-f1c100s-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver
[    0.231694] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pe not found, using dummy regulator
[    0.233277] pwm-backlight backlight: backlight supply power not found, using dummy regulator
[    0.491053] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
[    0.518287] 1c25000.serial: ttyS0 at MMIO 0x1c25000 (irq = 22, base_baud = 6250000) is a 16550A
[    0.970447] printk: console [ttyS0] enabled
[    0.975794] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pa not found, using dummy regulator
[    1.008125] 1c25400.serial: ttyS1 at MMIO 0x1c25400 (irq = 23, base_baud = 6250000) is a 16550A
[    1.018971] [drm:drm_core_init] Initialized
[    1.023690] [drm:sun4i_drv_probe] Adding component /soc/display-backend@1e60000
[    1.031372] [drm:sun4i_drv_probe] Adding component /soc/lcd-controller@1c0c000
[    1.038865] [drm:sun4i_drv_traverse_endpoints] Endpoint is our panel... skipping
[    1.048124] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pd not found, using dummy regulator
[    1.061334] [drm:compare_of] Comparing of node /soc/display-backend@1e60000 with /soc/display-backend@1e60000
[    1.071494] [drm:compare_of] Comparing of node /soc/display-backend@1e60000 with /soc/lcd-controller@1c0c000
[    1.087812] SCSI Media Changer driver v0.25 
[    1.093637] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.100360] ehci-platform: EHCI generic platform driver
[    1.105960] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    1.112361] ohci-platform: OHCI generic platform driver
[    1.118095] usbcore: registered new interface driver usb-storage
[    1.125027] udc-core: couldn't find an available UDC - added [g_cdc] to list of pending drivers
[    1.134233] i2c /dev entries driver
[    1.141897] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pf not found, using dummy regulator
[    1.179915] sunxi-mmc 1c0f000.mmc: initialized, max. request size: 16384 KB
[    1.189630] usbcore: registered new interface driver usbhid
[    1.195275] usbhid: USB HID core driver
[    1.215590] NET: Registered protocol family 17
[    1.220484] Key type dns_resolver registered
[    1.227375] Loading compiled-in X.509 certificates
[    1.241677] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pd not found, using dummy regulator
[    1.252689] [drm:compare_of] Comparing of node /soc/display-backend@1e60000 with /soc/lcd-controller@1c0c000
[    1.262731] [drm:compare_of] Comparing of node /soc/lcd-controller@1c0c000 with /soc/lcd-controller@1c0c000
[    1.273109] sun4i-backend 1e60000.display-backend: Couldn't find matching frontend, frontend features disabled
[    1.284054] sun4i-drm display-engine: bound 1e60000.display-backend (ops 0xc073b2f4)
[    1.293200] sun4i-drm display-engine: bound 1c0c000.lcd-controller (ops 0xc0739f4c)
[    1.301079] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    1.307730] [drm] No driver support for vblank timestamp query.
[    1.313807] [drm:drm_minor_register] 
[    1.317529] [drm:drm_minor_register] 
[    1.322224] [drm:drm_minor_register] new minor registered 0
[    1.328333] [drm:drm_sysfs_connector_add] adding "Unknown-1" to sysfs
[    1.334987] [drm:drm_sysfs_hotplug_event] generating hotplug event
[    1.341450] [drm] Initialized sun4i-drm 1.0.0 20150629 for display-engine on minor 0
[    1.349396] [drm:drm_mode_object_get] OBJ ID: 48 (2)
[    1.354423] [drm:drm_setup_crtcs] 
[    1.357880] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:48:Unknown-1]
[    1.365595] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:48:Unknown-1] status updated from unknown to connected
[    1.376899] [drm:sun4i_rgb_mode_valid] Validating modes...
[    1.382507] [drm:sun4i_rgb_mode_valid] Horizontal parameters OK
[    1.388472] [drm:sun4i_rgb_mode_valid] Vertical parameters OK
[    1.394313] [drm:sun4i_rgb_mode_valid] RGB panel used, skipping clock rate checks
[    1.394334] [drm:sun4i_rgb_mode_valid] Clock rate OK
[    1.407190] [drm:drm_helper_probe_single_connector_modes] [CONNECTOR:48:Unknown-1] probed modes :
[    1.416262] [drm:drm_mode_debug_printmodeline] Modeline "800x480": 60 31000 800 848 888 976 480 483 496 528 0x48 0x0
[    1.426923] [drm:drm_setup_crtcs] connector 48 enabled? yes
[    1.432613] [drm:drm_setup_crtcs] Not using firmware configuration
[    1.438905] [drm:drm_setup_crtcs] looking for cmdline mode on connector 48
[    1.445826] [drm:drm_setup_crtcs] looking for preferred mode on connector 48 0
[    1.453153] [drm:drm_setup_crtcs] found mode 800x480
[    1.458164] [drm:drm_setup_crtcs] picking CRTCs for 8192x8192 config
[    1.464628] [drm:drm_setup_crtcs] desired mode 800x480 set on crtc 46 (0,0)
[    1.471701] [drm:drm_mode_object_get] OBJ ID: 48 (2)
[    1.476719] [drm:__drm_fb_helper_initial_config_and_unlock] test CRTC 0 primary plane
[    1.484683] [drm:drm_fb_helper_generic_probe] surface width(800), height(480) and bpp(32)
[    1.498149] [drm:drm_mode_addfb2] [FB:49]
[    1.502410] [drm:drm_mode_object_put.part.0] OBJ ID: 49 (2)
[    1.509178] [drm:drm_sysfs_hotplug_event] generating hotplug event
[    1.516796] [drm:drm_atomic_state_init] Allocated atomic state (ptrval)
[    1.516846] [drm:drm_atomic_get_plane_state] Added [PLANE:30:plane-0] (ptrval) state to (ptrval)
[    1.516879] [drm:drm_atomic_get_plane_state] Added [PLANE:34:plane-1] (ptrval) state to (ptrval)
[    1.516930] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for [PLANE:34:plane-1] state (ptrval)
[    1.516966] [drm:drm_atomic_get_plane_state] Added [PLANE:38:plane-2] (ptrval) state to (ptrval)
[    1.517081] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for [PLANE:38:plane-2] state (ptrval)
[    1.517121] [drm:drm_atomic_get_plane_state] Added [PLANE:42:plane-3] (ptrval) state to (ptrval)
[    1.517149] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for [PLANE:42:plane-3] state (ptrval)
[    1.517190] [drm:drm_atomic_get_crtc_state] Added [CRTC:46:crtc-0] (ptrval) state to (ptrval)
[    1.517257] [drm:drm_atomic_set_mode_for_crtc] Set [MODE:800x480] for [CRTC:46:crtc-0] state (ptrval)
[    1.517290] [drm:drm_atomic_set_crtc_for_plane] Link [PLANE:30:plane-0] state (ptrval) to [CRTC:46:crtc-0]
[    1.517322] [drm:drm_atomic_set_fb_for_plane] Set [FB:49] for [PLANE:30:plane-0] state (ptrval)
[    1.517339] [drm:drm_mode_object_get] OBJ ID: 49 (1)
[    1.517375] [drm:drm_atomic_add_affected_connectors] Adding all current connectors for [CRTC:46:crtc-0] to (ptrval)
[    1.517410] [drm:drm_mode_object_get] OBJ ID: 48 (3)
[    1.517436] [drm:drm_atomic_get_connector_state] Added [CONNECTOR:48:Unknown-1] (ptrval) state to (ptrval)
[    1.517452] [drm:drm_mode_object_get] OBJ ID: 48 (4)
[    1.517482] [drm:drm_atomic_set_crtc_for_connector] Link [CONNECTOR:48:Unknown-1] state (ptrval) to [CRTC:46:crtc-0]
[    1.517504] [drm:drm_atomic_check_only] checking (ptrval)
[    1.517560] [drm:drm_atomic_helper_check_modeset] [CRTC:46:crtc-0] mode changed
[    1.517580] [drm:drm_atomic_helper_check_modeset] [CRTC:46:crtc-0] enable changed
[    1.517599] [drm:drm_atomic_helper_check_modeset] [CRTC:46:crtc-0] active changed
[    1.517633] [drm:drm_atomic_helper_check_modeset] Updating routing for [CONNECTOR:48:Unknown-1]
[    1.517666] [drm:drm_atomic_helper_check_modeset] [CONNECTOR:48:Unknown-1] using [ENCODER:47:None-47] on [CRTC:46:crtc-0]
[    1.517690] [drm:drm_atomic_helper_check_modeset] [CRTC:46:crtc-0] needs all connectors, enable: y, active: y
[    1.517721] [drm:drm_atomic_add_affected_connectors] Adding all current connectors for [CRTC:46:crtc-0] to (ptrval)
[    1.517750] [drm:drm_atomic_add_affected_planes] Adding all current planes for [CRTC:46:crtc-0] to (ptrval)
[    1.517784] [drm:sun4i_rgb_mode_valid] Validating modes...
[    1.517800] [drm:sun4i_rgb_mode_valid] Horizontal parameters OK
[    1.517815] [drm:sun4i_rgb_mode_valid] Vertical parameters OK
[    1.517830] [drm:sun4i_rgb_mode_valid] RGB panel used, skipping clock rate checks
[    1.517845] [drm:sun4i_rgb_mode_valid] Clock rate OK
[    1.517878] [drm:drm_atomic_normalize_zpos] [CRTC:46:crtc-0] calculating normalized zpos values
[    1.517902] [drm:drm_atomic_normalize_zpos] [PLANE:30:plane-0] processing zpos value 0
[    1.517921] [drm:drm_atomic_normalize_zpos] [PLANE:30:plane-0] normalized zpos value 0
[    1.517954] [drm:sun4i_backend_atomic_check] Starting checking our planes
[    1.517982] [drm:sun4i_backend_plane_uses_scaler] Input size 800x480, output size 800x480
[    1.518015] [drm:sun4i_backend_atomic_check] Plane FB format is XR24 little-endian (0x34325258)
[    1.518032] [drm:sun4i_backend_atomic_check] Plane zpos is 0
[    1.518057] [drm:sun4i_backend_atomic_check] State valid with 1 planes, 0 alpha, 0 video, 0 YUV
[    1.518084] [drm:drm_atomic_commit] committing (ptrval)
[    1.518172] [drm:drm_calc_timestamping_constants] crtc 46: hwmode: htotal 976, vtotal 528, vdisplay 480
[    1.518201] [drm:drm_calc_timestamping_constants] crtc 46: clock 31000 kHz framedur 16623483 linedur 31483
[    1.518233] [drm:drm_atomic_helper_commit_modeset_disables] modeset on [CRTC:46:crtc-0]
[    1.522507] [drm:sun4i_tcon_get_clk_delay] TCON 0 clock delay 30
[    1.522589] [drm:sun4i_tcon_mode_set] Setting horizontal total 976, backporch 128
[    1.522612] [drm:sun4i_tcon_mode_set] Setting vertical total 528, backporch 45
[    1.522632] [drm:sun4i_tcon_mode_set] Setting HSYNC 40, VSYNC 13
[    1.522661] [drm:sun4i_tcon_set_mux.constprop.5] Muxing encoder None-47 to CRTC crtc-0: -524
[    1.522700] [drm:drm_atomic_helper_commit_modeset_disables] modeset on [ENCODER:47:None-47]
[    1.522725] [drm:drm_atomic_helper_commit_modeset_enables] enabling [CRTC:46:crtc-0]
[    1.522742] [drm:sun4i_crtc_atomic_enable] Enabling the CRTC
[    1.522801] [drm:drm_atomic_helper_commit_modeset_enables] enabling [ENCODER:47:None-47]
[    1.522819] [drm:sun4i_rgb_encoder_enable] Enabling RGB output
[    1.522862] [drm:sun4i_crtc_enable_vblank] Enabling VBLANK on crtc (ptrval)
[    1.522880] [drm:sun4i_tcon_enable_vblank] Enabling VBLANK interrupt
[    1.522915] [drm:drm_vblank_enable] enabling vblank on crtc 0, ret: 0
[    1.522971] [drm:sun4i_backend_update_layer_formats] Switching display backend interlaced mode off
[    1.523000] [drm:sun4i_backend_update_layer_buffer] Layer line width: 25600 bits
[    1.523027] [drm:sun4i_backend_update_layer_buffer] Setting buffer address to 0x03000000
[    1.523046] [drm:sun4i_backend_update_layer_buffer] Setting address lower bits to 0x18000000
[    1.523065] [drm:sun4i_backend_update_layer_buffer] Setting address high bits to 0x0
[    1.523085] [drm:sun4i_backend_update_layer_coord] Updating layer 0
[    1.523106] [drm:sun4i_backend_update_layer_coord] Primary layer, updating global size W: 800 H: 480
[    1.523126] [drm:sun4i_backend_update_layer_coord] Layer size W: 800 H: 480
[    1.523145] [drm:sun4i_backend_update_layer_coord] Layer coordinates X: 0 Y: 0
[    1.523168] [drm:sun4i_backend_update_layer_zpos] Setting layer 0's priority to 0 and pipe 0
[    1.523187] [drm:sun4i_backend_layer_enable] Enabling layer 0
[    1.523208] [drm:sun4i_crtc_atomic_flush] Committing plane changes
[    1.523223] [drm:sun4i_backend_commit] Committing changes
[    1.539569] [drm:drm_atomic_state_default_clear] Clearing atomic state (ptrval)
[    1.539663] [drm:drm_mode_object_put.part.0] OBJ ID: 48 (5)
[    1.539709] [drm:__drm_atomic_state_free] Freeing atomic state (ptrval)
[    1.539930] [drm:drm_atomic_state_init] Allocated atomic state (ptrval)
[    1.539965] [drm:drm_mode_object_get] OBJ ID: 49 (2)
[    1.539994] [drm:drm_atomic_get_plane_state] Added [PLANE:30:plane-0] (ptrval) state to (ptrval)
[    1.540028] [drm:drm_mode_object_get] OBJ ID: 50 (1)
[    1.540055] [drm:drm_atomic_get_crtc_state] Added [CRTC:46:crtc-0] (ptrval) state to (ptrval)
[    1.540084] [drm:drm_atomic_get_plane_state] Added [PLANE:34:plane-1] (ptrval) state to (ptrval)
[    1.540130] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for [PLANE:34:plane-1] state (ptrval)
[    1.540165] [drm:drm_atomic_get_plane_state] Added [PLANE:38:plane-2] (ptrval) state to (ptrval)
[    1.540192] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for [PLANE:38:plane-2] state (ptrval)
[    1.540221] [drm:drm_atomic_get_plane_state] Added [PLANE:42:plane-3] (ptrval) state to (ptrval)
[    1.540246] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for [PLANE:42:plane-3] state (ptrval)
[    1.540290] [drm:drm_atomic_set_fb_for_plane] Set [FB:49] for [PLANE:30:plane-0] state (ptrval)
[    1.540307] [drm:drm_mode_object_get] OBJ ID: 49 (3)
[    1.540325] [drm:drm_mode_object_put.part.0] OBJ ID: 49 (4)
[    1.540358] [drm:drm_atomic_add_affected_connectors] Adding all current connectors for [CRTC:46:crtc-0] to (ptrval)
[    1.540388] [drm:drm_mode_object_get] OBJ ID: 48 (5)
[    1.540402] [drm:drm_mode_object_get] OBJ ID: 48 (6)
[    1.540427] [drm:drm_atomic_get_connector_state] Added [CONNECTOR:48:Unknown-1] (ptrval) state to (ptrval)
[    1.540447] [drm:drm_mode_object_put.part.0] OBJ ID: 48 (6)
[    1.540477] [drm:drm_atomic_set_crtc_for_connector] Link [CONNECTOR:48:Unknown-1] state (ptrval) to [NOCRTC]
[    1.540496] [drm:drm_mode_object_get] OBJ ID: 48 (5)
[    1.540525] [drm:drm_atomic_set_crtc_for_connector] Link [CONNECTOR:48:Unknown-1] state (ptrval) to [CRTC:46:crtc-0]
[    1.540547] [drm:drm_atomic_check_only] checking (ptrval)
[    1.540627] [drm:drm_atomic_helper_check_modeset] Updating routing for [CONNECTOR:48:Unknown-1]
[    1.540665] [drm:drm_atomic_helper_check_modeset] [CONNECTOR:48:Unknown-1] keeps [ENCODER:47:None-47], now on [CRTC:46:crtc-0]
[    1.540718] [drm:sun4i_backend_atomic_check] Starting checking our planes
[    1.540750] [drm:sun4i_backend_plane_uses_scaler] Input size 800x480, output size 800x480
[    1.540786] [drm:sun4i_backend_atomic_check] Plane FB format is XR24 little-endian (0x34325258)
[    1.540805] [drm:sun4i_backend_atomic_check] Plane zpos is 0
[    1.540832] [drm:sun4i_backend_atomic_check] State valid with 1 planes, 0 alpha, 0 video, 0 YUV
[    1.540859] [drm:drm_atomic_commit] committing (ptrval)
[    1.540958] [drm:drm_calc_timestamping_constants] crtc 46: hwmode: htotal 976, vtotal 528, vdisplay 480
[    1.540987] [drm:drm_calc_timestamping_constants] crtc 46: clock 31000 kHz framedur 16623483 linedur 31483
[    1.541057] [drm:sun4i_backend_update_layer_formats] Switching display backend interlaced mode off
[    1.541086] [drm:sun4i_backend_update_layer_buffer] Layer line width: 25600 bits
[    1.541117] [drm:sun4i_backend_update_layer_buffer] Setting buffer address to 0x03000000
[    1.541137] [drm:sun4i_backend_update_layer_buffer] Setting address lower bits to 0x18000000
[    1.541155] [drm:sun4i_backend_update_layer_buffer] Setting address high bits to 0x0
[    1.541175] [drm:sun4i_backend_update_layer_coord] Updating layer 0
[    1.541197] [drm:sun4i_backend_update_layer_coord] Primary layer, updating global size W: 800 H: 480
[    1.541217] [drm:sun4i_backend_update_layer_coord] Layer size W: 800 H: 480
[    1.541237] [drm:sun4i_backend_update_layer_coord] Layer coordinates X: 0 Y: 0
[    1.541261] [drm:sun4i_backend_update_layer_zpos] Setting layer 0's priority to 0 and pipe 0
[    1.541281] [drm:sun4i_backend_layer_enable] Enabling layer 0
[    1.541303] [drm:sun4i_crtc_atomic_flush] Committing plane changes
[    1.541319] [drm:sun4i_backend_commit] Committing changes
[    1.551096] mmc0: host does not support reading read-only switch, assuming write-enable
[    1.555263] mmc0: new high speed SDHC card at address e624
[    1.556363] [drm:drm_atomic_state_default_clear] Clearing atomic state (ptrval)
[    1.556406] [drm:drm_mode_object_put.part.0] OBJ ID: 48 (6)
[    1.556426] [drm:drm_mode_object_put.part.0] OBJ ID: 48 (5)
[    1.556445] [drm:drm_mode_object_put.part.0] OBJ ID: 50 (2)
[    1.556469] [drm:drm_mode_object_put.part.0] OBJ ID: 49 (3)
[    1.556509] [drm:__drm_atomic_state_free] Freeing atomic state (ptrval)
[    1.577428] Console: switching to colour frame buffer device 100x30
[    1.577602] [drm:drm_atomic_state_init] Allocated atomic state (ptrval)
[    1.577645] [drm:drm_mode_object_get] OBJ ID: 49 (2)
[    1.577677] [drm:drm_atomic_get_plane_state] Added [PLANE:30:plane-0] (ptrval) state to (ptrval)
[    1.577712] [drm:drm_mode_object_get] OBJ ID: 50 (1)
[    1.577738] [drm:drm_atomic_get_crtc_state] Added [CRTC:46:crtc-0] (ptrval) state to (ptrval)
[    1.577767] [drm:drm_atomic_get_plane_state] Added [PLANE:34:plane-1] (ptrval) state to (ptrval)
[    1.577815] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for [PLANE:34:plane-1] state (ptrval)
[    1.577850] [drm:drm_atomic_get_plane_state] Added [PLANE:38:plane-2] (ptrval) state to (ptrval)
[    1.577876] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for [PLANE:38:plane-2] state (ptrval)
[    1.577906] [drm:drm_atomic_get_plane_state] Added [PLANE:42:plane-3] (ptrval) state to (ptrval)
[    1.577932] [drm:drm_atomic_set_fb_for_plane] Set [NOFB] for [PLANE:42:plane-3] state (ptrval)
[    1.577977] [drm:drm_atomic_set_fb_for_plane] Set [FB:49] for [PLANE:30:plane-0] state (ptrval)
[    1.577994] [drm:drm_mode_object_get] OBJ ID: 49 (3)
[    1.578012] [drm:drm_mode_object_put.part.0] OBJ ID: 49 (4)
[    1.578047] [drm:drm_atomic_add_affected_connectors] Adding all current connectors for [CRTC:46:crtc-0] to (ptrval)
[    1.578080] [drm:drm_mode_object_get] OBJ ID: 48 (5)
[    1.578094] [drm:drm_mode_object_get] OBJ ID: 48 (6)
[    1.578120] [drm:drm_atomic_get_connector_state] Added [CONNECTOR:48:Unknown-1] (ptrval) state to (ptrval)
[    1.578140] [drm:drm_mode_object_put.part.0] OBJ ID: 48 (6)
[    1.578170] [drm:drm_atomic_set_crtc_for_connector] Link [CONNECTOR:48:Unknown-1] state (ptrval) to [NOCRTC]
[    1.578190] [drm:drm_mode_object_get] OBJ ID: 48 (5)
[    1.578219] [drm:drm_atomic_set_crtc_for_connector] Link [CONNECTOR:48:Unknown-1] state (ptrval) to [CRTC:46:crtc-0]
[    1.578244] [drm:drm_atomic_check_only] checking (ptrval)
[    1.578329] [drm:drm_atomic_helper_check_modeset] Updating routing for [CONNECTOR:48:Unknown-1]
[    1.578369] [drm:drm_atomic_helper_check_modeset] [CONNECTOR:48:Unknown-1] keeps [ENCODER:47:None-47], now on [CRTC:46:crtc-0]
[    1.578429] [drm:sun4i_backend_atomic_check] Starting checking our planes
[    1.578460] [drm:sun4i_backend_plane_uses_scaler] Input size 800x480, output size 800x480
[    1.578493] [drm:sun4i_backend_atomic_check] Plane FB format is XR24 little-endian (0x34325258)
[    1.578512] [drm:sun4i_backend_atomic_check] Plane zpos is 0
[    1.578540] [drm:sun4i_backend_atomic_check] State valid with 1 planes, 0 alpha, 0 video, 0 YUV
[    1.578567] [drm:drm_atomic_commit] committing (ptrval)
[    1.578676] [drm:drm_calc_timestamping_constants] crtc 46: hwmode: htotal 976, vtotal 528, vdisplay 480
[    1.578707] [drm:drm_calc_timestamping_constants] crtc 46: clock 31000 kHz framedur 16623483 linedur 31483
[    1.578919] [drm:sun4i_backend_update_layer_formats] Switching display backend interlaced mode off
[    1.578956] [drm:sun4i_backend_update_layer_buffer] Layer line width: 25600 bits
[    1.578986] [drm:sun4i_backend_update_layer_buffer] Setting buffer address to 0x03000000
[    1.579007] [drm:sun4i_backend_update_layer_buffer] Setting address lower bits to 0x18000000
[    1.579027] [drm:sun4i_backend_update_layer_buffer] Setting address high bits to 0x0
[    1.579050] [drm:sun4i_backend_update_layer_coord] Updating layer 0
[    1.579072] [drm:sun4i_backend_update_layer_coord] Primary layer, updating global size W: 800 H: 480
[    1.579094] [drm:sun4i_backend_update_layer_coord] Layer size W: 800 H: 480
[    1.579113] [drm:sun4i_backend_update_layer_coord] Layer coordinates X: 0 Y: 0
[    1.579135] [drm:sun4i_backend_update_layer_zpos] Setting layer 0's priority to 0 and pipe 0
[    1.579157] [drm:sun4i_backend_layer_enable] Enabling layer 0
[    1.579179] [drm:sun4i_crtc_atomic_flush] Committing plane changes
[    1.579195] [drm:sun4i_backend_commit] Committing changes
[    1.582834] mmcblk0: mmc0:e624 SU08G 7.40 GiB 
[    1.586146]  mmcblk0: p1 p2
[    1.589745] [drm:drm_atomic_state_default_clear] Clearing atomic state (ptrval)
[    1.589789] [drm:drm_mode_object_put.part.0] OBJ ID: 48 (6)
[    1.589812] [drm:drm_mode_object_put.part.0] OBJ ID: 48 (5)
[    1.589832] [drm:drm_mode_object_put.part.0] OBJ ID: 50 (2)
[    1.589856] [drm:drm_mode_object_put.part.0] OBJ ID: 49 (3)
[    1.589892] [drm:__drm_atomic_state_free] Freeing atomic state (ptrval)
[    2.378472] random: fast init done
[    5.878038] sun4i-drm display-engine: fb0: sun4i-drmdrmfb frame buffer device
[    5.898283] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    5.929615] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    5.948647] ALSA device list:
[    5.963335]   #0: Loopback 1
[    5.978327] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[    5.998553] cfg80211: failed to load regulatory.db
[    6.262431] EXT4-fs (mmcblk0p2): recovery complete
[    6.279936] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[    6.299538] VFS: Mounted root (ext4 filesystem) on device 179:2.
[    6.320526] devtmpfs: mounted
[    6.342437] Freeing unused kernel memory: 1024K
[    6.358928] Run /sbin/init as init process
[    6.648926] [drm:vblank_disable_fn] disabling vblank on crtc 0
[    6.666079] [drm:sun4i_crtc_disable_vblank] Disabling VBLANK on crtc (ptrval)
[    6.684377] [drm:sun4i_tcon_enable_vblank] Disabling VBLANK interrupt
[    7.281989] systemd[1]: System time before build time, advancing clock.
[    7.321633] systemd[1]: Failed to lookup module alias 'autofs4': Function not implemented
[    7.400058] systemd[1]: systemd 241 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid)
[    7.458222] systemd[1]: No virtualization found in DMI
[    7.476282] systemd[1]: No virtualization found in CPUID
[    7.494040] systemd[1]: Virtualization XEN not found, /proc/xen does not exist
[    7.514600] systemd[1]: No virtualization found in /proc/device-tree/*
[    7.535006] systemd[1]: UML virtualization not found in /proc/cpuinfo.
[    7.554981] systemd[1]: This platform does not support /proc/sysinfo
[    7.574644] systemd[1]: Found VM virtualization none
[    7.592864] systemd[1]: Detected architecture arm.

whycan晕哥 LV 9

@kashine
mainline linux 哪个版本能用就建议先用着那个版本．

kashine LV 4

@whycan 好的晕哥。