此处进行以下设置：TinkerBoard-S，带有 rk3288 芯片，运行带有旧内核 4.4.199 的 armbian
现在我想在现有的基础上添加一个覆盖层。现有的如下所示：
dsi@ff960000 {
reg = <0x0 0xff960000 0x0 0x4000>;
interrupts = <0x0 0x13 0x4>;
compatible = "rockchip,rk3288-mipi-dsi", "snps,dw-mipi-dsi";
clock-names = "ref", "pclk";
reset-names = "apb";
clocks = <0x7 0x7e 0x7 0x164>;
power-domains = <0x72 0x9>;
resets = <0x7 0x73>;
status = "okay";
#address-cells = <0x1>;
phandle = <0xe9>;
#size-cells = <0x0>;
rockchip,grf = <0x47>;
ports {
#address-cells = <0x1>;
#size-cells = <0x0>;
port {
#address-cells = <0x1>;
phandle = <0xea>;
#size-cells = <0x0>;
endpoint@0 {
reg = <0x0>;
remote-endpoint = <0x89>;
phandle = <0x81>;
};
endpoint@1 {
reg = <0x1>;
remote-endpoint = <0x8a>;
phandle = <0x86>;
};
};
};
mipi-panel {
reg = <0x0>;
compatible = "asus,tc358762";
status = "okay";
phandle = <0xeb>;
};
};
dsi@ff964000 {
reg = <0x0 0xff964000 0x0 0x4000>;
interrupts = <0x0 0x14 0x4>;
compatible = "rockchip,rk3288-mipi-dsi", "snps,dw-mipi-dsi";
clock-names = "ref", "pclk";
reset-names = "apb";
clocks = <0x7 0x7e 0x7 0x165>;
power-domains = <0x72 0x9>;
resets = <0x7 0x74>;
status = "disabled";
#address-cells = <0x1>;
phandle = <0xec>;
#size-cells = <0x0>;
rockchip,grf = <0x47>;
ports {
#address-cells = <0x1>;
#size-cells = <0x0>;
port {
#address-cells = <0x1>;
phandle = <0xed>;
#size-cells = <0x0>;
endpoint@0 {
reg = <0x0>;
remote-endpoint = <0x8b>;
phandle = <0x83>;
};
endpoint@1 {
reg = <0x1>;
remote-endpoint = <0x8c>;
phandle = <0x88>;
};
};
};
};
....
aliases {
i2c0 = "/i2c@ff650000";
i2c1 = "/i2c@ff140000";
i2c2 = "/i2c@ff660000";
i2c3 = "/i2c@ff150000";
i2c4 = "/i2c@ff160000";
i2c5 = "/i2c@ff170000";
dsi0 = "/dsi@ff960000";
dsi1 = "/dsi@ff964000";
spi0 = "/spi@ff110000";
spi1 = "/spi@ff120000";
spi2 = "/spi@ff130000";
mshc0 = "/dwmmc@ff0f0000";
mshc1 = "/dwmmc@ff0c0000";
mshc2 = "/dwmmc@ff0d0000";
mshc3 = "/dwmmc@ff0e0000";
serial0 = "/serial@ff180000";
serial1 = "/serial@ff190000";
serial2 = "/serial@ff690000";
serial3 = "/serial@ff1b0000";
serial4 = "/serial@ff1c0000";
testcase-alias = "/testcase-data";
ethernet0 = "/ethernet@ff290000";
};
现在我想将一个不同的面板附加到 dsi0。因此我创建并编译了以下覆盖：
/dts-v1/;
/plugin/;
/ {
compatible = "rockchip,rk3288-miniarm", "rockchip,rk3288";
fragment@0 {
target = <&dsi0> ;
__overlay__ {
status = "okay";
dsi_panel:panel
{
compatible = "simple-panel-dsi";
reg = <0> ;
//backlight = < & backlight > ;
//dsi,flags = <(MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST)>;
//dsi,format = <MIPI_DSI_FMT_RGB888>;
//bus-format = <MEDIA_BUS_FMT_RGB666_1X18>;
dsi,lanes = <2> ;
status = "okay";
panel-init-sequence = [
05 20 01 29
05 96 01 11
];
panel-exit-sequence = [
05 05 01 28
05 78 01 10
];
disp_timings: display-timings
{
native-mode = <&timing0> ;
timing0:timing0
{
clock-frequency = <64000000> ;
hactive = <768> ;
vactive = <1024> ;
hsync-len = <5> ; //20, 50
hback-porch = <25> ; //50, 56
hfront-porch = <150> ; //50, 30
vsync-len = <1> ;
vback-porch = <15> ;
vfront-porch = <100> ;
hsync-active = <0> ;
vsync-active = <0> ;
de-active = <0> ;
pixelclk-active = <0> ;
};
};
};
};
};
};
当我启动开发板时，我收到以下错误：
[ 0.000000] L2C: failed to init: -19
[ 0.000000] rockchip_clk_register_branches: unknown clock type 9
[ 1.506512] vcc_sd: regulator get failed, ret=-517
[ 1.506917] vcc_flash: regulator get failed, ret=-517
[ 2.185904] rk-vcodec ff9a0000.vpu-service: no regulator for vcodec
[ 2.187620] rk-vcodec ff9a0000.vpu-service: could not find power_model node
[ 2.188089] rk-vcodec ff9c0000.hevc-service: no regulator for vcodec
[ 2.189531] rk-vcodec ff9c0000.hevc-service: could not find power_model node
[ 2.276168] rockchip-spi ff130000.spi: no high_speed pinctrl state
[ 2.288235] rk_gmac-dwmac ff290000.ethernet: phy regulator is not available yet, deferred probing
[ 2.300406] Rockchip WiFi SYS interface (V1.00) ...
[ 2.307694] ff540000.usb supply vusb_d not found, using dummy regulator
[ 2.315123] ff540000.usb supply vusb_a not found, using dummy regulator
[ 2.436886] ff580000.usb supply vusb_d not found, using dummy regulator
[ 2.444329] ff580000.usb supply vusb_a not found, using dummy regulator
[ 2.451950] dwc2 ff580000.usb: dwc2_core_reset() HANG! Soft Reset GRSTCTL=80000001
[ 2.571761] dwc2 ff580000.usb: dwc2_wait_for_mode: Couldn't set device mode
[ 2.849156] tinker-mcu: send_cmds: send command failed, ret = -6
[ 2.855855] tinker-mcu: tinker_mcu_probe: init_cmd_check failed, -6
[ 2.872950] rockchip-sy-mipi-dphy ff770000.syscon:mipi-phy-rx0: invalid resource
[ 2.885551] rk_tsadcv2_temp_to_code: Invalid conversion table: code=4095, temperature=2147483647
[ 2.911600] rockchip_cpuclk_pre_rate_change: Invalid rate : 500000000 for cpuclk
[ 2.993716] ff960000.dsi.0 supply power not found, using dummy regulator
[ 3.001247] dw-mipi-dsi ff960000.dsi: device mode is unsupported
[ 3.007974] panel-simple-dsi: probe of ff960000.dsi.0 failed with error -22
[ 3.015736] ------------[ cut here ]------------
[ 3.020867] WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x78/0x88()
[ 3.029247] sysfs: cannot create duplicate filename '/devices/platform/ff960000.dsi/ff960000.dsi.0'
[ 3.039257] Modules linked in:
[ 3.042640] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.4.199-rockchip #37
[ 3.050238] Hardware name: Rockchip (Device Tree)
[ 3.055453] [<c011126c>] (unwind_backtrace) from [<c010cb54>] (show_stack+0x20/0x24)
[ 3.064033] [<c010cb54>] (show_stack) from [<c06298fc>] (dump_stack+0x90/0xa4)
[ 3.072035] [<c06298fc>] (dump_stack) from [<c01207f4>] (warn_slowpath_common+0x94/0xc4)
[ 3.080995] [<c01207f4>] (warn_slowpath_common) from [<c0120864>] (warn_slowpath_fmt+0x40/0x48)
[ 3.090628] [<c0120864>] (warn_slowpath_fmt) from [<c02df158>] (sysfs_warn_dup+0x78/0x88)
[ 3.099685] [<c02df158>] (sysfs_warn_dup) from [<c02df250>] (sysfs_create_dir_ns+0x94/0xa0)
[ 3.108935] [<c02df250>] (sysfs_create_dir_ns) from [<c062c328>] (kobject_add_internal+0xa4/0x2d4)
[ 3.118856] [<c062c328>] (kobject_add_internal) from [<c062c5ac>] (kobject_add+0x54/0x9c)
[ 3.127914] [<c062c5ac>] (kobject_add) from [<c0758744>] (device_add+0x100/0x5b0)
[ 3.136203] [<c0758744>] (device_add) from [<c0726cb0>] (mipi_dsi_host_register+0x100/0x1dc)
[ 3.145550] [<c0726cb0>] (mipi_dsi_host_register) from [<c0a331dc>] (dw_mipi_dsi_probe+0x80/0xc8)
[ 3.155376] [<c0a331dc>] (dw_mipi_dsi_probe) from [<c075d740>] (platform_drv_probe+0x60/0xbc)
[ 3.164817] [<c075d740>] (platform_drv_probe) from [<c075b938>] (driver_probe_device+0x1f4/0x2e8)
[ 3.174644] [<c075b938>] (driver_probe_device) from [<c075bac0>] (__driver_attach+0x94/0x98)
[ 3.183987] [<c075bac0>] (__driver_attach) from [<c0759a08>] (bus_for_each_dev+0x5c/0xac)
[ 3.193044] [<c0759a08>] (bus_for_each_dev) from [<c075b1d0>] (driver_attach+0x2c/0x30)
[ 3.201908] [<c075b1d0>] (driver_attach) from [<c075adc4>] (bus_add_driver+0x19c/0x220)
[ 3.210771] [<c075adc4>] (bus_add_driver) from [<c075c514>] (driver_register+0x88/0x104)
[ 3.219729] [<c075c514>] (driver_register) from [<c075d688>] (__platform_driver_register+0x50/0x58)
[ 3.229747] [<c075d688>] (__platform_driver_register) from [<c124bd3c>] (dw_mipi_dsi_driver_init+0x1c/0x20)
[ 3.240535] [<c124bd3c>] (dw_mipi_dsi_driver_init) from [<c0101b0c>] (do_one_initcall+0xa0/0x1f0)
[ 3.250362] [<c0101b0c>] (do_one_initcall) from [<c1200fbc>] (kernel_init_freeable+0x1e8/0x28c)
[ 3.259997] [<c1200fbc>] (kernel_init_freeable) from [<c0d3eb98>] (kernel_init+0x18/0x118)
[ 3.269152] [<c0d3eb98>] (kernel_init) from [<c0108110>] (ret_from_fork+0x14/0x24)
[ 3.277578] ---[ end trace 8535bac3d55643c8 ]---
[ 3.282712] kobject_add_internal failed for ff960000.dsi.0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 3.296969] dw-mipi-dsi ff960000.dsi: failed to add DSI device /dsi@ff960000/mipi-panel: -17
[ 3.308501] rockchip-drm display-subsystem: failed to bind ff960000.dsi (ops 0xc0ec512c): -517
[ 3.756271] usb 3-1: config 1 has an invalid interface number: 255 but max is 6
[ 3.764558] usb 3-1: config 1 has no interface number 6
[ 3.882013] tinker-ft5406: tinker_ft5406_probe: wait connected timeout
[ 3.889355] [board_info] create Board_info_proc_file sucessed!
[ 3.895958] project_id_2:0x0, project_id_1:0x0, project_id_0:0x0
[ 3.902782] ram_id_2:0x0, ram_id_1:0x1, ram_id_0:0x0
[ 3.908443] pcb_id_2:0x0, pcb_id_1:0x1, pcb_id_0:0x0
[ 6.079881] rk_gmac-dwmac ff290000.ethernet: cannot get clock clk_mac_speed
[ 6.199189] ff960000.dsi.0 supply power not found, using dummy regulator
[ 6.210087] dw-mipi-dsi ff960000.dsi: device mode is unsupported
[ 6.216907] panel-simple-dsi: probe of ff960000.dsi.0 failed with error -22
[ 6.224765] ------------[ cut here ]------------
[ 6.229957] WARNING: CPU: 1 PID: 102 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x78/0x88()
[ 6.238598] sysfs: cannot create duplicate filename '/devices/platform/ff960000.dsi/ff960000.dsi.0'
[ 6.248675] Modules linked in:
[ 6.252113] CPU: 1 PID: 102 Comm: kworker/u8:1 Tainted: G W 4.4.199-rockchip #37
[ 6.261588] Hardware name: Rockchip (Device Tree)
[ 6.266828] Workqueue: deferwq deferred_probe_work_func
[ 6.272654] [<c011126c>] (unwind_backtrace) from [<c010cb54>] (show_stack+0x20/0x24)
[ 6.281279] [<c010cb54>] (show_stack) from [<c06298fc>] (dump_stack+0x90/0xa4)
[ 6.289326] [<c06298fc>] (dump_stack) from [<c01207f4>] (warn_slowpath_common+0x94/0xc4)
[ 6.298332] [<c01207f4>] (warn_slowpath_common) from [<c0120864>] (warn_slowpath_fmt+0x40/0x48)
[ 6.308014] [<c0120864>] (warn_slowpath_fmt) from [<c02df158>] (sysfs_warn_dup+0x78/0x88)
[ 6.317119] [<c02df158>] (sysfs_warn_dup) from [<c02df250>] (sysfs_create_dir_ns+0x94/0xa0)
[ 6.326401] [<c02df250>] (sysfs_create_dir_ns) from [<c062c328>] (kobject_add_internal+0xa4/0x2d4)
[ 6.336315] [<c062c328>] (kobject_add_internal) from [<c062c5ac>] (kobject_add+0x54/0x9c)
[ 6.345364] [<c062c5ac>] (kobject_add) from [<c0758744>] (device_add+0x100/0x5b0)
[ 6.353646] [<c0758744>] (device_add) from [<c0726cb0>] (mipi_dsi_host_register+0x100/0x1dc)
[ 6.362985] [<c0726cb0>] (mipi_dsi_host_register) from [<c0a331dc>] (dw_mipi_dsi_probe+0x80/0xc8)
[ 6.372802] [<c0a331dc>] (dw_mipi_dsi_probe) from [<c075d740>] (platform_drv_probe+0x60/0xbc)
[ 6.382236] [<c075d740>] (platform_drv_probe) from [<c075b938>] (driver_probe_device+0x1f4/0x2e8)
[ 6.392055] [<c075b938>] (driver_probe_device) from [<c075bb7c>] (__device_attach_driver+0xb8/0xc4)
[ 6.402065] [<c075bb7c>] (__device_attach_driver) from [<c0759ad8>] (bus_for_each_drv+0x54/0xa4)
[ 6.411786] [<c0759ad8>] (bus_for_each_drv) from [<c075b668>] (__device_attach+0x9c/0x124)
[ 6.420929] [<c075b668>] (__device_attach) from [<c075bbe4>] (device_initial_probe+0x1c/0x20)
[ 6.430357] [<c075bbe4>] (device_initial_probe) from [<c075ab00>] (bus_probe_device+0x94/0x9c)
[ 6.439883] [<c075ab00>] (bus_probe_device) from [<c075af6c>] (deferred_probe_work_func+0x74/0xa0)
[ 6.449794] [<c075af6c>] (deferred_probe_work_func) from [<c0139d00>] (process_one_work+0x1f8/0x508)
[ 6.459895] [<c0139d00>] (process_one_work) from [<c013ad64>] (worker_thread+0x68/0x558)
[ 6.468845] [<c013ad64>] (worker_thread) from [<c01403f0>] (kthread+0x118/0x120)
[ 6.477027] [<c01403f0>] (kthread) from [<c0108110>] (ret_from_fork+0x14/0x24)
难道是这个错误：
[ 3.001247] dw-mipi-dsi ff960000.dsi: device mode is unsupported
[ 3.007974] panel-simple-dsi: probe of ff960000.dsi.0 failed with error -22
是所有问题的根源吗？
因为在该错误之后，看起来它开始重复这些消息...有人可以给我一些关于这里可能出现问题的提示或反馈吗？
谢谢。
答案1
端口 0 是输入节点，即应该从视频处理器 vopb 或 vopl 接收数据，而端口 1 用于输出，即用于 dsi 显示面板。