DeviceTree Overlay schlägt fehl

Holger K. Gast #6109758
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Hallo zusammen

Folgendes Problem.
Ich möchte hier ein DeviceTree Overlay erstellen.
Kompilieren und laden klappt schonmal. Jedoch gibts dann Fehlermeldungen 
und der Kernel kann nicht starten.

System: Tinkerboard-s rk3288 Chip Kernel 4.4.199

Hier der ursprüngliche, unveränderte DeviceTree:

1
 dsi@ff960000 {

2
                reg = <0x0 0xff960000 0x0 0x4000>;

3
                interrupts = <0x0 0x13 0x4>;

4
                compatible = "rockchip,rk3288-mipi-dsi", "snps,dw-mipi-dsi";

5
                clock-names = "ref", "pclk";

6
                reset-names = "apb";

7
                clocks = <0x7 0x7e 0x7 0x164>;

8
                power-domains = <0x72 0x9>;

9
                resets = <0x7 0x73>;

10
                status = "okay";

11
                #address-cells = <0x1>;

12
                phandle = <0xe9>;

13
                #size-cells = <0x0>;

14
                rockchip,grf = <0x47>;

15


16
                ports {

17
                        #address-cells = <0x1>;

18
                        #size-cells = <0x0>;

19


20
                        port {

21
                                #address-cells = <0x1>;

22
                                phandle = <0xea>;

23
                                #size-cells = <0x0>;

24


25
                                endpoint@0 {

26
                                        reg = <0x0>;

27
                                        remote-endpoint = <0x89>;

28
                                        phandle = <0x81>;

29
                                };

30


31
                                endpoint@1 {

32
                                        reg = <0x1>;

33
                                        remote-endpoint = <0x8a>;

34
                                        phandle = <0x86>;

35
                                };

36
                        };

37
                };

38


39
                mipi-panel {

40
                        reg = <0x0>;

41
                        compatible = "asus,tc358762";

42
                        status = "okay";

43
                        phandle = <0xeb>;

44
                };

45
        };

46


47
dsi@ff964000 {

48
                reg = <0x0 0xff964000 0x0 0x4000>;

49
                interrupts = <0x0 0x14 0x4>;

50
                compatible = "rockchip,rk3288-mipi-dsi", "snps,dw-mipi-dsi";

51
                clock-names = "ref", "pclk";

52
                reset-names = "apb";

53
                clocks = <0x7 0x7e 0x7 0x165>;

54
                power-domains = <0x72 0x9>;

55
                resets = <0x7 0x74>;

56
                status = "disabled";

57
                #address-cells = <0x1>;

58
                phandle = <0xec>;

59
                #size-cells = <0x0>;

60
                rockchip,grf = <0x47>;

61


62
                ports {

63
                        #address-cells = <0x1>;

64
                        #size-cells = <0x0>;

65


66
                        port {

67
                                #address-cells = <0x1>;

68
                                phandle = <0xed>;

69
                                #size-cells = <0x0>;

70


71
                                endpoint@0 {

72
                                        reg = <0x0>;

73
                                        remote-endpoint = <0x8b>;

74
                                        phandle = <0x83>;

75
 };

76


77
                                endpoint@1 {

78
                                        reg = <0x1>;

79
                                        remote-endpoint = <0x8c>;

80
                                        phandle = <0x88>;

81
                                };

82
                        };

83
                };

84
        };

85


86


87
....

88


89
 aliases {

90
                i2c0 = "/i2c@ff650000";

91
                i2c1 = "/i2c@ff140000";

92
                i2c2 = "/i2c@ff660000";

93
                i2c3 = "/i2c@ff150000";

94
                i2c4 = "/i2c@ff160000";

95
                i2c5 = "/i2c@ff170000";

96
                dsi0 = "/dsi@ff960000";

97
                dsi1 = "/dsi@ff964000";

98
                spi0 = "/spi@ff110000";

99
                spi1 = "/spi@ff120000";

100
                spi2 = "/spi@ff130000";

101
                mshc0 = "/dwmmc@ff0f0000";

102
                mshc1 = "/dwmmc@ff0c0000";

103
                mshc2 = "/dwmmc@ff0d0000";

104
                mshc3 = "/dwmmc@ff0e0000";

105
                serial0 = "/serial@ff180000";

106
                serial1 = "/serial@ff190000";

107
                serial2 = "/serial@ff690000";

108
                serial3 = "/serial@ff1b0000";

109
                serial4 = "/serial@ff1c0000";

110
                testcase-alias = "/testcase-data";

111
                ethernet0 = "/ethernet@ff290000";

112
        };


Nun möchte ich an dsi0 ein anderes Panel hängen. Dazu habe ich folgendes 
versucht:


1
/dts-v1/;

2
/plugin/;

3


4
/ {

5
    compatible = "rockchip,rk3288-miniarm", "rockchip,rk3288";

6


7
    fragment@0 {

8
        target = <&dsi0> ;

9
        __overlay__ {

10
            status = "okay";

11
            dsi_panel:panel 

12
            {

13
                compatible = "simple-panel-dsi";

14
                reg = <0> ;

15
                //backlight = < & backlight > ;

16
                //dsi,flags = <(MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST)>;

17
                //dsi,format = <MIPI_DSI_FMT_RGB888>;

18
                //bus-format = <MEDIA_BUS_FMT_RGB666_1X18>;

19
                dsi,lanes = <2> ;

20
                status = "okay";

21
                panel-init-sequence = [

22
                    05 20 01 29

23
                    05 96 01 11

24
                ];

25
                panel-exit-sequence = [

26
                    05 05 01 28

27
                    05 78 01 10

28
                ];

29
                disp_timings: display-timings 

30
                {

31
                    native-mode = <&timing0> ;

32
                    timing0:timing0 

33
                    {

34
                        clock-frequency = <64000000> ;

35
                        hactive = <768> ;

36
                        vactive = <1024> ;

37
                        hsync-len = <5> ; //20, 50

38
                        hback-porch = <25> ; //50, 56

39
                        hfront-porch = <150> ; //50, 30

40
                        vsync-len = <1> ;

41
                        vback-porch = <15> ;

42
                        vfront-porch = <100> ;

43
                        hsync-active = <0> ;

44
                        vsync-active = <0> ;

45
                        de-active = <0> ;

46
                        pixelclk-active = <0> ;

47
                    };

48
                };

49
            };

50
        };


Leider erzeugt dieses Overlay beim Laden folgenden Fehlermeldungen:

1
[    0.000000] L2C: failed to init: -19

2
[    0.000000] rockchip_clk_register_branches: unknown clock type 9

3
[    1.506512] vcc_sd: regulator get failed, ret=-517

4
[    1.506917] vcc_flash: regulator get failed, ret=-517

5
[    2.185904] rk-vcodec ff9a0000.vpu-service: no regulator for vcodec

6
[    2.187620] rk-vcodec ff9a0000.vpu-service: could not find power_model node

7
[    2.188089] rk-vcodec ff9c0000.hevc-service: no regulator for vcodec

8
[    2.189531] rk-vcodec ff9c0000.hevc-service: could not find power_model node

9
[    2.276168] rockchip-spi ff130000.spi: no high_speed pinctrl state

10
[    2.288235] rk_gmac-dwmac ff290000.ethernet: phy regulator is not available yet, deferred probing

11
[    2.300406] Rockchip WiFi SYS interface (V1.00) ...

12
[    2.307694] ff540000.usb supply vusb_d not found, using dummy regulator

13
[    2.315123] ff540000.usb supply vusb_a not found, using dummy regulator

14
[    2.436886] ff580000.usb supply vusb_d not found, using dummy regulator

15
[    2.444329] ff580000.usb supply vusb_a not found, using dummy regulator

16
[    2.451950] dwc2 ff580000.usb: dwc2_core_reset() HANG! Soft Reset GRSTCTL=80000001

17
[    2.571761] dwc2 ff580000.usb: dwc2_wait_for_mode: Couldn't set device mode

18
[    2.849156] tinker-mcu: send_cmds: send command failed, ret = -6

19
[    2.855855] tinker-mcu: tinker_mcu_probe: init_cmd_check failed, -6

20
[    2.872950] rockchip-sy-mipi-dphy ff770000.syscon:mipi-phy-rx0: invalid resource

21
[    2.885551] rk_tsadcv2_temp_to_code: Invalid conversion table: code=4095, temperature=2147483647

22
[    2.911600] rockchip_cpuclk_pre_rate_change: Invalid rate : 500000000 for cpuclk

23
[    2.993716] ff960000.dsi.0 supply power not found, using dummy regulator

24
[    3.001247] dw-mipi-dsi ff960000.dsi: device mode is unsupported

25
[    3.007974] panel-simple-dsi: probe of ff960000.dsi.0 failed with error -22

26
[    3.015736] ------------[ cut here ]------------

27
[    3.020867] WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x78/0x88()

28
[    3.029247] sysfs: cannot create duplicate filename '/devices/platform/ff960000.dsi/ff960000.dsi.0'

29
[    3.039257] Modules linked in:

30
[    3.042640] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.4.199-rockchip #37

31
[    3.050238] Hardware name: Rockchip (Device Tree)

32
[    3.055453] [<c011126c>] (unwind_backtrace) from [<c010cb54>] (show_stack+0x20/0x24)

33
[    3.064033] [<c010cb54>] (show_stack) from [<c06298fc>] (dump_stack+0x90/0xa4)

34
[    3.072035] [<c06298fc>] (dump_stack) from [<c01207f4>] (warn_slowpath_common+0x94/0xc4)

35
[    3.080995] [<c01207f4>] (warn_slowpath_common) from [<c0120864>] (warn_slowpath_fmt+0x40/0x48)

36
[    3.090628] [<c0120864>] (warn_slowpath_fmt) from [<c02df158>] (sysfs_warn_dup+0x78/0x88)

37
[    3.099685] [<c02df158>] (sysfs_warn_dup) from [<c02df250>] (sysfs_create_dir_ns+0x94/0xa0)

38
[    3.108935] [<c02df250>] (sysfs_create_dir_ns) from [<c062c328>] (kobject_add_internal+0xa4/0x2d4)

39
[    3.118856] [<c062c328>] (kobject_add_internal) from [<c062c5ac>] (kobject_add+0x54/0x9c)

40
[    3.127914] [<c062c5ac>] (kobject_add) from [<c0758744>] (device_add+0x100/0x5b0)

41
[    3.136203] [<c0758744>] (device_add) from [<c0726cb0>] (mipi_dsi_host_register+0x100/0x1dc)

42
[    3.145550] [<c0726cb0>] (mipi_dsi_host_register) from [<c0a331dc>] (dw_mipi_dsi_probe+0x80/0xc8)

43
[    3.155376] [<c0a331dc>] (dw_mipi_dsi_probe) from [<c075d740>] (platform_drv_probe+0x60/0xbc)

44
[    3.164817] [<c075d740>] (platform_drv_probe) from [<c075b938>] (driver_probe_device+0x1f4/0x2e8)

45
[    3.174644] [<c075b938>] (driver_probe_device) from [<c075bac0>] (__driver_attach+0x94/0x98)

46
[    3.183987] [<c075bac0>] (__driver_attach) from [<c0759a08>] (bus_for_each_dev+0x5c/0xac)

47
[    3.193044] [<c0759a08>] (bus_for_each_dev) from [<c075b1d0>] (driver_attach+0x2c/0x30)

48
[    3.201908] [<c075b1d0>] (driver_attach) from [<c075adc4>] (bus_add_driver+0x19c/0x220)

49
[    3.210771] [<c075adc4>] (bus_add_driver) from [<c075c514>] (driver_register+0x88/0x104)

50
[    3.219729] [<c075c514>] (driver_register) from [<c075d688>] (__platform_driver_register+0x50/0x58)

51
[    3.229747] [<c075d688>] (__platform_driver_register) from [<c124bd3c>] (dw_mipi_dsi_driver_init+0x1c/0x20)

52
[    3.240535] [<c124bd3c>] (dw_mipi_dsi_driver_init) from [<c0101b0c>] (do_one_initcall+0xa0/0x1f0)

53
[    3.250362] [<c0101b0c>] (do_one_initcall) from [<c1200fbc>] (kernel_init_freeable+0x1e8/0x28c)

54
[    3.259997] [<c1200fbc>] (kernel_init_freeable) from [<c0d3eb98>] (kernel_init+0x18/0x118)

55
[    3.269152] [<c0d3eb98>] (kernel_init) from [<c0108110>] (ret_from_fork+0x14/0x24)

56
[    3.277578] ---[ end trace 8535bac3d55643c8 ]---

57
[    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.

58
[    3.296969] dw-mipi-dsi ff960000.dsi: failed to add DSI device /dsi@ff960000/mipi-panel: -17

59
[    3.308501] rockchip-drm display-subsystem: failed to bind ff960000.dsi (ops 0xc0ec512c): -517

60
[    3.756271] usb 3-1: config 1 has an invalid interface number: 255 but max is 6

61
[    3.764558] usb 3-1: config 1 has no interface number 6

62
[    3.882013] tinker-ft5406: tinker_ft5406_probe: wait connected timeout

63
[    3.889355] [board_info] create Board_info_proc_file sucessed!

64
[    3.895958] project_id_2:0x0, project_id_1:0x0, project_id_0:0x0

65
[    3.902782] ram_id_2:0x0, ram_id_1:0x1, ram_id_0:0x0

66
[    3.908443] pcb_id_2:0x0, pcb_id_1:0x1, pcb_id_0:0x0

67
[    6.079881] rk_gmac-dwmac ff290000.ethernet: cannot get clock clk_mac_speed

68
[    6.199189] ff960000.dsi.0 supply power not found, using dummy regulator

69
[    6.210087] dw-mipi-dsi ff960000.dsi: device mode is unsupported

70
[    6.216907] panel-simple-dsi: probe of ff960000.dsi.0 failed with error -22

71
[    6.224765] ------------[ cut here ]------------

72
[    6.229957] WARNING: CPU: 1 PID: 102 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x78/0x88()

73
[    6.238598] sysfs: cannot create duplicate filename '/devices/platform/ff960000.dsi/ff960000.dsi.0'

74
[    6.248675] Modules linked in:

75
[    6.252113] CPU: 1 PID: 102 Comm: kworker/u8:1 Tainted: G        W       4.4.199-rockchip #37

76
[    6.261588] Hardware name: Rockchip (Device Tree)

77
[    6.266828] Workqueue: deferwq deferred_probe_work_func

78
[    6.272654] [<c011126c>] (unwind_backtrace) from [<c010cb54>] (show_stack+0x20/0x24)

79
[    6.281279] [<c010cb54>] (show_stack) from [<c06298fc>] (dump_stack+0x90/0xa4)

80
[    6.289326] [<c06298fc>] (dump_stack) from [<c01207f4>] (warn_slowpath_common+0x94/0xc4)

81
[    6.298332] [<c01207f4>] (warn_slowpath_common) from [<c0120864>] (warn_slowpath_fmt+0x40/0x48)

82
[    6.308014] [<c0120864>] (warn_slowpath_fmt) from [<c02df158>] (sysfs_warn_dup+0x78/0x88)

83
[    6.317119] [<c02df158>] (sysfs_warn_dup) from [<c02df250>] (sysfs_create_dir_ns+0x94/0xa0)

84
[    6.326401] [<c02df250>] (sysfs_create_dir_ns) from [<c062c328>] (kobject_add_internal+0xa4/0x2d4)

85
[    6.336315] [<c062c328>] (kobject_add_internal) from [<c062c5ac>] (kobject_add+0x54/0x9c)

86
[    6.345364] [<c062c5ac>] (kobject_add) from [<c0758744>] (device_add+0x100/0x5b0)

87
[    6.353646] [<c0758744>] (device_add) from [<c0726cb0>] (mipi_dsi_host_register+0x100/0x1dc)

88
[    6.362985] [<c0726cb0>] (mipi_dsi_host_register) from [<c0a331dc>] (dw_mipi_dsi_probe+0x80/0xc8)

89
[    6.372802] [<c0a331dc>] (dw_mipi_dsi_probe) from [<c075d740>] (platform_drv_probe+0x60/0xbc)

90
[    6.382236] [<c075d740>] (platform_drv_probe) from [<c075b938>] (driver_probe_device+0x1f4/0x2e8)

91
[    6.392055] [<c075b938>] (driver_probe_device) from [<c075bb7c>] (__device_attach_driver+0xb8/0xc4)

92
[    6.402065] [<c075bb7c>] (__device_attach_driver) from [<c0759ad8>] (bus_for_each_drv+0x54/0xa4)

93
[    6.411786] [<c0759ad8>] (bus_for_each_drv) from [<c075b668>] (__device_attach+0x9c/0x124)

94
[    6.420929] [<c075b668>] (__device_attach) from [<c075bbe4>] (device_initial_probe+0x1c/0x20)

95
[    6.430357] [<c075bbe4>] (device_initial_probe) from [<c075ab00>] (bus_probe_device+0x94/0x9c)

96
[    6.439883] [<c075ab00>] (bus_probe_device) from [<c075af6c>] (deferred_probe_work_func+0x74/0xa0)

97
[    6.449794] [<c075af6c>] (deferred_probe_work_func) from [<c0139d00>] (process_one_work+0x1f8/0x508)

98
[    6.459895] [<c0139d00>] (process_one_work) from [<c013ad64>] (worker_thread+0x68/0x558)

99
[    6.468845] [<c013ad64>] (worker_thread) from [<c01403f0>] (kthread+0x118/0x120)

100
[    6.477027] [<c01403f0>] (kthread) from [<c0108110>] (ret_from_fork+0x14/0x24)


Nun fällt mir besonders diese hier auf:

1
[    3.001247] dw-mipi-dsi ff960000.dsi: device mode is unsupported

2
[    3.007974] panel-simple-dsi: probe of ff960000.dsi.0 failed with error -22



Kann es nun sein, dass nur aufgrund des unsupporteten Modus das ganze 
hängt?

Bin über jegliche Vorschläge dankbar. Denn aktuell komme ich nicht mehr 
weiter.

Grüsse
Holger
Antwort Zitieren Bearbeiten Thread verschieben Thread sperren Anmeldepflicht aktivieren Anpinnen Thread löschen Thread mit anderem zusammenführen Beitrag melden
Holger K. #6110116
Lesenswert?
• ▲
▼ 
So, ich konnte nun die Fehlermeldung beheben indem ich den Mode 
entsprechend definiert habe:

1
dsi,flags = <7>;

2
dsi,format = <0>;


Nachgeschaut hab ich die Werte hier:
https://elixir.bootlin.com/linux/latest/source/include/drm/drm_mipi_dsi.h#L113


Nun erhalte ich die vorigen Fehlermeldungen nicht mehr.
Die erwähnte Meldung

1
sysfs: cannot create duplicate filename '/devices/platform/ff960000.dsi/ff960000.dsi.0'

2
.....

3
[    3.267737] kobject_add_internal failed for ff960000.dsi.0 with -EEXIST, don't try to register things with the same name in the same directory.

4
[    3.281974] dw-mipi-dsi ff960000.dsi: failed to add DSI device /dsi@ff960000/mipi-panel: -17


bleibt jedoch bestehen.
Muss ich hier am DeviceTreeOverlay etwas ändern?

Danke
Antwort Zitieren Bearbeiten Löschen Beitrag melden
Holger K. #6110157
Lesenswert?
• ▲
▼ 
So.. Bin nun wieder etwas weiter.

Ich musste anstelle des alias (dsi0) den Pfad verwenden. Und das 
plugin entfernen.

Gleichzeitig musste ich noch den alten mipi-panel eintrag disablen.

So siehst nun aus:

1
/dts-v1/;

2
/ {

3
    compatible = "rockchip,rk3288-miniarm", "rockchip,rk3288";

4


5
    fragment@0 {

6
                target-path = "/dsi@ff960000/mipi-panel";

7
                __overlay__{

8
                        status = "disabled";

9
                };

10


11
        };

12


13
        fragment@1 {

14
        target-path = "/dsi@ff960000" ;

15
        __overlay__ {

16
            status = "okay";

17
            dsi_panel:panel 

18
            {

19
                compatible = "simple-panel-dsi";

20
                reg = <0> ;

21
                //backlight = < & backlight > ;

22
                dsi,flags = <0x7>;

23
                dsi,format = <0x0>;

24
                //bus-format = <MEDIA_BUS_FMT_RGB666_1X18>;

25
                dsi,lanes = <2> ;

26
                status = "okay";

27
                panel-init-sequence = [

28
                    05 20 01 29

29
                    05 96 01 11

30
                ];

31
                panel-exit-sequence = [

32
                    05 05 01 28

33
                    05 78 01 10

34
                ];

35
                disp_timings: display-timings 

36
                {

37
                    native-mode = <&timing0> ;

38
                    timing0:timing0 

39
                    {

40
                        clock-frequency = <64000000> ;

41
                        hactive = <768> ;

42
                        vactive = <1024> ;

43
                        hsync-len = <5> ; //20, 50

44
                        hback-porch = <25> ; //50, 56

45
                        hfront-porch = <150> ; //50, 30

46
                        vsync-len = <1> ;

47
                        vback-porch = <15> ;

48
                        vfront-porch = <100> ;

49
                        hsync-active = <0> ;

50
                        vsync-active = <0> ;

51
                        de-active = <0> ;

52
                        pixelclk-active = <0> ;

53
                    };

54
                };

55
            };

56
        };
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