Problems with SN65DSI83 driver integration on i.MX8 Mini

jclsn — Mon, 05 Dec 2022 12:19:00 GMT

Hi,

I've been trying for some time to integrate the new mainline driver, but I can't get the device tree to work

/dts-v1/; #include "imx8mm.dtsi" / { model = "Some board"; compatible = "project,board", "fsl,imx8mm"; chosen { bootargs = "console=ttymxc1,115200 earlycon=ec_imx6q,0x30890000,115200"; stdout-path = &uart2; }; pwm_backlight: 32e10000.mipi_dsi.0 { compatible = "pwm-backlight"; pwms = <&pwm1 0 5000000>; }; panel-lvds { compatible = "panel-lvds"; backlight = <&pwm_backlight>; width-mm = <152>; height-mm = <91>; data-mapping ="jeida-24"; panel-timing { clock-frequency = <25000000>; hactive = <800>; vactive = <480>; hback-porch = <14>; hfront-porch = <26>; vback-porch = <4>; vfront-porch = <8>; hsync-len = <12>; vsync-len = <3>; hsync-active = <0>; vsync-active = <0>; de-active = <1>; pixelclk-active = <1>; }; port { bridge_to_panel: endpoint { remote-endpoint = <&panel_from_bridge>; }; }; }; }; &i2c2 { clock-frequency = <400000>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_i2c2>; status = "okay"; dsi_lvds_bridge: sn65dsi83@2d { compatible = "ti,sn65dsi83"; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_dsi_lvds_bridge>; reg = <0x2d>; ti,dsi-lanes = <4>; ti,lvds-format = <2>; ti,lvds-bpp = <24>; enable-gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>; status = "okay"; ports { #address-cells = <0x01>; #size-cells = <0x00>; port@0 { reg = <0>; bridge_from_dsi: endpoint { data-lanes = <1 2 3 4>; remote-endpoint = <&bridge_to_dsi>; }; }; port@2 { reg = <2>; panel_from_bridge: endpoint { remote-endpoint = <&bridge_to_panel>; }; }; }; }; }; &mipi_dsi { sync-pol = <1>; pwr-delay = <10>; status = "okay"; port@1 { bridge_to_dsi: endpoint { remote-endpoint = <&bridge_from_dsi>; attach-bridge; }; }; };

Here is the boot log

[ 1.645289] i2c i2c-0: IMX I2C adapter registered [ 1.651487] i2c 1-002d: Fixing up cyclic dependency with panel-lvds [ 1.657830] i2c 1-002d: Fixing up cyclic dependency with 32e10000.mipi_dsi [ 1.847748] input: ILI210x Touchscreen as /devices/platform/soc@0/30800000.bus/30a30000.i2c/i2c-1/1-0041/input/input0 [ 1.859240] i2c i2c-1: IMX I2C adapter registered [ 1.865812] i2c i2c-2: IMX I2C adapter registered [ 1.872127] i2c i2c-3: IMX I2C adapter registered [ 1.878042] 30860000.serial: ttymxc0 at MMIO 0x30860000 (irq = 41, base_baud = 5000000) is a IMX [ 1.892803] imx-drm 32c00000.bus:display-subsystem: bound imx-lcdif-crtc.0 (ops lcdif_crtc_ops) [ 1.901714] imx_sec_dsim_drv 32e10000.mipi_dsi: version number is 0x1060200 [ 1.908747] [drm:drm_bridge_attach] *ERROR* failed to attach bridge /soc@0/bus@32c00000/mipi_dsi@32e10000 to encoder DSI-34: -517 [ 1.920430] imx_sec_dsim_drv 32e10000.mipi_dsi: Failed to attach bridge: 32e10000.mipi_dsi [ 1.928706] imx_sec_dsim_drv 32e10000.mipi_dsi: failed to bind sec dsim bridge: -517 [ 1.941849] tcan4x5x spi1.0: no clock found [ 1.946058] tcan4x5x spi1.0: no CAN clock source defined [ 1.981092] tcan4x5x spi1.0: m_can device registered (irq=99, version=32) [ 1.987900] tcan4x5x spi1.0 can0: TCAN4X5X successfully initialized. [ 1.995349] fec 30be0000.ethernet: enable ext clock [ 2.000746] pps pps0: new PPS source ptp0 [ 2.014149] fec 30be0000.ethernet eth0: registered PHC device 0 [ 2.029015] ci_hdrc ci_hdrc.1: EHCI Host Controller [ 2.033939] ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 1 [ 2.054206] ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00 [ 2.060774] hub 1-0:1.0: USB hub found [ 2.064558] hub 1-0:1.0: 1 port detected [ 2.071811] ------------[ cut here ]------------ [ 2.076443] WARNING: CPU: 3 PID: 9 at drivers/reset/core.c:765 __reset_control_get_internal+0x68/0x160 [ 2.085762] Modules linked in: [ 2.088821] CPU: 3 PID: 9 Comm: kworker/u8:0 Not tainted 5.15.77-5.15.77-2.1.0+g9fcb3e81d284 #1 [ 2.097521] Hardware name: Eppendorf i.MX8MM VisioNize Touch Interface 2 DR4 (DT) [ 2.105006] Workqueue: events_unbound deferred_probe_work_func [ 2.110847] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 2.117810] pc : __reset_control_get_internal+0x68/0x160 [ 2.123126] lr : __of_reset_control_get+0x16c/0x1d0 [ 2.128007] sp : ffff800009e9b990 [ 2.131321] x29: ffff800009e9b990 x28: ffff000055c0d5e0 x27: ffff00000530d438 [ 2.138463] x26: 0000000000000001 x25: 0000000000000000 x24: 0000000000000001 [ 2.145606] x23: 0000000000000000 x22: ffff00000452cf80 x21: 0000000000000005 [ 2.152751] x20: ffff00000452cfa0 x19: ffff0000055aa500 x18: ffffffffffffffff [ 2.159894] x17: 000000040044ffff x16: 00500072b5503510 x15: ffff00000530d10a [ 2.167036] x14: ffffffffffffffff x13: 0000000000000018 x12: 0101010101010101 [ 2.174182] x11: 0000000000000018 x10: 0101010101010101 x9 : 0000000000000000 [ 2.181326] x8 : 7f7f7f7f7f7f7f7f x7 : 6c766f21ff726b6b x6 : 000000802370771f [ 2.188470] x5 : fffffbfffdc09120 x4 : 0000000000000000 x3 : 0000000000000001 [ 2.195613] x2 : 0000000000000005 x1 : 0000000000000005 x0 : 0000000000000000

So it says failed to attach bridge. I have no idea what I am doing wrong.

Re: Problems with SN65DSI83 driver integration on i.MX8 Mini

Zhiming_Liu — Wed, 14 Dec 2022 01:35:04 GMT

Send your patch in private message.

Re: Problems with SN65DSI83 driver integration on i.MX8 Mini

mikoli — Tue, 28 Mar 2023 07:24:40 GMT

This does not help others with the same issue, please do not post solutions in private messages

Re: Problems with SN65DSI83 driver integration on i.MX8 Mini

Zhiming_Liu — Wed, 29 Mar 2023 02:22:38 GMT

Hello @mikoli

This is original patch

i.MX ProcessorsのトピックRe: Problems with SN65DSI83 driver integration on i.MX8 Mini

Problems with SN65DSI83 driver integration on i.MX8 Mini

Re: Problems with SN65DSI83 driver integration on i.MX8 Mini

Re: Problems with SN65DSI83 driver integration on i.MX8 Mini

Re: Problems with SN65DSI83 driver integration on i.MX8 Mini